:root {
  --bg: #161826;
  --surface: #232532;
  --text: #e9e9ed;
  --muted: #8b8d9b;
  --line: rgba(233, 233, 237, 0.14);
  --accent: #9184d9;
  --accent-strong: #b5abfc;
  --positive: #4cb98f;
  --negative: #ea8b81;
  --radius: 16px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f3f8;
    --surface: #ffffff;
    --text: #1c1d26;
    --muted: #5f6170;
    --line: rgba(28, 29, 38, 0.14);
    --accent: #5d5294;
    --accent-strong: #423a6a;
  }
}

* {
  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;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- header ---------- */

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

header.site .wrap {
  max-width: 960px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

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

.brand .mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  flex-shrink: 0;
}

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

nav.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

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

@media (max-width: 480px) {
  header.site .wrap {
    flex-wrap: wrap;
    row-gap: 10px;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .brand {
    font-size: 14.5px;
  }

  .brand .mark {
    width: 28px;
    height: 28px;
  }

  nav.site-nav {
    width: 100%;
    justify-content: center;
    gap: 16px;
  }
}

/* ---------- hero ---------- */

.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 72px 24px 32px;
  text-align: center;
}

.hero .mark-lg {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.hero p.tagline {
  color: var(--muted);
  font-size: 18px;
  max-width: 520px;
  margin: 0 auto 28px;
}

.badge-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--positive);
  display: inline-block;
}

/* ---------- feature grid ---------- */

.grid {
  max-width: 960px;
  margin: 56px auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 720px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

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

.card .emoji {
  font-size: 22px;
  display: block;
  margin-bottom: 10px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

/* ---------- content pages ---------- */

main.doc {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

main.doc h1 {
  font-size: 30px;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

main.doc .updated {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 40px;
}

main.doc h2 {
  font-size: 19px;
  margin-top: 40px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}

main.doc h3 {
  font-size: 15.5px;
  margin-top: 24px;
  margin-bottom: 8px;
}

main.doc p,
main.doc li {
  color: var(--text);
  font-size: 15px;
}

main.doc ul {
  padding-left: 20px;
}

main.doc li {
  margin-bottom: 8px;
}

main.doc strong {
  color: var(--text);
}

.callout {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 14px;
  color: var(--muted);
}

.callout strong {
  color: var(--text);
}

table.perms {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 28px;
  font-size: 13.5px;
}

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

table.perms th {
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- footer ---------- */

footer.site {
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

footer.site .wrap {
  max-width: 960px;
  padding-top: 28px;
  padding-bottom: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

footer.site nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

footer.site nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13.5px;
}

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

footer.site .copy {
  color: var(--muted);
  font-size: 13px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #161826;
  font-weight: 700;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14.5px;
}

@media (prefers-color-scheme: light) {
  .btn {
    color: #ffffff;
  }
}