/**
 * Tutorials Block - Frontend Styles
 * 
 * @package WebtronDocs
 */

/* ==========================================================================
   CSS Variables & Base
   ========================================================================== */

.webtron-tutorials {
    --tutorials-accent: #0073aa;
    --tutorials-controls-bg: rgba(0, 0, 0, 0.85);
    --tutorials-sidebar-bg: #1a1a1a;
    --tutorials-radius: 8px;
    --tutorials-sidebar-width: 320px;
    
    position: relative;
    width: 100%;
    max-width: 1920px; /* Max-width for ultrawide displays */
    margin-left: auto;
    margin-right: auto;
    background: var(--tutorials-sidebar-bg);
    border-radius: var(--tutorials-radius);
    overflow: hidden;
}

/* ==========================================================================
   Layout Modes
   ========================================================================== */

/* Sidebar Right (default) */
.webtron-tutorials.layout-sidebar-right {
    display: grid;
    grid-template-columns: 1fr var(--tutorials-sidebar-width);
}

/* Sidebar Left */
.webtron-tutorials.layout-sidebar-left {
    display: grid;
    grid-template-columns: var(--tutorials-sidebar-width) 1fr;
}

.webtron-tutorials.layout-sidebar-left .tutorials-sidebar {
    order: -1;
}

/* Sidebar Bottom */
.webtron-tutorials.layout-sidebar-bottom {
    display: flex;
    flex-direction: column;
}

.webtron-tutorials.layout-sidebar-bottom .tutorials-sidebar {
    max-height: 300px;
}

/* No Sidebar */
.webtron-tutorials.layout-no-sidebar .tutorials-sidebar {
    display: none;
}

/* ==========================================================================
   Video Player Area
   ========================================================================== */

.tutorials-player {
    background: #000;
    display: flex;
    flex-direction: column;
}

.tutorials-video-container {
    position: relative;
    flex: 1;
}

.tutorials-video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    background: #000;
}

.tutorials-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Video info below player */
.tutorials-video-info {
    padding: 16px 20px;
    background: var(--tutorials-sidebar-bg);
}

.tutorials-video-title {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 4px;
    line-height: 1.3;
}

.tutorials-video-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin: 0;
    line-height: 1.5;
}

/* ==========================================================================
   Big Play Button
   ========================================================================== */

.tutorials-big-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.tutorials-big-play svg {
    width: 40px;
    height: 40px;
    margin-left: 4px;
}

.tutorials-big-play:hover {
    background: var(--tutorials-accent);
    transform: translate(-50%, -50%) scale(1.1);
}

.webtron-tutorials.is-playing .tutorials-big-play {
    display: none;
}

/* ==========================================================================
   Loading Spinner
   ========================================================================== */

.tutorials-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.tutorials-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--tutorials-accent);
    border-radius: 50%;
    animation: tutorials-spin 0.8s linear infinite;
}

@keyframes tutorials-spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Controls Bar
   ========================================================================== */

.tutorials-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(transparent, var(--tutorials-controls-bg));
    transition: opacity 0.3s ease;
    z-index: 20;
}

.webtron-tutorials.controls-hidden .tutorials-controls {
    opacity: 0;
    pointer-events: none;
}

.webtron-tutorials.controls-hidden:hover .tutorials-controls {
    opacity: 1;
    pointer-events: auto;
}

/* Control buttons */
.tutorials-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
    padding: 0;
    flex-shrink: 0;
}

.tutorials-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tutorials-btn svg {
    width: 20px;
    height: 20px;
}

/* ==========================================================================
   Progress Bar
   ========================================================================== */

.tutorials-progress-container {
    flex: 1;
    position: relative;
    height: 36px;
    display: flex;
    align-items: center;
    cursor: pointer;
}

.tutorials-progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    position: relative;
    transition: height 0.1s;
}

.tutorials-progress-container:hover .tutorials-progress-bar {
    height: 6px;
}

.tutorials-progress-buffered {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    width: 0;
}

