/**
 * Sikshya Learn UI — SaaS learning workspace (long-session friendly).
 *
 * Notes:
 * - This file styles only the distraction-free Learn shell.
 * - Keep contrast comfortable (avoid pure black on pure white).
 */

:root {
  /* =========================================================
   * Sikshya Learn — STYLE GUIDE (Design Tokens)
   * =======================================================*/

  /* Layout */
  --sikshya-learn-topbar-h: 56px;
  --sikshya-learn-railhead-h: 52px;
  --sikshya-learn-railhead-pad: 16px;
  --sikshya-learn-sidebar-w: 400px;
  --sikshya-learn-sidebar-w-current: var(--sikshya-learn-sidebar-w);
  --sikshya-learn-gutter: 16px;
  /* Reserved bottom space inside the right learn column (lesson/quiz nav strip) */
  --sikshya-learn-content-nav-h: 72px;
  /* Offset for safe area; admin-bar is handled separately to avoid double-spacing */
  --sikshya-learn-top-offset: env(safe-area-inset-top, 0px);
  /* Topbar visibility multiplier (1 visible, 0 scrolled away) */
  --sikshya-learn-topbar-visible: 1;

  /* Curriculum sidebar — derived from Sikshya Learn tokens (brand blue, neutral surfaces) */
  --sikshya-curriculum-accent: var(--sikshya-learn-primary);
  --sikshya-curriculum-accent-strong: #1d4ed8;
  --sikshya-curriculum-section-open: rgba(15, 23, 42, 0.04);
  --sikshya-curriculum-row-active: rgba(37, 99, 235, 0.08);
  --sikshya-curriculum-row-hover: rgba(15, 23, 42, 0.04);
  --sikshya-curriculum-check-todo: rgba(17, 24, 39, 0.35);

  /* Color system (comfortable contrast) */
  --sikshya-learn-bg: #f5f7ff;
  --sikshya-learn-surface: #ffffff;
  --sikshya-learn-surface-2: #f8fafc;
  --sikshya-learn-surface-3: #eef2ff;
  --sikshya-learn-text: #0f172a;
  --sikshya-learn-muted: #64748b;
  --sikshya-learn-border: #e2e8f0;
  /* Top bar — light surface (matches panels + public Sikshya aesthetic) */
  --sikshya-learn-topbar-bg: rgba(37, 99, 235, 0.08);
  --sikshya-learn-topbar-edge: rgba(15, 23, 42, 0.08);
  --sikshya-learn-topbar-shadow: 0 1px 0 rgba(15, 23, 42, 0.05), 0 6px 18px rgba(15, 23, 42, 0.05);

  /* Brand / actions */
  --sikshya-learn-primary: #2563eb;
  --sikshya-learn-primary-2: #60a5fa;
  --sikshya-learn-danger: #dc2626;
  --sikshya-learn-success: #16a34a;

  /* Typography scale */
  --sikshya-learn-fs-11: 11px;
  --sikshya-learn-fs-12: 12px;
  --sikshya-learn-fs-13: 13px;
  --sikshya-learn-fs-14: 14px;
  --sikshya-learn-fs-15: 15px;
  --sikshya-learn-fs-16: 16px;
  --sikshya-learn-fs-18: 18px;
  --sikshya-learn-fs-22: 22px;

  /* Long-session typography */
  --sikshya-learn-lh-body: 1.65;
  --sikshya-learn-lh-tight: 1.25;
  --sikshya-learn-tracking-tight: -0.015em;

  /* Spacing scale */
  --sikshya-learn-space-6: 6px;
  --sikshya-learn-space-8: 8px;
  --sikshya-learn-space-10: 10px;
  --sikshya-learn-space-12: 12px;
  --sikshya-learn-space-14: 14px;
  --sikshya-learn-space-16: 16px;

  /* Radius + shadows */
  --sikshya-learn-radius-8: 8px;
  --sikshya-learn-radius-10: 10px;
  --sikshya-learn-radius-12: 12px;
  --sikshya-learn-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --sikshya-learn-shadow-md: 0 1px 2px rgba(16, 24, 40, 0.06), 0 10px 28px rgba(16, 24, 40, 0.08);
  --sikshya-learn-shadow-panel: 0 1px 3px rgba(16, 24, 40, 0.05), 0 6px 24px rgba(16, 24, 40, 0.04);

  /* Main column reading width (prose / tabs) */
  --sikshya-learn-prose-max: 52rem;

  /* Focus ring (accessibility) */
  --sikshya-learn-focus: var(--sikshya-learn-primary);
  --sikshya-learn-focus-shadow: 0 0 0 4px rgba(37, 99, 235, 0.16);

  /* UI neutrals for long-session states */
  --sikshya-learn-ink: rgba(15, 23, 42, 0.92);
  --sikshya-learn-hover: rgba(15, 23, 42, 0.04);
  --sikshya-learn-press: rgba(15, 23, 42, 0.06);
  --sikshya-learn-accent-wash: rgba(37, 99, 235, 0.06);
  --sikshya-learn-accent-wash-2: rgba(37, 99, 235, 0.10);
  --sikshya-learn-sidebar-active: rgba(37, 99, 235, 0.10);
}

/* Hub / shell-only mode: hide curriculum rail */
.sikshya-learning-shell--hub {
  --sikshya-learn-sidebar-w-current: 0px;
}

.sikshya-learning-shell--hub .sikshya-learnSidebar,
.sikshya-learning-shell--hub .sikshya-learnOverlay {
  display: none !important;
}

/* Collapsible sidebar (desktop + mobile) */
.sikshya-sidebarCollapsed {
  --sikshya-learn-sidebar-w-current: 0px;
}

/* WP adds layout offset for admin bar; don't double-count it */
.admin-bar.sikshya-learning-shell {
  --sikshya-learn-top-offset: 0px;
}

/* Base */
.sikshya-learning-shell,
.sikshya-learning-shell * {
  box-sizing: border-box;
}

.sikshya-learning-shell {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  font-size: var(--sikshya-learn-fs-15);
  line-height: var(--sikshya-learn-lh-body);
  background: var(--sikshya-learn-bg);
  color: var(--sikshya-learn-text);
  max-width: 100vw;
  overflow-x: hidden;
  scroll-padding-top: calc(var(--sikshya-learn-top-offset) + var(--sikshya-learn-topbar-h) + 8px);
}

.sikshya-learning-shell a {
  color: inherit;
}

.sikshya-muted {
  color: var(--sikshya-learn-muted);
}

.sikshya-zeroMargin {
  margin: 0;
}

.sikshya-learning-shell button,
.sikshya-learning-shell input,
.sikshya-learning-shell select,
.sikshya-learning-shell textarea {
  font: inherit;
}

.sikshya-learning-app {
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
}

/* Lesson / quiz / in-course learn: fill viewport so the main row can split into two equal-height columns */
.sikshya-learning-shell--lesson .sikshya-learning-app,
.sikshya-learning-shell--quiz .sikshya-learning-app,
.sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learning-app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  /* Lock the shell to one viewport so the curriculum rail cannot stretch with page-length content */
  max-height: 100dvh;
  overflow: hidden;
}

/* Logged-in WP admin bar sits above the shell — shorten the workspace so nothing clips under it */
.admin-bar.sikshya-learning-shell--lesson .sikshya-learning-app,
.admin-bar.sikshya-learning-shell--quiz .sikshya-learning-app,
.admin-bar.sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learning-app {
  max-height: calc(100dvh - 32px);
}

.sikshya-learning-shell--lesson .sikshya-learnLayout,
.sikshya-learning-shell--quiz .sikshya-learnLayout,
.sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnLayout {
  flex: 1 1 auto;
  min-height: 0;
  grid-template-rows: auto minmax(0, 1fr);
}

/* Pin the workspace row to the viewport so the curriculum sidebar does not stretch with content height */
.sikshya-learning-shell--lesson .sikshya-learnLayout > .sikshya-learnMain,
.sikshya-learning-shell--quiz .sikshya-learnLayout > .sikshya-learnMain,
.sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnLayout > .sikshya-learnMain {
  min-height: 0;
}

/* Layout shell */
.sikshya-learnLayout {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  min-height: 100dvh;
}

/* Top bar — light chrome: brand, current context, exit (Sikshya Learn) */
.sikshya-learnTopbar {
  position: sticky;
  top: var(--sikshya-learn-top-offset);
  z-index: 50;
  height: var(--sikshya-learn-topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 0;
  padding-bottom: 0;
  padding-left: max(var(--sikshya-learn-railhead-pad), env(safe-area-inset-left));
  padding-right: max(var(--sikshya-learn-railhead-pad), env(safe-area-inset-right));
  background: color-mix(in srgb, var(--sikshya-learn-surface) 72%, transparent);
  backdrop-filter: saturate(1.2) blur(12px);
  -webkit-backdrop-filter: saturate(1.2) blur(12px);
  color: var(--sikshya-learn-text);
  border-bottom: 1px solid var(--sikshya-learn-topbar-edge);
  box-shadow: var(--sikshya-learn-topbar-shadow);
}

.sikshya-learnTopbar__left {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
  flex: 1 1 auto;
}

.sikshya-learnTopbar .sikshya-iconBtn {
  flex: 0 0 auto;
  color: var(--sikshya-learn-text);
  border-radius: var(--sikshya-learn-radius-10);
}

.sikshya-learnTopbar .sikshya-iconBtn:hover {
  background: var(--sikshya-learn-accent-wash);
  color: var(--sikshya-learn-primary);
}

.sikshya-learnTopbar .sikshya-iconBtn:active {
  background: var(--sikshya-learn-accent-wash-2);
}

.sikshya-learnTopbar__brand {
  flex: 0 0 auto;
  font-weight: 800;
  font-size: var(--sikshya-learn-fs-14);
  letter-spacing: var(--sikshya-learn-tracking-tight);
  color: var(--sikshya-learn-text);
  text-decoration: none;
  white-space: nowrap;
  padding: 6px 8px;
  margin: 0 2px 0 0;
  border-radius: var(--sikshya-learn-radius-8);
  transition: color 0.15s ease, background 0.15s ease;
}

.sikshya-learnTopbar__brand:hover {
  color: var(--sikshya-learn-primary);
  background: var(--sikshya-learn-accent-wash);
}

.sikshya-learnTopbar__brand:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: 2px;
}

.sikshya-learnTopbar__title {
  min-width: 0;
  flex: 1 1 auto;
  margin: 0;
  padding: 4px 0 4px 14px;
  border-left: 1px solid var(--sikshya-learn-border);
  font-weight: 600;
  font-size: var(--sikshya-learn-fs-13);
  line-height: var(--sikshya-learn-lh-tight);
  letter-spacing: var(--sikshya-learn-tracking-tight);
  color: var(--sikshya-learn-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sikshya-learnTopbar__right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

/* Topbar progress (center) */
.sikshya-learnTopbar__middle {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none; /* allow clicks only on button */
}

.sikshya-learnTopbar__middle > * {
  pointer-events: auto;
}

@media (max-width: 640px) {
  .sikshya-learnTopbar__middle {
    display: none;
  }
}

.sikshya-learnTopbar__right .sikshya-btn {
  border-radius: var(--sikshya-learn-radius-10);
}

@media (max-width: 1023px) {
  .sikshya-learnTopbar__title {
    max-width: min(52vw, 280px);
  }
}

@media (max-width: 480px) {
  .sikshya-learnTopbar__brand {
    max-width: 38vw;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* =========================================================
 * Buttons (Learn Style Guide Component)
 * - Primary: main CTA (Continue, Mark complete, Start quiz)
 * - Outline: secondary actions on light chrome (Exit learning)
 * - Light: subtle actions on dark surfaces (Prev/Next on player)
 * - Dark: optional contrast on dark surfaces
 * =======================================================*/
.sikshya-learning-shell .sikshya-btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  font-weight: 750;
  letter-spacing: var(--sikshya-learn-tracking-tight);
  border-radius: var(--sikshya-learn-radius-10);
  padding: 10px 14px;
  font-size: var(--sikshya-learn-fs-14);
  line-height: var(--sikshya-learn-lh-tight);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  box-shadow: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 120ms ease;
}

.sikshya-learning-shell .sikshya-btn:active {
  transform: translateY(1px);
}

.sikshya-learning-shell .sikshya-btn:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: 2px;
  box-shadow: var(--sikshya-learn-focus-shadow);
}

.sikshya-learning-shell .sikshya-btn[aria-disabled="true"],
.sikshya-learning-shell .sikshya-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}

/* Size */
.sikshya-learning-shell .sikshya-btn--sm {
  padding: 8px 12px;
  font-size: var(--sikshya-learn-fs-13);
}

/* Primary */
.sikshya-learning-shell .sikshya-btn--primary {
  background: var(--sikshya-learn-primary);
  color: #fff;
  border-color: rgba(37, 99, 235, 0.26);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.16) inset;
}

.sikshya-learning-shell .sikshya-btn--primary:hover {
  background: var(--sikshya-curriculum-accent-strong);
}

/* Outline — secondary actions (e.g. Exit learning on light top bar) */
.sikshya-learning-shell .sikshya-btn--outline {
  background: var(--sikshya-learn-surface);
  color: var(--sikshya-learn-text);
  border-color: var(--sikshya-learn-border);
  font-weight: 700;
  box-shadow: none;
}

.sikshya-learning-shell .sikshya-btn--outline:hover {
  background: var(--sikshya-learn-surface-2);
  border-color: rgba(37, 99, 235, 0.20);
  color: var(--sikshya-learn-text);
}

.sikshya-learning-shell .sikshya-btn--outline:active {
  background: var(--sikshya-learn-surface-3);
}

/* Dark — reserved for future dark surfaces (e.g. embedded players); not used on light top bar */
.sikshya-learning-shell .sikshya-btn--dark {
  background: #1f2937;
  color: #f9fafb;
  border-color: rgba(15, 23, 42, 0.5);
}

.sikshya-learning-shell .sikshya-btn--dark:hover {
  background: #111827;
  border-color: #111827;
}

/* Light */
.sikshya-learning-shell .sikshya-btn--light {
  background: var(--sikshya-learn-surface-2);
  color: var(--sikshya-learn-text);
  border-color: var(--sikshya-learn-border);
}

.sikshya-learning-shell .sikshya-btn--light:hover {
  background: var(--sikshya-learn-surface-3);
  border-color: rgba(37, 99, 235, 0.16);
}

/* Icon sizing inside buttons */
.sikshya-learning-shell .sikshya-btn svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.sikshya-iconBtn {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--sikshya-learn-radius-10);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.sikshya-iconBtn:hover {
  background: var(--sikshya-learn-press);
}

