/**
 * Shabrang Experience Styles
 * Immersive reading experience for GenZ
 */

/* =============================================================================
   READING PROGRESS BAR
   ============================================================================= */

#reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    z-index: 9999;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--teal, #2D5A6B), var(--gold, #C9A227));
    transition: width 0.1s ease-out;
}

.progress-text {
    display: none; /* Hidden by default - progress shown in bar instead */
}

/* =============================================================================
   READING TIME
   ============================================================================= */

.reading-time {
    text-align: center;
    font-size: 0.85em;
    color: var(--accent1, #2D5A6B);
    margin-bottom: 30px;
    font-family: 'Helvetica Neue', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =============================================================================
   THEME SWITCHER
   ============================================================================= */

#theme-switcher {
    display: none; /* Hidden - integrate into header or menu instead */
}

.theme-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    background: transparent;
    transition: all 0.2s;
}

.theme-btn:hover {
    transform: scale(1.1);
}

.theme-btn.active {
    background: var(--gold, #C9A227);
    color: white;
}

/* Theme Variations */
body.theme-dark {
    --background: #1a1a1d;
    --text: #e8e8e8;
    --heading: #ffffff;
}

body.theme-dark .container {
    background: #252528;
    border-color: #333;
}

body.theme-sepia {
    --background: #f4ecd8;
    --text: #5c4b37;
}

body.theme-sepia .container {
    background: #faf6eb;
}

/* =============================================================================
   AMBIENT CONTROLS
   ============================================================================= */

#ambient-controls {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.ambient-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--gold, #C9A227);
    background: var(--background, #F5E6C8);
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.ambient-btn:hover {
    transform: scale(1.1);
    background: var(--gold, #C9A227);
}

.ambient-panel {
    position: absolute;
    bottom: 60px;
    right: 0;
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.15);
    min-width: 200px;
    transition: all 0.3s;
}

.ambient-panel.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
}

.ambient-option {
    margin-bottom: 15px;
}

.ambient-option label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    color: #666;
}

.ambient-option input[type="range"] {
    width: 100%;
    accent-color: var(--gold, #C9A227);
}

.ambient-option select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: white;
}

/* =============================================================================
   SCROLL ANIMATIONS
   ============================================================================= */

.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================================================
   RESTORE PROMPT
   ============================================================================= */

.restore-prompt {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    text-align: center;
}

.restore-prompt p {
    margin: 0 0 15px 0;
    font-size: 14px;
}

.restore-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-restore, .btn-start-over {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.btn-restore {
    background: var(--gold, #C9A227);
    color: white;
}

.btn-start-over {
    background: #eee;
    color: #333;
}

.btn-restore:hover, .btn-start-over:hover {
    transform: translateY(-2px);
}

/* =============================================================================
   GLASS PANEL UTILITY
   ============================================================================= */

.glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(201, 162, 39, 0.3);
}

/* =============================================================================
   ANIMATIONS
   ============================================================================= */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s ease-out forwards;
}

/* =============================================================================
   MOBILE RESPONSIVE
   ============================================================================= */

@media (max-width: 768px) {
    #theme-switcher {
        bottom: 80px;
        left: 10px;
    }

    #ambient-controls {
        bottom: 80px;
        right: 10px;
    }

    .ambient-panel {
        right: -50px;
        min-width: 180px;
    }

    .progress-text {
        display: none;
    }

    .restore-prompt {
        left: 20px;
        right: 20px;
        transform: none;
    }
}

/* =============================================================================
   AUDIO PLAYER BAR (TOP)
   ============================================================================= */

.audio-player-bar {
    position: sticky;
    top: 51px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--gold, #C9A227);
    z-index: 999;
    padding: 12px 20px;
}

.audio-player-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 15px;
}

.audio-play-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--accent1, #2D5A6B);
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: var(--accent1, #2D5A6B);
    flex-shrink: 0;
}

.audio-play-btn:hover {
    background: var(--accent1, #2D5A6B);
    color: white;
}

.audio-play-btn.playing svg {
    display: none;
}

.audio-play-btn.playing::after {
    content: '';
    width: 12px;
    height: 12px;
    background: currentColor;
    border-radius: 2px;
}

.audio-progress-container {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.audio-progress {
    flex: 1;
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    cursor: pointer;
    overflow: hidden;
}

.audio-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent1, #2D5A6B), var(--gold, #C9A227));
    border-radius: 3px;
    transition: width 0.1s ease-out;
}

.audio-time {
    font-size: 12px;
    font-family: 'Helvetica Neue', sans-serif;
    color: #666;
    min-width: 90px;
    text-align: right;
}

.audio-speed-controls {
    display: flex;
    gap: 4px;
}

.speed-btn {
    padding: 6px 10px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s;
    color: #666;
}

.speed-btn:hover {
    border-color: var(--gold, #C9A227);
}

.speed-btn.active {
    background: var(--gold, #C9A227);
    border-color: var(--gold, #C9A227);
    color: white;
}

/* =============================================================================
   NAV LOGO & HOME LOGO
   ============================================================================= */

.nav-logo {
    height: 32px;
    width: auto;
    border: none !important;
}

.home-logo {
    height: 80px;
    width: auto;
    margin-bottom: 15px;
    border: none !important;
}

.home-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.nav-home {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-home .label {
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 1px;
    color: var(--text, #1A1A18);
}

/* =============================================================================
   TTS CONTROLS (FALLBACK)
   ============================================================================= */

.tts-controls {
    display: none; /* Hidden - using audio-player-bar instead */
}

