:root {
  --bg: #0f1420;
  --surface: #182033;
  --text: #e8ecf5;
  --muted: #9aa6bf;
  --accent: #6aa9ff;
  --water: #4aa3df;
  --earth: #6fae6b;
  --fire: #e8743b;
  --air: #c9b8f0;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fc;
    --surface: #ffffff;
    --text: #172036;
    --muted: #55607a;
    --accent: #2b6cd9;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}
a { color: var(--accent); }

.site-header {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: 1000px; margin: 0 auto;
}
.brand { font-weight: 800; font-size: 1.4rem; text-decoration: none; color: var(--text); }
.brand span { color: var(--accent); }
.site-header nav { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; }
.site-header nav a:not(.btn) { color: var(--muted); text-decoration: none; }
.site-header nav a:not(.btn):hover { color: var(--text); }

main { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

.hero { text-align: center; padding: 80px 0 60px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; color: var(--muted); margin: 0 0 12px; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 4rem); line-height: 1.1; margin: 0 0 20px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--water), var(--earth), var(--fire), var(--air));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; margin: 0 auto 32px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 12px 24px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600;
  text-decoration: none; border: 2px solid var(--accent);
}
.btn:hover { filter: brightness(1.1); }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-small { padding: 6px 16px; font-size: .9rem; }

.section { padding: 48px 0; }
.section h2 { font-size: 1.8rem; margin: 0 0 16px; }
.section p { max-width: 720px; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-top: 24px; }
.card { background: var(--surface); border-radius: 14px; padding: 22px; border-top: 4px solid var(--accent); }
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; }
.card.water { border-color: var(--water); }
.card.earth { border-color: var(--earth); }
.card.fire { border-color: var(--fire); }
.card.air { border-color: var(--air); }

.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; }
.two-col h3 { margin: 0 0 6px; }

.join { text-align: center; background: var(--surface); border-radius: 20px; padding: 56px 24px; margin: 24px 0 48px; }
.join p { margin: 0 auto 24px; }

.site-footer { text-align: center; padding: 32px 24px; color: var(--muted); font-size: .9rem; }