/* Firn docs - firnflow.io */

:root {
  --color-bg: #ffffff;
  --color-surface: #f8f9fb;
  --color-border: #e2e6ed;
  --color-text: #1a1d23;
  --color-text-secondary: #5a6170;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-light: #eff6ff;
  --color-code-bg: #f1f3f5;
  --color-code-text: #1a1d23;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-sidebar-bg: #f8f9fb;
  --color-sidebar-active: #eff6ff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --max-width: 1200px;
  --sidebar-width: 260px;
  --header-height: 56px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }
img { max-width: 100%; }

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 100;
}
.site-header .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.site-header .logo span {
  color: var(--color-accent);
}
.site-header nav {
  margin-left: auto;
  display: flex;
  gap: 24px;
  align-items: center;
}
.site-header nav a {
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
}
.site-header nav a:hover {
  color: var(--color-text);
  text-decoration: none;
}
.site-header nav a.active {
  color: var(--color-accent);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-text);
}
.menu-toggle svg {
  display: block;
}

/* ── Layout ── */
.layout {
  display: flex;
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-border);
  padding: 24px 0;
  position: fixed;
  top: var(--header-height);
  bottom: 0;
  overflow-y: auto;
  z-index: 50;
}
.sidebar-section {
  margin-bottom: 24px;
}
.sidebar-section h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  padding: 0 24px;
  margin: 0 0 8px;
}
.sidebar a {
  display: block;
  padding: 6px 24px;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-left: 3px solid transparent;
  transition: all 0.15s;
}
.sidebar a:hover {
  color: var(--color-text);
  background: var(--color-sidebar-active);
  text-decoration: none;
}
.sidebar a.active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  background: var(--color-sidebar-active);
  font-weight: 600;
}

/* ── Main content ── */
.content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 40px 48px 80px;
  max-width: 860px;
}

/* ── Typography ── */
.content h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  line-height: 1.2;
}
.content h2 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 48px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.content h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 32px 0 12px;
}
.content .subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin: 0 0 32px;
  line-height: 1.5;
}
.content p {
  margin: 0 0 16px;
}
.content ul, .content ol {
  margin: 0 0 16px;
  padding-left: 24px;
}
.content li {
  margin-bottom: 6px;
}

/* ── Code blocks ── */
pre {
  background: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  margin: 0 0 20px;
}
code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
}
pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* ── Tables ── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 24px;
  font-size: 14px;
}
th {
  text-align: left;
  font-weight: 600;
  padding: 10px 16px;
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  white-space: nowrap;
}
td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
tr:last-child td {
  border-bottom: none;
}

/* ── Callouts ── */
.callout {
  border-radius: 8px;
  padding: 16px 20px;
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.6;
}
.callout-title {
  font-weight: 600;
  margin-bottom: 4px;
}
.callout-info {
  background: var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
}
.callout-warning {
  background: #fffbeb;
  border-left: 4px solid var(--color-warning);
}
.callout-success {
  background: #f0fdf4;
  border-left: 4px solid var(--color-success);
}

/* ── Cards (homepage) ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 0 0 32px;
}
.card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
}
.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}
.card p {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ── Stats row (homepage) ── */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 0 0 40px;
}
.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}
.stat .value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 4px;
}
.stat .label {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ── Method badges ── */
.method {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}
.method-get { background: #dbeafe; color: #1e40af; }
.method-post { background: #dcfce7; color: #166534; }
.method-delete { background: #fee2e2; color: #991b1b; }

/* ── Endpoint blocks ── */
.endpoint {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin: 0 0 24px;
  overflow: hidden;
}
.endpoint-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
}
.endpoint-header:hover {
  background: var(--color-accent-light);
}
.endpoint-path {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}
.endpoint-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-left: auto;
}
.endpoint-body {
  padding: 20px;
}
.endpoint-body h4 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  margin: 0 0 8px;
}
.endpoint-body h4:not(:first-child) {
  margin-top: 20px;
}

/* ── Copy button on code blocks ── */
.code-wrapper {
  position: relative;
}
.code-wrapper .copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
}
.code-wrapper:hover .copy-btn {
  opacity: 1;
}
.code-wrapper .copy-btn:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 48px;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-left: var(--sidebar-width);
}

/* ── Homepage (no sidebar) ── */
.page-home .content {
  margin-left: 0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: 60px 48px 80px;
}
.page-home .sidebar { display: none; }
.page-home .site-footer { margin-left: 0; text-align: center; }

.hero {
  text-align: center;
  margin-bottom: 48px;
}
.hero h1 {
  font-size: 42px;
  margin-bottom: 16px;
}
.hero .subtitle {
  font-size: 20px;
  max-width: 600px;
  margin: 0 auto 24px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
  text-decoration: none;
}
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .content {
    margin-left: 0;
    padding: 32px 20px 80px;
  }
  .site-footer {
    margin-left: 0;
    padding: 24px 20px;
  }
  .menu-toggle {
    display: block;
    margin-right: 12px;
  }
  .hero h1 { font-size: 32px; }
  .page-home .content { padding: 40px 20px 80px; }
}