:root {
  color-scheme: light dark;
  --bg: #f6f8fc;
  --surface: #ffffff;
  --surface-alt: #eef3fb;
  --text: #172033;
  --muted: #5d687d;
  --border: #d8e0ec;
  --accent: #2457e6;
  --accent-text: #ffffff;
  --accent-soft: #e7eeff;
  --shadow: 0 18px 48px rgba(24, 39, 75, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c111b;
    --surface: #141b28;
    --surface-alt: #1a2434;
    --text: #e7edf7;
    --muted: #9aa8bf;
    --border: #2a3648;
    --accent: #7aa5ff;
    --accent-text: #08101f;
    --accent-soft: #1c2c4a;
    --shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

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

.wrap {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

header.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(140deg, #2457e6, #7b4dff 55%, #ff8a3d);
  box-shadow: 0 6px 16px rgba(36, 87, 230, 0.35);
}

nav.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
}

nav.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 550;
}

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

main {
  padding: 64px 0 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 48px;
  align-items: center;
  padding-bottom: 56px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.lede {
  margin: 0 0 26px;
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(17px, 2.2vw, 20px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

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

.button[aria-disabled="true"] {
  opacity: 0.65;
  cursor: default;
}

.hero-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
}

.hero-card pre {
  margin: 0;
  padding: 18px;
  overflow: auto;
  border-radius: 12px;
  background: var(--surface-alt);
  color: var(--text);
  font: 13px/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.caret {
  color: var(--accent);
  animation: blink 1.1s steps(2, start) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

kbd {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface-alt);
  color: var(--text);
  font: 11px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.hero-card .popup-demo {
  margin: 10px 12px 0 auto;
  width: min(300px, 100%);
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.16);
  font-size: 12px;
}

.popup-demo .row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 7px;
  border-radius: 6px;
}

.popup-demo .row.active {
  background: var(--accent-soft);
}

.popup-demo .badge {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: var(--surface-alt);
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.popup-demo .row.active .badge {
  background: var(--accent);
  color: var(--accent-text);
}

.popup-demo .detail {
  margin-left: auto;
  color: var(--muted);
  font-size: 11px;
}

section {
  padding: 44px 0;
  border-top: 1px solid var(--border);
}

h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3.6vw, 36px);
  letter-spacing: -0.03em;
}

.section-lede {
  margin: 0 0 28px;
  max-width: 760px;
  color: var(--muted);
}

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

.card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.tag {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

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

th,
td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-alt);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

.notice {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}

footer.site-footer {
  padding: 30px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

footer.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

footer.site-footer a {
  color: var(--muted);
}

/* Privacy policy page */
.policy {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px 0 72px;
}

.policy h1 {
  font-size: clamp(32px, 5vw, 46px);
}

.policy h2 {
  margin-top: 38px;
  font-size: 23px;
}

.policy h3 {
  margin-top: 26px;
  font-size: 17px;
}

.policy p,
.policy li {
  color: var(--muted);
}

.policy ul {
  padding-left: 22px;
}

.policy .meta {
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 14px;
}

.policy .summary {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.policy .summary p {
  margin: 0;
  color: var(--text);
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-card {
    transform: none;
  }

  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 620px) {
  main {
    padding-top: 42px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  nav.site-nav {
    gap: 12px;
    font-size: 13px;
  }

  .site-header .wrap {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 14px 0;
  }
}