/* ==========================================================================
   Demi Developer Portal — Design System
   ==========================================================================
   Tokens follow the Demi / Untitled UI design system.
   No build tools — all values via CSS custom properties.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand */
  --demi-50: #effaf6;
  --demi-100: #d0f2e6;
  --demi-200: #a4e4d1;
  --demi-400: #2cc295;
  --demi-500: #0ba97c;
  --demi-teal: #00b8a5;
  --demi-teal-rgb: 0, 184, 165;
  --demi-purple: #6928b1;
  --demi-purple-rgb: 105, 40, 177;
  --demi-600: #089374;
  --demi-700: #06705a;
  --demi-800: #085d4d;
  --demi-900: #074d41;
  --demi-950: #043a33;

  /* Gray (Untitled UI) */
  --gray-25: #fafafa;
  --gray-50: #f5f5f6;
  --gray-100: #f0f1f1;
  --gray-200: #e9eaeb;
  --gray-300: #d5d7da;
  --gray-400: #a4a7ae;
  --gray-500: #717680;
  --gray-600: #535862;
  --gray-700: #414651;
  --gray-800: #252b37;
  --gray-900: #181d27;
  --gray-950: #0a0d12;

  /* Semantic text */
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-700);
  --text-tertiary: var(--gray-500);
  --text-on-dark: #ffffff;
  --text-brand: var(--demi-600);

  /* Backgrounds */
  --bg-body: var(--gray-25);
  --bg-surface: #ffffff;
  --bg-code: var(--gray-900);
  --bg-reference-shell: var(--gray-950);

  /* Borders */
  --border-light: var(--gray-200);
  --border-medium: var(--gray-300);

  /* Shadows (Untitled UI) */
  --shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.1), 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 4px 8px -2px rgba(16, 24, 40, 0.1), 0 2px 4px -2px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 12px 16px -4px rgba(16, 24, 40, 0.08), 0 4px 6px -2px rgba(16, 24, 40, 0.03);
  --shadow-xl: 0 20px 24px -4px rgba(16, 24, 40, 0.08), 0 8px 8px -4px rgba(16, 24, 40, 0.03);

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 99rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Layout */
  --container-max: 80rem;
  --sidebar-width: 15rem;
  --header-height: 3.5rem;
  --hero-gradient-depth: 28rem;
  --hero-gradient-background:
    radial-gradient(ellipse at 30% 50%, rgba(var(--demi-teal-rgb), 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(var(--demi-purple-rgb), 0.1) 0%, transparent 50%),
    linear-gradient(90deg, var(--demi-950) 0%, var(--demi-800) 42%, var(--demi-600) 100%);
  --hero-gradient-size: 100% var(--hero-gradient-depth), 100% var(--hero-gradient-depth), 100% 100%;
  --hero-gradient-offset-position:
    center calc(-1 * var(--header-height)), center calc(-1 * var(--header-height)), center center;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  font-size: 1rem;
  line-height: 1.625;
  color: var(--text-primary);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: var(--text-brand);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover {
  color: var(--demi-700);
}

/* --------------------------------------------------------------------------
   3. Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* --------------------------------------------------------------------------
   4. Header Bar
   -------------------------------------------------------------------------- */
.header-bar,
.hero,
.docs-hero {
  background: var(--hero-gradient-background);
  background-color: var(--demi-800);
  background-repeat: no-repeat;
  background-size: var(--hero-gradient-size);
}

.header-bar {
  background-position: top center;
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: none;
}

.header-bar .container {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-8);
}

.header-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo svg {
  height: 1.75rem;
  width: auto;
}

.header-logo svg path {
  fill: rgba(255, 255, 255, 0.94);
}

.header-logo svg path:nth-child(-n + 3) {
  fill: rgba(255, 255, 255, 0.94);
}

.header-logo span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-left: var(--space-2);
}

.header-logo-fallback {
  color: var(--text-on-dark);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.header-nav::-webkit-scrollbar {
  display: none;
}

.header-nav a {
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  white-space: nowrap;
  transition:
    background 0.15s,
    color 0.15s;
}

