/* nfth.ing - Deep Ocean Vault Aesthetic */

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

:root {
    --obsidian: #0a0c10;
    --obsidian-mid: #161a22;
    --obsidian-light: #0c0e12;
    --turquoise: #5eead4;
    --turquoise-bright: #2dd4bf;
    --gold: #c9943a;
    --amber: #eab308;
    --slate: #6b7280;
    --light: #e2e5eb;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--obsidian);
    color: var(--light);
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
#nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, rgba(201, 148, 58, 0.15), rgba(201, 148, 58, 0.05));
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 148, 58, 0.3);
    padding: 0.8rem 2rem;
}

.nav-inner {
    display: flex;
    justify-content: center;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-link {
    color: var(--gold);
    text-decoration: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.nav-link:hover {
    color: var(--turquoise);
    text-shadow: 0 0 12px rgba(94, 234, 212, 0.5);
}

/* Scenes - General */
.scene {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Scene 1: Marble Surface / Vault */
.scene-vault {
    background:
        radial-gradient(ellipse at 20% 30%, #1c2130 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, #1c2130 0%, transparent 40%),
        linear-gradient(37deg, rgba(201, 148, 58, 0.08) 0%, transparent 2%),
        linear-gradient(142deg, rgba(201, 148, 58, 0.06) 0%, transparent 1.5%),
        linear-gradient(215deg, rgba(201, 148, 58, 0.07) 0%, transparent 3%),
        linear-gradient(320deg, rgba(201, 148, 58, 0.05) 0%, transparent 2%),
        radial-gradient(ellipse at 50% 50%, var(--obsidian-mid) 0%, var(--obsidian) 100%);
    filter: contrast(1.3) brightness(0.9);
}

.marble-texture {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(28, 33, 48, 0.8) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 80%, rgba(28, 33, 48, 0.6) 0%, transparent 50%),
        conic-gradient(from 45deg at 40% 60%, transparent 0deg, rgba(201, 148, 58, 0.04) 10deg, transparent 20deg),
        conic-gradient(from 200deg at 60% 30%, transparent 0deg, rgba(201, 148, 58, 0.03) 8deg, transparent 16deg);
    pointer-events: none;
}

.vault-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: clamp(2.5rem, 7vw, 6rem);
    letter-spacing: 0.04em;
    line-height: 1.08;
    color: var(--light);
    text-shadow: 0 0 40px rgba(94, 234, 212, 0.2);
    position: relative;
    z-index: 2;
}

.fissure {
    position: absolute;
    bottom: 15%;
    left: 0;
    width: 100%;
    height: 30%;
    z-index: 1;
    opacity: 0;
    transition: opacity 1.5s ease;
}

.fissure.visible {
    opacity: 1;
}

.fissure-path {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    filter: drop-shadow(0 0 8px rgba(94, 234, 212, 0.6));
}

.fissure.visible .fissure-path {
    animation: drawFissure 3s ease forwards;
}

.fissure-branch-1, .fissure-branch-2, .fissure-branch-3 {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    filter: drop-shadow(0 0 4px rgba(94, 234, 212, 0.4));
}

.fissure.visible .fissure-branch-1 {
    animation: drawFissure 1.5s ease 1.5s forwards;
}

.fissure.visible .fissure-branch-2 {
    animation: drawFissure 1.5s ease 2s forwards;
}

.fissure.visible .fissure-branch-3 {
    animation: drawFissure 1.5s ease 2.3s forwards;
}

@keyframes drawFissure {
    to { stroke-dashoffset: 0; }
}

/* Scene 2: Crack Transition */
.scene-crack {
    background: var(--obsidian);
    min-height: 60vh;
}

.marble-top-half,
.marble-bottom-half {
    position: absolute;
    left: 0;
    right: 0;
    height: 50%;
    background:
        radial-gradient(ellipse at 50% 50%, var(--obsidian-mid), var(--obsidian));
    transition: transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.marble-top-half {
    top: 0;
    border-bottom: 1px solid rgba(94, 234, 212, 0.2);
}

.marble-bottom-half {
    bottom: 0;
    border-top: 1px solid rgba(94, 234, 212, 0.2);
}

.scene-crack.split .marble-top-half {
    transform: translateY(-30%);
}

.scene-crack.split .marble-bottom-half {
    transform: translateY(30%);
}

.bioluminescent-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(94, 234, 212, 0.15), transparent 70%);
    opacity: 0;
    transition: opacity 1.5s ease 0.5s;
}

.scene-crack.split .bioluminescent-glow {
    opacity: 1;
}

/* Scene 3: Specimen Hall */
.scene-specimens {
    background:
        radial-gradient(ellipse at 50% 0%, rgba(94, 234, 212, 0.03) 0%, transparent 50%),
        var(--obsidian);
    padding: 8rem 2rem;
    min-height: auto;
}

.specimen-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.specimen-card {
    background:
        linear-gradient(145deg, rgba(22, 26, 34, 0.9), rgba(10, 12, 16, 0.95));
    border: 1px solid rgba(94, 234, 212, 0.1);
    border-radius: 4px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transform: translateY(40px);
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                opacity 0.8s ease,
                border-color 0.4s ease,
                box-shadow 0.4s ease;
}

