:root {
  --bg: #0f172a;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --border: #e2e8f0;
  --error-bg: #fef2f2;
  --error-text: #b91c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(160deg, #1e293b 0%, #0f172a 100%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 36px;
  width: 100%;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.hero { text-align: center; }

h1 {
  margin: 0 0 12px;
  font-size: 1.6rem;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 24px;
  line-height: 1.6;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  padding: 12px 24px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn:hover { background: var(--primary-dark); }

.verify-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.alert {
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.alert-error {
  background: var(--error-bg);
  color: var(--error-text);
}

.meta { color: var(--muted); font-size: 0.85rem; margin: 0 0 16px; }

.tag {
  display: inline-block;
  background: var(--border);
  color: var(--muted);
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
}

.tag-warn { background: #fef3c7; color: #92400e; }

table.rates {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

table.rates th,
table.rates td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

table.rates th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

table.rates .num { text-align: right; font-variant-numeric: tabular-nums; }

table.rates tbody tr:hover { background: #f8fafc; }

.note {
  color: var(--muted);
  font-size: 0.85rem;
  font-style: italic;
  margin: 0 0 16px;
}

.back { margin: 24px 0 0; }
.back a { color: var(--primary); text-decoration: none; }
.back a:hover { text-decoration: underline; }

.footer {
  text-align: center;
  color: #94a3b8;
  font-size: 0.8rem;
  padding: 20px;
}