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

:root {
  --bg: #ffffff;
  --bg-alt: #f9fafb;
  --bg-code: #0f172a;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --text: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-bg: #eff6ff;
  --accent-border: #bfdbfe;
  --green: #059669;
  --green-bg: #ecfdf5;
  --yellow: #d97706;
  --yellow-bg: #fffbeb;
  --yellow-text: #92400e;
  --red: #dc2626;
  --red-bg: #fef2f2;
  --topbar-bg: rgba(255,255,255,0.85);
  --sidebar-w: 240px;
  --topbar-h: 56px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "Fira Code", "Cascadia Code", "JetBrains Mono", Consolas, monospace;
}

[data-theme="dark"] {
  --bg: #0f1117;
  --bg-alt: #1a1d27;
  --bg-code: #131620;
  --border: #2d3042;
  --border-light: #252838;
  --text: #e8eaf0;
  --text-secondary: #9ca3b4;
  --text-muted: #6b7088;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-bg: rgba(59, 130, 246, 0.12);
  --accent-border: rgba(59, 130, 246, 0.25);
  --green: #34d399;
  --green-bg: rgba(52, 211, 153, 0.1);
  --yellow: #fbbf24;
  --yellow-bg: rgba(251, 191, 36, 0.1);
  --yellow-text: #fbbf24;
  --red: #f87171;
  --red-bg: rgba(248, 113, 113, 0.1);
  --topbar-bg: rgba(15, 17, 23, 0.85);
  color-scheme: dark;
}

body {
  font-family: var(--font);
  margin: 0;
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ========== Top bar ========== */
.doc-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-h);
  background: var(--topbar-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.doc-topbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}

.doc-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

.doc-topnav {
  display: flex;
  gap: 4px;
  margin-left: 12px;
}

.doc-topnav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.15s;
}

.doc-topnav-link:hover {
  color: var(--text);
  background: var(--bg-alt);
}

.doc-search-trigger {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-alt);
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.15s;
  min-width: 220px;
}

.doc-search-trigger:hover {
  border-color: var(--accent-border);
  color: var(--text-secondary);
}

.doc-search-trigger kbd {
  font-family: var(--font);
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text-muted);
  margin-left: auto;
}

.doc-search-icon {
  font-size: 16px;
}

.doc-mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 18px;
  cursor: pointer;
  color: var(--text-secondary);
}

/* ========== Search modal ========== */
.doc-search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}

.doc-search-overlay.hidden { display: none; }

.doc-search-modal {
  width: 560px;
  max-width: 90vw;
  background: var(--bg);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  overflow: hidden;
}

.doc-search-input {
  width: 100%;
  padding: 16px 20px;
  border: none;
  border-bottom: 1px solid var(--border);
  font-size: 16px;
  font-family: var(--font);
  outline: none;
  color: var(--text);
  background: var(--bg);
}

.doc-search-results {
  max-height: 320px;
  overflow-y: auto;
  padding: 8px;
}

.doc-search-result {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: background 0.1s;
}

.doc-search-result:hover, .doc-search-result.selected {
  background: var(--accent-bg);
}

.doc-search-result small {
  display: block;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 2px;
}

.doc-search-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}

.doc-search-footer kbd {
  font-family: var(--font);
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-alt);
  font-size: 11px;
}

/* ========== Layout ========== */
.doc-layout {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  padding-top: var(--topbar-h);
}

/* ========== Sidebar ========== */
.doc-sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 20px 0;
}

.doc-sidebar-section {
  padding: 0 16px;
  margin-bottom: 20px;
}

.doc-sidebar-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  padding: 4px 8px;
  margin-bottom: 4px;
}

.doc-sidebar-link {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 5px 8px;
  border-radius: 6px;
  transition: all 0.1s;
  border-left: 2px solid transparent;
}

.doc-sidebar-link:hover {
  color: var(--text);
  background: var(--bg-alt);
}

.doc-sidebar-link.active {
  color: var(--accent);
  background: var(--accent-bg);
  border-left-color: var(--accent);
  font-weight: 500;
}

/* ========== Main content ========== */
.doc-main {
  flex: 1;
  min-width: 0;
  padding: 0 48px 80px;
}

.doc-content {
  max-width: 780px;
}

.doc-content section {
  padding-top: 32px;
}

.doc-content h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0 0 8px;
  line-height: 1.2;
}

.doc-content h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin: 0 0 12px;
  padding-top: 8px;
  border-top: 1px solid var(--border-light);
}

.doc-content section:first-child h2,
.doc-content h2:first-child {
  border-top: none;
}

.doc-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 8px;
}

.doc-content p {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 16px;
}

.doc-content ul, .doc-content ol {
  font-size: 15px;
  color: var(--text-secondary);
  padding-left: 24px;
  margin: 0 0 16px;
}