.sikshya-iconBtn:active {
  transform: translateY(1px);
}

.sikshya-iconBtn:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: 2px;
}

.sikshya-iconBtn svg {
  width: 18px;
  height: 18px;
  display: block;
}

/* Main area — lesson/quiz / in-course learn: two columns; hub mode unchanged */
.sikshya-learnMain {
  position: relative;
  min-width: 0;
}

@media (min-width: 1024px) {
  .sikshya-learning-shell--lesson .sikshya-learnMain,
  .sikshya-learning-shell--quiz .sikshya-learnMain,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnMain {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    flex: 1 1 auto;
    min-height: 0;
  }
}

/*
 * Sidebar: position fixed + top/bottom pins full height under the sticky top bar.
 * (Matches “sticky” learner expectation: column stays put while main content scrolls.)
 */
.sikshya-learnSidebar {
  position: fixed;
  top: calc(var(--sikshya-learn-top-offset) + (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible)));
  left: 0;
  bottom: 0;
  width: var(--sikshya-learn-sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--sikshya-learn-surface);
  border-right: 1px solid var(--sikshya-learn-border);
  z-index: 40;
  /* Sidebar itself should NOT scroll; only the outline area scrolls. */
  overflow: hidden;
  /* Prevent scroll-chaining from sidebar → main content. */
  overscroll-behavior: contain;
  box-shadow: 1px 0 0 rgba(15, 23, 42, 0.03), 6px 0 32px rgba(15, 23, 42, 0.04);
  will-change: transform;
  transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

@media (min-width: 1024px) {
  .sikshya-learning-shell--lesson .sikshya-learnSidebar,
  .sikshya-learning-shell--quiz .sikshya-learnSidebar,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar {
    position: relative;
    top: auto;
    left: auto;
    bottom: auto;
    flex: 0 0 var(--sikshya-learn-sidebar-w-current);
    width: var(--sikshya-learn-sidebar-w-current);
    max-width: var(--sikshya-learn-sidebar-w);
    align-self: stretch;
    height: 100%;
    min-height: 0;
    max-height: 100%;
    overflow: hidden;
    transform: none !important;
    transition: flex-basis 240ms cubic-bezier(0.22, 1, 0.36, 1), width 240ms cubic-bezier(0.22, 1, 0.36, 1);
  }

  /* Course Builder default: entire sidebar column scrolls (previous behaviour). */
  .sikshya-learning-shell--lesson .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]),
  .sikshya-learning-shell--quiz .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]),
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) {
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  /* Collapse class is on `<html>`; shell variant is on `<body>` — use descendants, not a compound selector. */
  .sikshya-sidebarCollapsed .sikshya-learning-shell--lesson .sikshya-learnSidebar,
  .sikshya-sidebarCollapsed .sikshya-learning-shell--quiz .sikshya-learnSidebar,
  .sikshya-sidebarCollapsed .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar {
    flex-basis: 0;
    width: 0;
    max-width: 0;
    overflow: hidden;
    border-right: 0;
    padding: 0;
    box-shadow: none;
    pointer-events: none;
  }
}

.sikshya-sidebarCollapsed .sikshya-learnSidebar {
  transform: translateX(calc(-1 * var(--sikshya-learn-sidebar-w)));
}

@media (min-width: 1024px) {
  /* Collapse class is on `<html>`; shell variant is on `<body>` — use descendants, not a compound selector. */
  .sikshya-sidebarCollapsed .sikshya-learning-shell--lesson .sikshya-learnSidebar,
  .sikshya-sidebarCollapsed .sikshya-learning-shell--quiz .sikshya-learnSidebar,
  .sikshya-sidebarCollapsed .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar {
    transform: none;
  }
}

.sikshya-learnSidebar__inner {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

@media (min-width: 1024px) {
  /* Sidebar scroll OFF: outline + footer flow; outer column scrolls. */
  .sikshya-learning-shell--lesson .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) .sikshya-learnSidebar__inner,
  .sikshya-learning-shell--quiz .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) .sikshya-learnSidebar__inner,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) .sikshya-learnSidebar__inner {
    overflow: visible;
    height: auto;
    max-height: none;
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }

  .sikshya-learning-shell--lesson .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) .sikshya-learnSidebar__scroll,
  .sikshya-learning-shell--quiz .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) .sikshya-learnSidebar__scroll,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar:not([data-sik-curriculum-scroll="1"]) .sikshya-learnSidebar__scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow: visible;
    max-height: none;
  }

  /* Sidebar scroll ON (Course Builder): fixed rail, curriculum list scrolls only. */
  .sikshya-learning-shell--lesson .sikshya-learnSidebar[data-sik-curriculum-scroll="1"] .sikshya-learnSidebar__inner,
  .sikshya-learning-shell--quiz .sikshya-learnSidebar[data-sik-curriculum-scroll="1"] .sikshya-learnSidebar__inner,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar[data-sik-curriculum-scroll="1"] .sikshya-learnSidebar__inner {
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
    height: 100%;
    max-height: 100%;
    display: flex;
    flex-direction: column;
  }

  .sikshya-learning-shell--lesson .sikshya-learnSidebar[data-sik-curriculum-scroll="1"] .sikshya-learnSidebar__scroll,
  .sikshya-learning-shell--quiz .sikshya-learnSidebar[data-sik-curriculum-scroll="1"] .sikshya-learnSidebar__scroll,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar[data-sik-curriculum-scroll="1"] .sikshya-learnSidebar__scroll {
    flex: 1 1 0;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    max-height: none;
    -webkit-overflow-scrolling: touch;
    scrollbar-gutter: stable;
    /* Stop wheel/trackpad scroll from propagating into the right content column. */
    overscroll-behavior: contain;
  }
}

.sikshya-learnSidebar__head {
  height: var(--sikshya-learn-railhead-h);
  padding: 0 var(--sikshya-learn-railhead-pad);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface);
}

.sikshya-learnSidebar__heading {
  margin: 0;
  font-size: var(--sikshya-learn-fs-15);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--sikshya-learn-text);
}

.sikshya-sidebarAction {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--sikshya-learn-muted);
  font-weight: 700;
  font-size: var(--sikshya-learn-fs-12);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--sikshya-learn-radius-10);
}

.sikshya-sidebarAction:hover {
  background: var(--sikshya-learn-surface-2);
  color: var(--sikshya-learn-text);
}

.sikshya-learnSidebar__scroll {
  flex: 1;
  overflow: visible;
  /* Footer widgets (Q&A, etc.) live outside the scroll area. */
  padding: 10px 12px 16px;
}

.sikshya-learnSidebar__scroll:has(.sikshya-curriculumOutline) {
  padding: 0;
}

.sikshya-learnSidebar__scroll::-webkit-scrollbar {
  width: 8px;
}

.sikshya-learnSidebar__scroll::-webkit-scrollbar-thumb {
  background: rgba(15, 23, 42, 0.20);
  border-radius: 4px;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.sikshya-learnSidebar__scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(15, 23, 42, 0.30);
}

.sikshya-learnSidebar__scroll::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.03);
  border-radius: 4px;
}

/* =========================================================
 * Sidebar footer widgets (Pro add-ons hook into
 * `sikshya_learn_sidebar_footer`: Reports, Activity log,
 * Certificates, Coupons, Discussions/Q&A, etc.)
 * =======================================================*/
.sikshya-learnSidebar__inner > .sikshya-sidebarWidget,
.sikshya-learnSidebar__inner > .sikshya-sidebarDisc {
  flex: 0 0 auto;
}

/* Community discussions widgets: sidebar footer (Q&A) uses fixed docking; Discussion lives in-flow under the lesson tab panel. */
.sikshya-sidebarDisc {
  border-top: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface);
  display: flex;
  flex-direction: column;
  min-height: 0;
  font-size: var(--sikshya-learn-fs-13, 13px);
  flex: 0 0 auto;
  max-height: none;
}

.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"] {
  /* Treat Q&A as a true sidebar footer (pinned by flex layout). */
  position: static;
  width: auto;
  z-index: 1;
  margin-top: auto;
}

.sikshya-sidebarDisc--inContent[data-sik-disc-placement="content"] {
  position: static;
  left: auto;
  bottom: auto;
  width: 100%;
  max-width: 100%;
  z-index: auto;
  border-top: none;
  background: transparent;
  flex: 1 1 auto;
  min-height: 280px;
}

.sikshya-sidebarDisc--inContent.sikshya-discMessenger[data-sik-disc-placement="content"] {
  min-height: 0;
}

.sikshya-sidebarDisc--inContent[data-sik-disc-placement="content"] .sikshya-sidebarDisc__composeDock .sikshya-sidebarDisc__compose {
  border-top: 0;
  padding-top: 6px;
}

/* Sidebar dock: hide sheet until Q&A footer tab opens it */
.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"] .sikshya-sidebarDisc__sheet {
  display: none !important;
}

.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"] .sikshya-sidebarDisc__contentArea {
  display: none !important;
}

/* Open sidebar: sheet is flex transcript column (sizes with composer + footer tabs below). */
.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__sheet {
  display: flex !important;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-mode="discussion"] .sikshya-sidebarDisc__contentArea[data-discussion-panel],
.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-mode="qa"] .sikshya-sidebarDisc__contentArea[data-qa-panel] {
  display: flex !important;
}

/* Content tab: Discussion sheet follows [hidden]; when visible, stretch in the panel */
.sikshya-sidebarDisc--inContent[data-sik-disc-placement="content"] .sikshya-sidebarDisc__sheet[hidden] {
  display: none !important;
}

.sikshya-sidebarDisc--inContent[data-sik-disc-placement="content"] .sikshya-sidebarDisc__sheet:not([hidden]) {
  display: flex !important;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
}

.sikshya-sidebarDisc--inContent[data-sik-disc-placement="content"] .sikshya-sidebarDisc__contentArea[data-discussion-panel] {
  display: flex !important;
}

/* Ensure the content areas within the sheet are properly styled */
.sikshya-sidebarDisc__sheet .sikshya-sidebarDisc__contentArea {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.sikshya-sidebarDisc__sheet .sikshya-sidebarDisc__contentArea .sikshya-sidebarDisc__threadScroll {
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: hidden;
  overflow-y: auto;
  min-height: 120px;
}

.sikshya-sidebarDisc__panelHead {
  flex: 0 0 auto;
  padding: 0 2px 10px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--sikshya-learn-border, #e2e8f0);
}

.sikshya-sidebarDisc__panelTitle {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--sikshya-learn-text);
}

.sikshya-sidebarDisc__panelDesc {
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__contentArea {
  flex: 1 1 auto;
  min-height: 0;
  flex-direction: column;
}

/* Only show content areas when explicitly marked as active */
.sikshya-sidebarDisc__contentArea[data-discussion-panel].is-active,
.sikshya-sidebarDisc__contentArea[data-qa-panel].is-active {
  display: flex;
}

/* Discussion + Q&A compose chrome (dock / legacy markup) */
.sikshya-sidebarDisc__compose--discussion,
.sikshya-sidebarDisc__compose--qa {
  border-top: 1px solid var(--sikshya-learn-border);
  padding: 12px 0 0;
}

.sikshya-sidebarDisc__composeHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.sikshya-sidebarDisc__composeLabel {
  font-weight: 600;
  color: var(--sikshya-learn-text);
  font-size: 14px;
}

.sikshya-sidebarDisc__composeType {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--sikshya-learn-primary, #2563eb);
  color: white;
  font-weight: 500;
}

.sikshya-sidebarDisc__post--discussion,
.sikshya-sidebarDisc__post--qa {
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-weight: 500;
}

.sikshya-sidebarDisc__post--discussion {
  background: var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__post--qa {
  background: var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__post--discussion:hover,
.sikshya-sidebarDisc__post--qa:hover {
  opacity: 0.9;
}

.sikshya-sidebarDisc__post--discussion:disabled,
.sikshya-sidebarDisc__post--qa:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sikshya-sidebarDisc__sheet[data-discussion-panel].is-active,
.sikshya-sidebarDisc__sheet[data-qa-panel].is-active {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 12px 12px;
  min-height: 0;
  flex: 1 1 auto;
}

/* Sheet visibility is driven by the [hidden] attribute and the data-state
 * attribute on the section, not by a class — keeps SSR + JS in sync. */
.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-open="false"] .sikshya-sidebarDisc__sheet {
  display: none;
}

/* Open state: sidebar column = sheet (scroll) | composer dock | footer tabs */
.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sikshya-learn-sidebar-w-current);
  z-index: 25;
  background: var(--sikshya-learn-surface);
  display: flex;
  flex-direction: column;
}

/* No need to lock sidebar scrolling since we're expanding upward from footer */

.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__composeDock {
  flex: 0 0 auto;
}

.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__tabsSection {
  border-top: 1px solid var(--sikshya-learn-border);
  flex: 0 0 auto;
}

/* Let the thread list grow to fill the available space in the sidebar sheet */
.sikshya-sidebarDisc[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__threadScroll {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  overflow-x: hidden;
  overflow-y: auto;
}

/* Sidebar Discussion / Q&A footer: same chrome as lesson player (.sikshya-tabsBar + .sikshya-tabBtn) */

.sikshya-sidebarDisc__tabsSection.sikshya-tabsSection {
  margin-top: 0;
  flex: 0 0 auto;
}

.sikshya-sidebarDisc .sikshya-sidebarDisc__tabsBar.sikshya-tabsBar {
  margin-bottom: 0;
  flex-wrap: nowrap;
  gap: 0;
  border-bottom-color: transparent;
  background: var(--sikshya-learn-surface-2, rgba(15, 23, 42, 0.03));
  /* Align footer strip with Prev/Next rail in main column */
  min-height: var(--sikshya-learn-content-nav-h);
  position: relative;
  z-index: 1;
  overflow: visible;
}

.sikshya-sidebarDisc .sikshya-sidebarDisc__tabsBar .sikshya-tabBtn {
  flex: 1 1 50%;
  margin-bottom: 0;
  border-radius: 0;
  text-align: center;
  justify-content: center;
  font-size: var(--sikshya-learn-fs-12, 12px);
}

/*
 * Discussion + Q&A unread counts — Messenger / Facebook-style red badge (pill + halo).
 * Applies to sidebar Q&A footer tab and main “Discussion” content tab (same primitives).
 */
.sikshya-tabBtn--withUnreadBadge {
  position: relative;
  overflow: visible;
  isolation: isolate;
  padding-right: 28px;
}

.sikshya-tabBtn--withUnreadBadge .sikshya-tabBtn__label {
  display: inline-block;
}