.tutorials-progress-played {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--tutorials-accent);
    border-radius: 2px;
    width: 0;
}

/* Chapter markers */
.tutorials-progress-chapters {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.tutorials-chapter-marker {
    position: absolute;
    top: 0;
    width: 3px;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 1px;
    transform: translateX(-50%);
}

/* Progress tooltip */
.tutorials-progress-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    pointer-events: none;
    margin-bottom: 8px;
    display: none;
}

/* ==========================================================================
   Time Display
   ========================================================================== */

.tutorials-time {
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.tutorials-time-separator {
    opacity: 0.5;
}

/* ==========================================================================
   Volume Control
   ========================================================================== */

.tutorials-volume {
    display: flex;
    align-items: center;
    gap: 4px;
}

.tutorials-volume-slider-container {
    width: 0;
    overflow: hidden;
    transition: width 0.2s ease;
}

.tutorials-volume:hover .tutorials-volume-slider-container {
    width: 80px;
}

.tutorials-volume-slider {
    width: 80px;
    height: 4px;
    appearance: none;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.tutorials-volume-slider::-webkit-slider-thumb {
    appearance: none;
    width: 12px;
    height: 12px;
    background: #fff;
    border-radius: 50%;
    cursor: pointer;
}

/* ==========================================================================
   Speed & Quality Menus
   ========================================================================== */

.tutorials-speed,
.tutorials-quality {
    position: relative;
}

.tutorials-speed-btn,
.tutorials-quality-btn {
    width: auto;
    padding: 0 8px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.tutorials-speed-menu,
.tutorials-quality-menu {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 8px;
    background: var(--tutorials-controls-bg);
    border-radius: 6px;
    padding: 6px;
    flex-direction: column;
    min-width: 100px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tutorials-speed-menu button,
.tutorials-quality-menu button {
    display: block;
    width: 100%;
    padding: 10px 12px;
    border: none;
    background: transparent;
    color: #fff;
    font-size: 13px;
    text-align: center;
    cursor: pointer;
    border-radius: 4px;
}

.tutorials-speed-menu button:hover,
.tutorials-quality-menu button:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tutorials-speed-menu button.active,
.tutorials-quality-menu button.active {
    color: var(--tutorials-accent);
    font-weight: 600;
}

.tutorials-hd-badge {
    font-size: 9px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #ff6b6b, #ff8e53);
    padding: 2px 5px;
    border-radius: 3px;
    margin-left: 6px;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.tutorials-sidebar {
    background: var(--tutorials-sidebar-bg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.webtron-tutorials.layout-sidebar-left .tutorials-sidebar {
    border-left: none;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.webtron-tutorials.layout-sidebar-bottom .tutorials-sidebar {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Sidebar header */
.tutorials-sidebar-header {
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tutorials-sidebar-title {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 4px;
}

.tutorials-sidebar-description {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    margin: 0 0 8px;
    line-height: 1.4;
}

.tutorials-sidebar-meta {
    display: flex;
    gap: 12px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
}

/* Toggle button */
.tutorials-toggle-playlist {
    display: none;
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    justify-content: space-between;
    align-items: center;
}

.webtron-tutorials.is-collapsible .tutorials-toggle-playlist {
    display: flex;
}

.tutorials-toggle-playlist[aria-expanded="false"] svg {
    transform: rotate(180deg);
}

/* ==========================================================================
   Playlist Items
   ========================================================================== */

.tutorials-playlist {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.tutorials-playlist.is-collapsed {
    display: none;
}

.tutorials-playlist-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    width: 100%;
    border: none;
    background: transparent;
    color: #fff;
    text-align: left;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s;
    position: relative;
}

.tutorials-playlist-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.tutorials-playlist-item.is-active {
    background: rgba(255, 255, 255, 0.12);
}

.tutorials-playlist-item.is-completed .tutorials-item-check {
    display: flex;
}

/* Item number */
.tutorials-item-number {
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    font-weight: 600;
    min-width: 20px;
    text-align: center;
}

