@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@300;400;600&family=Instrument+Serif:ital@0;1&family=Outfit:wght@300;400;600&display=swap');

:root {
    --bg: #040608;
    --text: #c8d4e0;
    --text-dim: #5a6a78;
    --accent: #7eb8d4;
    --accent-cold: #a8d8f0;
    --danger: #8b2030;
    --danger-glow: #c43c50;
    --orb: #0a0c14;
    --glass: #1a2838;
    --mono: 'IBM Plex Mono', monospace;
    --serif: 'Instrument Serif', serif;
    --sans: 'Outfit', sans-serif;
    --beat-hue: 200;
    --beat-intensity: 0.3;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.75;
    overflow-x: hidden;
}

#story-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.vignette {
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 35%, rgba(0,0,0,0.75) 100%);
    z-index: 1;
    pointer-events: none;
}

.scanlines {
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.06) 2px, rgba(0,0,0,0.06) 4px);
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1.2s ease;
}

body[data-active-beat="3"] .scanlines,
body[data-active-beat="5"] .scanlines { opacity: 1; }

.progress-rail {
    position: fixed;
    left: 0;
    top: 0;
    width: 3px;
    height: 100vh;
    background: rgba(126, 184, 212, 0.08);
    z-index: 50;
}

.progress-fill {
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--accent-cold), var(--danger-glow));
    transition: height 0.1s linear;
    box-shadow: 0 0 12px rgba(126, 184, 212, 0.4);
}

.beat-markers {
    position: absolute;
    inset: 0;
}

.beat-marker {
    position: absolute;
    left: -4px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid rgba(126, 184, 212, 0.3);
    transform: translateY(-50%);
    transition: all 0.4s ease;
}

.beat-marker.active {
    background: var(--accent-cold);
    border-color: var(--accent-cold);
    box-shadow: 0 0 10px var(--accent-cold);
}

.story-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 32px;
    z-index: 40;
    background: linear-gradient(180deg, rgba(4,6,8,0.9) 0%, transparent 100%);
}

.back-link {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    text-decoration: none;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: color 0.3s;
}

.back-link:hover { color: var(--accent-cold); }

.nav-status {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: color 0.6s ease, text-shadow 0.6s ease;
}

body[data-active-beat="3"] .nav-status,
body[data-active-beat="5"] .nav-status {
    color: var(--danger-glow);
    text-shadow: 0 0 8px rgba(196, 60, 80, 0.5);
}

.story-reader {
    position: relative;
    z-index: 10;
    max-width: 680px;
    margin: 0 auto;
    padding: 120px 28px 160px;
}

.story-header {
    margin-bottom: 80px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease, transform 1s ease;
}

.story-header.visible {
    opacity: 1;
    transform: translateY(0);
}

.record-tag {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 4px;
    color: var(--danger-glow);
    display: block;
    margin-bottom: 20px;
}

h1 {
    font-family: var(--serif);
    font-size: clamp(2.4rem, 7vw, 3.6rem);
    font-weight: 400;
    color: #e8f0f8;
    line-height: 1.1;
    margin-bottom: 12px;
}

.story-subtitle {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.15rem;
    color: var(--text-dim);
    margin-bottom: 36px;
}

.meta-grid {
    display: grid;
    gap: 14px;
    border: 1px solid rgba(126, 184, 212, 0.15);
    padding: 24px;
    background: rgba(10, 14, 20, 0.5);
    backdrop-filter: blur(8px);
}

.meta-grid dt {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 2px;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.meta-grid dd {
    font-size: 0.9rem;
    color: var(--text);
}

.story-section {
    margin-bottom: 72px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.story-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.story-section p {
    margin-bottom: 1.4em;
    font-size: 1.05rem;
}

.story-section .emphasis {
    color: #e0c8cc;
    border-left: 2px solid var(--danger-glow);
    padding-left: 20px;
    margin-left: -22px;
}

.story-section[data-beat="3"] {
    filter: none;
    transition: opacity 0.9s, transform 0.9s, filter 1s;
}

body[data-active-beat="3"] .story-section[data-beat="3"].visible {
    text-shadow: 0 0 1px rgba(196, 60, 80, 0.2);
}

.finale {
    text-align: center;
    padding-top: 40px;
}

.psychic-echo {
    font-family: var(--mono);
    font-size: clamp(0.9rem, 3vw, 1.1rem);
    color: var(--accent-cold);
    letter-spacing: 2px;
    margin: 40px 0;
    padding: 32px;
    border: 1px solid rgba(168, 216, 240, 0.2);
    background: rgba(10, 20, 30, 0.6);
    position: relative;
    overflow: hidden;
}

.psychic-echo::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(168,216,240,0.08), transparent);
    animation: echo-sweep 3s ease-in-out infinite;
}

.psychic-echo span {
    display: inline-block;
    animation: echo-pulse 2.4s ease-in-out infinite;
}

@keyframes echo-sweep {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

@keyframes echo-pulse {
    0%, 100% { opacity: 0.6; filter: blur(0px); }
    50% { opacity: 1; filter: blur(0.5px); text-shadow: 0 0 20px rgba(168,216,240,0.6); }
}

.story-nav {
    gap: 16px;
}

.ledger-sibling {
    margin-left: auto;
    margin-right: 24px;
}

.ledger-variant .record-tag {
    color: #a8c8d8;
    letter-spacing: 3px;
}

.ledger-variant .meta-grid {
    border-color: rgba(168, 200, 216, 0.2);
}

@media (max-width: 600px) {
    .story-reader { padding: 100px 20px 120px; }
    .story-nav { padding: 16px 20px; flex-wrap: wrap; }
    .ledger-sibling { margin-left: 0; margin-right: 0; }
}