.specimen-card.revealed {
    transform: translateY(0);
    opacity: 1;
}

.specimen-card:hover {
    border-color: rgba(94, 234, 212, 0.4);
    box-shadow: 0 8px 40px rgba(94, 234, 212, 0.08), inset 0 0 30px rgba(94, 234, 212, 0.02);
}

.card-image {
    width: 100%;
    height: 200px;
    background:
        radial-gradient(circle at 30% 40%, rgba(94, 234, 212, 0.1), transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(201, 148, 58, 0.08), transparent 40%),
        linear-gradient(135deg, var(--obsidian-mid), var(--obsidian-light));
    border-radius: 2px;
    margin-bottom: 1.2rem;
    position: relative;
    overflow: hidden;
}

.card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 40%, rgba(94, 234, 212, 0.05) 50%, transparent 60%);
    animation: shimmer 4s ease-in-out infinite;
}

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

.card-1 .card-image {
    background:
        radial-gradient(circle at 50% 50%, rgba(94, 234, 212, 0.15), transparent 60%),
        conic-gradient(from 0deg at 50% 50%, rgba(94, 234, 212, 0.1), transparent, rgba(201, 148, 58, 0.1), transparent),
        var(--obsidian-mid);
}

.card-2 .card-image {
    background:
        radial-gradient(ellipse at 30% 70%, rgba(45, 212, 191, 0.12), transparent 50%),
        linear-gradient(180deg, var(--obsidian-mid), rgba(94, 234, 212, 0.05)),
        var(--obsidian-light);
}

.card-3 .card-image {
    background:
        repeating-conic-gradient(from 0deg at 50% 50%, rgba(201, 148, 58, 0.05) 0deg 30deg, transparent 30deg 60deg),
        radial-gradient(circle, rgba(234, 179, 8, 0.1), transparent 60%),
        var(--obsidian-mid);
}

.card-4 .card-image {
    background:
        radial-gradient(circle at 20% 30%, rgba(94, 234, 212, 0.2), transparent 30%),
        radial-gradient(circle at 80% 70%, rgba(94, 234, 212, 0.15), transparent 25%),
        radial-gradient(circle at 50% 50%, rgba(45, 212, 191, 0.08), transparent 50%),
        var(--obsidian-mid);
}

.card-5 .card-image {
    background:
        linear-gradient(0deg, rgba(201, 148, 58, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 148, 58, 0.04) 1px, transparent 1px),
        radial-gradient(ellipse at 50% 50%, rgba(107, 114, 128, 0.2), transparent 70%),
        var(--obsidian-mid);
    background-size: 20px 8px, 30px 30px, 100% 100%, 100% 100%;
}

.card-6 .card-image {
    background:
        linear-gradient(35deg, rgba(201, 148, 58, 0.12) 0%, transparent 3%),
        linear-gradient(145deg, rgba(201, 148, 58, 0.08) 0%, transparent 2%),
        radial-gradient(circle at 50% 50%, rgba(234, 179, 8, 0.1), transparent 50%),
        var(--obsidian-mid);
}

.card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: var(--light);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.card-desc {
    font-size: 0.9rem;
    color: var(--slate);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.brass-label {
    border-top: 1px solid rgba(201, 148, 58, 0.3);
    padding-top: 0.8rem;
}

.label-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--gold);
    letter-spacing: 0.08em;
    opacity: 0.8;
}

/* Scene 4: Deep Reef */
.scene-reef {
    background:
        radial-gradient(ellipse at 50% 80%, rgba(94, 234, 212, 0.05), transparent 60%),
        linear-gradient(180deg, var(--obsidian) 0%, #070910 100%);
    padding: 6rem 2rem;
}

#particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.fish-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.fish {
    position: absolute;
    width: 40px;
    height: 20px;
    opacity: 0.6;
    transition: transform 0.1s linear;
}

.fish-body {
    fill: var(--turquoise);
    filter: drop-shadow(0 0 6px rgba(94, 234, 212, 0.4));
}

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

.reef-line {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: clamp(1.5rem, 3.5vw, 2.8rem);
    line-height: 1.4;
    color: var(--light);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reef-line.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Scene 5: Provenance Ledger */
.scene-ledger {
    background: var(--obsidian);
    padding: 8rem 2rem;
    min-height: auto;
}

.ledger-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    align-items: start;
}

@media (max-width: 768px) {
    .ledger-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

.ledger-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--light);
    margin-bottom: 1.5rem;
    letter-spacing: 0.04em;
}

.ledger-prose p {
    color: var(--slate);
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.ledger-stream {
    background: linear-gradient(145deg, rgba(22, 26, 34, 0.8), rgba(10, 12, 16, 0.9));
    border: 1px solid rgba(94, 234, 212, 0.1);
    border-radius: 4px;
    padding: 1.5rem;
    max-height: 500px;
    overflow: hidden;
    position: relative;
}

.ledger-stream::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(transparent, var(--obsidian));
    pointer-events: none;
}

.stream-inner {
    animation: scrollLedger 30s linear infinite;
}

@keyframes scrollLedger {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50%); }
}

.stream-entry {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--turquoise);
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(94, 234, 212, 0.05);
    letter-spacing: 0.04em;
    opacity: 0.7;
}

.stream-entry:nth-child(5n) {
    color: var(--gold);
    opacity: 0.5;
}