.tutorials-playlist-item.is-active .tutorials-item-number {
    color: var(--tutorials-accent);
}

/* Play icon */
.tutorials-item-play-icon {
    display: none;
    color: var(--tutorials-accent);
}

.tutorials-playlist-item.is-active .tutorials-item-play-icon {
    display: block;
}

.tutorials-playlist-item.is-active .tutorials-item-number {
    display: none;
}

.tutorials-item-play-icon svg {
    width: 16px;
    height: 16px;
}

/* Thumbnail */
.tutorials-item-thumb {
    width: 80px;
    height: 45px;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.1);
}

.tutorials-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Content */
.tutorials-item-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tutorials-item-title {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tutorials-item-duration {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.5);
}

/* Progress bar in playlist item */
.tutorials-item-progress {
    position: absolute;
    bottom: 0;
    left: 12px;
    right: 12px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1px;
}

.tutorials-item-progress-bar {
    height: 100%;
    background: var(--tutorials-accent);
    border-radius: 1px;
    width: 0;
    transition: width 0.3s ease;
}

/* Completed check */
.tutorials-item-check {
    display: none;
    color: #4caf50;
    flex-shrink: 0;
}

.tutorials-item-check svg {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   Chapters in Sidebar
   ========================================================================== */

.tutorials-chapters {
    display: none;
    padding-left: 32px;
    padding-bottom: 8px;
}

.tutorials-chapters.is-visible {
    display: block;
}

.tutorials-chapter-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    text-align: left;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.tutorials-chapter-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.tutorials-chapter-item.is-active {
    color: var(--tutorials-accent);
    background: rgba(0, 115, 170, 0.1);
}

.tutorials-chapter-time {
    color: rgba(255, 255, 255, 0.4);
    font-family: monospace;
    font-size: 11px;
    min-width: 45px;
}

.tutorials-chapter-item.is-active .tutorials-chapter-time {
    color: var(--tutorials-accent);
}

.tutorials-chapter-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ==========================================================================
   Fullscreen Mode
   ========================================================================== */

.webtron-tutorials:fullscreen {
    border-radius: 0;
}

.webtron-tutorials:fullscreen .tutorials-video-wrapper {
    padding-bottom: 0;
    height: 100%;
}

.webtron-tutorials:fullscreen .tutorials-icon-fullscreen-enter {
    display: none;
}

.webtron-tutorials:fullscreen .tutorials-icon-fullscreen-exit {
    display: block !important;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
    .webtron-tutorials.layout-sidebar-right,
    .webtron-tutorials.layout-sidebar-left {
        grid-template-columns: 1fr;
    }
    
    .tutorials-sidebar {
        border-left: none !important;
        border-right: none !important;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        max-height: 280px;
    }
    
    .tutorials-item-thumb {
        width: 60px;
        height: 34px;
    }
}

@media (max-width: 600px) {
    .tutorials-controls {
        padding: 8px 12px;
        gap: 4px;
    }
    
    .tutorials-btn {
        width: 32px;
        height: 32px;
    }
    
    .tutorials-time {
        font-size: 11px;
    }
    
    .tutorials-video-info {
        padding: 12px 16px;
    }
    
    .tutorials-video-title {
        font-size: 16px;
    }
    
    .tutorials-sidebar-header {
        padding: 12px;
    }
    
    .tutorials-item-thumb {
        display: none;
    }
    
    /* Hide some controls on mobile */
    .tutorials-speed,
    .tutorials-volume-slider-container {
        display: none;
    }
}

/* ==========================================================================
   Control Style Variants
   ========================================================================== */

/* Minimal */
.tutorials-controls.controls-minimal .tutorials-time,
.tutorials-controls.controls-minimal .tutorials-volume,
.tutorials-controls.controls-minimal .tutorials-speed {
    display: none;
}

/* Full */
.tutorials-controls.controls-full {
    padding: 16px 20px;
    gap: 12px;
}

