/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --deep-navy: #0d1f2d;
    --teal: #2a6f8e;
    --sage: #d4ddd6;
    --brass: #b08d57;
    --muted-sage: #c4d3cc;
    --pale-sage: #e8ede4;
    --dark-teal: #1b3a4b;
    --warm-taupe: #8c7a6b;
    --mid-teal: #5b8a91;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 300;
    background-color: var(--deep-navy);
    color: var(--sage);
    overflow-x: hidden;
    line-height: 1.6;
}

/* === TYPOGRAPHY === */
h2, h3, .kanji-reveal {
    font-family: 'DM Serif Display', serif;
    font-weight: 400;
    letter-spacing: -0.04em;
}

.caveat-annotation {
    font-family: 'Caveat', cursive;
    font-weight: 400;
}

.entry-code, .card-number {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 300;
}

/* === ZONES === */
.zone {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* === ZONE 1: THE CHAMBER === */
#chamber {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(170deg, var(--deep-navy) 0%, var(--dark-teal) 50%, var(--deep-navy) 100%);
}

.chamber-content {
    text-align: center;
    z-index: 2;
    position: relative;
}

.kanji-reveal {
    font-size: clamp(5rem, 12vw, 10rem);
    color: var(--pale-sage);
    display: flex;
    gap: 0.1em;
    justify-content: center;
}

.kanji {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    text-shadow: 0 0 60px rgba(176, 141, 87, 0.3);
}

.kanji.revealed {
    opacity: 1;
    transform: translateY(0);
}

.kanji:hover {
    color: var(--brass);
    text-shadow: 0 0 80px rgba(176, 141, 87, 0.5);
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.chamber-subtitle {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 300;
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--muted-sage);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-top: 1rem;
    opacity: 0;
    transition: opacity 1s ease 0.8s;
}

.chamber-subtitle.revealed {
    opacity: 1;
}

.brass-line {
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--brass), transparent);
    margin: 2rem auto;
    opacity: 0;
    transition: opacity 1s ease 1.2s;
}

.brass-line.revealed {
    opacity: 1;
}

/* Wave container */
.wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    z-index: 1;
}

.wave-container-top {
    bottom: auto;
    top: 0;
}

.wave-svg {
    width: 100%;
    height: 100%;
    display: block;
}

.wave-svg-top {
    transform: rotate(0);
}

.wave-layer-1 { fill: rgba(42, 111, 142, 0.6); }
.wave-layer-2 { fill: rgba(91, 138, 145, 0.4); }
.wave-layer-3 { fill: rgba(196, 211, 204, 0.2); }
.wave-layer-4 { fill: rgba(176, 141, 87, 0.15); }

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 220px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 3;
    opacity: 0;
    animation: fadeInUp 1s ease 2s forwards;
}

.scroll-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 300;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--brass);
    display: block;
    margin-bottom: 0.5rem;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 1.5px solid var(--brass);
    border-bottom: 1.5px solid var(--brass);
    transform: rotate(45deg);
    margin: 0 auto;
    animation: bobDown 2s ease-in-out infinite;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translate(-50%, 10px); }
    to { opacity: 0.7; transform: translate(-50%, 0); }
}

@keyframes bobDown {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(6px); }
}

/* === ZONE 2: THE ARENA === */
#arena {
    background-color: var(--deep-navy);
    padding: clamp(4rem, 8vw, 8rem) clamp(2rem, 5vw, 6rem);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--pale-sage);
    text-align: center;
    margin-bottom: 0.25rem;
}

.section-tagline {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    color: var(--brass);
    text-align: center;
    margin-bottom: 3rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1100px;
    width: 100%;
}

.argument-card {
    background: linear-gradient(145deg, rgba(27, 58, 75, 0.6), rgba(13, 31, 45, 0.8));
    border: 1px solid rgba(176, 141, 87, 0.2);
    border-radius: 2px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.argument-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--brass);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.argument-card:hover {
    transform: translateY(-4px);
    border-color: rgba(176, 141, 87, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(176, 141, 87, 0.1);
}

.argument-card:hover::before {
    opacity: 1;
}

.card-tall { grid-row: span 2; }
.card-wide { grid-column: span 2; }

.card-number {
    font-size: 0.75rem;
    color: var(--brass);
    opacity: 0.6;
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.card-title {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: var(--pale-sage);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.card-body {
    font-size: 0.95rem;
    color: var(--muted-sage);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(176, 141, 87, 0.15);
}

.card-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 300;
    color: var(--teal);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.card-symbol {
    font-size: 1.2rem;
    color: var(--brass);
    opacity: 0.4;
}

/* === ZONE 3: THE RECORD === */
#record {
    background: linear-gradient(180deg, var(--deep-navy) 0%, var(--dark-teal) 100%);
    padding: clamp(4rem, 8vw, 8rem) clamp(2rem, 5vw, 6rem);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.transcript-timeline {
    position: relative;
    max-width: 700px;
    width: 100%;
    margin-top: 2rem;
}

.timeline-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--brass), rgba(176, 141, 87, 0.1));
}

.transcript-entry {
    position: relative;
    padding-left: 60px;
    padding-bottom: 3rem;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.transcript-entry.visible {
    opacity: 1;
    transform: translateX(0);
}

.entry-marker {
    position: absolute;
    left: 12px;
    top: 4px;
    width: 17px;
    height: 17px;
    border: 2px solid var(--brass);
    background: var(--deep-navy);
    border-radius: 50%;
    transition: background 0.3s ease;
}

.transcript-entry.visible .entry-marker {
    background: var(--brass);
}

.entry-label {
    font-family: 'DM Serif Display', serif;
    font-size: 1.4rem;
    color: var(--pale-sage);
    display: block;
    margin-bottom: 0.5rem;
}

.entry-text {
    font-size: 0.95rem;
    color: var(--muted-sage);
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.entry-code {
    font-size: 0.8rem;
    color: var(--teal);
    opacity: 0.7;
    letter-spacing: 0.05em;
}

/* === ZONE 4: THE STUDY === */
#study {
    background: var(--deep-navy);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: clamp(4rem, 8vw, 8rem) clamp(2rem, 5vw, 6rem);
    padding-top: 220px;
}

.study-content {
    text-align: center;
    max-width: 700px;
    z-index: 2;
    position: relative;
}

.study-quote {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--pale-sage);
    line-height: 1.8;
    font-style: italic;
    position: relative;
    padding: 2rem 0;
}

.quote-mark {
    font-size: 3rem;
    color: var(--brass);
    opacity: 0.4;
    line-height: 0;
    vertical-align: -0.3em;
}

.study-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.footer-kanji {
    font-family: 'DM Serif Display', serif;
    font-size: 1.5rem;
    color: var(--brass);
    opacity: 0.5;
}

.footer-domain {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sage);
}

.footer-year {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--warm-taupe);
    letter-spacing: 0.15em;
}

.teak-grain {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        var(--warm-taupe) 0px,
        var(--warm-taupe) 2px,
        transparent 2px,
        transparent 8px
    );
    opacity: 0.3;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
    .card-tall { grid-row: span 1; }
    .card-wide { grid-column: span 1; }

    .study-footer {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}