/* ═══════════════════════════════════════════
   BBB S3 Recording Playlist — Udemy Style
   SkyLearn360
═══════════════════════════════════════════ */

:root {
    --bbb-primary:    #a435f0;
    --bbb-primary-dk: #8710d8;
    --bbb-accent:     #f59e0b;
    --bbb-dark:       #1c1d1f;
    --bbb-surface:    #2d2f31;
    --bbb-border:     #3e4143;
    --bbb-text:       #f7f8fa;
    --bbb-muted:      #9ca3af;
    --bbb-active-bg:  #3e4143;
    --bbb-radius:     0px;
    --bbb-shadow:     0 2px 16px rgba(0,0,0,0.45);
}

.bbb-playlist-wrap {
    font-family: 'Udemy Sans', 'Segoe UI', system-ui, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
}

/* ── Course Block: side-by-side layout ── */
.bbb-course-block {
    background: var(--bbb-dark);
    border: 1px solid var(--bbb-border);
    overflow: hidden;
    margin-bottom: 40px;
    box-shadow: var(--bbb-shadow);
    display: flex;
    flex-direction: column;
}

/* ── Course Header ── */
.bbb-course-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bbb-surface);
    border-bottom: 1px solid var(--bbb-border);
}

.bbb-course-icon { font-size: 20px; line-height: 1; }

.bbb-course-title {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--bbb-text);
    flex: 1;
}

.bbb-count {
    background: var(--bbb-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

/* ── Main content: player + playlist side by side ── */
.bbb-main-content {
    display: flex;
    flex-direction: row;
    min-height: 400px;
}

/* ── Video Player (left, ~70%) ── */
.bbb-player-wrap {
    flex: 1 1 68%;
    background: #000;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.bbb-video-player {
    width: 100%;
    flex: 1;
    display: block;
    background: #000;
    outline: none;
    max-height: 480px;
    object-fit: contain;
}

.bbb-now-playing {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: #1c1d1f;
    border-top: 1px solid var(--bbb-border);
    font-size: 13px;
    min-height: 40px;
}

.bbb-now-label {
    color: var(--bbb-accent);
    font-weight: 700;
    white-space: nowrap;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bbb-now-title {
    color: var(--bbb-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
}

/* ── Playlist (right sidebar, ~32%) ── */
.bbb-playlist-list {
    flex: 0 0 32%;
    background: var(--bbb-surface);
    border-left: 1px solid var(--bbb-border);
    overflow-y: auto;
    max-height: 520px;
    scrollbar-width: thin;
    scrollbar-color: var(--bbb-border) transparent;
}

.bbb-playlist-list::-webkit-scrollbar { width: 5px; }
.bbb-playlist-list::-webkit-scrollbar-track { background: transparent; }
.bbb-playlist-list::-webkit-scrollbar-thumb { background: var(--bbb-border); border-radius: 3px; }

/* Playlist header label */
.bbb-playlist-header {
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--bbb-muted);
    border-bottom: 1px solid var(--bbb-border);
    background: #26282a;
    position: sticky;
    top: 0;
    z-index: 1;
}

/* ── Playlist Item ── */
.bbb-playlist-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    cursor: pointer;
    border-bottom: 1px solid var(--bbb-border);
    transition: background 0.12s ease;
    position: relative;
}

.bbb-playlist-item:last-child { border-bottom: none; }

.bbb-playlist-item:hover { background: rgba(255,255,255,0.05); }

.bbb-playlist-item.active {
    background: var(--bbb-active-bg);
    border-left: 3px solid var(--bbb-primary);
}

.bbb-item-num {
    color: var(--bbb-muted);
    font-size: 11px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

.bbb-item-icon {
    color: var(--bbb-primary);
    font-size: 13px;
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

.bbb-playlist-item.active .bbb-item-icon {
    color: var(--bbb-accent);
    animation: bbb-pulse 1.5s ease-in-out infinite;
}

@keyframes bbb-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.35; }
}

.bbb-item-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bbb-item-label {
    color: var(--bbb-text);
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
}

.bbb-playlist-item.active .bbb-item-label {
    color: #fff;
    font-weight: 600;
}

.bbb-item-meta {
    font-size: 11px;
    color: var(--bbb-muted);
}

/* ── Download Button ── */
.bbb-download-btn {
    color: var(--bbb-muted);
    text-decoration: none;
    font-size: 14px;
    padding: 4px 6px;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
    opacity: 0;
    pointer-events: none;
    flex-shrink: 0;
}

.bbb-playlist-item:hover .bbb-download-btn {
    opacity: 1;
    pointer-events: auto;
}

.bbb-download-btn:hover {
    color: var(--bbb-accent);
    background: rgba(245,158,11,0.12);
}

/* ── Progress bar under item (Udemy style) ── */
.bbb-progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--bbb-primary);
    width: 0%;
    transition: width 0.3s;
}

/* ── No videos ── */
.bbb-no-videos {
    color: var(--bbb-muted);
    font-style: italic;
    padding: 20px;
}

/* ── Responsive: stack on mobile ── */
@media (max-width: 768px) {
    .bbb-main-content {
        flex-direction: column;
    }
    .bbb-playlist-list {
        flex: 1 1 auto;
        border-left: none;
        border-top: 1px solid var(--bbb-border);
        max-height: 300px;
    }
    .bbb-course-title  { font-size: 14px; }
    .bbb-playlist-item { padding: 10px 12px; }
    .bbb-item-label    { font-size: 12px; }
    .bbb-download-btn  { opacity: 1; pointer-events: auto; }
}