:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #1a1a1a;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --error: #b91c1c;
  --success: #15803d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

nav a {
  margin-left: 1rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover { color: var(--text); }

main { padding: 2.5rem 1.25rem 4rem; }

.hero {
  text-align: center;
  padding: 2.5rem 0 3rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.lead {
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 1.5rem;
}

.hint {
  color: var(--muted);
  font-size: 0.875rem;
  margin-top: 0.75rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature h3 { margin-bottom: 0.4rem; font-size: 1.05rem; }
.feature p { color: var(--muted); margin: 0; font-size: 0.95rem; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  padding: 0.65rem 1.4rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn:hover { opacity: 0.92; }

.btn-small { padding: 0.45rem 0.9rem; font-size: 0.875rem; }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-link {
  background: none;
  border: none;
  color: var(--error);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0;
  text-decoration: underline;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.plan {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
}

.plan-highlight {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.1);
}

.plan .price {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0.25rem 0 1.25rem;
}

.plan .price span {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--muted);
}

.plan ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.plan li {
  padding: 0.35rem 0;
  color: var(--muted);
}

.form {
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.form input {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

.form-inline {
  display: flex;
  gap: 0.6rem;
  margin: 1rem 0 1.5rem;
  flex-wrap: wrap;
}

.form-inline input {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  flex: 1;
  min-width: 200px;
}

.domain-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.domain-table th, .domain-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.domain-table th {
  background: #f3f4f6;
  color: var(--muted);
  font-weight: 600;
}

.error { color: var(--error); }
.success { color: var(--success); }

.flash {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.flash-error { background: #fee2e2; color: var(--error); }
.flash-success { background: #dcfce7; color: var(--success); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a21;
    --text: #f3f4f6;
    --muted: #9ca3af;
    --border: #2a2e37;
  }
  .domain-table th { background: #1f232c; }
  .flash-error { background: #3f1d1d; }
  .flash-success { background: #123a22; }
}