/* Slight emphasis when tab has unread and is not focused — draws the eye without noise */
.sikshya-tabBtn--withUnreadBadge.sikshya-tabBtn--hasUnread:not(.is-active) {
  color: var(--sikshya-learn-text);
}

.sikshya-unreadBadge {
  --sikshya-cd-unread: #fa383e;
  --sikshya-cd-unread-ring: var(--sikshya-learn-surface, #fff);
  position: absolute;
  top: 2px;
  right: 4px;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--sikshya-cd-unread);
  background: radial-gradient(circle at 30% 25%, #ff8186 0%, var(--sikshya-cd-unread) 62%);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 22px;
  letter-spacing: -0.02em;
  text-align: center;
  box-sizing: border-box;
  border: 2px solid var(--sikshya-cd-unread-ring);
  box-shadow:
    0 0 0 1px rgba(250, 56, 62, 0.35),
    0 2px 6px rgba(0, 0, 0, 0.12),
    0 4px 12px rgba(250, 56, 62, 0.4);
  pointer-events: none;
  z-index: 3;
  animation: sikshya-cd-unread-glow 2.4s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .sikshya-unreadBadge {
    animation: none;
  }
}

@keyframes sikshya-cd-unread-glow {
  0%,
  100% {
    box-shadow:
      0 0 0 1px rgba(250, 56, 62, 0.35),
      0 2px 6px rgba(0, 0, 0, 0.12),
      0 4px 12px rgba(250, 56, 62, 0.38);
    transform: scale(1);
  }
  50% {
    box-shadow:
      0 0 0 1px rgba(250, 56, 62, 0.5),
      0 2px 8px rgba(0, 0, 0, 0.14),
      0 5px 16px rgba(250, 56, 62, 0.52);
    transform: scale(1.03);
  }
}

/*
 * Main column tab strip: stay above scrolled lesson body AND above the sticky lesson
 * rail header (.sikshya-contentPanel--header, z-index 44); otherwise taps hit the rail
 * and tabs feel dead (often noticed after taller panels like Announcements).
 */
.sikshya-learning-shell--lesson .sikshya-learnContent > .sikshya-tabsSection .sikshya-tabsBar,
.sikshya-learning-shell--quiz .sikshya-learnContent > .sikshya-tabsSection .sikshya-tabsBar {
  position: sticky;
  top: var(--sikshya-learn-railhead-h);
  overflow: visible;
  background-color: var(--sikshya-learn-surface);
  margin-bottom: 0;
  border-bottom-color: var(--sikshya-learn-border);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

@media (max-width: 1023px) {

  /* Match sticky lesson header offset (rail sits under compact top bar on small viewports). */
  .sikshya-learning-shell--lesson .sikshya-learnContent > .sikshya-tabsSection .sikshya-tabsBar,
  .sikshya-learning-shell--quiz .sikshya-learnContent > .sikshya-tabsSection .sikshya-tabsBar {
    top: calc(var(--sikshya-learn-top-offset) + (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible)) + var(--sikshya-learn-railhead-h));
  }
}

/* Sidebar / compact discussion tabs reuse .sikshya-tabsBar but are not direct children — keep unobtrusive layering */
.sikshya-learnContent .sikshya-tabsSection .sikshya-tabsBar {
  overflow: visible;
}

.sikshya-learnContent .sikshya-tabsSection .sikshya-tabBtn--withUnreadBadge {
  overflow: visible;
}

@media (max-width: 1023px) {
  .sikshya-sidebarDisc[data-sik-disc-placement="sidebar"] {
    width: 100%;
    left: 0;
  }
}

.sikshya-sidebarDisc__sheet {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 12px 8px;
  min-height: 0;
  flex: 1 1 auto;
}

/* Honor the [hidden] attribute even though we set display:flex above. */
.sikshya-sidebarDisc__sheet[hidden] {
  display: none;
}

/* Compact composer bar directly above Discussion / Q&A tabs */
.sikshya-sidebarDisc__composeDock {
  flex: 0 0 auto;
  background: var(--sikshya-learn-surface-2, rgba(15, 23, 42, 0.025));
  border-top: 1px solid var(--sikshya-learn-border);
  padding: 10px 12px 8px;
}

.sikshya-sidebarDisc__composeDock[hidden] {
  display: none !important;
}

.sikshya-sidebarDisc__composeSlot[hidden] {
  display: none !important;
}

.sikshya-sidebarDisc__composeSlot:not([hidden]) {
  display: block;
}

.sikshya-sidebarDisc__composeDock .sikshya-sidebarDisc__compose {
  border-top: 0;
  padding-top: 0;
  gap: 8px;
}

.sikshya-sidebarDisc__composeDock .sikshya-sidebarDisc__textarea {
  min-height: 72px;
}

.sikshya-sidebarDisc__composeDock .sikshya-sidebarDisc__composeFoot {
  margin-top: 2px;
}

.sikshya-sidebarDisc__threadScroll {
  flex: 1 1 auto;
  min-height: 120px;
  max-height: 32vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-right: 4px;
}

@media (min-width: 1024px) {
  .sikshya-learning-shell--lesson .sikshya-sidebarDisc__threadScroll,
  .sikshya-learning-shell--quiz .sikshya-sidebarDisc__threadScroll {
    max-height: none;
  }
}

.sikshya-sidebarDisc__threadScroll::-webkit-scrollbar {
  width: 6px;
}

.sikshya-sidebarDisc__threadScroll::-webkit-scrollbar-thumb {
  background: rgba(15, 23, 42, 0.12);
  border-radius: 999px;
}

/* ------------------------------------------------------------------
 * Messenger-style Discussion / Q&A — one scroll viewport, sticky composer
 * ------------------------------------------------------------------*/

.sikshya-discMessenger__srOnly {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.sikshya-discMessenger[data-sik-disc-placement="content"] {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.sikshya-learning-shell--lesson .sikshya-tabPanel[data-sikshya-panel="discussion"].is-active,
.sikshya-learning-shell--quiz .sikshya-tabPanel[data-sikshya-panel="discussion"].is-active {
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  min-height: min(560px, calc(100dvh - 168px));
  max-height: min(620px, calc(100dvh - 140px));
  height: min(560px, calc(100dvh - 152px));
  overflow: hidden;
}

.sikshya-learning-shell--lesson .sikshya-tabPanel[data-sikshya-panel="discussion"].is-active .sikshya-contentPanel--plain,
.sikshya-learning-shell--quiz .sikshya-tabPanel[data-sikshya-panel="discussion"].is-active .sikshya-contentPanel--plain {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-top: 8px;
}

.sikshya-discMessenger[data-sik-disc-placement="content"] > .sikshya-discMessenger__sheet:not([hidden]) {
  gap: 0;
  flex: 1 1 auto;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  border-radius: var(--sikshya-learn-radius-12);
  border: 1px solid rgba(15, 23, 42, 0.06);
  background: var(--sikshya-learn-surface);
  box-shadow: var(--sikshya-learn-shadow-panel);
}

.sikshya-discMessenger[data-sik-disc-placement="content"] > .sikshya-discMessenger__composeDock:not([hidden]) {
  flex: 0 0 auto;
  margin-top: 10px;
  padding: 10px 4px 2px;
  border-top: none;
  background: transparent;
}

.sikshya-discMessenger__head.sikshya-sidebarDisc__panelHead {
  padding: 10px 12px;
  margin: 0;
  flex: 0 0 auto;
  border-bottom-color: rgba(15, 23, 42, 0.07);
}

.sikshya-discMessenger__title.sikshya-sidebarDisc__panelTitle {
  margin: 0;
  font-size: var(--sikshya-learn-fs-16);
  flex: 1 1 auto;
  min-width: 0;
}

.sikshya-discMessenger__subtitle {
  margin: 6px 0 0;
  font-size: var(--sikshya-learn-fs-12);
  line-height: 1.4;
  color: var(--sikshya-learn-muted);
  display: -webkit-box;
  line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Transcript fills space between toolbar and composer — only this region scrolls */
.sikshya-discMessenger__threadViewport.sikshya-sidebarDisc__threadScroll {
  gap: 0;
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: rgba(100, 116, 139, 0.45) transparent;
  padding-top: 4px;
  padding-bottom: 8px;
  padding-right: 6px;
  padding-inline: 10px;
  background:
    radial-gradient(115% 70% at 12% -6%, rgba(37, 99, 235, 0.07), transparent 55%),
    linear-gradient(180deg, var(--sikshya-learn-surface) 0%, #f3f6fd 42%, #eff2f9 100%);
}

.sikshya-discMessenger:not(.sikshya-discMessenger--qa) .sikshya-sidebarDisc__chatBubble--discussion,
.sikshya-discMessenger.sikshya-discMessenger--qa .sikshya-sidebarDisc__chatBubble--qa {
  border-left-width: 0;
  border-radius: 17px;
  border: 1px solid rgba(15, 23, 42, 0.05);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.sikshya-discMessenger[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__contentArea[data-qa-panel] {
  min-height: 0;
}

.sikshya-discMessenger[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__threadScroll.sikshya-discMessenger__threadViewport {
  padding-inline: 8px;
}

.sikshya-discMessenger[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-discMessenger__composeDock:not([hidden]) {
  padding: 10px 12px;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  background: rgba(248, 250, 252, 0.98);
}

.sikshya-discMessenger form.sikshya-discMessenger__composeForm.sikshya-sidebarDisc__compose {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sikshya-discMessenger__composerWrap {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 6px;
  margin: 0;
  border-radius: 22px;
  background: rgba(15, 23, 42, 0.03);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.sikshya-discMessenger__composerWrap:focus-within {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.sikshya-discMessenger__composerMeta {
  padding: 2px 4px 0;
  min-height: 1rem;
}

.sikshya-discMessenger__metaHint {
  font-size: 11px;
  line-height: 1.35;
  color: var(--sikshya-learn-muted);
}

.sikshya-discMessenger__composerInput.sikshya-sidebarDisc__textarea {
  flex: 1 1 auto;
  min-width: 0;
  resize: none;
  overflow-y: auto;
  min-height: 44px;
  max-height: 120px;
  margin: 0;
  padding: 10px 12px;
  border-radius: 18px;
  border: none;
  background: var(--sikshya-learn-surface);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.sikshya-discMessenger__composerInput.sikshya-sidebarDisc__textarea:focus {
  outline: 0;
  box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.sikshya-discMessenger__composeDock .sikshya-sidebarDisc__textarea.sikshya-discMessenger__composerInput {
  min-height: 44px;
}

.sikshya-discMessenger__send.sikshya-sidebarDisc__post,
.sikshya-discMessenger__send--qa.sikshya-sidebarDisc__post--qa {
  flex: 0 0 auto;
  align-self: center;
  padding: 0 16px;
  min-height: 40px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
  background: var(--sikshya-learn-primary);
  box-shadow: 0 1px 4px rgba(37, 99, 235, 0.28);
}

.sikshya-discMessenger__send.sikshya-sidebarDisc__post:hover:not(:disabled),
.sikshya-discMessenger__send--qa.sikshya-sidebarDisc__post--qa:hover:not(:disabled) {
  filter: brightness(1.03);
}

.sikshya-discMessenger__headRow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.sikshya-discMessenger__headActions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  margin-inline-start: auto;
}

.sikshya-discMessenger__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--sikshya-learn-muted, #64748b);
  cursor: pointer;
  flex-shrink: 0;
}

.sikshya-discMessenger__close:hover {
  background: rgba(15, 23, 42, 0.06);
  color: var(--sikshya-learn-text);
}

.sikshya-discMessenger__close:focus-visible {
  outline: 2px solid var(--sikshya-learn-primary, #2563eb);
  outline-offset: 2px;
}

.sikshya-discMessenger__closeIcon {
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
}

.sikshya-discMessenger__scopePill {
  flex: 0 0 auto;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--sikshya-learn-primary);
  background: var(--sikshya-learn-accent-wash);
  border: 1px solid rgba(37, 99, 235, 0.14);
}

.sikshya-discMessenger--qa[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] {
  top: 0;
  bottom: auto;
  height: calc(100dvh - var(--sikshya-learn-top-offset) - (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible)));
  max-height: none;
  box-shadow: none;
  border-radius: 0;
}

.sikshya-discMessenger--qa[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] > .sikshya-sidebarDisc__sheet.sikshya-discMessenger__sheet {
  gap: 0;
  flex: 1 1 auto;
  padding: 0;
  margin: 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  border-radius: 0;
  border: none;
  background: var(--sikshya-learn-surface);
  box-shadow: none;
  overflow: hidden;
}

.sikshya-discMessenger--qa[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"]
  .sikshya-sidebarDisc__panelHead.sikshya-discMessenger__head {
  padding: 12px 12px 10px;
  margin: 0;
  border-bottom: 1px solid var(--sikshya-learn-border, rgba(15, 23, 42, 0.08));
  background: var(--sikshya-learn-surface);
}

.sikshya-discMessenger--qa[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"]
  > .sikshya-sidebarDisc__composeDock.sikshya-discMessenger__composeDock:not([hidden]) {
  padding: 10px 12px;
  margin: 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  border: none;
  border-radius: 0;
  border-top: 1px solid var(--sikshya-learn-border, rgba(15, 23, 42, 0.08));
  background: var(--sikshya-learn-surface-2, rgba(248, 250, 252, 0.95));
}

.sikshya-discMessenger--qa[data-sik-disc-placement="sidebar"][data-sik-disc-open="true"] .sikshya-sidebarDisc__tabsSection {
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  background: transparent;
}

.sikshya-discMessenger--qa[data-sik-disc-placement="sidebar"][data-sik-disc-open="false"] > .sikshya-sidebarDisc__tabsSection {
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  background: transparent;
}

@media (max-width: 479px) {
  .sikshya-learning-shell--lesson .sikshya-tabPanel[data-sikshya-panel="discussion"].is-active,
  .sikshya-learning-shell--quiz .sikshya-tabPanel[data-sikshya-panel="discussion"].is-active {
    min-height: min(420px, calc(100dvh - 120px));
    max-height: min(520px, calc(100dvh - 100px));
    height: min(440px, calc(100dvh - 116px));
  }

  .sikshya-discMessenger__composerWrap {
    gap: 6px;
  }

  .sikshya-discMessenger__send.sikshya-sidebarDisc__post {
    padding: 0 12px;
  }
}

.sikshya-sidebarDisc__empty {
  margin: 0;
  padding: 12px 10px;
  text-align: center;
  color: var(--sikshya-learn-muted, #64748b);
  font-size: 12px;
  line-height: 1.45;
  background: var(--sikshya-learn-surface-2, #f8fafc);
  border-radius: 8px;
}