.doc-content li {
  margin-bottom: 6px;
}

.doc-content code {
  font-family: var(--mono);
  font-size: 13px;
  padding: 2px 6px;
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  color: var(--red);
}

/* ========== Hero ========== */
.doc-hero {
  padding-top: 48px;
}

.doc-hero-sub {
  font-size: 18px;
  max-width: 540px;
  line-height: 1.6;
}

.doc-hero-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.doc-hero-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.15s;
}

.doc-hero-card:hover {
  border-color: var(--accent-border);
  box-shadow: 0 4px 12px rgba(37,99,235,0.08);
}

.doc-hero-card strong {
  font-size: 14px;
  color: var(--text);
}

.doc-hero-card span {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== Steps ========== */
.doc-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 16px 0;
}

.doc-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.doc-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.doc-step strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}

.doc-step p {
  margin: 4px 0 0;
}

/* ========== Code blocks ========== */
.doc-code {
  position: relative;
  margin: 12px 0 16px;
}

.doc-code pre {
  background: var(--bg-code);
  color: #e2e8f0;  /* Always light text on dark code background */
  padding: 16px 20px;
  border-radius: 10px;
  overflow-x: auto;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
}

.doc-code code {
  font-family: var(--mono);
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: 13px;
}

.doc-copy {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 5px;
  background: rgba(255,255,255,0.08);
  color: #94a3b8;
  font-size: 11px;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.15s;
}

.doc-copy:hover {
  background: rgba(255,255,255,0.15);
  color: #e2e8f0;
}

.doc-copy.copied {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

/* ========== Callouts ========== */
.doc-callout {
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 14px;
  margin: 16px 0;
  border-left: 3px solid;
}

.doc-callout strong {
  display: block;
  margin-bottom: 2px;
}

.doc-callout-info {
  background: var(--accent-bg);
  border-color: var(--accent);
  color: var(--accent-hover);
}

.doc-callout-warning {
  background: var(--yellow-bg);
  border-color: var(--yellow);
  color: var(--yellow-text);
}

/* ========== Feature grid ========== */
.doc-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 16px 0;
}

.doc-feature {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.doc-feature strong {
  display: block;
  font-size: 13px;
  margin-bottom: 2px;
}

.doc-feature span {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== Tables ========== */
.doc-table-wrapper {
  overflow-x: auto;
  margin: 12px 0 16px;
}

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

.doc-table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-alt);
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--text-secondary);
}

.doc-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
}

.doc-table td code {
  font-size: 12px;
}

.doc-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
}

.doc-badge-red { background: var(--red-bg); color: var(--red); }
.doc-badge-yellow { background: var(--yellow-bg); color: var(--yellow); }
.doc-badge-gray { background: var(--bg-alt); color: var(--text-muted); }

/* ========== API endpoints ========== */
.doc-endpoint {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}

.doc-endpoint:last-child {
  border-bottom: none;
}

.doc-method {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-right: 8px;
}

.doc-method-get { background: var(--green-bg); color: var(--green); }
.doc-method-post { background: var(--accent-bg); color: var(--accent); }

.doc-endpoint > code {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  padding: 0;
}

.doc-endpoint > p {
  margin: 8px 0 0;
}

.doc-params {
  margin-top: 10px;
}

.doc-param {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  padding: 4px 0;
}

.doc-param code {
  font-weight: 600;
  color: var(--accent);
  background: none;
  border: none;
}

.doc-param span {
  color: var(--text-secondary);
}

/* ========== FAQ ========== */
.doc-faq {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.doc-faq-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-light);
}

.doc-faq-item:last-child {
  border-bottom: none;
}

.doc-faq-item strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--text);
}

.doc-faq-item p {
  margin: 0;
  font-size: 14px;
}

.doc-badge-green {
  background: var(--green-bg);
  color: var(--green);
}

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .doc-sidebar { display: none; }
  .doc-sidebar.open { display: block; position: fixed; top: var(--topbar-h); left: 0; bottom: 0; width: 260px; background: var(--bg); z-index: 50; box-shadow: 4px 0 20px rgba(0,0,0,0.1); }
  .doc-mobile-toggle { display: block; }
  .doc-search-trigger { min-width: auto; }
  .doc-search-trigger span { display: none; }
  .doc-main { padding: 0 20px 60px; }
  .doc-hero-cards { grid-template-columns: 1fr; }
  .doc-feature-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .doc-topnav { display: none; }
}

/* ========== Theme Toggle ========== */
.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.2s ease, border-color 0.2s ease;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent-border);
  color: var(--text);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* Smooth scroll */
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 16px); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }