:root {
  --bg: #0f1419;
  --bg-elev: #171e26;
  --line: #2a3542;
  --text: #e8eef5;
  --muted: #8b9aab;
  --accent: #e8a317;
  --accent-text: #1a1405;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 10% -10%, #1c2a38 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #243018 0%, transparent 45%),
    var(--bg);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
}

.glow-a {
  width: 320px;
  height: 320px;
  background: #e8a317;
  top: -80px;
  right: -40px;
}

.glow-b {
  width: 280px;
  height: 280px;
  background: #1c2a38;
  bottom: -60px;
  left: -40px;
}

.card {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: color-mix(in srgb, var(--bg-elev) 88%, black);
  padding: 36px 28px;
  text-align: center;
}

.brand {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(1.75rem, 5vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 56px;
  border-radius: 14px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 32px rgba(232, 163, 23, 0.25);
}

.btn:hover {
  filter: brightness(1.05);
}

.hint {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.hint a {
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 480px) {
  .card {
    padding: 28px 20px;
  }
}