:root {
    --bg: #0e1418;
    --bg-soft: #151e24;
    --text: #e8f0ed;
    --text-soft: #b8c8c2;
    --line: rgba(143, 212, 191, 0.25);
    --mint: #8fd4bf;
    --amber: #f0a44b;
    --panel: rgba(21, 30, 36, 0.82);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: radial-gradient(circle at 10% -10%, rgba(143, 212, 191, 0.14), transparent 35%),
        radial-gradient(circle at 90% 20%, rgba(240, 164, 75, 0.11), transparent 30%),
        var(--bg);
    color: var(--text);
    font-family: "Sora", sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

.bg-grid {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    background-image:
        linear-gradient(rgba(143, 212, 191, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(143, 212, 191, 0.08) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, black 25%, transparent 80%);
}

.site-header {
    max-width: 1120px;
    margin: 0 auto;
    padding: 1.4rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.brand {
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.main-nav {
    display: flex;
    gap: 1rem;
}

.main-nav a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.92rem;
    padding: 0.35rem 0.6rem;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: 180ms ease;
}

.main-nav a:hover {
    border-color: var(--line);
    color: var(--text);
}

main {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0.3rem 1.2rem 2.5rem;
    display: grid;
    gap: 1.1rem;
}

.hero,
.cards,
.markers,
.timeline-section,
.community-section,
.library {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: clamp(1.1rem, 2.3vw, 2rem);
    backdrop-filter: blur(2px);
}

.kicker {
    color: var(--amber);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

h1,
h2,
h3 {
    font-family: "Source Serif 4", serif;
    line-height: 1.18;
}

h1 {
    font-size: clamp(2rem, 6vw, 4rem);
    max-width: 14ch;
    margin-bottom: 0.8rem;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.4rem);
}

.hero-copy {
    color: var(--text-soft);
    max-width: 70ch;
    margin-bottom: 1.2rem;
}

.quote {
    border-left: 4px solid var(--mint);
    padding: 0.7rem 0 0.7rem 1rem;
}

.quote p {
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    margin-bottom: 0.2rem;
}

.quote cite {
    color: var(--text-soft);
    font-size: 0.9rem;
    font-style: normal;
}

.quote cite a {
    color: var(--mint);
}

.definition {
    margin-top: 1rem;
}

.definition p {
    color: var(--text);
    margin-bottom: 0.4rem;
}

.definition ul {
    list-style: none;
    display: grid;
    gap: 0.35rem;
}

.definition li {
    color: var(--text-soft);
    padding-left: 1rem;
    position: relative;
}

.definition li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--amber);
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
}

.card {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem;
}

.card h2 {
    font-size: 1.2rem;
    margin-bottom: 0.4rem;
}

.card p {
    color: var(--text-soft);
    font-size: 0.95rem;
}

.section-head {
    margin-bottom: 1rem;
}

.marker-list {
    list-style: none;
    display: grid;
    gap: 0.7rem;
    margin-bottom: 0.65rem;
}

.marker-list li {
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    padding: 0.8rem 0.9rem;
    color: var(--text-soft);
}

.marker-list a {
    color: var(--mint);
    margin-left: 0.35rem;
}

.timeline {
    list-style: none;
    display: grid;
    gap: 0.85rem;
}

.timeline li {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 0.8rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.9rem;
    background: rgba(255, 255, 255, 0.02);
}

.timeline time {
    color: var(--amber);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding-top: 0.15rem;
}

.timeline h3 {
    font-size: 1.18rem;
    margin-bottom: 0.2rem;
}

.timeline p {
    color: var(--text-soft);
    margin-bottom: 0.3rem;
}

.timeline a,
.library a {
    color: var(--mint);
    text-decoration-thickness: 1px;
}

.roadmap {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
}

.roadmap article {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.95rem;
    background: rgba(255, 255, 255, 0.02);
}

.phase {
    color: var(--amber);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.roadmap h3 {
    font-size: 1.18rem;
    margin-bottom: 0.25rem;
}

.roadmap p {
    color: var(--text-soft);
    font-size: 0.95rem;
}

.library ul {
    margin: 0.35rem 0 0.8rem;
    list-style: none;
    display: grid;
    gap: 0.45rem;
}

.library li {
    padding-left: 1rem;
    position: relative;
}

.library li::before {
    content: "↳";
    position: absolute;
    left: 0;
    color: var(--amber);
}

.note {
    color: var(--text-soft);
    font-size: 0.92rem;
}

.site-footer {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.2rem 2rem;
    color: var(--text-soft);
    font-size: 0.88rem;
    text-align: center;
}

.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 300ms ease, transform 300ms ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 920px) {
    .cards,
    .roadmap {
        grid-template-columns: 1fr;
    }

    .timeline li {
        grid-template-columns: 1fr;
    }

    .main-nav {
        display: none;
    }
}