/**
 * TTS-249 (I2 / A1): frontend stylesheet for the light-DOM player (player 1).
 *
 * Player 1 renders into the light DOM (so WordPress core's Additional CSS can
 * style it), which means its CSS must NOT be a JS-injected <style> tag in the
 * page (wp.org bars inline <style>/<script> in output). Instead:
 *   - the selector-based / stateful / layout rules live here (enqueued via
 *     wp_enqueue_style), and
 *   - the dynamic per-button values (colors, size, border, margins, icon
 *     visibility) are passed as CSS custom properties + inline style="" on the
 *     button/wrapper by text-to-audio-button.js (a style ATTRIBUTE is allowed;
 *     only <style> TAGS are flagged).
 *
 * Players 2-6 (Pro) keep their own shadow-DOM <style> — that's isolated and
 * never appears in the page's light DOM, so it isn't a page-level concern.
 *
 * Selectors are class-scoped (`.tts__listent_content`). The base box/visual
 * props are applied inline on the button element (highest specificity, beats
 * theme rules); the colour-critical hover rules below use !important so theme
 * `button:hover{}` rules can't override them.
 */

/* Defensive typography reset — neutralise the few inheritable props a theme's
   `button{}` / global rules could bleed into the light-DOM button. Box/visual
   props are set inline on the element and already win. */
.tts__listent_content,
.tts__listent_content * {
    line-height: normal;
    text-transform: none;
    letter-spacing: normal;
    word-spacing: normal;
    text-shadow: none;
    font-style: normal;
}

/* TTS-249: the player host is a custom element (`<tts-play-button>`), which the
   UA renders as `display: inline` by default. Inline elements IGNORE `max-width`
   and `margin-inline: auto`, so block-theme "constrained" layouts (Twenty
   Twenty-Five and every other block theme, plus classic themes' content wrappers)
   could not limit the player to the content width — the width:100% button then
   stretched to the full content container (e.g. 1590px) while the post text stayed
   at the ~645px content column. Promoting the host to a block element lets the
   theme's own constrained-layout rules (max-width + auto margins) apply, so the
   player aligns to and matches the content column on any theme. The old player
   had a block-level wrapper <div> that provided this; flattening the DOM removed
   it, so we restore the behaviour on the host itself. */
tts-play-button,
.tts_play_button {
    display: block;          /* so the theme's constrained-layout max-width + auto-margins apply */
    width: 100%;             /* fluid, percentage-based — fills the content column on every viewport; never a fixed px */
    box-sizing: border-box;  /* padding/border included in the 100%, so it can't overflow its container */
    /* No max-width here on purpose: the theme's own content-width (responsive,
       e.g. --wp--style--global--content-size, which shrinks on small screens)
       governs the cap. On themes with no cap the player simply fills its
       container — still 100%/fluid, never a hardcoded pixel width. */
}

/* New-player layout */
.tts__listent_content {
    box-sizing: border-box;
    transition: all 0.5s ease-in-out;
}

.tts__listent_content:hover {
    background-color: var(--tts-hover-bg, #f0f0f0) !important;
    /* set colour on the button so SVG presets using currentColor inherit it */
    color: var(--tts-hover-color, #000000) !important;
}

.tts__listent_content:hover .tts_button_label,
.tts__listent_content:hover span {
    color: var(--tts-hover-color, #000000);
}

.tts__listent_content:hover svg polygon,
.tts__listent_content:hover svg path {
    fill: var(--tts-hover-color, #000000);
}

.tts__listent_content:hover svg[stroke] path,
.tts__listent_content:hover svg[stroke] line,
.tts__listent_content:hover .tts-settings-icon svg path,
.tts__listent_content:hover .tts-settings-icon svg circle {
    stroke: var(--tts-hover-color, #000000);
}

.tts__listent_content .tts_button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.tts__listent_content .tts_button_label {
    display: inline-block;
}

.tts__listent_content svg,
.tts-button-left svg {
    display: var(--tts-icon-display, inline-block);
    flex: 0 0 auto;
}

/* Focus: no ring (matches the prior shadow-DOM behaviour). */
.tts__listent_content:focus,
.tts__listent_content:focus-visible,
.tts__listent_content:focus-within {
    outline: none !important;
    box-shadow: none !important;
}

