:root {
    --bg-abyss: #050816;
    --bg-night: #0a1024;
    --bg-panel: rgba(8, 14, 33, 0.72);
    --bg-panel-strong: rgba(9, 16, 38, 0.9);
    --line-soft: rgba(173, 216, 255, 0.16);
    --line-bright: rgba(111, 231, 255, 0.36);
    --cyan: #6fe7ff;
    --cyan-strong: #00c8ff;
    --violet: #8e7dff;
    --gold: #f7ca7c;
    --text: #f4f8ff;
    --text-soft: #ccd9f3;
    --text-dim: #8191b5;
    --shadow-deep: 0 30px 80px rgba(0, 0, 0, 0.45);
    --shadow-cyan: 0 0 40px rgba(0, 200, 255, 0.18);
    --radius-lg: 28px;
    --radius-md: 18px;
    --max-width: 1280px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 10% 20%, rgba(0, 200, 255, 0.14), transparent 28%),
        radial-gradient(circle at 82% 16%, rgba(142, 125, 255, 0.16), transparent 26%),
        radial-gradient(circle at 50% 78%, rgba(247, 202, 124, 0.08), transparent 24%),
        linear-gradient(180deg, #030611 0%, #091023 42%, #040814 100%);
    line-height: 1.7;
    overflow-x: hidden;
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -3;
}

body::before {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, black 45%, transparent 90%);
}

body::after {
    opacity: 0.22;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.52) 72%);
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
}

button,
a,
input,
select {
    -webkit-tap-highlight-color: transparent;
}

.page-shell {
    width: min(var(--max-width), calc(100% - 32px));
    margin: 0 auto;
}

.sky-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    background: linear-gradient(180deg, rgba(4, 8, 20, 0.92), rgba(4, 8, 20, 0.6));
    border-bottom: 1px solid var(--line-soft);
}

.site-header__inner {
    width: min(var(--max-width), calc(100% - 28px));
    margin: 0 auto;
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-brand {
    text-decoration: none;
    display: inline-flex;
    flex-direction: column;
    gap: 2px;
}

.site-brand__eyebrow {
    font-size: 10px;
    color: var(--cyan);
    letter-spacing: 0.34em;
    text-transform: uppercase;
}

.site-brand__name {
    font-family: 'Cinzel', serif;
    font-size: 22px;
    letter-spacing: 0.34em;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
}

.site-nav a {
    text-decoration: none;
    color: var(--text-soft);
    font-size: 13px;
    letter-spacing: 0.14em;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: 200ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
    color: var(--text);
    border-color: var(--line-bright);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: var(--shadow-cyan);
}

.hero-panel,
.glass-panel,
.instrument-panel {
    position: relative;
    background: linear-gradient(180deg, rgba(10, 18, 42, 0.82), rgba(8, 14, 33, 0.68));
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-deep);
    overflow: hidden;
}

.hero-panel::before,
.glass-panel::before,
.instrument-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 18%, transparent 82%, rgba(111, 231, 255, 0.08));
    pointer-events: none;
}

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: var(--cyan);
}

.kicker::before {
    content: "";
    width: 42px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan));
}

.section-heading {
    margin-bottom: 24px;
}

.section-heading h2,
.section-heading h1 {
    margin: 12px 0 10px;
    font-family: 'Cinzel', 'Noto Serif SC', serif;
    font-weight: 600;
    letter-spacing: 0.08em;
    line-height: 1.1;
}

.section-heading p {
    margin: 0;
    max-width: 760px;
    color: var(--text-soft);
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.metric-card {
    padding: 18px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.metric-card__label {
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.metric-card__value {
    margin-top: 10px;
    font-family: 'Cinzel', serif;
    font-size: clamp(28px, 3vw, 40px);
    color: var(--text);
}

.metric-card__hint {
    margin-top: 8px;
    color: var(--text-soft);
    font-size: 13px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 12px;
    color: var(--text-soft);
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.button-primary,
.button-secondary,
.button-ghost {
    appearance: none;
    border: none;
    text-decoration: none;
    cursor: pointer;
    border-radius: 999px;
    padding: 14px 22px;
    font-size: 14px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    transition: 220ms ease;
}

.button-primary {
    color: #02111a;
    background: linear-gradient(135deg, var(--cyan), #d8fbff);
    box-shadow: 0 12px 32px rgba(111, 231, 255, 0.28);
}

.button-secondary,
.button-ghost {
    color: var(--text);
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.button-primary:hover,
.button-secondary:hover,
.button-ghost:hover {
    transform: translateY(-2px);
}

.world-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
}

.world-card {
    grid-column: span 4;
    min-height: 240px;
    padding: 24px;
    text-decoration: none;
    border-radius: 26px;
    background: linear-gradient(180deg, rgba(10, 18, 42, 0.84), rgba(7, 12, 28, 0.78));
    border: 1px solid var(--line-soft);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-deep);
    transition: 260ms ease;
}

.world-card:hover {
    transform: translateY(-6px) scale(1.01);
    border-color: var(--line-bright);
    box-shadow: var(--shadow-deep), var(--shadow-cyan);
}

.world-card__orbit {
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 1px solid rgba(111, 231, 255, 0.12);
    right: -80px;
    top: -60px;
}

.world-card__orbit::after {
    content: "";
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--cyan);
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(111, 231, 255, 0.45);
}

.world-card__icon {
    font-size: 32px;
}

.world-card h3 {
    margin: 20px 0 10px;
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
}

.world-card p {
    margin: 0;
    color: var(--text-soft);
}

.world-card__meta {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.world-chip {
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-soft);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    padding: 6px 10px;
}

.footer {
    padding: 40px 0 70px;
    color: var(--text-dim);
    text-align: center;
}

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }
}

@media (max-width: 1100px) {
    .metric-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .world-card {
        grid-column: span 6;
    }
}

@media (max-width: 760px) {
    .site-header__inner {
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .site-brand__name {
        font-size: 18px;
        letter-spacing: 0.24em;
    }

    .site-nav {
        justify-content: flex-start;
        width: 100%;
        gap: 8px;
        overflow-x: auto;
        padding-bottom: 2px;
        scrollbar-width: none;
    }

    .site-nav::-webkit-scrollbar {
        display: none;
    }

    .site-nav a {
        white-space: nowrap;
        flex: 0 0 auto;
        padding: 9px 12px;
        font-size: 12px;
    }

    .metric-grid {
        grid-template-columns: 1fr;
    }

    .world-card {
        grid-column: span 12;
    }

    .page-shell {
        width: min(var(--max-width), calc(100% - 20px));
    }
}