.tts-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--accent1, #2D5A6B);
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: var(--accent1, #2D5A6B);
}

.tts-btn:hover {
    background: var(--accent1, #2D5A6B);
    color: white;
}

.tts-speed {
    display: flex;
    gap: 5px;
    margin-left: 20px;
    padding-left: 20px;
    border-left: 1px solid #ddd;
}

.tts-speed-btn {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.tts-speed-btn:hover {
    border-color: var(--gold, #C9A227);
}

.tts-speed-btn.active {
    background: var(--gold, #C9A227);
    border-color: var(--gold, #C9A227);
    color: white;
}

.tts-speaking {
    background: linear-gradient(90deg,
        rgba(201, 162, 39, 0.1) 0%,
        rgba(201, 162, 39, 0.2) 50%,
        rgba(201, 162, 39, 0.1) 100%);
    border-radius: 4px;
    padding: 10px;
    margin: -10px;
    transition: background 0.3s;
}

/* =============================================================================
   LIGHTBOX
   ============================================================================= */

.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    transition: opacity 0.3s;
}

.lightbox-overlay.active {
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border: none;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 32px;
    cursor: pointer;
    padding: 10px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-caption {
    color: white;
    text-align: center;
    margin-top: 15px;
    font-style: italic;
}

/* =============================================================================
   LANGUAGE SWITCHER
   ============================================================================= */

.lang-switcher {
    position: fixed;
    top: 70px;
    right: 20px;
    z-index: 1001;
}

.lang-switcher select {
    padding: 8px 15px;
    border: 1px solid var(--gold, #C9A227);
    border-radius: 20px;
    background: white;
    font-size: 12px;
    cursor: pointer;
    outline: none;
}

.lang-switcher select:hover {
    border-color: var(--accent1, #2D5A6B);
}

.lang-warning {
    padding: 15px;
    background: var(--accent2, #8B3535);
    color: white;
    text-align: center;
    border-radius: 8px;
    margin-bottom: 20px;
}

/* =============================================================================
   SOCIAL FEATURES - HIGHLIGHTS & ANNOTATIONS
   ============================================================================= */

.user-highlight {
    background: linear-gradient(180deg, transparent 60%, rgba(201, 162, 39, 0.4) 60%);
    cursor: pointer;
    transition: background 0.2s;
}

.user-highlight:hover {
    background: linear-gradient(180deg, transparent 50%, rgba(201, 162, 39, 0.6) 50%);
}

.annotations-toggle {
    position: fixed;
    bottom: 140px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--accent1, #2D5A6B);
    background: white;
    cursor: pointer;
    font-size: 20px;
    z-index: 1000;
    transition: all 0.2s;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.annotations-toggle:hover {
    background: var(--accent1, #2D5A6B);
    color: white;
}

.annotations-panel {
    position: fixed;
    top: 0;
    right: -350px;
    width: 350px;
    height: 100vh;
    background: white;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.15);
    z-index: 2000;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.annotations-panel.open {
    right: 0;
}

.annotations-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--gold, #C9A227);
    background: var(--background, #F5E6C8);
}

.annotations-header h3 {
    margin: 0;
    font-size: 1em;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.annotations-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
    color: var(--text, #1A1A18);
}

.annotations-list {
    padding: 20px;
}

.annotation-item {
    padding: 15px;
    margin-bottom: 15px;
    background: #f9f9f9;
    border-radius: 8px;
    border-left: 3px solid var(--gold, #C9A227);
}

.annotation-quote {
    font-style: italic;
    font-size: 0.9em;
    color: #666;
    margin-bottom: 10px;
}

.annotation-note {
    font-size: 0.95em;
}

.annotation-date {
    font-size: 0.75em;
    color: #999;
    margin-top: 10px;
}

.no-annotations {
    text-align: center;
    color: #999;
    font-style: italic;
}

/* =============================================================================
   MOBILE RESPONSIVE - AUDIO PLAYER & CONTROLS
   ============================================================================= */

@media (max-width: 768px) {
    /* Audio Player */
    .audio-player-bar {
        padding: 8px 12px;
        top: 50px;
    }

    .audio-player-content {
        gap: 8px;
    }

    .audio-play-btn {
        width: 36px;
        height: 36px;
    }

    .audio-speed-controls {
        display: none;
    }

    .audio-time {
        font-size: 10px;
        min-width: 60px;
    }

    .audio-progress {
        height: 4px;
    }

    /* Nav Logo */
    .nav-logo {
        height: 26px;
    }

    .nav-home .label {
        display: none;
    }

    .home-logo {
        height: 60px;
    }

    /* Hide floating controls on mobile - they overlap */
    .lang-switcher,
    .annotations-toggle,
    #theme-switcher,
    #ambient-controls {
        display: none;
    }

    /* Progress text */
    .progress-text {
        display: none;
    }

    /* Sticky header adjustments */
    .sticky-header {
        padding: 8px 12px;
    }

    .header-actions {
        gap: 6px;
    }

    .nav-arrow {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    /* Container adjustments */
    .container {
        padding-top: 120px;
    }
}

/* Very small screens */
@media (max-width: 480px) {
    .audio-player-bar {
        padding: 6px 10px;
    }

    .audio-play-btn {
        width: 32px;
        height: 32px;
    }

    .audio-play-btn svg {
        width: 16px;
        height: 16px;
    }

    .audio-time {
        display: none;
    }

    .nav-logo {
        height: 22px;
    }

    .home-logo {
        height: 50px;
    }

    h1 {
        font-size: 1.5em;
        letter-spacing: 1px;
    }
}