.sikshya-sidebarDisc__lock {
  margin: 0;
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.4;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-radius: 8px;
}

/* --- Discussion / Q&A: chat-thread transcript -------------------------------- */
.sikshya-sidebarDisc__thread {
  display: block;
  margin: 0 0 14px;
  padding: 0;
}

.sikshya-sidebarDisc__thread:last-child {
  margin-bottom: 6px;
}

.sikshya-sidebarDisc__chatRow {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  min-width: 0;
}

.sikshya-sidebarDisc__avatar {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: #fff;
  background: linear-gradient(135deg, var(--sikshya-learn-primary, #2563eb) 0%, #6366f1 100%);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
  user-select: none;
}

.sikshya-sidebarDisc__chatCol {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sikshya-sidebarDisc__chatBubble {
  position: relative;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 12px 12px 12px 6px;
  padding: 10px 12px;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04), 0 8px 20px rgba(15, 23, 42, 0.04);
}

.sikshya-sidebarDisc__chatBubble--discussion {
  border-left: 3px solid var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__chatBubble--qa {
  border-left: 3px solid rgba(37, 99, 235, 0.35);
}

.sikshya-sidebarDisc__chatHead {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin-bottom: 8px;
}

.sikshya-sidebarDisc__chatTime {
  margin-left: auto;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  color: var(--sikshya-learn-muted, #64748b);
  background: rgba(15, 23, 42, 0.05);
  white-space: nowrap;
}

/* Thread rail + stacked replies */
.sikshya-sidebarDisc__threadRail {
  display: flex;
  align-items: stretch;
  gap: 10px;
  padding-left: 4px;
  margin-top: 2px;
}

.sikshya-sidebarDisc__railLine {
  flex: 0 0 2px;
  width: 2px;
  align-self: stretch;
  margin-top: 4px;
  margin-bottom: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(148, 163, 184, 0.6) 0%, rgba(148, 163, 184, 0.12) 100%);
}

.sikshya-sidebarDisc__repliesCol {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sikshya-sidebarDisc__repliesLabel {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--sikshya-learn-muted, #94a3b8);
}

.sikshya-sidebarDisc__replyRow {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.sikshya-sidebarDisc__replyRow--instr {
  background: rgba(37, 99, 235, 0.04);
  border-color: rgba(37, 99, 235, 0.12);
}

.sikshya-sidebarDisc__replyRow.is-pending {
  opacity: 0.88;
  border-style: dashed;
}

.sikshya-sidebarDisc__replyAvatar {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  font-size: 9px;
  font-weight: 800;
  display: grid;
  place-items: center;
  background: rgba(15, 23, 42, 0.08);
  color: var(--sikshya-learn-text);
  user-select: none;
}

.sikshya-sidebarDisc__replyRow--instr .sikshya-sidebarDisc__replyAvatar {
  background: var(--sikshya-learn-primary, #2563eb);
  color: #fff;
}

.sikshya-sidebarDisc__replyBody {
  flex: 1 1 auto;
  min-width: 0;
}

.sikshya-sidebarDisc__replyTop {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px;
  margin-bottom: 4px;
}

.sikshya-sidebarDisc__replyName {
  font-size: 11px;
  font-weight: 800;
  color: var(--sikshya-learn-text);
}

.sikshya-sidebarDisc__replyTime {
  font-size: 10px;
  font-weight: 700;
  color: var(--sikshya-learn-muted, #94a3b8);
}

.sikshya-sidebarDisc__replyMsg {
  font-size: 12px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--sikshya-learn-text);
}

/* Footer: edit hint + actions */
.sikshya-sidebarDisc__bubbleFoot {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(15, 23, 42, 0.05);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sikshya-sidebarDisc__editHintWrap {
  min-height: 0;
}

.sikshya-sidebarDisc__editHint {
  font-size: 10px;
  font-weight: 700;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__modBar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.sikshya-sidebarDisc__bubbleActions {
  margin: 0;
  display: flex;
  align-items: center;
}

.sikshya-sidebarDisc__bubbleActions-inner {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sikshya-sidebarDisc__bubbleBtn {
  appearance: none;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: rgba(255, 255, 255, 0.95);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--sikshya-learn-text);
  transition: background 0.12s ease, border-color 0.12s ease;
}

.sikshya-sidebarDisc__bubbleBtn:hover {
  background: rgba(15, 23, 42, 0.03);
}

.sikshya-sidebarDisc__bubbleBtn--muted {
  border-color: transparent;
  background: transparent;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__bubbleBtn--muted:hover {
  background: rgba(15, 23, 42, 0.05);
  color: var(--sikshya-learn-text);
}

.sikshya-sidebarDisc__bubbleBtn--danger {
  color: #b91c1c;
}

.sikshya-sidebarDisc__bubbleBtn--danger:hover {
  background: rgba(239, 68, 68, 0.08);
}

/* Instructor reply composer — full-width field + send (readable on narrow sidebar) */
.sikshya-sidebarDisc__replyStrip {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 10px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.02);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.sikshya-sidebarDisc__replyStrip .sikshya-sidebarDisc__replyTa {
  flex: 1 1 auto;
  width: 100%;
  min-width: 0;
  min-height: 52px;
  margin: 0;
  padding: 8px 10px;
  font: inherit;
  font-size: 13px;
  line-height: 1.45;
  border: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface);
  border-radius: 10px;
  box-sizing: border-box;
  resize: vertical;
}

.sikshya-sidebarDisc__replyStrip .sikshya-sidebarDisc__replyTa:focus {
  outline: 2px solid rgba(37, 99, 235, 0.25);
  outline-offset: 0;
}

.sikshya-sidebarDisc__replySend {
  flex: 0 0 auto;
  align-self: flex-end;
  appearance: none;
  border: 0;
  background: var(--sikshya-learn-primary, #2563eb);
  color: #fff;
  font-weight: 800;
  font-size: 11px;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}

.sikshya-sidebarDisc__replySend:hover {
  filter: brightness(0.95);
}

/* Legacy bubble shells (still referenced for older markup in edge cases). */
.sikshya-sidebarDisc__bubble {
  background: #fff;
  border: 1px solid var(--sikshya-learn-border, #e2e8f0);
  border-radius: 10px;
  padding: 10px 10px 8px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  border-left: 3px solid var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__bubble--qa {
  border-left-color: var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__bubble--discussion {
  border-left-color: var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__bubble--qa .sikshya-sidebarDisc__tag,
.sikshya-sidebarDisc__chatBubble--qa .sikshya-sidebarDisc__tag {
  color: var(--sikshya-learn-primary);
  background: rgba(37, 99, 235, 0.1);
}

.sikshya-sidebarDisc__chatBubble--discussion .sikshya-sidebarDisc__tag {
  color: var(--sikshya-learn-primary, #2563eb);
  background: rgba(37, 99, 235, 0.1);
}

.sikshya-sidebarDisc__bubbleMeta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  margin-bottom: 8px;
}

.sikshya-sidebarDisc__time {
  margin-left: auto;
  font-size: 10px;
  font-weight: 600;
  color: var(--sikshya-learn-muted, #64748b);
  white-space: nowrap;
}

.sikshya-sidebarDisc__author {
  font-size: 12px;
  color: var(--sikshya-learn-text);
}

.sikshya-sidebarDisc__tag {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sikshya-learn-primary, #2563eb);
  background: rgba(37, 99, 235, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.sikshya-sidebarDisc__pending {
  font-size: 10px;
  font-weight: 700;
  color: #b45309;
}

.sikshya-sidebarDisc__bubbleBody {
  font-size: 13px;
  line-height: 1.45;
  color: var(--sikshya-learn-text);
  white-space: pre-wrap;
  word-break: break-word;
}

.sikshya-sidebarDisc__editPanel {
  display: grid;
  gap: 8px;
  margin-top: 2px;
}

.sikshya-sidebarDisc__editPanel[hidden] {
  display: none !important;
}

.sikshya-sidebarDisc__editTa {
  width: 100%;
  font: inherit;
  font-size: 13px;
  line-height: 1.45;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--sikshya-learn-border, #e2e8f0);
  resize: vertical;
  min-height: 64px;
  box-sizing: border-box;
  color: var(--sikshya-learn-text);
  background: #fff;
}

.sikshya-sidebarDisc__editBar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.sikshya-sidebarDisc__editSave {
  background: var(--sikshya-learn-primary, #2563eb) !important;
  color: #fff !important;
  border-color: transparent !important;
}

.sikshya-sidebarDisc__editSave:hover {
  filter: brightness(0.95);
}

.sikshya-sidebarDisc__editCancel:hover {
  background: var(--sikshya-learn-surface-2, #f8fafc);
}

.sikshya-sidebarDisc__repliesHead {
  margin: 10px 0 6px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__replies {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sikshya-sidebarDisc__reply {
  padding: 8px 10px;
  background: var(--sikshya-learn-surface-2, #f8fafc);
  border-radius: 8px;
  border-left: 3px solid var(--sikshya-learn-primary, #2563eb);
}

.sikshya-sidebarDisc__reply.is-pending {
  border-left-color: rgba(100, 116, 139, 0.55);
  opacity: 0.95;
}

.sikshya-sidebarDisc__replyMeta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 4px;
}

.sikshya-sidebarDisc__replyAuthor {
  font-size: 11px;
  font-weight: 800;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__replyText {
  font-size: 12px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.sikshya-sidebarDisc__bubble .sikshya-sidebarDisc__bubbleActions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.sikshya-sidebarDisc__miniBtn {
  appearance: none;
  border: 1px solid var(--sikshya-learn-border, #e2e8f0);
  background: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--sikshya-learn-text);
}

.sikshya-sidebarDisc__miniBtn:hover {
  background: var(--sikshya-learn-surface-2, #f8fafc);
}

.sikshya-sidebarDisc__replyBox {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.sikshya-sidebarDisc__replyLabel {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__replyTa {
  width: 100%;
  font: inherit;
  font-size: 12px;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--sikshya-learn-border, #e2e8f0);
  resize: vertical;
  min-height: 52px;
  box-sizing: border-box;
}

.sikshya-sidebarDisc__replyBtn {
  appearance: none;
  justify-self: start;
  border: 0;
  background: var(--sikshya-learn-primary, #2563eb);
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
}

.sikshya-sidebarDisc__compose {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
  border-top: 1px solid var(--sikshya-learn-border);
  margin: 0;
}

.sikshya-sidebarDisc__composeLabel {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sikshya-learn-muted, #64748b);
}

.sikshya-sidebarDisc__textarea {
  width: 100%;
  font: inherit;
  border: 1px solid var(--sikshya-learn-border, #e2e8f0);
  border-radius: 8px;
  padding: 10px 10px;
  background: #fff;
  color: var(--sikshya-learn-text);
  box-sizing: border-box;
  min-height: 88px;
  resize: vertical;
  line-height: 1.45;
  font-size: 13px;
}

.sikshya-sidebarDisc__textarea:disabled {
  background: #f1f5f9;
  color: var(--sikshya-learn-muted, #64748b);
  cursor: not-allowed;
}

.sikshya-sidebarDisc__composeFoot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.sikshya-sidebarDisc__hint {
  font-size: 11px;
  color: var(--sikshya-learn-muted, #64748b);
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  line-height: 1.4;
}

.sikshya-sidebarDisc__composeNote {
  display: block;
  margin: 0;
  padding: 6px 8px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--sikshya-learn-muted, #475569);
  background: rgba(15, 23, 42, 0.04);
  border-radius: 6px;
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.sikshya-sidebarDisc__post {
  appearance: none;
  border: 0;
  background: var(--sikshya-learn-primary, #2563eb);
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  padding: 8px 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease;
  flex: 0 0 auto;
}

.sikshya-sidebarDisc__post:hover:not(:disabled) {
  background: var(--sikshya-learn-primary-hover, #1d4ed8);
}

.sikshya-sidebarDisc__post:focus-visible {
  outline: 2px solid var(--sikshya-learn-primary, #2563eb);
  outline-offset: 2px;
}

.sikshya-sidebarDisc__post:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.sikshya-sidebarDisc__status {
  display: block;
  font-size: 11px;
  color: var(--sikshya-learn-muted, #64748b);
  min-height: 1.2em;
}

.sikshya-learnOverlay {
  position: fixed;
  top: calc(var(--sikshya-learn-top-offset) + (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible)));
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 39;
}

@media (max-width: 1023px) {
  .sikshya-learnSidebar {
    width: min(var(--sikshya-learn-sidebar-w), 92vw);
    transform: translateX(-105%);
    transition: transform 0.22s ease;
  }
  .sikshya-outlineOpen .sikshya-learnSidebar {
    transform: translateX(0);
  }

  /*
   * Long curricula: scroll outline inside the drawer.
   * `sikshya-outlineOpen` is toggled on `<html>` (`document.documentElement`); shell `--lesson|--quiz|--learn`
   * lives on `<body>`. A compound `.outlineOpen.shell--lesson` never matched, so scrolling never activated.
   */
  .sikshya-outlineOpen .sikshya-learning-shell--lesson .sikshya-learnSidebar .sikshya-learnSidebar__inner,
  .sikshya-outlineOpen .sikshya-learning-shell--quiz .sikshya-learnSidebar .sikshya-learnSidebar__inner,
  .sikshya-outlineOpen .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar .sikshya-learnSidebar__inner {
    /* basis 0 so this column shrinks inside the fixed drawer; auto basis lets content dictate height and disables scrolling */
    flex: 1 1 0;
    min-height: 0;
    max-height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }

  .sikshya-outlineOpen .sikshya-learning-shell--lesson .sikshya-learnSidebar .sikshya-learnSidebar__scroll,
  .sikshya-outlineOpen .sikshya-learning-shell--quiz .sikshya-learnSidebar .sikshya-learnSidebar__scroll,
  .sikshya-outlineOpen .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnSidebar .sikshya-learnSidebar__scroll {
    flex: 1 1 0;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    touch-action: pan-y;
  }
}

@media (min-width: 1024px) {
  .sikshya-learnOverlay {
    display: none !important;
  }

  .sikshya-learnSidebar {
    transform: translateX(0);
  }
}

/* =========================================================
 * Main content column (right of curriculum sidebar)
 * =======================================================*/
/* Right column: main learning area + scoped bottom navigation (lesson/quiz) */
.sikshya-learnContentCol {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  max-width: none;
  width: 100%;
}

