:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #eef4f7;
  --line: #dce4ec;
  --text: #111827;
  --muted: #5d6977;
  --brand: #0f766e;
  --brand-strong: #0a5f59;
  --accent: #d97706;
  --danger: #dc2626;
  --ok: #16a34a;
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

.shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
  padding: 0 32px;
  background: rgba(246, 248, 251, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 9px;
  background: var(--brand);
  color: #fff;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

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

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: 28px;
  align-items: stretch;
  margin-bottom: 22px;
}

.panel,
.metric,
.table-panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel {
  padding: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-strong);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 14px;
  font-size: 48px;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: 24px;
}

h3 {
  margin-bottom: 8px;
  font-size: 17px;
}

.copy {
  max-width: 720px;
  color: var(--muted);
  font-size: 17px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  background: var(--brand-strong);
}

.button.secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.button.secondary:hover {
  background: var(--surface-soft);
}

.button.warning {
  background: var(--accent);
}

.button.warning:hover {
  background: #b45309;
}

.grid-4,
.grid-3,
.grid-2 {
  display: grid;
  gap: 16px;
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric {
  padding: 18px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 4px;
  font-size: 26px;
}

.metric.ok strong {
  color: var(--ok);
}

.steps {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfd;
}

.step-num {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--brand-strong);
  font-weight: 850;
}

.section {
  margin-top: 22px;
}

.table-panel {
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  background: #f8fafc;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

code,
.key-chip {
  padding: 3px 7px;
  border-radius: 6px;
  background: #eef2f7;
  color: #172033;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.notice {
  margin-bottom: 18px;
  padding: 12px 14px;
  border: 1px solid rgba(15, 118, 110, 0.2);
  border-radius: 10px;
  background: #edf8f7;
  color: #0f3f3a;
}

.notice.error {
  border-color: rgba(220, 38, 38, 0.2);
  background: #fff1f2;
  color: #7f1d1d;
}

.gateway-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.gateway-strip > div {
  display: grid;
  gap: 3px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfd;
}

.gateway-strip strong {
  font-size: 13px;
}

.gateway-strip span {
  color: var(--muted);
  font-size: 12px;
}

.created-key {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid rgba(15, 118, 110, 0.24);
  border-radius: 10px;
  background: #f2fbfa;
  overflow-x: auto;
}

.created-key code {
  background: transparent;
  font-size: 14px;
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.model-family-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.model-family {
  display: grid;
  gap: 5px;
  min-height: 118px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcfd;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font: inherit;
}

.model-family:hover,
.model-family.active {
  border-color: rgba(15, 118, 110, 0.38);
  background: #f2fbfa;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.model-family strong {
  font-size: 18px;
}

.model-family span,
.model-family small {
  color: var(--muted);
  font-size: 12px;
}

.model-family.active strong {
  color: var(--brand-strong);
}

.model-groups {
  margin-top: 14px;
}

.model-group[hidden] {
  display: none;
}

.model-group {
  padding: 14px;
  border: 1px solid rgba(15, 118, 110, 0.14);
  border-radius: 12px;
  background: #ffffff;
}

.model-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.model-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.model-option {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  min-height: 82px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfd;
  color: var(--text);
  cursor: pointer;
}

.model-option:hover {
  border-color: rgba(15, 118, 110, 0.35);
  background: #f5fbfa;
}

.model-option input {
  width: 16px;
  height: 16px;
  margin-top: 3px;
}

.model-option strong,
.model-option small {
  display: block;
}

.model-option small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.plan {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.plan strong {
  display: block;
  font-size: 18px;
}

.price {
  margin: 6px 0 10px;
  font-size: 34px;
  font-weight: 850;
}

.muted {
  color: var(--muted);
}

.footer {
  padding: 28px 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .topbar {
    padding: 0 18px;
  }

  .nav {
    display: none;
  }

  .hero,
  .grid-4,
  .grid-3,
  .grid-2,
  .gateway-strip,
  .model-family-grid,
  .model-picker,
  .plans {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 38px;
  }
}