:root {
  --color-brand: #2563eb;
  --color-brand-hover: #1d4ed8;
  --color-brand-soft: #eff6ff;
  --color-accent: #0f766e;
  --color-bg-page: #f8fafc;
  --color-bg-surface: #ffffff;
  --color-bg-muted: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #64748b;
  --shadow-surface: 0 1px 2px rgba(15, 23, 42, 0.06), 0 10px 24px rgba(15, 23, 42, 0.04);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--color-bg-page);
}

body {
  color: var(--color-text-secondary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-brand);
  text-decoration: none;
}

a:hover {
  color: var(--color-brand-hover);
}

code {
  border-radius: 4px;
  background: var(--color-bg-muted);
  color: var(--color-text-primary);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.92em;
  padding: 2px 4px;
}

.static-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 20px 44px;
}

.page-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-primary);
  font-weight: 700;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-brand);
  color: #fff;
  font-weight: 700;
}

.topbar-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.topbar-links a {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.topbar-links a:hover {
  color: var(--color-brand);
}

.page-hero {
  margin-bottom: 26px;
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-surface);
}

.page-kicker {
  margin: 0 0 10px;
  color: var(--color-brand);
  font-size: 14px;
  font-weight: 650;
}

.page-hero h1 {
  max-width: 820px;
  margin: 0;
  color: var(--color-text-primary);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.22;
}

.page-hero p {
  max-width: 860px;
  margin: 14px 0 0;
  color: var(--color-text-secondary);
  font-size: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  background: var(--color-bg-surface);
  color: var(--color-text-primary);
  font-size: 14px;
  font-weight: 650;
}

.button-link.primary {
  border-color: var(--color-brand);
  background: var(--color-brand);
  color: #fff;
}

.button-link:hover {
  border-color: var(--color-brand);
}

.button-link.primary:hover {
  background: var(--color-brand-hover);
  color: #fff;
}

.section {
  margin-bottom: 22px;
}

.section h2 {
  margin: 0 0 14px;
  color: var(--color-text-primary);
  font-size: 22px;
  font-weight: 700;
}

.section > p {
  max-width: 860px;
  margin: 0 0 14px;
}

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

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

.card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-surface);
}

.card h3 {
  margin: 0 0 8px;
  color: var(--color-text-primary);
  font-size: 17px;
  font-weight: 700;
}

.card p {
  margin: 0;
}

.meta-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.meta-list li {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-surface);
}

.meta-list strong {
  display: block;
  color: var(--color-text-primary);
  font-weight: 650;
}

.step-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 22px;
}

.step-list li {
  padding-left: 4px;
}

.endpoint-highlight {
  display: block;
  margin: 14px 0;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-muted);
  color: var(--color-text-primary);
  font-size: 15px;
  word-break: break-all;
}

.inline-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.callout {
  padding: 16px 18px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: var(--color-brand-soft);
}

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

.doc-shell {
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-surface);
}

.doc-shell h1,
.doc-shell h2,
.doc-shell h3,
.doc-shell h4 {
  color: var(--color-text-primary);
}

.doc-shell h1 {
  margin-top: 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: 30px;
}

.doc-shell h2 {
  margin-top: 34px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  font-size: 22px;
}

.doc-shell h3 {
  margin-top: 24px;
  font-size: 18px;
}

.doc-shell h4 {
  margin-top: 18px;
  font-size: 16px;
}

.doc-shell pre {
  overflow-x: auto;
  margin: 14px 0;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #0f172a;
  color: #e2e8f0;
}

.doc-shell code {
  border-radius: 4px;
  background: var(--color-bg-muted);
  color: var(--color-text-primary);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.92em;
  padding: 2px 4px;
}

.doc-shell pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.doc-info,
.capabilities,
.connection-info,
.api-section,
.contact-info,
.json-example,
.toc,
.note,
.warning,
.audio-specs {
  margin: 16px 0;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-muted);
}

.toc ul,
.connection-info ul,
.audio-specs ul {
  padding-left: 18px;
}

.toc a {
  color: var(--color-text-secondary);
}

.toc a:hover {
  color: var(--color-brand);
}

.api-direction {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--color-brand-soft);
  color: var(--color-brand);
  font-size: 13px;
  font-weight: 650;
}

.flow-step {
  margin: 12px 0;
  padding: 14px 16px;
  border-left: 3px solid var(--color-brand);
  border-radius: 8px;
  background: var(--color-bg-muted);
}

.doc-shell table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.doc-shell th,
.doc-shell td {
  border: 1px solid var(--color-border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.doc-shell th {
  background: var(--color-bg-muted);
  color: var(--color-text-primary);
  font-weight: 650;
}

.doc-shell li {
  margin: 5px 0;
}

.page-footer {
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-size: 13px;
  text-align: center;
}

@media (max-width: 900px) {
  .grid,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .page-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .static-page {
    padding: 20px 14px 32px;
  }

  .page-hero,
  .doc-shell {
    padding: 20px;
  }

  .page-hero h1,
  .doc-shell h1 {
    font-size: 26px;
  }
}