@media (min-width: 1024px) {
  .sikshya-learning-shell--lesson .sikshya-learnContentCol,
  .sikshya-learning-shell--quiz .sikshya-learnContentCol,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnContentCol {
    min-height: 0;
    overflow: hidden;
    border-left: 1px solid var(--sikshya-learn-border);
    background: var(--sikshya-learn-bg);
    box-shadow: inset 1px 0 0 rgba(15, 23, 42, 0.03);
  }
}

.sikshya-learnContent {
  min-width: 0;
  padding: 0 22px calc(var(--sikshya-learn-content-nav-h) + 24px);
  padding-right: max(22px, env(safe-area-inset-right));
  padding-left: max(22px, env(safe-area-inset-left));
  max-width: none;
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
}

/* Legacy: main column direct under .sikshya-learnMain — pad for fixed sidebar width (unused when .sikshya-learnContentCol wraps content) */
.sikshya-learnMain > .sikshya-learnContent {
  padding-left: calc(var(--sikshya-learn-sidebar-w-current) + max(22px, env(safe-area-inset-left)));
  transition: padding-left 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

@media (max-width: 1023px) {
  .sikshya-learnMain > .sikshya-learnContent {
    padding-left: max(16px, env(safe-area-inset-left));
  }
}

@media (min-width: 1024px) {
  .sikshya-learning-shell--lesson .sikshya-learnContentCol > .sikshya-learnContent,
  .sikshya-learning-shell--quiz .sikshya-learnContentCol > .sikshya-learnContent,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnContentCol > .sikshya-learnContent {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 1023px) {
  .sikshya-learnContent {
    padding: 0 16px 20px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .sikshya-learning-shell--lesson .sikshya-learnContentCol > .sikshya-learnContent,
  .sikshya-learning-shell--quiz .sikshya-learnContentCol > .sikshya-learnContent,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnContentCol > .sikshya-learnContent {
    overflow: visible;
  }
}

/* Lesson, quiz, and in-course learn home: comfortable reading measure (professional courseware rhythm) */
.sikshya-learning-shell--lesson .sikshya-learnContent > .sikshya-contentSection,
.sikshya-learning-shell--lesson .sikshya-learnContent > .sikshya-tabsSection,
.sikshya-learning-shell--quiz .sikshya-learnContent > .sikshya-contentSection,
.sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnContent > .sikshya-contentSection {
  width: 100%;
  margin-inline: auto;
}

.sikshya-learning-shell--lesson .sikshya-learnContent > .sikshya-contentSection--centered,
.sikshya-learning-shell--quiz .sikshya-learnContent > .sikshya-contentSection--centered {
  max-width: min(40rem, 100%);
}

/* Prev / Next — fixed position footer for proper navigation */
.sikshya-learnContentNav {
  position: fixed;
  bottom: 0;
  left: var(--sikshya-learn-sidebar-w-current);
  right: 0;
  z-index: 30;
  min-height: var(--sikshya-learn-content-nav-h);
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  gap: 12px;
  padding: 10px max(22px, env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom, 0px)) max(22px, env(safe-area-inset-left));
  background: color-mix(in srgb, var(--sikshya-learn-surface) 88%, transparent);
  backdrop-filter: saturate(1.15) blur(12px);
  -webkit-backdrop-filter: saturate(1.15) blur(12px);
  border-top: 1px solid var(--sikshya-learn-border);
  box-shadow: 0 -2px 8px rgba(15, 23, 42, 0.08);
}

.sikshya-learnContentNav__side {
  flex: 0 1 min(44%, 520px);
  display: flex;
  align-items: center;
  align-self: stretch;
  min-width: 0;
}

.sikshya-learnContentNav__side--prev {
  justify-content: flex-start;
}

.sikshya-learnContentNav__side--next {
  justify-content: flex-end;
}

.sikshya-learnContentNav__center {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: stretch;
  justify-content: center;
  align-self: stretch;
}

/* Pro add-ons: keep controls natural height; spacer fills the bar instead */
.sikshya-learnContentNav__center > *:not(.sikshya-learnContentNav__spacer) {
  align-self: center;
}

/* Non-interactive reserve when Pro Discussion/Q&A center control is absent */
.sikshya-learnContentNav__spacer {
  display: block;
  width: min(40%, 300px);
  max-width: 100%;
  align-self: stretch;
  min-height: calc(var(--sikshya-learn-content-nav-h) - 24px);
  border-radius: var(--sikshya-learn-radius-12);
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.06);
  pointer-events: none;
  flex: 0 0 auto;
}

@media (max-width: 1023px) {
  .sikshya-learnContentNav {
    left: 0;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
}

.sikshya-learnDock__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  max-width: min(44%, 520px);
  padding: 10px 12px;
  border-radius: var(--sikshya-learn-radius-12);
  text-decoration: none;
  color: var(--sikshya-learn-text);
  background: transparent;
  border: 1px solid transparent;
}

.sikshya-learnDock__btn:hover {
  background: var(--sikshya-learn-hover);
  border-color: rgba(15, 23, 42, 0.08);
}

.sikshya-learnDock__btn:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: 2px;
}

.sikshya-learnDock__btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.sikshya-learnDock__icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--sikshya-learn-muted);
}

.sikshya-learnDock__meta {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.sikshya-learnDock__kicker {
  font-size: var(--sikshya-learn-fs-11);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sikshya-learn-muted);
  line-height: 1.2;
}

.sikshya-learnDock__title {
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 650;
  color: var(--sikshya-learn-text);
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sikshya-learnDock__btn--next {
  margin-left: auto;
  text-align: right;
  justify-content: flex-end;
}

.sikshya-learnDock__btn--next .sikshya-learnDock__meta {
  text-align: right;
}

/* Learn hub ( /learn/ ) */
.sikshya-learnHubGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.sikshya-learnHubSection {
  margin-top: 22px;
}

.sikshya-learnHubSection__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sikshya-learnHubSection__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-18);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.sikshya-learnHubCard {
  background: var(--sikshya-learn-surface);
  border: 1px solid var(--sikshya-learn-border);
  border-radius: var(--sikshya-learn-radius-12);
  overflow: hidden;
  box-shadow: var(--sikshya-learn-shadow-panel);
  display: flex;
  flex-direction: column;
  min-height: 0;
  transition: box-shadow 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.sikshya-learnHubCard:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 23, 42, 0.14);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 18px 46px rgba(15, 23, 42, 0.10);
}

.sikshya-learnHubCard__media {
  background: var(--sikshya-learn-surface-2);
  aspect-ratio: 16 / 9;
}

.sikshya-learnHubCard__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sikshya-learnHubCard__ph {
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, var(--sikshya-learn-surface-2), var(--sikshya-learn-surface-3));
}

.sikshya-learnHubCard__body {
  padding: 14px 16px;
  min-width: 0;
  display: grid;
  gap: 12px;
}

.sikshya-learnHubCard__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-16);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.sikshya-learnHubCard__title a {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sikshya-learnHubCard__title a {
  color: inherit;
  text-decoration: none;
}

.sikshya-learnHubCard__title a:hover {
  text-decoration: underline;
}

.sikshya-learnHubCard__progress {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sikshya-learnHubCard__bar {
  flex: 1 1 auto;
  height: 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.sikshya-learnHubCard__bar span {
  display: block;
  height: 100%;
  background: color-mix(in srgb, var(--sikshya-learn-primary) 80%, #22c55e);
}

.sikshya-learnHubCard__pct {
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 700;
  color: var(--sikshya-learn-muted);
  flex: 0 0 auto;
}

.sikshya-learnHubCard__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 640px) {
  .sikshya-learnHubCard__media {
    height: 140px;
  }
}

/* Hub header: center vertically within the header rail */
.sikshya-learning-shell--hub .sikshya-contentPanel--header .sikshya-learnHeader__titles {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
}

.sikshya-learning-shell--hub .sikshya-contentPanel--header .sikshya-learnHeader__kicker {
  margin: 0;
  line-height: 1.1;
}

.sikshya-learning-shell--hub .sikshya-contentPanel--header .sikshya-learnHeader__title {
  margin: 0;
  line-height: 1.2;
}

.sikshya-contentSection {
  margin-top: 24px;
  margin-bottom: 24px;
}

.sikshya-contentSection:first-child {
  margin-top: 0;
}

.sikshya-contentSection:last-child {
  margin-bottom: 0;
}

.sikshya-contentPanel {
  background: var(--sikshya-learn-surface);
  border: 1px solid var(--sikshya-learn-border);
  border-radius: var(--sikshya-learn-radius-12);
  padding: 20px 22px;
  min-height: 0;
  box-shadow: var(--sikshya-learn-shadow-panel);
}

.sikshya-contentPanel--plain {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}

/* Right content area: keep a clean minimum reading canvas */
.sikshya-learnContent .sikshya-contentPanel--plain {
  display: flex;
  flex-direction: column;
  padding-top: var(--sikshya-learn-railhead-pad);
}

.sikshya-learnContent .sikshya-contentPanel--plain > :last-child {
  margin-bottom: 0;
}

/* Empty / error state (content area only) */
.sikshya-contentSection--centered {
  min-height: calc(100dvh - (var(--sikshya-learn-top-offset) + (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible))));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0;
  margin-bottom: 0;
  padding: 28px 0;
}

.sikshya-contentPanel--emptyState {
  border-radius: var(--sikshya-learn-radius-16);
  padding: 28px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 18px 44px rgba(15, 23, 42, 0.08);
  max-width: 560px;
  width: 100%;
  background: rgba(248, 250, 252, 0.95);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.sikshya-contentPanel--notice {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  margin-bottom: 12px;
}

.sikshya-learnNotice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--sikshya-learn-radius-12);
  border: 1px solid rgba(15, 23, 42, 0.10);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.sikshya-learnNotice__icon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
}

.sikshya-learnNotice__icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.sikshya-learnNotice__body {
  min-width: 0;
}

.sikshya-learnNotice__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-14);
  font-weight: 900;
  line-height: 1.25;
  color: var(--sikshya-learn-text);
}

.sikshya-learnNotice__message {
  margin: 4px 0 0;
  font-size: var(--sikshya-learn-fs-13);
  line-height: 1.45;
  color: var(--sikshya-learn-muted);
}

.sikshya-learnNotice--warning {
  border-color: rgba(245, 158, 11, 0.28);
  background: rgba(255, 251, 235, 0.92);
}

.sikshya-learnNotice--warning .sikshya-learnNotice__icon {
  background: rgba(245, 158, 11, 0.18);
  color: #b45309;
}

.sikshya-learnEmptyState {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: start;
}

.sikshya-learnEmptyState__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.30);
  color: #b45309;
}

.sikshya-learnEmptyState__icon svg {
  width: 20px;
  height: 20px;
}

.sikshya-learnEmptyState__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-18);
  line-height: var(--sikshya-learn-lh-tight);
  letter-spacing: var(--sikshya-learn-tracking-tight);
  font-weight: 800;
  color: var(--sikshya-learn-text);
}

.sikshya-learnEmptyState__message {
  margin: 8px 0 0;
  color: var(--sikshya-learn-muted);
}

.sikshya-learnEmptyState__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

@media (max-width: 640px) {
  .sikshya-contentPanel--emptyState {
    padding: 20px;
    max-width: 520px;
  }
}

/* Content column: prefer plain, unboxed reading experience */
.sikshya-learning-shell .sikshya-learnContent .sikshya-contentPanel {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.sikshya-learning-shell .sikshya-learnContent .sikshya-contentPanel--plain {
  padding-top: var(--sikshya-learn-railhead-pad);
}

.sikshya-learning-shell .sikshya-learnContent .sikshya-contentPanel--header {
  background: var(--sikshya-learn-surface);
  border-bottom: 1px solid var(--sikshya-learn-border);
  padding-left: var(--sikshya-learn-railhead-pad);
  padding-right: max(var(--sikshya-learn-railhead-pad), env(safe-area-inset-right));
}

.sikshya-contentPanel--header {
  height: var(--sikshya-learn-railhead-h);
  padding: 0 var(--sikshya-learn-railhead-pad);
  border-radius: 0;
  box-shadow: none;
  border-left: 0;
  border-right: 0;
  border-top: 0;
  border-bottom: 1px solid var(--sikshya-learn-border);
  display: flex;
  align-items: center;
  position: sticky;
  /* Scrollport is `.sikshya-learnContent` on desktop (overflow-y: auto); `top` must be non-auto for sticky to engage. */
  top: 0;
  z-index: 44;
  /* Bleed through column padding so header strip touches edges */
  margin-left: -22px;
  margin-right: calc(-1 * max(22px, env(safe-area-inset-right)));
  backdrop-filter: saturate(1.05) blur(6px);
}

/* Hub (and any view where the main column does not create its own scrollport): stick under the Learn top bar. */
.sikshya-learning-shell--hub .sikshya-learnContent .sikshya-contentPanel--header {
  top: calc(var(--sikshya-learn-top-offset) + (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible)));
}

@media (max-width: 1023px) {
  .sikshya-contentPanel--header {
    margin-left: -16px;
    margin-right: -16px;
  }

  /* Document-level scroll: offset by sticky top bar so the header does not slide under it. */
  .sikshya-learning-shell--lesson .sikshya-learnContent .sikshya-contentPanel--header,
  .sikshya-learning-shell--quiz .sikshya-learnContent .sikshya-contentPanel--header,
  .sikshya-learning-shell--learn:not(.sikshya-learning-shell--hub) .sikshya-learnContent .sikshya-contentPanel--header {
    top: calc(var(--sikshya-learn-top-offset) + (var(--sikshya-learn-topbar-h) * var(--sikshya-learn-topbar-visible)));
  }
}

.sikshya-contentPanel--header .sikshya-learnHeader {
  width: 100%;
  margin-bottom: 0;
  gap: 0;
}

.sikshya-contentPanel--header .sikshya-learnHeader__title {
  font-size: var(--sikshya-learn-fs-16);
  line-height: 1.3;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sikshya-contentPanel--header .sikshya-learnHeader__top {
  align-items: center;
}

.sikshya-contentPanel--header .sikshya-learnHeader__actions {
  padding-top: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

/* Quiz timer (visible, near Start quiz button) */
.sikshya-quizTimer {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 12px;
  border: 1px solid rgba(37, 99, 235, 0.22);
  background: rgba(37, 99, 235, 0.08);
  color: var(--sikshya-learn-text);
  line-height: 1;
  white-space: nowrap;
}

.sikshya-quizTimer__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--sikshya-learn-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.sikshya-quizTimer__value {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  font-size: 14px;
  font-weight: 800;
  color: var(--sikshya-learn-accent, #2563eb);
}

