:root {
  --bg: #07090d;
  --bg-soft: #0e1218;
  --surface: #141923;
  --surface-2: #1a2030;
  --border: rgba(255,255,255,0.08);
  --fg: #e6edf3;
  --muted: #8a93a0;
  --accent: #6366f1;
  --accent-2: #00d4a0;
  --danger: #f85149;
  --ok: #3fb950;
  --radius: 16px;
  --sans: "Sora", system-ui, -apple-system, Segoe UI, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.atmosphere {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 600px at 10% -10%, rgba(99,102,241,0.16), transparent 60%),
    radial-gradient(800px 500px at 100% 0%, rgba(0,212,160,0.08), transparent 55%);
}
.wrap { position: relative; z-index: 1; max-width: 1080px; margin: 0 auto; padding: 0 24px 80px; }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0 18px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 18px rgba(99,102,241,0.35);
}
.brand strong { display: block; font-size: 1.05rem; letter-spacing: -0.02em; }
.brand span { display: block; font-size: 0.72rem; color: var(--muted); letter-spacing: 0.14em; text-transform: uppercase; }
.nav-links { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.92rem; }
.nav-links a:hover { color: var(--fg); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--fg); text-decoration: none; border-radius: 10px;
  padding: 10px 16px; font-weight: 600; font-size: 0.92rem; cursor: pointer;
}
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  border-color: transparent;
}
.btn.ghost { background: transparent; }
.hero { padding: 56px 0 28px; max-width: 720px; }
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.08;
  letter-spacing: -0.04em; margin: 0 0 16px;
}
.hero p { font-size: 1.12rem; color: var(--muted); margin: 0 0 28px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 28px; }
.card {
  background: rgba(20,25,35,0.78); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
}
.card h2, .card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }
.note {
  margin-top: 36px; padding: 16px 18px; border-radius: 12px;
  border: 1px solid rgba(99,102,241,0.25); color: var(--muted); background: rgba(99,102,241,0.08);
}
footer {
  margin-top: 64px; padding-top: 22px; border-top: 1px solid var(--border);
  color: var(--muted); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 0.88rem;
}
footer a { color: var(--muted); }
.auth-shell { min-height: calc(100vh - 40px); display: grid; place-items: center; padding: 40px 16px; }
.auth-card { width: min(440px, 100%); }
.auth-card h1 { margin: 0 0 8px; letter-spacing: -0.03em; }
.auth-card .sub { color: var(--muted); margin: 0 0 22px; }
label { display: block; font-size: 0.82rem; color: var(--muted); margin: 0 0 6px; }
input {
  width: 100%; padding: 12px 13px; border-radius: 10px; margin-bottom: 14px;
  border: 1px solid var(--border); background: #0b0f16; color: var(--fg); font: inherit;
}
.err { display: none; color: var(--danger); font-size: 0.9rem; margin: 0 0 12px; }
.legal { max-width: 760px; padding-top: 24px; }
.legal h1 { letter-spacing: -0.03em; }
.legal h2 { margin-top: 28px; font-size: 1.1rem; }
.legal p, .legal li { color: var(--fg-soft, #c2cad4); }
.closed {
  border: 1px solid rgba(210,153,34,0.35); background: rgba(210,153,34,0.08);
  color: #e6c07b; border-radius: 12px; padding: 14px 16px; margin: 0 0 18px;
}
@media (max-width: 640px) {
  .hero { padding-top: 28px; }
  .nav-links { justify-content: flex-end; }
}