/* LangStitch SDK docs — LangTailor site personality, ecosystem signal accent */

/* ── Theme tokens (inlined — no @import) ── */
:root {
  --bg: #000000;
  --bg-subtle: #050505;
  --surface: #0a0a0a;
  --surface-2: #0f0f0f;
  --line: #1a1a1a;
  --line-strong: #262626;
  --text: #f5f5f5;
  --text-2: #b4b8c0;
  --text-3: #8b929e;
  --accent: #ffffff;
  --signal: #00e5a0;
  --signal-dim: rgba(0, 229, 160, 0.1);
  --signal-border: rgba(0, 229, 160, 0.35);
  --warn: #f5a623;
  --warn-dim: rgba(245, 166, 35, 0.08);
  --radius: 4px;
  --radius-lg: 6px;
  --font: "Geist", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Geist Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-h: 52px;
  --border: var(--line);
  --border-soft: var(--line);
  --muted: var(--text-3);
  --heading: var(--text);
  --accent-2: #00c98c;
  --teal: var(--signal);
  --code-bg: var(--surface);
  --sidebar-w: 256px;
  --toc-w: 200px;
  --header-h: var(--nav-h);
  --content-max: 800px;
  --sans: var(--font);
}

*, *::before, *::after {
  box-sizing: border-box;
  box-shadow: none;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  letter-spacing: -0.01em;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 2000;
  padding: 8px 14px;
  border-radius: var(--radius);
  background: var(--signal);
  color: var(--bg);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: 8px;
  color: var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.12;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 70%);
}

body > * { position: relative; z-index: 1; }

a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.15s var(--ease);
}

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

/* ── Nav (matches langtailor-site) ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  padding: 0 20px;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  min-width: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.nav-logo:hover { color: var(--text); opacity: 0.92; }

.nav-logo__icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  display: block;
  border-radius: 0;
}

.nav-logo__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.2;
}

.nav-logo__title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #e8e9eb;
}

.nav-logo__subtitle {
  font-size: 10px;
  font-weight: 500;
  color: #767b84;
  margin-top: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.nav-links a {
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius);
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--surface);
}

.nav-cta {
  margin-left: 6px;
  padding: 6px 12px !important;
  background: var(--accent) !important;
  color: var(--bg) !important;
  font-weight: 600 !important;
  border-radius: var(--radius) !important;
}

.nav-cta:hover { color: var(--bg) !important; opacity: 0.9; }

.nav-toggle { display: none; }

.nav-burger {
  display: none;
  width: 36px;
  height: 36px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  flex-shrink: 0;
}

.nav-burger span {
  display: block;
  height: 1px;
  background: var(--text);
  transition: transform 0.2s var(--ease), opacity 0.2s;
}

.docs-sidebar-toggle {
  display: none !important;
}

.docs-contents-btn {
  display: none;
  appearance: none;
  margin: 0;
  padding: 5px 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  flex-shrink: 0;
}

.docs-contents-btn:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.docs-hero-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.docs-hero-top .docs-eyebrow {
  margin: 0;
}

.docs-hero-why {
  margin: 12px 0 0 !important;
  font-size: 13px !important;
  color: var(--text-3) !important;
  max-width: 58ch;
}

/* ── Layout ── */
.docs-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  gap: 0;
  max-width: 1280px;
  margin: 0 auto;
}

/* ── Sidebar ── */
.docs-sidebar {
  position: sticky;
  top: var(--header-h);
  align-self: start;
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 24px 8px 48px 20px;
  border-right: 1px solid var(--line);
}

.docs-sidebar-group { margin-bottom: 22px; }

.docs-sidebar-title {
  margin: 0 0 8px;
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.docs-sidebar a {
  display: block;
  padding: 5px 10px;
  font-size: 12px;
  color: var(--text-2);
  border-radius: var(--radius);
  border-left: 2px solid transparent;
}

.docs-sidebar a:hover {
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
}

.docs-sidebar a.active {
  color: var(--text);
  background: var(--signal-dim);
  border-left-color: var(--signal);
  font-weight: 500;
}

/* ── Content ── */
.docs-content {
  min-width: 0;
  padding: 40px 48px 96px;
}

.docs-article { max-width: var(--content-max); }

.docs-section { scroll-margin-top: calc(var(--header-h) + 16px); }
.docs-section + .docs-section { margin-top: 16px; padding-top: 8px; }

.docs-hero {
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.docs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
}

.docs-eyebrow::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--signal);
}

.docs-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
}

.docs-hero p {
  margin: 0;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.65;
  max-width: 60ch;
}

.docs-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.docs-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: transparent;
  transition: opacity 0.15s var(--ease), border-color 0.15s var(--ease);
}

.docs-btn:hover {
  border-color: var(--text-3);
  color: var(--text);
  text-decoration: none;
  opacity: 0.88;
}

.docs-btn-primary {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

.docs-btn-primary:hover {
  color: var(--bg);
  opacity: 0.88;
}

.docs-content h2 {
  margin: 44px 0 14px;
  padding-top: 8px;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
}

.docs-content h3 {
  margin: 28px 0 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--signal);
}