/* -------------------------------------------------------------------------
   Rate course prompt (after completion)
   ------------------------------------------------------------------------- */
.sikshya-rateCourse{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--sik-f-border, #e2e8f0);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--sikshya-shadow);
  margin: 0 0 16px;
}
.sikshya-rateCourse__title{
  font-weight: 800;
  color: var(--sik-f-text, #0f172a);
  margin-bottom: 2px;
}
.sikshya-rateCourse__subtitle{
  font-size: 0.875rem;
  color: var(--sik-f-text-muted, #64748b);
}
.sikshya-rateCourse__stars{
  display:inline-flex;
  align-items:center;
  gap: 4px;
  flex-wrap: nowrap;
}
.sikshya-rateCourse__star{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--sik-f-border, #e2e8f0);
  background: #fff;
  color: #f5a623;
  text-decoration:none;
  font-size: 1.15rem;
  line-height: 1;
}
.sikshya-rateCourse__star:hover{
  background: #fff7e6;
  border-color: #f5a623;
}
.sikshya-rateCourse__dismiss{
  color: var(--sik-f-text-muted, #64748b);
  font-size: 0.875rem;
  text-decoration: none;
  white-space: nowrap;
}
.sikshya-rateCourse__dismiss:hover{ text-decoration: underline; }
@media (max-width: 640px){
  .sikshya-rateCourse{ flex-direction: column; align-items: flex-start; }
  .sikshya-rateCourse__stars{ width: 100%; }
}

.sikshya-learnHeader__metaInline {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  max-width: min(48vw, 540px);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  align-self: center;
}

.sikshya-learnHeader__metaInline::-webkit-scrollbar {
  display: none;
}

.sikshya-learnHeader__metaInline .sikshya-pill {
  padding: 5px 9px;
  font-size: 11px;
  border-radius: 999px;
  white-space: nowrap;
}

.sikshya-contentPanel--header .sikshya-learnHeader__titles {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.sikshya-learnHeader__titleRow {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.sikshya-learnHeader__titleRow--withMeta {
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.sikshya-learnHeader__titleLeft {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1 1 auto;
}

.sikshya-learnHeader__chapterInline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  max-width: 34ch;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--sikshya-learn-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sikshya-learnHeader__chapterInline .sikshya-learnHeader__chapterIcon {
  opacity: 0.85;
}

.sikshya-learnHeader__typeIcon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--sikshya-learn-primary);
}

.sikshya-learnHeader__typeIcon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.sikshya-contentPanel--header .sikshya-learnHeader__chapter {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--sikshya-learn-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sikshya-learnHeader__chapterIcon {
  display: inline-flex;
  color: var(--sikshya-learn-muted);
  opacity: 0.9;
}

.sikshya-learnHeader__chapterIcon svg {
  width: 14px;
  height: 14px;
  display: block;
}

.sikshya-learnContent > .sikshya-contentPanel[role="alert"] {
  border-color: rgba(220, 38, 38, 0.35);
  background: rgba(254, 242, 242, 0.85);
  box-shadow: var(--sikshya-learn-shadow-sm);
}

.sikshya-learnContent > .sikshya-contentPanel[role="alert"] p {
  margin: 0;
  color: var(--sikshya-learn-text);
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.55;
}

/* Content header + meta */
.sikshya-learnHeader {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.sikshya-learnHeader__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  position: relative;
}

.sikshya-learnHeader__titles {
  min-width: 0;
}

.sikshya-learnHeader__actions {
  flex: 0 0 auto;
  padding-top: 2px;
}

.sikshya-quizLockInline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: min(480px, 90vw);
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.28);
  border-radius: 12px;
  padding: 8px 10px;
}

.sikshya-quizLockInline__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 700;
  color: #991b1b;
  white-space: nowrap;
}

.sikshya-quizLockInline__badge svg {
  width: 14px;
  height: 14px;
}

.sikshya-quizLockInline__text {
  font-size: var(--sikshya-learn-fs-12);
  line-height: 1.35;
  color: #7f1d1d;
}

.sikshya-tooltipWrap {
  display: inline-flex;
  position: relative;
}

.sikshya-tooltipWrap > .sikshya-btn[disabled] {
  cursor: not-allowed;
  opacity: 0.92;
}

.sikshya-tooltip {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: max-content;
  max-width: min(340px, calc(100vw - 32px));
  background: rgba(15, 23, 42, 0.96);
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: var(--sikshya-learn-fs-12);
  line-height: 1.35;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.22);
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 140ms ease, transform 140ms ease;
  z-index: 80;
}

.sikshya-tooltip::before {
  content: "";
  position: absolute;
  top: -6px;
  right: 14px;
  width: 10px;
  height: 10px;
  background: rgba(15, 23, 42, 0.96);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  transform: rotate(45deg);
}

.sikshya-tooltipWrap:hover .sikshya-tooltip,
.sikshya-tooltipWrap:focus-within .sikshya-tooltip {
  opacity: 1;
  transform: translateY(0);
}

.sikshya-quizLockNotice {
  margin-bottom: 16px;
  border-radius: 14px;
  border: 1px solid rgba(239, 68, 68, 0.3);
  background: linear-gradient(180deg, rgba(254, 242, 242, 0.95) 0%, rgba(254, 226, 226, 0.92) 100%);
  padding: 14px 16px;
}

.sikshya-quizLockNotice__title {
  margin: 0 0 6px;
  font-size: var(--sikshya-learn-fs-15);
  font-weight: 700;
  color: #991b1b;
}

.sikshya-quizLockNotice__desc {
  margin: 0;
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.5;
  color: #7f1d1d;
}

/* Header progress (center) */
.sikshya-learnHeader__progressWrap {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
}

.sikshya-learnHeader__progressBtn {
  appearance: none;
  border: 1px solid rgba(37, 99, 235, 0.22);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.05) blur(6px);
  border-radius: 999px;
  padding: 8px 10px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  color: var(--sikshya-learn-text);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 10px 24px rgba(15, 23, 42, 0.06);
  transition: transform 120ms ease, background 160ms ease, border-color 160ms ease;
}

.sikshya-learnHeader__progressBtn:hover {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(37, 99, 235, 0.34);
}

.sikshya-learnHeader__progressBtn:active {
  transform: translateY(1px);
}

.sikshya-learnHeader__progressBar {
  width: 170px;
  height: 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.14);
  overflow: hidden;
  position: relative;
}

.sikshya-learnHeader__progressFill {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--sikshya-learn-success);
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.sikshya-learnHeader__progressPct {
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 800;
  letter-spacing: var(--sikshya-learn-tracking-tight);
  color: var(--sikshya-learn-ink);
  min-width: 3ch;
  text-align: right;
}

.sikshya-learnHeader__progressCount {
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 800;
  color: var(--sikshya-learn-muted);
  min-width: 5.5ch;
  text-align: right;
}

.sikshya-progressPopover {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: min(360px, calc(100vw - 32px));
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
  padding: 12px 12px;
  z-index: 60;
}

.sikshya-progressPopover[hidden] {
  display: none !important;
}

.sikshya-progressPopover__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 900;
  color: var(--sikshya-learn-text);
}

.sikshya-progressPopover__meta {
  margin-top: 2px;
  font-size: var(--sikshya-learn-fs-12);
  color: var(--sikshya-learn-muted);
}

.sikshya-progressPopover__bar {
  margin-top: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.sikshya-progressPopover__bar > span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--sikshya-learn-success);
}

.sikshya-progressPopover__grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (min-width: 1024px) {
  .sikshya-progressPopover__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.sikshya-progressPopover__stat {
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(248, 250, 252, 0.7);
  border-radius: 12px;
  padding: 10px;
}

.sikshya-progressPopover__k {
  font-size: var(--sikshya-learn-fs-11);
  color: var(--sikshya-learn-muted);
  margin: 0;
}

.sikshya-progressPopover__v {
  margin: 3px 0 0;
  font-size: var(--sikshya-learn-fs-14);
  font-weight: 900;
  color: var(--sikshya-learn-text);
}

@media (max-width: 640px) {
  .sikshya-learnHeader__progressBar {
    width: 132px;
  }
}

/* Disabled button polish (Learn UI) */
.sikshya-learning-shell .sikshya-btn[disabled],
.sikshya-learning-shell .sikshya-btn[aria-disabled="true"] {
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none !important;
  transform: none !important;
  filter: grayscale(0.08);
}

.sikshya-learning-shell .sikshya-btn[disabled]:hover,
.sikshya-learning-shell .sikshya-btn[aria-disabled="true"]:hover {
  background: inherit;
}

.sikshya-learnHeader__kicker {
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sikshya-learn-muted);
  margin-bottom: 6px;
}

.sikshya-learnHeader__chapter {
  margin-top: 6px;
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 700;
  color: var(--sikshya-learn-muted);
  line-height: 1.35;
}

.sikshya-learnHeader__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-22);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--sikshya-learn-text);
}

.sikshya-learnMetaRow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sikshya-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface-2);
  color: var(--sikshya-learn-text);
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 600;
  line-height: 1.25;
  white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.sikshya-pill:hover {
  border-color: rgba(37, 99, 235, 0.22);
  background: var(--sikshya-learn-surface-3);
}

.sikshya-pill--emphasis {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.32);
  color: var(--sikshya-learn-accent, #2563eb);
}

.sikshya-progress {
  display: grid;
  gap: 10px;
  padding-top: 4px;
}

.sikshya-progress__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: var(--sikshya-learn-fs-13);
}

.sikshya-progress__top strong {
  font-weight: 800;
  color: var(--sikshya-learn-text);
}

.sikshya-progress__bar {
  height: 8px;
  border-radius: 999px;
  background: var(--sikshya-learn-surface-2);
  overflow: hidden;
  border: 1px solid rgba(37, 99, 235, 0.12);
}

.sikshya-progress__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sikshya-learn-primary), var(--sikshya-learn-primary-2));
}

/* Video player (lesson shell) */
.sikshya-videoMock {
  margin-top: 16px;
  width: 100%;
  max-width: 100%;
  border: 0;
  border-radius: var(--sikshya-learn-radius-12);
  overflow: hidden;
  background: #0b1220;
  box-shadow: none;
}

/* 16:9 stage: constrained height for long sessions */
.sikshya-videoMock__stage {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  max-height: min(60vh, 520px);
  overflow: hidden;
  background: radial-gradient(1200px 600px at 50% 10%, rgba(96, 165, 250, 0.35), transparent 60%),
    radial-gradient(800px 400px at 10% 90%, rgba(37, 99, 235, 0.35), transparent 60%),
    #0b1220;
}

.sikshya-videoMock__center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  color: rgba(255, 255, 255, 0.92);
}

.sikshya-videoMock__embed {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.sikshya-videoMock__badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.sikshya-videoMock__play {
  display: inline-grid;
  place-items: center;
  width: 80px;
  height: 80px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 800;
}

.sikshya-videoMock__controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: rgba(15, 23, 42, 0.65);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--sikshya-learn-fs-12);
  font-variant-numeric: tabular-nums;
}

.sikshya-videoMock__scrub {
  height: 5px;
  flex: 1;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
}

.sikshya-videoMock__spacer {
  width: 4px;
}

/* Lists + split columns */
.sikshya-learnSplit {
  display: grid;
  gap: 20px;
  margin-top: 18px;
  padding-top: 4px;
}

@media (min-width: 1024px) {
  .sikshya-learnSplit {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

.sikshya-learnH3 {
  margin: 0 0 12px;
  font-size: var(--sikshya-learn-fs-14);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--sikshya-learn-text);
}

/* ------------------------------------------------------------------
 * Learn notes tab — multiple private notes per lesson/quiz (REST)
 * ------------------------------------------------------------------ */
.sikshya-learnNotes__hint {
  margin: 0 0 8px;
  font-size: var(--sikshya-learn-fs-13);
  line-height: 1.45;
}

.sikshya-learnNotes__empty {
  margin: 10px 0 0;
  font-size: var(--sikshya-learn-fs-13);
}

.sikshya-learnNotes__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sikshya-learnNotes__card {
  padding: 12px 14px;
  border-radius: var(--sikshya-learn-radius-8);
  border: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface-2, rgba(248, 250, 252, 0.9));
}

.sikshya-learnNotes__meta {
  margin-bottom: 8px;
}

.sikshya-learnNotes__time {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sikshya-learn-muted);
}

.sikshya-learnNotes__body {
  font-size: var(--sikshya-learn-fs-13);
  line-height: 1.55;
  color: var(--sikshya-learn-text);
  white-space: pre-wrap;
  word-break: break-word;
}

.sikshya-learnNotes__edit {
  width: 100%;
  margin-top: 4px;
}

.sikshya-learnNotes__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.sikshya-learnNotes__btn {
  font-size: 12px;
  padding: 6px 12px;
}

.sikshya-learnNotes__btn--muted {
  background: transparent !important;
}

.sikshya-learnNotes__btn--danger {
  background: transparent !important;
  color: #b91c1c !important;
  border-color: rgba(185, 28, 28, 0.35) !important;
}

.sikshya-learnNotes__composer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--sikshya-learn-border);
}

.sikshya-learnNotes__composerLabel {
  display: block;
  margin-bottom: 6px;
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 600;
  color: var(--sikshya-learn-text);
}

.sikshya-learnList {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--sikshya-learn-text);
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.55;
}

.sikshya-learnList li {
  margin: 8px 0;
  padding-left: 2px;
}

.sikshya-learnList li::marker {
  color: var(--sikshya-learn-primary);
}

.sikshya-resList {
  margin: 0;
  padding-left: 1.15rem;
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.6;
}

.sikshya-resList li {
  margin: 10px 0;
}

.sikshya-resLink {
  color: var(--sikshya-learn-primary);
  font-weight: 600;
  text-decoration: none;
  text-underline-offset: 2px;
}

.sikshya-resLink:hover {
  text-decoration: underline;
  color: #1d4ed8;
}

/* Notes + announcements + reviews */
.sikshya-noteMock {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--sikshya-learn-border);
  border-radius: var(--sikshya-learn-radius-10);
  background: var(--sikshya-learn-surface-2);
  margin-bottom: 12px;
}

.sikshya-noteMock:last-of-type {
  margin-bottom: 0;
}

.sikshya-noteMock__time {
  font-weight: 800;
  font-size: var(--sikshya-learn-fs-12);
  font-variant-numeric: tabular-nums;
  color: var(--sikshya-learn-muted);
}

.sikshya-noteMock__text {
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.5;
  color: var(--sikshya-learn-text);
}