.header-nav a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-on-dark);
}

.header-nav a.active {
  background: rgba(255, 255, 255, 0.16);
  color: var(--text-on-dark);
  font-weight: 600;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-on-dark);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-2);
  margin-left: auto;
}

/* --------------------------------------------------------------------------
   5. Hero Section (landing page only)
   -------------------------------------------------------------------------- */
.hero,
.docs-hero {
  background-position: var(--hero-gradient-offset-position);
  color: var(--text-on-dark);
  overflow: hidden;
  position: relative;
  text-align: center;
}

.hero .container,
.docs-hero .container {
  position: relative;
  z-index: 1;
}

.hero {
  padding: 4.5rem 0 3.5rem;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-3);
  letter-spacing: -0.03em;
}

.hero p {
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 42rem;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   6. Card Grid
   -------------------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: var(--space-6);
  padding: var(--space-10) 0 var(--space-12);
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  color: var(--gray-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  margin-bottom: var(--space-5);
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  flex: 1;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--demi-600);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.card-link:hover {
  color: var(--demi-700);
}
.card-link i {
  font-size: 0.75rem;
  transition: transform 0.15s;
}
.card-link:hover i {
  transform: translateX(2px);
}

.tool-payload-schema {
  margin-top: var(--space-2);
  border-top: 1px solid var(--border-light);
  padding-top: var(--space-4);
}

.tool-payload-schema summary {
  color: var(--demi-700);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}

.tool-payload-schema pre {
  max-height: 24rem;
  margin: var(--space-3) 0 0;
  padding: var(--space-4);
  overflow: auto;
  border-radius: var(--radius-lg);
  background: var(--gray-950);
  color: var(--gray-100);
  font-size: 0.75rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   7. Page Layout (sidebar + article)
   -------------------------------------------------------------------------- */
.main {
  padding: var(--space-8) 0;
  min-height: 60vh;
}

.page-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--space-10);
  align-items: start;
}

/* --------------------------------------------------------------------------
   8. Sidebar
   -------------------------------------------------------------------------- */
.sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-8));
  max-height: calc(100vh - var(--header-height) - var(--space-16));
  overflow-y: auto;
}

.sidebar-section {
  margin-bottom: var(--space-6);
}

.sidebar-section h4 {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  padding: 0 var(--space-3);
  margin-bottom: var(--space-2);
}

.sidebar-section a {
  display: block;
  padding: 0.375rem var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition:
    background 0.15s,
    color 0.15s;
}

.sidebar-section a:hover {
  background: var(--gray-50);
  color: var(--text-primary);
}

.sidebar-section a.active {
  background: var(--demi-50);
  color: var(--demi-700);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   9. Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumbs {
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-surface);
  padding: var(--space-3) 0;
}

.breadcrumbs .container {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
}

.breadcrumbs a {
  color: var(--text-tertiary);
}

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

.breadcrumbs .separator {
  color: var(--gray-300);
  font-size: 0.75rem;
}

.breadcrumbs .current {
  color: var(--text-secondary);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   10. Content / Typography
   -------------------------------------------------------------------------- */
.content {
  max-width: 50rem;
  min-width: 0;
}

.content h1 {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-light);
  letter-spacing: -0.01em;
}

.content h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin: var(--space-10) 0 var(--space-4);
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: var(--space-6) 0 var(--space-3);
  color: var(--text-secondary);
}

.content p {
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
  line-height: 1.7;
}

.content ul,
.content ol {
  margin: var(--space-4) 0;
  padding-left: var(--space-6);
}

.content li {
  margin-bottom: var(--space-2);
  color: var(--text-secondary);
  line-height: 1.6;
}

.content a {
  color: var(--text-brand);
  font-weight: 500;
}
.content a:hover {
  text-decoration: underline;
}

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

/* Inline code */
.content code {
  background: var(--gray-100);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  font-family: 'SFMono-Regular', 'Fira Code', 'Monaco', 'Consolas', monospace;
  font-size: 0.8125em;
  color: var(--demi-700);
  border: 1px solid var(--border-light);
}

/* Code blocks */
.content pre,
.developer-paths-copy pre {
  background: var(--bg-code);
  color: #e2e8f0;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin: var(--space-4) 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  position: relative;
  border: 1px solid var(--gray-800);
}

