/* ============================================
   THE ODYSSEY — BOOK FORMAT IMMERSIVE READER
   Two-column parchment with inline illustrations
   ============================================ */

:root {
    --bg-deep: #08090c;
    --bg-surface: #0f1115;
    --border: rgba(255, 255, 255, 0.06);
    --border-gold: rgba(212, 175, 55, 0.2);

    --text-ui: #e8e4dc;
    --text-secondary: #a09888;
    --text-muted: #6b5f50;

    --gold: #d4af37;
    --gold-light: #f0d060;
    --gold-dim: rgba(212, 175, 55, 0.15);

    --parchment: #fdfaf3;
    --parchment-text: #2b2318;

    --font-body: 'Cormorant Garamond', 'Georgia', serif;
    --font-ui: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;

    --player-height: 68px;
    --top-bar-height: 52px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-ui);
    background: var(--bg-deep);
    color: var(--text-ui);
    height: 100vh;
    height: 100dvh; /* account for mobile browser chrome */
    overflow: hidden;
    overscroll-behavior: none; /* no pull-to-refresh while swiping pages */
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

/* ============================================
   TOP BAR
   ============================================ */

.top-bar {
    height: var(--top-bar-height);
    background: rgba(8, 9, 12, 0.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 50;
}

.top-bar-left {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.top-author {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--gold);
    text-transform: uppercase;
}

.top-title {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 600;
    font-style: italic;
    color: var(--text-ui);
}

.top-bar-center {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.chapter-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--gold);
}

.chapter-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.top-bar-right {
    display: flex;
    align-items: center;
}

.page-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================
   BOOK AREA — Full-screen parchment book
   ============================================ */

.book-area {
    position: relative;
    height: calc(100vh - var(--top-bar-height) - var(--player-height));
    height: calc(100dvh - var(--top-bar-height) - var(--player-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 80px;
    background:
        radial-gradient(ellipse at 50% 30%, rgba(212, 175, 55, 0.03) 0%, transparent 60%),
        var(--bg-deep);
}

/* Page navigation */
.page-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--gold);
    cursor: pointer;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    z-index: 10;
    transition: all 0.25s ease;
    font-family: var(--font-body);
}

.page-nav:hover {
    background: var(--gold);
    color: var(--bg-deep);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

.page-prev { left: 16px; }
.page-next { right: 16px; }

.page-nav.disabled {
    opacity: 0.2;
    pointer-events: none;
}

/* Book container — parchment */
.book-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 1100px;
    background: var(--parchment);
    border-radius: 4px;
    box-shadow:
        inset 0 0 50px rgba(166, 146, 115, 0.25),
        0 8px 40px rgba(0, 0, 0, 0.5),
        0 2px 8px rgba(0, 0, 0, 0.3);
    padding: 48px 56px;
}

/* Spine shadow */
.book-spine {
    position: absolute;
    top: 0;
    left: 50%;
    width: 60px;
    height: 100%;
    transform: translateX(-50%);
    background: linear-gradient(to right,
        rgba(255,255,255,0) 0%,
        rgba(0,0,0,0.03) 35%,
        rgba(0,0,0,0.1) 50%,
        rgba(255,255,255,0.4) 65%,
        rgba(255,255,255,0) 100%);
    pointer-events: none;
    z-index: 5;
}

/* Reader viewport */
.reader-viewport {
    width: 100%;
    height: 100%;
    overflow-y: hidden;
    overflow-x: hidden;
    position: relative;
    scroll-behavior: smooth;
    padding-right: 0;
}

/* Custom scrollbar for reader */
.reader-viewport::-webkit-scrollbar { width: 8px; height: 8px; }
.reader-viewport::-webkit-scrollbar-track { background: transparent; }
.reader-viewport::-webkit-scrollbar-thumb { background: rgba(166, 146, 115, 0.4); border-radius: 4px; }