.sikshya-announce {
  border: 1px solid var(--sikshya-learn-border);
  border-radius: var(--sikshya-learn-radius-10);
  padding: 14px 16px;
  background: var(--sikshya-learn-surface-2);
}

.sikshya-announce__title {
  font-weight: 800;
  font-size: var(--sikshya-learn-fs-14);
  margin-bottom: 6px;
  color: var(--sikshya-learn-text);
}

.sikshya-announce__meta {
  font-size: var(--sikshya-learn-fs-12);
  margin-bottom: 10px;
}

/* Quiz landing (before questions are revealed) */
.sikshya-contentPanel--quizIntro {
  padding: 0;
  border-style: dashed;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.06), transparent 42%);
}

.sikshya-quizIntro {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(28px, 5vw, 48px) clamp(18px, 4vw, 40px) clamp(32px, 5vw, 52px);
  max-width: 560px;
  margin: 0 auto;
}

.sikshya-quizIntro__notice {
  order: -1;
  margin: 0 0 16px;
  padding: 10px 14px;
  max-width: 100%;
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.45;
  text-align: center;
  color: var(--sikshya-learn-text);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: var(--sikshya-learn-radius-md, 10px);
}

.sikshya-quizIntro__eyebrow {
  margin: 0 0 8px;
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sikshya-learn-accent, #2563eb);
}

.sikshya-quizIntro__title {
  margin: 0 0 12px;
  font-size: clamp(1.35rem, 2.6vw, 1.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--sikshya-learn-text);
}

.sikshya-quizIntro__lead {
  margin: 0 0 20px;
  font-size: var(--sikshya-learn-fs-15);
  line-height: 1.6;
  color: var(--sikshya-learn-muted);
  max-width: 46ch;
}

.sikshya-quizIntro__facts {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  width: 100%;
  max-width: 42ch;
  text-align: left;
}

.sikshya-quizIntro__facts li {
  position: relative;
  padding: 10px 0 10px 28px;
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.45;
  color: var(--sikshya-learn-text);
  border-bottom: 1px solid var(--sikshya-learn-border);
}

.sikshya-quizIntro__facts li:last-child {
  border-bottom: 0;
}

.sikshya-quizIntro__facts li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 15px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--sikshya-learn-accent, #2563eb);
  opacity: 0.85;
}

.sikshya-quizIntro__cta {
  min-width: min(100%, 220px);
  padding: 12px 28px;
  font-size: var(--sikshya-learn-fs-15);
  font-weight: 800;
}

.sikshya-quizIntro__hint {
  margin: 14px 0 0;
  max-width: 40ch;
  font-size: var(--sikshya-learn-fs-12);
  line-height: 1.55;
  color: var(--sikshya-learn-muted);
}

/* Quiz preview (quiz shell) */
.sikshya-quizMock {
  margin-top: 16px;
}

.sikshya-quizMock__card {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
}

.sikshya-quizMock__qTitle {
  font-weight: 800;
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.45;
  margin-bottom: 12px;
  color: var(--sikshya-learn-text);
}

.sikshya-quizMock__opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--sikshya-learn-radius-10);
  border: 0;
  background: transparent;
  margin-bottom: 8px;
  font-size: var(--sikshya-learn-fs-14);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.sikshya-quizMock__opt:hover {
  background: rgba(37, 99, 235, 0.03);
}

.sikshya-quizMock__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--sikshya-learn-border);
}

/* Quiz: advanced question types (learn form) */
.sikshya-quizQ {
  margin: 12px 0;
  padding: 14px 14px 12px;
  border-radius: var(--sikshya-learn-radius-12, 12px);
  border: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface-2);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
}

.sikshya-quizQ:first-child {
  margin-top: 0;
}

.sikshya-quizQ__title {
  margin: 0 0 10px;
  padding: 0;
  font-size: calc(var(--sikshya-learn-fs-14) + 1px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--sikshya-learn-text);
}

.sikshya-quizQ:focus-within {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.sikshya-quizQ__opt {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 10px;
  margin: 0 0 8px;
  border-radius: var(--sikshya-learn-radius-10, 10px);
  border: 1px solid var(--sikshya-learn-border);
  background: #fff;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.sikshya-quizQ__opt:last-child {
  margin-bottom: 0;
}

.sikshya-quizQ__opt:hover {
  background: rgba(37, 99, 235, 0.03);
  border-color: rgba(37, 99, 235, 0.22);
}

.sikshya-quizQ__opt:focus-within {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.sikshya-quizQ__opt input[type='radio'],
.sikshya-quizQ__opt input[type='checkbox'] {
  margin-top: 2px;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  accent-color: var(--sikshya-learn-accent, #2563eb);
}

.sikshya-quizQ__opt span {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
  font-size: calc(var(--sikshya-learn-fs-14) + 1px);
  line-height: 1.5;
  color: var(--sikshya-learn-text);
}

/* Checked state (modern browsers) */
.sikshya-quizQ__opt:has(input:checked) {
  border-color: rgba(37, 99, 235, 0.35);
  background: rgba(37, 99, 235, 0.06);
}

/* Checked state fallback */
.sikshya-quizQ__opt input:checked + span {
  font-weight: 700;
}

.sikshya-quizQ__textarea {
  width: 100%;
  min-height: 88px;
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: var(--sikshya-learn-radius-10, 10px);
  border: 1px solid var(--sikshya-learn-border);
  font-size: calc(var(--sikshya-learn-fs-14) + 1px);
  background: #fff;
  color: var(--sikshya-learn-text);
  box-sizing: border-box;
}

.sikshya-quizQ__textarea:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.sikshya-ordering {
  margin: 8px 0 0;
  padding-left: 1.25rem;
  list-style: decimal;
}

.sikshya-ordering__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--sikshya-learn-border);
}

.sikshya-ordering__item:hover {
  background: rgba(37, 99, 235, 0.03);
}

.sikshya-ordering__item:last-child {
  border-bottom: 0;
}

.sikshya-ordering__text {
  flex: 1;
  min-width: 0;
  font-size: var(--sikshya-learn-fs-14);
}

.sikshya-ordering__controls {
  display: flex;
  flex-shrink: 0;
  gap: 4px;
}

.sikshya-matching {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sikshya-matching__row {
  display: grid;
  grid-template-columns: 1fr minmax(120px, 1fr);
  gap: 12px;
  align-items: center;
  font-size: var(--sikshya-learn-fs-14);
}

.sikshya-matching__left {
  font-weight: 700;
  color: var(--sikshya-learn-text);
}

.sikshya-matching__select {
  width: 100%;
  min-height: 40px;
  padding: 6px 10px;
  border-radius: var(--sikshya-learn-radius-10, 10px);
  border: 1px solid var(--sikshya-learn-border);
  background: #fff;
  color: var(--sikshya-learn-text);
}

.sikshya-matching__select:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

@media (max-width: 640px) {
  .sikshya-matching__row {
    grid-template-columns: 1fr;
  }
}

.sikshya-quizPager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 12px 0 16px;
  padding: 10px 12px;
  border-radius: var(--sikshya-learn-radius-10, 10px);
  background: rgba(15, 23, 42, 0.03);
  border: 1px solid var(--sikshya-learn-border);
}

.sikshya-quizPager__label {
  margin: 0;
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 600;
  color: var(--sikshya-learn-muted);
}

/* Quiz results panel (rendered by quiz-taker.js) */
.sikshya-quiz-result--panel {
  margin-top: 12px;
}

.sikshya-quizResults {
  padding: 14px 14px;
  border-radius: var(--sikshya-learn-radius-12);
  border: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface);
  box-shadow: var(--sikshya-learn-shadow-sm);
}

.sikshya-quizResults__title {
  margin: 0;
  font-size: var(--sikshya-learn-fs-16);
  font-weight: 800;
  letter-spacing: var(--sikshya-learn-tracking-tight);
}

.sikshya-quizResults__score,
.sikshya-quizResults__req,
.sikshya-quizResults__pass,
.sikshya-quizResults__fail {
  margin: 6px 0 0;
}

.sikshya-quizResults__score {
  font-weight: 700;
}

.sikshya-quizResults__req {
  color: var(--sikshya-learn-muted);
  font-size: var(--sikshya-learn-fs-14);
}

.sikshya-quizResults__pass {
  font-weight: 800;
  color: var(--sikshya-learn-success);
}

.sikshya-quizResults__fail {
  font-weight: 800;
  color: var(--sikshya-learn-danger);
}

.sikshya-quizResults__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

/* Tabs — clearer “course player” chrome */
.sikshya-tabsSection {
  margin-top: 10px;
}

.sikshya-tabsBar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: 1px solid var(--sikshya-learn-border);
  margin-bottom: 16px;
  padding-bottom: 0;
}

.sikshya-tabBtn {
  appearance: none;
  border: 0;
  background: transparent;
  margin-bottom: -1px;
  padding: 11px 14px;
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 700;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  border-radius: var(--sikshya-learn-radius-8) var(--sikshya-learn-radius-8) 0 0;
  color: var(--sikshya-learn-muted);
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.sikshya-tabBtn:hover {
  color: var(--sikshya-learn-text);
  background: var(--sikshya-learn-accent-wash);
}

.sikshya-tabBtn.is-active {
  border-bottom-color: var(--sikshya-learn-primary);
  color: var(--sikshya-learn-primary);
  font-weight: 800;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.07) 0%, transparent 100%);
}

.sikshya-tabBtn:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: 2px;
}

.sikshya-tabPanel {
  display: none;
}

.sikshya-tabPanel.is-active {
  display: block;
}

.sikshya-tabPanel .sikshya-contentPanel {
  max-width: none;
  width: 100%;
}

/* WordPress / rich text inside panels */
.sikshya-learnContent .sikshya-contentPanel :where(p) {
  margin: 0 0 1em;
  font-size: var(--sikshya-learn-fs-15);
  line-height: var(--sikshya-learn-lh-body);
  color: var(--sikshya-learn-text);
}

.sikshya-learnContent .sikshya-contentPanel :where(p):last-child {
  margin-bottom: 0;
}

.sikshya-learnContent .sikshya-contentPanel p a,
.sikshya-learnContent .sikshya-contentPanel li a,
.sikshya-learnContent .sikshya-contentPanel blockquote a,
.sikshya-learnContent .sikshya-contentPanel td a,
.sikshya-learnContent .sikshya-contentPanel figcaption a {
  color: var(--sikshya-learn-primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.sikshya-learnContent .sikshya-contentPanel p a:hover,
.sikshya-learnContent .sikshya-contentPanel li a:hover,
.sikshya-learnContent .sikshya-contentPanel blockquote a:hover,
.sikshya-learnContent .sikshya-contentPanel td a:hover,
.sikshya-learnContent .sikshya-contentPanel figcaption a:hover {
  color: #1d4ed8;
}

.sikshya-learnContent .sikshya-contentPanel :where(ul, ol) {
  margin: 0 0 1em;
  padding-left: 1.25rem;
  font-size: var(--sikshya-learn-fs-15);
  line-height: var(--sikshya-learn-lh-body);
}

.sikshya-learnContent .sikshya-contentPanel :where(li) {
  margin: 0.35em 0;
}

.sikshya-learnContent .sikshya-contentPanel :where(h2, h3, h4) {
  margin: 1.25em 0 0.5em;
  font-weight: 800;
  line-height: var(--sikshya-learn-lh-tight);
  letter-spacing: var(--sikshya-learn-tracking-tight);
  color: var(--sikshya-learn-text);
}

.sikshya-learnContent .sikshya-contentPanel :where(h2) {
  font-size: var(--sikshya-learn-fs-18);
}

.sikshya-learnContent .sikshya-contentPanel :where(h3) {
  font-size: var(--sikshya-learn-fs-16);
}

.sikshya-learnContent .sikshya-contentPanel :where(h4) {
  font-size: var(--sikshya-learn-fs-14);
}

.sikshya-learnContent .sikshya-contentPanel :where(h2):first-child,
.sikshya-learnContent .sikshya-contentPanel :where(h3):first-child,
.sikshya-learnContent .sikshya-contentPanel :where(h4):first-child {
  margin-top: 0;
}

.sikshya-learnContent .sikshya-contentPanel :where(img) {
  max-width: 100%;
  height: auto;
  border-radius: var(--sikshya-learn-radius-10);
}

.sikshya-learnContent .sikshya-contentPanel :where(pre) {
  margin: 1em 0;
  padding: 14px 16px;
  border-radius: var(--sikshya-learn-radius-12);
  background: rgba(2, 6, 23, 0.92);
  color: rgba(248, 250, 252, 0.92);
  overflow: auto;
  font-size: 13px;
  line-height: 1.55;
}

.sikshya-learnContent .sikshya-contentPanel :where(code) {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.92em;
}

.sikshya-learnContent .sikshya-contentPanel :where(:not(pre) > code) {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.08);
  color: #1d4ed8;
}

.sikshya-learnContent .sikshya-contentPanel :where(table) {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: var(--sikshya-learn-fs-14);
}

.sikshya-learnContent .sikshya-contentPanel :where(th, td) {
  border-bottom: 1px solid var(--sikshya-learn-border);
  padding: 10px 8px;
  text-align: left;
  vertical-align: top;
}

.sikshya-learnContent .sikshya-contentPanel :where(th) {
  font-weight: 800;
  color: var(--sikshya-learn-text);
}

/* Native / embedded players in lesson prose — full width, locked 16:9 */
.sikshya-learnContent .sikshya-contentPanel :where(video) {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #0b1220;
  border-radius: var(--sikshya-learn-radius-10);
}

.sikshya-learnContent .sikshya-contentPanel iframe[src*="youtube.com/embed"],
.sikshya-learnContent .sikshya-contentPanel iframe[src*="youtube-nocookie.com/embed"],
.sikshya-learnContent .sikshya-contentPanel iframe[src*="player.vimeo.com/video"] {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: var(--sikshya-learn-radius-10);
}

/*
 * Hosted lesson player (LessonLearnContent) — iframe + height:auto + aspect-ratio often collapses
 * to zero height inside the Learn column (flex/min-height chains). Wrap uses :has(); link-only fallbacks omit it.
 */
.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video:has(iframe),
.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video:has(video) {
  position: relative;
  width: 100%;
  max-width: 100%;
  margin: 0 0 1rem;
  aspect-ratio: 16 / 9;
  border-radius: var(--sikshya-learn-radius-10);
  background: #0b1220;
  overflow: hidden;
}

.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video iframe,
.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video video {
  display: block;
  border: 0;
  border-radius: inherit;
}

.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video:has(iframe) iframe,
.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video:has(video) video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: unset;
}

.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video:has(iframe) :where(.wp-block-embed, .wp-block-embed__wrapper, figure) {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
}

