:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --ink: #17202a;
  --muted: #607086;
  --line: #dce2ea;
  --blue: #1e63ff;
  --blue-dark: #1647b8;
  --green: #12a672;
  --amber: #d89118;
  --code-bg: #111827;
  --code-ink: #e8eef8;
  --sidebar: #101827;
  --sidebar-muted: #9cabc2;
  --shadow: 0 18px 45px rgba(21, 34, 58, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 292px;
  padding: 24px 18px;
  color: #fff;
  background: var(--sidebar);
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 26px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--green));
  font-size: 26px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 22px;
  line-height: 1.1;
}

.brand small {
  color: var(--sidebar-muted);
  font-size: 12px;
}

.search {
  display: block;
  margin-bottom: 22px;
}

.search span {
  display: block;
  margin-bottom: 8px;
  color: var(--sidebar-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.search input {
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 0 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.search input:focus {
  border-color: rgba(120, 180, 255, 0.85);
}

.nav {
  display: grid;
  gap: 2px;
}

.nav a {
  display: block;
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--sidebar-muted);
  text-decoration: none;
  font-size: 14px;
}

.nav a:hover,
.nav a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

main {
  max-width: 1120px;
  margin-left: 292px;
  padding: 32px clamp(20px, 5vw, 64px) 72px;
}

.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: center;
  gap: 32px;
  color: #fff;
  background:
    linear-gradient(110deg, rgba(14, 25, 43, 0.95), rgba(20, 60, 85, 0.78)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='900' height='520' viewBox='0 0 900 520'%3E%3Crect width='900' height='520' fill='%23213a55'/%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.12' stroke-width='2'%3E%3Cpath d='M90 80h260v120H90zM420 80h360v70H420zM420 190h230v70H420zM90 250h300v160H90zM470 310h310v110H470z'/%3E%3Cpath d='M130 120h120M130 150h170M460 115h220M130 300h190M130 335h130M510 355h180'/%3E%3C/g%3E%3Ccircle cx='760' cy='110' r='42' fill='%2312a672' fill-opacity='.55'/%3E%3Ccircle cx='705' cy='390' r='58' fill='%231e63ff' fill-opacity='.42'/%3E%3C/svg%3E");
  background-size: cover;
  background-position: center;
  border-radius: 8px;
  padding: clamp(28px, 5vw, 56px);
  box-shadow: var(--shadow);
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #91d7ff;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 8px;
  padding: 0 16px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.button.primary {
  border-color: var(--blue);
  background: var(--blue);
}

.hero-panel {
  display: grid;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 22px;
  background: rgba(7, 18, 34, 0.58);
}

.hero-panel span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-panel strong {
  margin-bottom: 10px;
  font-size: 22px;
}

.doc-section {
  scroll-margin-top: 24px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(22px, 4vw, 34px);
  background: var(--surface);
}

.doc-section.hidden {
  display: none;
}

h2,
h3 {
  line-height: 1.2;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3vw, 38px);
}

h3 {
  margin: 24px 0 10px;
  font-size: 19px;
}

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

code {
  border-radius: 5px;
  padding: 0.12em 0.36em;
  color: #0f4fb9;
  background: #edf4ff;
  font-family: "Cascadia Code", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

pre {
  position: relative;
  margin: 16px 0;
  border-radius: 8px;
  overflow: auto;
  background: var(--code-bg);
}

pre code {
  display: block;
  min-width: max-content;
  padding: 18px 20px;
  color: var(--code-ink);
  background: transparent;
  line-height: 1.55;
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  min-height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 7px;
  padding: 0 10px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  cursor: pointer;
  font-weight: 700;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fbfcff;
}

.feature-grid h3 {
  margin-top: 0;
}

.table-wrap {
  overflow-x: auto;
}

.function-index {
  display: grid;
  gap: 16px;
}

.function-index article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fbfcff;
}

.function-index h3 {
  margin-top: 0;
}

.method-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.method-list code {
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 14px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  color: #32435a;
  background: #f0f4f9;
}

.empty-state {
  display: none;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 28px;
  text-align: center;
  background: #fff;
}

.empty-state.show {
  display: block;
}

.top-button {
  position: fixed;
  right: 22px;
  bottom: 22px;
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: var(--blue-dark);
  cursor: pointer;
  font-size: 22px;
  box-shadow: var(--shadow);
}

.top-button.show {
  display: block;
}

@media (max-width: 960px) {
  .sidebar {
    position: static;
    width: auto;
    max-height: none;
  }

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

  main {
    margin-left: 0;
    padding: 24px 16px 56px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

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

@media (max-width: 620px) {
  .nav {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px 20px;
  }

  .hero h1 {
    font-size: 42px;
  }

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

  .doc-section {
    padding: 20px 16px;
  }
}