:root {
  --bg: oklch(18% 0.012 260);
  --surface: oklch(24% 0.013 260);
  --surface-dim: oklch(19% 0.012 260);
  --hover: oklch(28% 0.015 260);
  --border: oklch(30% 0.015 260);
  --border-soft: oklch(38% 0.02 260);
  --text: oklch(92% 0.01 260);
  --text-secondary: oklch(85% 0.01 260);
  --text-muted: oklch(60% 0.02 260);
  --text-faint: oklch(50% 0.02 260);
  --accent: oklch(65% 0.18 280);
  --premium: oklch(75% 0.16 85);
  --premium-text: oklch(18% 0.01 260);
  --danger: oklch(60% 0.16 25);
  --danger-text: oklch(97% 0.01 25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

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

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  text-decoration: none;
  color: var(--text);
}

.brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--accent);
  flex-shrink: 0;
}

nav.site {
  display: flex;
  gap: 22px;
  font-size: 14px;
}

nav.site a {
  color: var(--text-muted);
  text-decoration: none;
}

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

main {
  padding: 56px 0 80px;
}

h1 {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}

h2 {
  font-size: 21px;
  font-weight: 700;
  margin: 40px 0 12px;
}

h3 {
  font-size: 15px;
  font-weight: 700;
  margin: 24px 0 8px;
  color: var(--text-secondary);
}

p {
  color: var(--text-secondary);
  margin: 0 0 14px;
}

.lede {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 60ch;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn.primary {
  background: var(--accent);
  color: oklch(15% 0.01 260);
}

.btn.premium {
  background: var(--premium);
  color: var(--premium-text);
}

.btn.ghost {
  background: var(--hover);
  color: var(--text-secondary);
}

.btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0 8px;
}

.features .card h3 {
  margin-top: 0;
}

.features .card p {
  font-size: 13.5px;
  margin: 0;
}

.pricing-card {
  max-width: 360px;
  margin: 24px 0;
  position: relative;
  border-color: var(--premium);
}

.badge {
  position: absolute;
  top: -11px;
  left: 24px;
  background: var(--premium);
  color: var(--premium-text);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 6px;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 8px;
}

.price-before {
  color: var(--text-muted);
  text-decoration: line-through;
  font-size: 16px;
}

.price {
  font-size: 32px;
  font-weight: 700;
}

.price-unit {
  color: var(--text-muted);
  font-size: 13px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 22px;
}

.check-list li {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.check-list li::before {
  content: '✓';
  color: var(--premium);
  font-weight: 700;
  flex-shrink: 0;
}

.free-note {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 28px;
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--text-faint);
  font-size: 12.5px;
}

footer.site .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

footer.site a {
  color: var(--text-muted);
  text-decoration: none;
  margin-right: 16px;
}

footer.site a:hover {
  color: var(--text-secondary);
}

legal p, legal li {
  color: var(--text-secondary);
  font-size: 14.5px;
}

.legal-updated {
  color: var(--text-faint);
  font-size: 12.5px;
  margin-bottom: 32px;
}

.placeholder {
  background: var(--surface-dim);
  border: 1px dashed var(--border-soft);
  border-radius: 8px;
  padding: 2px 6px;
  color: var(--text-faint);
  font-size: 0.92em;
}

.field {
  display: flex;
  gap: 8px;
  margin: 16px 0;
}

.field input[type='email'],
.field input[type='text'] {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-soft);
  background: var(--surface-dim);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
}

.status-msg {
  font-size: 13px;
  margin-top: 10px;
  min-height: 18px;
}

.status-msg.ok {
  color: var(--premium);
}

.status-msg.err {
  color: var(--danger);
}

.key-block {
  font-family: ui-monospace, monospace;
  font-size: 18px;
  font-weight: 700;
  background: var(--surface-dim);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 8px;
  letter-spacing: 0.04em;
  margin: 16px 0;
  word-break: break-all;
}