.docs-content p { margin: 0 0 14px; color: var(--text-2); }
.docs-content ul, .docs-content ol { margin: 0 0 14px; padding-left: 22px; color: var(--text-2); }
.docs-content li { margin: 4px 0; }
.docs-content strong { color: var(--text); font-weight: 600; }

code {
  font-family: var(--mono);
  font-size: 0.92em;
}

.docs-content :not(pre) > code {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--surface);
  font-size: 10px;
  color: var(--text-2);
}

.docs-code {
  position: relative;
  margin: 0 0 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.docs-code pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--text);
}

.docs-code .docs-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 9px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--text-3);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s ease;
}

.docs-code:hover .docs-copy { opacity: 1; }
.docs-copy:hover { color: var(--text); border-color: var(--signal); }

.docs-table-wrap { margin: 0 0 18px; overflow-x: auto; }

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.docs-content th, .docs-content td {
  padding: 9px 13px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.docs-content th {
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
}

.docs-content tr:last-child td { border-bottom: none; }
.docs-content td code { white-space: nowrap; }

.docs-note {
  margin: 0 0 18px;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 13px;
  color: var(--text-2);
}

.docs-note.tip { border-left-color: var(--signal); background: var(--signal-dim); }
.docs-note.warn { border-left-color: var(--warn); background: var(--warn-dim); }

.docs-note-title {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: var(--text);
  font-size: 12px;
}

.docs-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0 0 20px;
}

.docs-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.docs-card h4 {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.docs-card p {
  margin: 0;
  font-size: 12px;
  color: var(--text-2);
}

.docs-toc {
  position: sticky;
  top: var(--header-h);
  align-self: start;
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 40px 16px 48px 0;
  font-size: 12px;
}

.docs-toc-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.docs-toc a {
  display: block;
  padding: 3px 10px;
  color: var(--text-2);
  border-left: 2px solid var(--line);
}

.docs-toc a:hover { color: var(--text); text-decoration: none; }
.docs-toc a.active { color: var(--text); border-left-color: var(--signal); }

.docs-footer {
  max-width: var(--content-max);
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--text-3);
}

.docs-footer a { color: var(--text-3); }
.docs-footer a:hover { color: var(--signal); }

@media (max-width: 1180px) {
  .docs-shell { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .docs-toc { display: none; }
}

@media (max-width: 768px) {
  .nav-burger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    gap: 2px;
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
  .nav-links a { padding: 10px 12px; }
  .nav-cta { margin-left: 0; margin-top: 4px; text-align: center; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
}

@media (max-width: 860px) {
  .docs-shell { grid-template-columns: 1fr; }
  .docs-content { padding: 28px 20px 80px; }
  .docs-contents-btn { display: inline-flex; align-items: center; }
  .docs-sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 280px;
    max-width: 84vw;
    height: calc(100vh - var(--header-h));
    background: var(--bg);
    border-right: 1px solid var(--line);
    transform: translateX(-100%);
    transition: transform 0.2s var(--ease);
    z-index: 45;
  }
  .docs-sidebar.open { transform: translateX(0); }
  .docs-scrim {
    display: none;
    position: fixed;
    inset: var(--header-h) 0 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 44;
  }
  .docs-scrim.open { display: block; }
}

@media (max-width: 560px) {
  .docs-cards { grid-template-columns: 1fr; }
  .docs-lang-grid { grid-template-columns: 1fr; }
  .hero-actions,
  .docs-hero-actions {
    flex-direction: column;
  }
  .btn,
  .docs-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ── Language targets & hero tags ───────────────────── */

.docs-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.docs-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-3);
  background: var(--surface);
}

.docs-tag--live {
  color: var(--signal);
  border-color: var(--signal-border);
  background: var(--signal-dim);
}

.docs-section-lede {
  margin: 0 0 20px;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
  max-width: 720px;
}

.docs-lang-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 20px 0;
}

.docs-lang {
  background: var(--surface);
  padding: 18px;
  opacity: 0.72;
}

.docs-lang--live {
  opacity: 1;
  box-shadow: inset 0 2px 0 var(--signal);
}

.docs-lang__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.docs-lang__head h3 {
  margin: 0;
  font-size: 14px;
  letter-spacing: -0.02em;
}

.docs-lang__badge {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-3);
  white-space: nowrap;
}

.docs-lang__badge--live {
  color: var(--signal);
  border-color: var(--signal-border);
  background: var(--signal-dim);
}

.docs-lang p {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.55;
}

.docs-lang__install {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text);
  margin-bottom: 10px !important;
}

.docs-lang__link {
  font-size: 11px;
  font-weight: 600;
  color: var(--signal);
  margin-right: 12px;
}

.docs-runtime-paths {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 18px 0 22px;
}

.docs-runtime-path {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  opacity: 0.8;
}

.docs-runtime-path--live {
  opacity: 1;
  border-color: var(--signal-border);
  box-shadow: inset 0 2px 0 var(--signal);
}

.docs-runtime-path h3 {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: -0.02em;
}

.docs-runtime-path ul {
  margin: 0 0 10px;
  padding-left: 18px;
  font-size: 12px;
  color: var(--text-2);
}

.docs-runtime-path .docs-code {
  margin: 0 0 10px;
}

.docs-runtime-path p {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--text-2);
}

.nav-cta--secondary {
  background: transparent;
  border: 1px solid var(--signal-border);
  color: var(--signal);
}

@media (max-width: 860px) {
  .docs-runtime-paths {
    grid-template-columns: 1fr;
  }
}