/* Reader text — two-column layout (column-width set by JS for pagination) */
.reader-text {
    height: 100%;
    column-gap: 80px;
    column-fill: auto;
    margin: 0;
    max-width: none;
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 1.75;
    color: var(--parchment-text);
    text-align: justify;
    padding-bottom: 0;
}

/* Paragraphs */
.reader-text p {
    margin: 0;
    text-indent: 2em;
    padding-bottom: 0.6em;
    transition: background 0.4s ease, border-left-color 0.4s ease;
    border-left: 3px solid transparent;
    padding-left: 0;
    border-radius: 2px;
    cursor: pointer;
}

.reader-text p:first-of-type {
    text-indent: 0;
}

/* Active paragraph */
.reader-text p.active {
    background: linear-gradient(90deg,
        rgba(212, 175, 55, 0.12),
        rgba(212, 175, 55, 0.06),
        transparent
    );
    border-left-color: var(--gold);
    padding-left: 10px;
}

.reader-text p:hover {
    background: rgba(212, 175, 55, 0.04);
}

/* Speaker tags */
.speaker-tag {
    display: inline-block;
    font-family: var(--font-ui);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #8b6914;
    background: rgba(212, 175, 55, 0.15);
    padding: 1px 7px;
    border-radius: 3px;
    margin-bottom: 3px;
    text-indent: 0;
}

/* ============================================
   INLINE ILLUSTRATIONS — within column flow
   ============================================ */

.inline-illustration {
    break-inside: avoid;
    margin: 0.8em 0 1em 0;
    padding: 0;
    text-indent: 0;
}

.inline-illustration img,
.inline-illustration video {
    width: 100%;
    max-height: 45vh;
    object-fit: contain;
    display: block;
    border-radius: 6px;
    box-shadow:
        0 6px 20px rgba(0, 0, 0, 0.15),
        0 2px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(166, 146, 115, 0.3);
}

.inline-illustration .ill-caption {
    text-align: center;
    font-family: var(--font-ui);
    font-size: 0.6rem;
    color: #9a8a6e;
    margin-top: 6px;
    font-style: italic;
    letter-spacing: 0.02em;
    text-indent: 0;
}

/* Loading state */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 80px 0;
    color: #9a8a6e;
    font-family: var(--font-ui);
    font-size: 0.85rem;
}

.loading-spinner {
    width: 28px;
    height: 28px;
    border: 3px solid rgba(166, 146, 115, 0.3);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   FIXED PLAYER BAR
   ============================================ */

.player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--player-height);
    background: rgba(10, 10, 14, 0.9);
    backdrop-filter: blur(28px) saturate(1.5);
    -webkit-backdrop-filter: blur(28px) saturate(1.5);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.35);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.player-bar-inner {
    width: 100%;
    max-width: 1100px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 14px;
}

/* Transport */
.player-transport {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.player-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.07);
    color: var(--text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s;
    flex-shrink: 0;
}

.player-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-ui);
}

.player-play {
    width: 42px;
    height: 42px;
    font-size: 1rem;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.22), rgba(212, 175, 55, 0.08));
    border-color: rgba(212, 175, 55, 0.28);
    color: var(--gold-light);
    box-shadow: 0 0 14px rgba(212, 175, 55, 0.1);
}

.player-play:hover {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.35), rgba(212, 175, 55, 0.15));
    box-shadow: 0 0 22px rgba(212, 175, 55, 0.25);
    transform: scale(1.05);
}

.player-play.playing {
    animation: glow 2.5s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 14px rgba(212, 175, 55, 0.1); }
    50% { box-shadow: 0 0 26px rgba(212, 175, 55, 0.28); }
}

/* Progress */
.player-progress-section {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.player-time {
    font-family: 'Consolas', 'SF Mono', monospace;
    font-size: 0.68rem;
    color: var(--text-muted);
    min-width: 38px;
    text-align: center;
    user-select: none;
    flex-shrink: 0;
}

