:root {
  --bg: #0a0a0a;
  --panel: #141414;
  --text: #f5f5f5;
  --muted: #b7b7b7;
  --accent: #ffd400;
  --line: #2a2a2a;
  --max: 920px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 10, 0.95);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.2px;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.hero, .content {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 22px;
}

.hero {
  min-height: 68vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  font-size: 0.82rem;
}

h1 {
  font-size: clamp(2.7rem, 8vw, 5.6rem);
  line-height: 0.98;
  margin: 14px 0 20px;
  letter-spacing: -2px;
}

h2 {
  margin-top: 42px;
  font-size: 1.6rem;
}

.lead {
  max-width: 700px;
  font-size: 1.18rem;
  color: var(--muted);
}

.card-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px 72px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 18px;
  padding: 22px;
}

.card h3 { margin-top: 0; }

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #111;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 12px;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.content {
  padding-top: 44px;
}

.content h1 {
  font-size: clamp(2.3rem, 6vw, 4rem);
  letter-spacing: -1.4px;
}

.content p, .content li {
  color: #d6d6d6;
}

.notice {
  border-left: 4px solid var(--accent);
  padding: 12px 16px;
  background: #151515;
  margin: 24px 0;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  max-width: var(--max);
  margin: 0 auto;
  padding: 26px 22px 42px;
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .card-grid { grid-template-columns: 1fr; }
  .hero { min-height: 58vh; padding-top: 48px; }
}