/* Settings (gear) icon — shown while playing/paused. */
.tts__listent_content .tts-settings-icon {
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.tts__listent_content .tts-settings-icon:hover,
.tts__listent_content .tts-settings-icon:focus-visible {
    background-color: rgba(255, 255, 255, 0.2);
}

.tts__listent_content .tts-settings-icon:focus-visible {
    outline: 2px solid var(--tts-color, #ffffff);
    outline-offset: 2px;
}

/* Screen-reader-only live region (direct child of the host element). */
.tts-play-button .tts-sr-only,
tts-play-button .tts-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ------------------------------------------------------------------ *
 * TTS-249 (I2): Settings modal (the gear → language/voice/speed panel).
 * Previously injected as an inline <style id="tts-settings-modal-styles">
 * into <head> by JS; moved here so no plugin <style> tag ships in the page.
 * The dynamic colours are applied as --tts-modal-* custom properties on the
 * modal container at runtime (see setProperty in the JS), which these rules
 * consume.
 * ------------------------------------------------------------------ */

/* Settings Modal Backdrop */
.tts__settings-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}
.tts__settings-modal-backdrop.tts__modal-visible {
    opacity: 1;
    pointer-events: auto;
}
.tts__settings-modal-backdrop.tts__modal-closing {
    opacity: 0;
    pointer-events: none;
}

/* Settings Modal Container */
.tts__settings-modal {
    width: 90%;
    max-width: 400px;
    background-color: var(--tts-modal-bg, #184c53);
    color: var(--tts-modal-color, #ffffff);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transform: scale(0.8);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
    position: relative;
}
.tts__settings-modal-backdrop.tts__modal-visible .tts__settings-modal {
    transform: scale(1);
    opacity: 1;
}
.tts__settings-modal-backdrop.tts__modal-closing .tts__settings-modal {
    transform: scale(0.8);
    opacity: 0;
}

/* Modal Header */
.tts__settings-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.tts__settings-modal-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}
.tts__settings-modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}
.tts__settings-modal-close:hover,
.tts__settings-modal-close:focus-visible {
    background-color: rgba(255, 255, 255, 0.12);
}
.tts__settings-modal-close:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

/* Settings Select */
.tts__settings-select {
    outline: none;
}
.tts__settings-select:focus {
    border-color: rgba(255, 255, 255, 0.5) !important;
}

/* Custom Slider Styles */
.tts__settings-slider {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: rgba(255, 255, 255, 0.19);
    border-radius: 3px;
    outline: none;
}
.tts__settings-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--tts-modal-color, #ffffff);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.tts__settings-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}
.tts__settings-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--tts-modal-color, #ffffff);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: transform 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.tts__settings-slider::-moz-range-thumb:hover {
    transform: scale(1.15);
}
.tts__settings-slider::-moz-range-track {
    background: rgba(255, 255, 255, 0.19);
    height: 6px;
    border-radius: 3px;
}

/* Setting row styles */
.tts__setting-row {
    margin-bottom: 16px;
}
.tts__setting-row:last-child {
    margin-bottom: 0;
}
.tts__setting-label {
    display: block;
    font-size: 12px;
    margin-bottom: 6px;
    opacity: 0.85;
}
.tts__setting-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}
.tts__setting-value {
    font-size: 12px;
    font-weight: 600;
}

/* Loader for settings */
.tts__settings-loader-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    z-index: 10;
}
.tts__settings-loader {
    width: 28px;
    height: 28px;
    border: 3px solid var(--tts-modal-bg, #184c53);
    border-top: 3px solid var(--tts-modal-color, #ffffff);
    border-radius: 50%;
    animation: tts-modal-spin 0.8s linear infinite;
}
@keyframes tts-modal-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Mute button */
.tts__mute-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: background-color 0.2s ease;
}
.tts__mute-btn:hover {
    background-color: rgba(255, 255, 255, 0.12);
}
.tts__mute-btn:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
    background-color: rgba(255, 255, 255, 0.12);
}
.tts__mute-btn.muted {
    background-color: rgba(255, 255, 255, 0.12);
}
.tts__settings-slider:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}
.tts__settings-select:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}