.content pre code,
.developer-paths-copy pre code {
  background: none;
  padding: 0;
  color: inherit;
  border: none;
  font-size: inherit;
}

/* Copy button (injected by JS) */
.copy-btn {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.5rem;
  font-size: 0.8125rem;
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.8);
}

.copy-btn.copied {
  color: var(--demi-400);
}

/* --------------------------------------------------------------------------
   11. Tables
   -------------------------------------------------------------------------- */
.content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--space-4) 0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.content th,
.content td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.875rem;
}

.content th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.content tr:last-child td {
  border-bottom: none;
}

.content tr:hover td {
  background: var(--gray-25);
}

/* --------------------------------------------------------------------------
   12. Callouts
   -------------------------------------------------------------------------- */
.callout {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  margin: var(--space-4) 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 0;
}

.callout-content {
  min-width: 0;
}

.callout-icon {
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
  color: var(--demi-600);
}

.callout-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
}

.callout::before {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.callout-info {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e40af;
}
.callout-info::before {
  content: '\f05a';
} /* circle-info */

.callout-note {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  box-shadow: var(--shadow-xs);
}
.callout-note::before {
  content: none;
}
.callout-note strong {
  color: var(--text-primary);
}
.callout-note a {
  color: var(--text-brand);
}

.callout-title {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.35;
}

.callout-body {
  margin: 0;
  color: inherit;
}

.callout-warning {
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
}
.callout-warning::before {
  content: '\f071';
} /* triangle-exclamation */

.callout-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}
.callout-error::before {
  content: '\f06a';
} /* circle-exclamation */

.callout-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}
.callout-success::before {
  content: '\f058';
} /* circle-check */

.callout p {
  margin-bottom: 0;
  color: inherit;
}
.callout strong {
  color: inherit;
}
.callout ul {
  margin: var(--space-2) 0 0;
}
.callout li {
  color: inherit;
}
.callout code {
  background: rgba(0, 0, 0, 0.06);
  color: inherit;
  border-color: rgba(0, 0, 0, 0.1);
  display: inline;
  white-space: normal;
  overflow-wrap: anywhere;
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: linear-gradient(135deg, var(--demi-800), var(--demi-950));
  color: rgba(255, 255, 255, 0.8);
  margin-top: var(--space-16);
  padding: var(--space-12) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-brand svg {
  height: 1.75rem;
  width: auto;
}

.footer-brand span {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  opacity: 0.7;
  text-transform: uppercase;
  color: var(--text-on-dark);
}

.footer-links h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--space-4);
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  padding: var(--space-1) 0;
  transition: color 0.15s;
}

.footer-links a:hover {
  color: var(--text-on-dark);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: var(--text-on-dark);
}

/* --------------------------------------------------------------------------
   14. Back-to-Portal Link (API Reference page)
   -------------------------------------------------------------------------- */
.back-link {
  position: fixed;
  top: 0.625rem;
  left: 0.625rem;
  z-index: 1000;
  background: var(--demi-600);
  color: var(--text-on-dark);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: background 0.15s;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.back-link:hover {
  background: var(--demi-700);
  color: var(--text-on-dark);
}

/* --------------------------------------------------------------------------
   15. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: 12rem 1fr;
    gap: var(--space-6);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 3.25rem;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--hero-gradient-background);
    background-color: var(--demi-800);
    background-position: var(--hero-gradient-offset-position);
    background-repeat: no-repeat;
    background-size: var(--hero-gradient-size);
    flex-direction: column;
    padding: var(--space-3) var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-lg);
  }

  .header-nav.open {
    display: flex;
  }

  .header-nav a {
    padding: var(--space-3) var(--space-3);
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero h1 {
    font-size: 2.25rem;
  }
  .hero {
    padding: var(--space-10) 0 var(--space-8);
  }

  .cards {
    grid-template-columns: 1fr;
    padding: var(--space-6) 0 var(--space-8);
  }

  .page-layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .sidebar {
    position: static;
    max-height: none;
    display: flex;
    gap: var(--space-6);
    overflow-x: auto;
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-light);
  }

