:root {
  --bg: #0f172a;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --primary: #6366f1;
  --primary-600: #5457e0;
  --accent: #22d3ee;
  --card: #111827;
  --border: #1f2937;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  background: radial-gradient(1200px 800px at 20% 10%, #0b1220, var(--bg));
  color: var(--fg);
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}

.center-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding-top: 32px;
}

.title {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0;
}

.subtitle { color: var(--muted); margin-top: -8px; }

.btn-row { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

.btn {
  appearance: none;
  border: 1px solid var(--border);
  padding: 12px 18px;
  border-radius: 10px;
  cursor: pointer;
  background: linear-gradient(180deg, #1f2937, #0b1220);
  color: var(--fg);
  transition: transform 0.08s ease, background 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn:hover { transform: translateY(-1px); border-color: #334155; }
.btn:active { transform: translateY(0); }

.btn-primary { background: linear-gradient(180deg, var(--primary), var(--primary-600)); border-color: transparent; color: white; }
.btn-ghost { background: transparent; }

.card { background: #0b1220; border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.stack { display: grid; gap: 14px; }

.field { display: grid; gap: 8px; }
.label { color: var(--muted); font-size: 14px; }
.input {
  width: 100%;
  padding: 12px 14px;
  background: #0b1220;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg);
  outline: none;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.2); }

.review-item { border: 1px dashed #334155; padding: 16px; border-radius: 12px; background: #0b1220; }
.muted { color: var(--muted); }