:root {
  color-scheme: dark;
  --bg: #050b13;
  --surface: #0b1624;
  --surface-2: #102135;
  --text: #f4f7fb;
  --muted: #a8b5c6;
  --blue: #2d8cff;
  --blue-bright: #63adff;
  --gold: #ffc928;
  --line: rgba(255, 255, 255, 0.11);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
a { color: inherit; }
.site-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 74px; padding: 12px max(24px, calc((100vw - var(--max)) / 2)); border-bottom: 1px solid var(--line); background: rgba(5, 11, 19, 0.88); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; letter-spacing: -0.02em; }
.brand img { width: 46px; height: 46px; border-radius: 12px; }
nav { display: flex; gap: 24px; }
nav a, .footer-links a { color: var(--muted); text-decoration: none; font-weight: 650; }
nav a:hover, .footer-links a:hover { color: var(--text); }
.hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr); align-items: center; gap: 70px; min-height: 690px; max-width: var(--max); margin: auto; padding: 90px 24px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -30% 48% 40% -30%; background: radial-gradient(circle, rgba(45, 140, 255, 0.19), transparent 68%); pointer-events: none; }
.eyebrow { margin: 0 0 14px; color: var(--gold); font-size: 0.77rem; font-weight: 850; letter-spacing: 0.16em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.12; }
h1 { max-width: 820px; margin: 0; font-size: clamp(3rem, 6vw, 5.75rem); letter-spacing: -0.06em; }
h2 { margin: 0; font-size: clamp(2.15rem, 4vw, 3.65rem); letter-spacing: -0.045em; }
h3 { margin: 0 0 10px; }
.hero-summary { max-width: 760px; margin: 28px 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 12px 22px; border: 1px solid transparent; border-radius: 14px; text-decoration: none; font-weight: 800; }
.button.primary { color: #06101c; background: linear-gradient(135deg, var(--gold), #ff9d00); box-shadow: 0 14px 44px rgba(255, 187, 0, 0.18); }
.button.secondary { border-color: var(--line); background: rgba(255, 255, 255, 0.04); }
.button.is-disabled { cursor: not-allowed; filter: grayscale(0.4); opacity: 0.72; }
.release-notice { color: var(--muted); font-size: 0.9rem; }
.hero-art { position: relative; display: grid; place-items: center; }
.hero-art img { position: relative; width: min(100%, 480px); border-radius: 27%; filter: drop-shadow(0 30px 55px rgba(0, 0, 0, 0.58)); }
.logo-glow { position: absolute; width: 76%; aspect-ratio: 1; border-radius: 50%; background: rgba(45, 140, 255, 0.4); filter: blur(80px); }
.section { max-width: var(--max); margin: auto; padding: 100px 24px; border-top: 1px solid var(--line); }
.section-heading { max-width: 780px; margin-bottom: 46px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-grid article { min-height: 240px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, rgba(16, 33, 53, 0.96), rgba(8, 18, 30, 0.96)); }
.feature-grid span { display: block; margin-bottom: 44px; color: var(--blue-bright); font-weight: 850; }
.feature-grid p, .release-section > div > p, .responsible-section p, footer p { color: var(--muted); }
.release-section { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: 30px 56px; }
.release-card { display: grid; grid-template-columns: 1fr 1fr; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); }
.release-card div { min-width: 0; padding: 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.release-card .wide { grid-column: 1 / -1; }
.release-card dt { color: var(--muted); font-size: 0.78rem; font-weight: 750; text-transform: uppercase; }
.release-card dd { margin: 7px 0 0; overflow-wrap: anywhere; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.86rem; }
.installation-note { grid-column: 2; padding: 22px 24px; border-left: 3px solid var(--gold); background: rgba(255, 201, 40, 0.07); }
.release-actions { grid-column: 2; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 4px; }
.release-actions p { margin: 4px 0 0; color: var(--muted); }
.responsible-section { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; }
footer { display: grid; grid-template-columns: 1fr auto; gap: 30px; max-width: var(--max); margin: auto; padding: 58px 24px; border-top: 1px solid var(--line); }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.copyright { grid-column: 1 / -1; font-size: 0.84rem; }

@media (max-width: 850px) {
  nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 64px; }
  .hero-art { grid-row: 1; }
  .hero-art img { width: min(68vw, 340px); }
  .feature-grid { grid-template-columns: 1fr; }
  .release-section, .responsible-section { grid-template-columns: 1fr; }
  .installation-note, .release-actions { grid-column: 1; }
  .release-actions { align-items: flex-start; flex-direction: column; }
  footer { grid-template-columns: 1fr; }
  .copyright { grid-column: 1; }
}

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