.player-progress-track {
    flex: 1;
    position: relative;
    height: 5px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.07);
}

.player-progress-fill {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
    width: 0%;
    pointer-events: none;
    transition: width 0.1s linear;
}

.player-progress-input {
    position: absolute;
    top: -7px; left: 0;
    width: 100%;
    height: 20px;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
    margin: 0;
    z-index: 2;
}

.player-progress-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
}

.player-progress-input::-webkit-slider-thumb:hover { transform: scale(1.3); }

.player-progress-input::-moz-range-thumb {
    width: 14px; height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.player-progress-input::-moz-range-track {
    background: transparent;
    border: none;
    height: 5px;
}

/* Right Controls */
.player-controls-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.player-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.07);
    color: var(--text-secondary);
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 5px 8px;
    border-radius: 8px;
    cursor: pointer;
    outline: none;
    transition: all 0.2s;
}

.player-select:hover {
    border-color: var(--border-gold);
    background: rgba(255, 255, 255, 0.08);
}

.player-select option {
    background: #16181d;
    color: var(--text-ui);
}

.player-chapter-select { max-width: 170px; }

.volume-icon {
    font-size: 0.85rem;
    cursor: pointer;
    user-select: none;
}

.player-volume {
    -webkit-appearance: none;
    appearance: none;
    width: 60px; height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.08);
    outline: none;
    cursor: pointer;
}

.player-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 11px; height: 11px;
    border-radius: 50%;
    background: var(--text-secondary);
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.player-volume::-moz-range-thumb {
    width: 11px; height: 11px;
    border-radius: 50%;
    background: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.player-volume::-moz-range-track {
    height: 4px; border-radius: 2px;
    background: rgba(255, 255, 255, 0.08);
}

/* ============================================
   SCROLLBAR
   ============================================ */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.1); border-radius: 3px; }

/* ============================================
   MOBILE / PHONE LAYOUT
   Single-column pages, swipe to turn, compact UI
   ============================================ */

@media (max-width: 700px) {
    :root {
        --top-bar-height: 46px;
        --player-height: 60px;
    }

    /* Top bar — keep it to one tidy line */
    .top-bar { padding: 0 12px; }
    .top-author { font-size: 0.55rem; letter-spacing: 0.18em; }
    .top-title { font-size: 0.95rem; }
    .top-bar-center { display: none; }            /* chapter name shown in player */
    .page-info { font-size: 0.68rem; }

    /* Book area — give the text the full width */
    .book-area {
        padding: 8px 6px;
    }

    .book-container {
        max-width: none;
        padding: 20px 16px;
        border-radius: 4px;
    }

    /* No spine in single-column mode */
    .book-spine { display: none; }

    /* Smaller, translucent page arrows (swipe is primary) */
    .page-nav {
        width: 34px;
        height: 34px;
        font-size: 1.1rem;
        background: rgba(0, 0, 0, 0.12);
        opacity: 0.55;
    }
    .page-prev { left: 2px; }
    .page-next { right: 2px; }

    .reader-text {
        font-size: 1.08rem;
        line-height: 1.7;
    }

    .inline-illustration img,
    .inline-illustration video {
        max-height: 32vh;
    }

    /* Player bar — compact single row; drop volume + chapter picker */
    .player-bar {
        padding-bottom: env(safe-area-inset-bottom);
        height: calc(var(--player-height) + env(safe-area-inset-bottom));
    }
    .player-bar-inner {
        padding: 0 10px;
        gap: 8px;
    }
    .player-transport { gap: 4px; }
    .player-btn { width: 30px; height: 30px; font-size: 0.7rem; }
    .player-play { width: 38px; height: 38px; font-size: 0.9rem; }
    .player-progress-section { gap: 6px; }
    .player-time { min-width: 32px; font-size: 0.62rem; }
    .player-chapter-select { display: none; }
    .volume-icon, .player-volume { display: none; }
    .player-select { padding: 4px 6px; font-size: 0.65rem; }
}