.tutorials-controls.controls-full .tutorials-btn {
    width: 44px;
    height: 44px;
}

.tutorials-controls.controls-full .tutorials-btn svg {
    width: 24px;
    height: 24px;
}

/* ==========================================================================
   Transcript Search
   ========================================================================== */

.tutorials-transcript-search {
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tutorials-search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 8px 12px;
    gap: 8px;
}

.tutorials-search-icon {
    flex-shrink: 0;
    color: rgba(255, 255, 255, 0.5);
}

.tutorials-search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 14px;
}

.tutorials-search-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.tutorials-search-clear {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    padding: 2px;
    border-radius: 50%;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.tutorials-search-clear:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.tutorials-search-results {
    margin-top: 8px;
}

.tutorials-search-results-header {
    padding: 8px 0;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.tutorials-search-count {
    font-weight: 500;
}

.tutorials-search-results-list {
    max-height: 300px;
    overflow-y: auto;
}

.tutorials-search-result {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    border-radius: 6px;
    margin-bottom: 4px;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.15s ease;
}

.tutorials-search-result:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tutorials-search-result-time {
    font-size: 11px;
    font-weight: 600;
    color: var(--tutorials-accent);
    font-family: ui-monospace, 'SF Mono', monospace;
}

.tutorials-search-result-video {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

.tutorials-search-result-text {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 4px;
    line-height: 1.4;
}

.tutorials-search-result-text mark {
    background: rgba(255, 213, 0, 0.4);
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

/* ==========================================================================
   Transcript Panel in Tutorials
   ========================================================================== */

.tutorials-transcript-panel {
    margin-top: 1rem;
}

.tutorials-transcript-panel .webtron-video-transcript__details {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.tutorials-transcript-panel .webtron-video-transcript__summary {
    color: #fff;
}

.tutorials-transcript-panel .webtron-video-transcript__summary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tutorials-transcript-panel .webtron-video-transcript__content {
    background: rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.1);
}

.tutorials-transcript-panel .webtron-video-transcript__text,
.tutorials-transcript-panel .webtron-video-transcript__plain {
    color: rgba(255, 255, 255, 0.9);
}

.tutorials-transcript-panel .webtron-video-transcript__segment:hover {
    background: rgba(255, 255, 255, 0.05);
}

.tutorials-transcript-panel .webtron-video-transcript__segment.is-active {
    background: rgba(var(--tutorials-accent-rgb, 0, 115, 170), 0.2);
    border-left-color: var(--tutorials-accent);
}

/* ==========================================================================
   Variant Toggle Buttons (Mode Switcher)
   Positioned below the video player to avoid obstructing content
   ========================================================================== */

.tutorials-variants {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.tutorials-variant-btn {
    --variant-color: #0073aa;
    
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid #000;
    border-radius: 6px;
    background: transparent;
    color: #000;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tutorials-variant-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.tutorials-variant-btn.active {
    background: var(--variant-color);
    color: #fff;
    border-color: var(--variant-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.tutorials-variant-btn i {
    font-size: 14px;
}

/* Fullscreen variant positioning - move back to overlay */
.webtron-tutorials:fullscreen .tutorials-variants,
.webtron-tutorials:-webkit-full-screen .tutorials-variants {
    position: absolute;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 6px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 20;
}

.webtron-tutorials:fullscreen .tutorials-variant-btn,
.webtron-tutorials:-webkit-full-screen .tutorials-variant-btn {
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.8);
}

.webtron-tutorials:fullscreen .tutorials-variant-btn:hover,
.webtron-tutorials:-webkit-full-screen .tutorials-variant-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.webtron-tutorials:fullscreen .tutorials-variant-btn.active,
.webtron-tutorials:-webkit-full-screen .tutorials-variant-btn.active {
    border-color: var(--variant-color);
    color: #fff;
}

@media (max-width: 600px) {
    .tutorials-variants {
        gap: 4px;
    }
    
    .tutorials-variant-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .tutorials-variant-btn i {
        font-size: 12px;
    }
}