.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--video :where(.wp-block-embed, figure) iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--audio:has(audio) {
  width: 100%;
  margin: 0 0 1rem;
}

.sikshya-learnContent .sikshya-contentPanel .sikshya-lesson-embed--audio audio {
  display: block;
  width: 100%;
}

/*
 * SCORM/H5P player (Pro) — mounted via `sikshya_lesson_above_tabs`; keep iframe from collapsing in flex layouts.
 */
/* Align with hosted video strip — player.css defaults add vertical margin. */
.sikshya-learnContent .sikshya-contentSection--lessonInteractive .sik-player {
  margin-top: 0;
  margin-bottom: 0;
}

.sikshya-learnContent .sikshya-contentSection--lessonInteractive .sik-player__frame {
  min-height: min(72vh, 560px);
}

.sikshya-learnContent .sikshya-contentSection--lessonInteractive .sik-player__iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
  border: 0;
  border-radius: var(--sikshya-learn-radius-10);
  background: var(--sikshya-learn-surface);
}

.sikshya-learnContent .sikshya-contentPanel :where(blockquote) {
  margin: 1em 0;
  padding: 12px 16px;
  border-left: 3px solid rgba(37, 99, 235, 0.45);
  background: var(--sikshya-learn-surface-2);
  border-radius: 0 var(--sikshya-learn-radius-8) var(--sikshya-learn-radius-8) 0;
  color: var(--sikshya-learn-text);
}

/* Course content — curriculum accordion + lesson rows (Sikshya Learn) */
.sikshya-curriculumOutline {
  margin: 0;
  padding: 0;
}

.sikshya-curriculumOutline__empty {
  margin: 0;
  padding: var(--sikshya-learn-space-16);
  font-size: var(--sikshya-learn-fs-14);
  line-height: 1.5;
  color: var(--sikshya-learn-muted);
}

.sikshya-curriculumOutline__chapter {
  border-bottom: 1px solid var(--sikshya-learn-border);
  margin: 0;
}

.sikshya-curriculumOutline__sectionSummary {
  cursor: pointer;
  list-style: none;
  padding: 0;
  margin: 0;
  background: var(--sikshya-learn-surface);
  user-select: none;
  transition: background 0.15s ease;
}

.sikshya-curriculumOutline__sectionSummary:hover {
  background: var(--sikshya-learn-hover);
}

.sikshya-curriculumOutline__sectionSummary:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: -2px;
  border-radius: var(--sikshya-learn-radius-10);
}

.sikshya-curriculumOutline__sectionSummary::-webkit-details-marker,
.sikshya-curriculumOutline__sectionSummary::marker {
  display: none;
}

.sikshya-curriculumOutline__chapter[open] > .sikshya-curriculumOutline__sectionSummary {
  background: var(--sikshya-curriculum-section-open);
}

.sikshya-curriculumOutline__chapter[data-sikshya-current-chapter="1"] > .sikshya-curriculumOutline__sectionSummary {
  background: var(--sikshya-learn-sidebar-active);
  box-shadow: inset 4px 0 0 var(--sikshya-curriculum-accent);
}

.sikshya-curriculumOutline__chapter[data-sikshya-current-chapter="1"] > .sikshya-curriculumOutline__sectionSummary .sikshya-curriculumOutline__sectionTitle {
  color: var(--sikshya-curriculum-accent-strong);
}

.sikshya-curriculumOutline__chapter[data-sikshya-current-chapter="1"] > .sikshya-curriculumOutline__sectionSummary .sikshya-curriculumOutline__sectionChevron {
  color: var(--sikshya-curriculum-accent-strong);
}

.sikshya-curriculumOutline__chapter[data-sikshya-current-chapter="1"] > .sikshya-curriculumOutline__sectionSummary:hover {
  background: rgba(37, 99, 235, 0.12);
}

.sikshya-curriculumOutline__chapter[open] > .sikshya-curriculumOutline__sectionSummary:hover {
  background: var(--sikshya-curriculum-section-open);
}

.sikshya-curriculumOutline__sectionHead {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px var(--sikshya-learn-space-16) 12px;
  min-height: 48px;
}

.sikshya-curriculumOutline__sectionIcon {
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--sikshya-learn-muted);
}

.sikshya-curriculumOutline__sectionIcon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.sikshya-curriculumOutline__sectionText {
  display: grid;
  grid-template-columns: 1fr auto;
  column-gap: 10px;
  row-gap: 4px;
  min-width: 0;
  flex: 1;
}

.sikshya-curriculumOutline__sectionLabel {
  display: block;
  grid-column: 1 / -1;
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sikshya-learn-muted);
}

.sikshya-curriculumOutline__sectionTitle {
  display: block;
  grid-column: 1 / 2;
  font-size: var(--sikshya-learn-fs-14);
  font-weight: 700;
  line-height: 1.35;
  color: var(--sikshya-learn-text);
  letter-spacing: -0.01em;
}

.sikshya-curriculumOutline__sectionMeta {
  display: block;
  grid-column: 2 / 3;
  align-self: center;
  text-align: right;
  white-space: nowrap;
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 500;
  line-height: 1.35;
  color: var(--sikshya-learn-muted);
  font-variant-numeric: tabular-nums;
}

.sikshya-curriculumOutline__sectionChevron {
  flex: 0 0 auto;
  color: var(--sikshya-learn-muted);
  margin-top: 2px;
  transition: transform 0.2s ease, color 0.15s ease;
}

.sikshya-curriculumOutline__sectionSummary:hover .sikshya-curriculumOutline__sectionChevron {
  color: var(--sikshya-learn-text);
}

.sikshya-curriculumOutline__sectionChevron svg {
  width: 16px;
  height: 16px;
  display: block;
}

.sikshya-curriculumOutline__chapter[open] .sikshya-curriculumOutline__sectionChevron {
  transform: rotate(180deg);
  color: var(--sikshya-learn-text);
}

.sikshya-curriculumOutline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--sikshya-learn-surface);
}

.sikshya-curriculumOutline__item {
  margin: 0;
  padding: 0;
}

.sikshya-curriculumOutline__row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding-right: 6px;
  border-top: 1px solid var(--sikshya-learn-border);
  background: var(--sikshya-learn-surface);
  transition: background 0.15s ease;
}

.sikshya-curriculumOutline__row.is-current {
  background: var(--sikshya-curriculum-row-active);
  box-shadow: inset 3px 0 0 var(--sikshya-curriculum-accent);
}

.sikshya-curriculumOutline__row:focus-within {
  background: var(--sikshya-learn-accent-wash);
}

.sikshya-curriculumOutline__row.is-current:focus-within {
  background: var(--sikshya-learn-accent-wash-2);
}

.sikshya-curriculumOutline__row:not(.is-current):hover {
  background: var(--sikshya-learn-hover);
}

.sikshya-curriculumOutline__link {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 8px 12px var(--sikshya-learn-space-16);
  text-decoration: none;
  color: var(--sikshya-learn-text);
  border: 0;
  box-shadow: none;
  border-radius: 0;
}

.sikshya-curriculumOutline__link.is-locked {
  cursor: not-allowed;
  opacity: 0.88;
}

.sikshya-curriculumOutline__link.is-locked .sikshya-curriculumOutline__lessonTitle {
  color: var(--sikshya-learn-muted);
}

.sikshya-curriculumOutline__link.is-locked .sikshya-curriculumOutline__itemIcon {
  opacity: 0.6;
}

.sikshya-curriculumOutline__lock {
  flex: 0 0 auto;
  margin-top: 2px;
  margin-inline-start: auto;
  padding-inline-start: 6px;
  color: var(--sikshya-learn-muted);
  display: inline-flex;
  align-items: center;
}

.sikshya-curriculumOutline__lock svg {
  display: block;
}

.sikshya-curriculumOutline__itemIcon {
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--sikshya-learn-muted);
  opacity: 0.95;
}

.sikshya-curriculumOutline__itemIcon svg {
  width: 14px;
  height: 14px;
  display: block;
}

.sikshya-curriculumOutline__check {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border-radius: 999px;
  border: 2px solid var(--sikshya-curriculum-check-todo);
  background: var(--sikshya-learn-surface);
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.sikshya-curriculumOutline__check.is-done {
  border-color: transparent;
  background: transparent;
  color: var(--sikshya-learn-success);
  overflow: visible;
  width: 25px;
  height: 25px;
  margin-top: 0px;
}

.sikshya-curriculumOutline__check.is-done svg {
  width: 25px;
  height: 25px;
  display: block;
}

.sikshya-curriculumOutline__linkBody {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.sikshya-curriculumOutline__lessonTitle {
  font-size: var(--sikshya-learn-fs-14);
  font-weight: 500;
  line-height: 1.45;
  color: var(--sikshya-learn-text);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.sikshya-curriculumOutline__row.is-current .sikshya-curriculumOutline__lessonTitle {
  font-weight: 500;
  color: var(--sikshya-curriculum-accent-strong);
}

.sikshya-curriculumOutline__lessonSub {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--sikshya-learn-fs-12);
  line-height: 1.25;
  color: var(--sikshya-learn-muted);
}

.sikshya-curriculumOutline__dur {
  font-size: var(--sikshya-learn-fs-12);
  color: var(--sikshya-learn-muted);
  font-variant-numeric: tabular-nums;
}

.sikshya-curriculumOutline__dripHint {
  display: block;
  margin-top: 3px;
  font-size: 11px;
  line-height: 1.3;
  color: var(--sikshya-learn-muted);
  font-variant-numeric: tabular-nums;
}

.sikshya-curriculumOutline__resourcesBtn {
  appearance: none;
  flex: 0 0 auto;
  align-self: flex-end;
  margin: 2px 0 6px 0;
  padding: 4px 8px;
  min-height: 0;
  border-radius: 6px;
  border: 1px solid rgba(37, 99, 235, 0.32);
  background: var(--sikshya-learn-surface);
  color: var(--sikshya-curriculum-accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  line-height: 1.3;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.sikshya-curriculumOutline__resourcesBtn:hover {
  border-color: var(--sikshya-curriculum-accent);
  background: rgba(37, 99, 235, 0.06);
  color: var(--sikshya-curriculum-accent-strong);
}

.sikshya-curriculumOutline__resourcesBtn:active {
  transform: translateY(1px);
}

.sikshya-curriculumOutline__resourcesBtnInner {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.sikshya-curriculumOutline__resourcesBtnInner svg {
  width: 11px;
  height: 11px;
  flex-shrink: 0;
}

.sikshya-curriculumOutline__link:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: -2px;
  border-radius: var(--sikshya-learn-radius-8);
}

.sikshya-curriculumOutline__resourcesBtn:focus-visible {
  outline: 2px solid var(--sikshya-learn-focus);
  outline-offset: 2px;
  box-shadow: var(--sikshya-learn-focus-shadow);
}

/* -------------------------------------------------------------------
 * Pro: SCORM / H5P embeds (sikshya-pro — scorm_h5p_pro)
 * ------------------------------------------------------------------- */
.sikshya-learning-shell .sik-pro-embed {
  margin: 0 0 var(--sikshya-learn-space-16);
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--sikshya-learn-radius-12);
  background: var(--sikshya-learn-surface);
  box-shadow: var(--sikshya-learn-shadow-sm);
  overflow: hidden;
}

.sikshya-learning-shell .sik-pro-embed--scorm {
  border-color: rgba(15, 23, 42, 0.12);
}

.sikshya-learning-shell .sik-pro-embed--h5p {
  border-color: rgba(37, 99, 235, 0.2);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.03) 0%, var(--sikshya-learn-surface) 32%);
}

.sikshya-learning-shell .sik-pro-embed__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sikshya-learn-space-8) var(--sikshya-learn-space-12);
  padding: var(--sikshya-learn-space-10) var(--sikshya-learn-space-12);
  background: var(--sikshya-learn-surface-2);
  border-bottom: 1px solid var(--sikshya-learn-border);
}

.sikshya-learning-shell .sik-pro-embed--h5p .sik-pro-embed__toolbar {
  background: rgba(37, 99, 235, 0.06);
  border-bottom-color: rgba(37, 99, 235, 0.12);
}

.sikshya-learning-shell .sik-pro-embed__label {
  font-size: var(--sikshya-learn-fs-13);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--sikshya-learn-text);
}

.sikshya-learning-shell .sik-pro-embed__sublabel {
  margin-left: auto;
  font-size: var(--sikshya-learn-fs-12);
  font-weight: 500;
  color: var(--sikshya-learn-muted);
}

.sikshya-learning-shell .sik-pro-embed--h5p .sik-pro-embed__label {
  color: #1d4ed8;
}

.sikshya-learning-shell .sik-pro-embed__actions {
  display: flex;
  align-items: center;
  gap: var(--sikshya-learn-space-6);
  flex: 0 0 auto;
}

.sikshya-learning-shell .sik-pro-embed__hint {
  margin: 0;
  padding: var(--sikshya-learn-space-8) var(--sikshya-learn-space-12) 0;
  font-size: var(--sikshya-learn-fs-12);
  line-height: 1.45;
  color: var(--sikshya-learn-muted);
}

.sikshya-learning-shell .sik-pro-embed__hint--h5p {
  padding-bottom: var(--sikshya-learn-space-6);
}

.sikshya-learning-shell .sik-pro-embed__frame {
  position: relative;
  width: 100%;
  min-height: min(70vh, 800px);
  max-height: 85vh;
  background: #0b1220;
  margin-top: var(--sikshya-learn-space-8);
}

.sikshya-learning-shell .sik-pro-embed__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #0b1220;
}

.sikshya-learning-shell .sik-pro-embed__h5p {
  margin: 0;
  padding: 0 var(--sikshya-learn-space-12) var(--sikshya-learn-space-12);
  min-height: 320px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.sikshya-learning-shell .sik-pro-embed__h5p iframe,
.sikshya-learning-shell .sik-pro-embed__h5p object,
.sikshya-learning-shell .sik-pro-embed__h5p embed {
  max-width: 100%;
  border-radius: var(--sikshya-learn-radius-8);
}

.sikshya-learning-shell .sik-pro-embed__h5p :where(.h5p-iframe-wrapper, .h5p-content) {
  max-width: 100%;
}

@media (min-width: 64rem) {
  .sikshya-learning-shell .sik-pro-embed__h5p {
    min-height: 400px;
  }
}

/* Respect reduced motion on Learn surfaces only (this sheet loads on Learn templates) */
@media (prefers-reduced-motion: reduce) {
  .sikshya-learning-shell,
  .sikshya-learning-shell * {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}