  .sidebar-section {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

  .content pre,
  .developer-paths-copy pre {
    margin-left: calc(-1 * var(--space-4));
    margin-right: calc(-1 * var(--space-4));
    border-radius: 0;
  }

  .content table {
    display: block;
    overflow-x: auto;
  }
}

/* --------------------------------------------------------------------------
   16. Changelog
   -------------------------------------------------------------------------- */
.eyebrow {
  color: var(--demi-600);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
}

.changelog-preview {
  background: linear-gradient(180deg, var(--bg-surface), var(--gray-25));
  padding: var(--space-10) 0 0;
}

.changelog-preview-card {
  align-items: stretch;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: grid;
  gap: var(--space-8);
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  padding: var(--space-8);
}

.changelog-preview-copy h2 {
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: var(--space-3);
}

.changelog-preview-copy p:not(.eyebrow) {
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
  max-width: 28rem;
}

.changelog-preview-release {
  background: var(--gray-25);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.changelog-preview-meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.version-pill {
  align-items: center;
  background: var(--demi-50);
  border: 1px solid var(--demi-200);
  border-radius: 999px;
  color: var(--demi-700);
  display: inline-flex;
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1;
  padding: 0.375rem 0.75rem;
}

.changelog-preview-meta time,
.changelog-entry-heading time {
  color: var(--text-tertiary);
  font-size: 0.875rem;
  font-weight: 500;
}

.changelog-preview-release ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.changelog-preview-release li {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  padding-left: var(--space-6);
  position: relative;
}

.changelog-preview-release li + li {
  margin-top: var(--space-3);
}

.changelog-preview-release li::before {
  color: var(--demi-500);
  content: '\f058';
  font-family: 'Font Awesome 6 Free';
  font-size: 0.875rem;
  font-weight: 900;
  left: 0;
  position: absolute;
  top: 0.125rem;
}

.docs-hero {
  padding: var(--space-12) 0;
}

.docs-hero .eyebrow {
  color: var(--demi-200);
}

.docs-hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-4);
}

.docs-hero p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-left: auto;
  margin-right: auto;
  max-width: 46rem;
}

.docs-hero code {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-sm);
  color: var(--text-on-dark);
  padding: 0.125rem 0.375rem;
}

.hero-version-link {
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: var(--text-on-dark);
  display: inline-flex;
  font-size: 0.875rem;
  font-weight: 600;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding: 0.625rem 1rem;
}

.hero-version-link:hover {
  background: rgba(255, 255, 255, 0.16);
  color: var(--text-on-dark);
}

.changelog-layout {
  align-items: start;
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 15rem minmax(0, 1fr);
}

.changelog-index {
  position: sticky;
  top: calc(var(--header-height) + var(--space-8));
}

.changelog-index-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - var(--header-height) - var(--space-16));
  min-height: 0;
  padding: var(--space-4);
}

.changelog-index-card h2 {
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}

.changelog-index-scroll {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: var(--space-1);
  scrollbar-color: var(--gray-300) transparent;
  scrollbar-width: thin;
}

.changelog-index-scroll::-webkit-scrollbar {
  width: 0.375rem;
}

.changelog-index-scroll::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-full);
}

.changelog-index-group + .changelog-index-group {
  margin-top: var(--space-4);
}

.changelog-index-group-title {
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
  padding: 0 var(--space-3);
  text-transform: uppercase;
}

.changelog-index-card a {
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  display: block;
  padding: var(--space-2) var(--space-3);
}

.changelog-index-card a:hover {
  background: var(--demi-50);
  color: var(--demi-700);
  text-decoration: none;
}

.changelog-index-card span,
.changelog-index-card small {
  display: block;
}

.changelog-index-card span {
  font-size: 0.875rem;
  font-weight: 600;
}

.changelog-index-card small {
  color: var(--text-tertiary);
  font-size: 0.75rem;
}

.changelog-list {
  display: grid;
  gap: var(--space-6);
  min-width: 0;
}

.changelog-entry {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--space-8);
  scroll-margin-top: calc(var(--header-height) + var(--space-6));
}

.changelog-entry-heading {
  align-items: flex-start;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
}

.changelog-entry-label {
  color: var(--demi-600);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
  text-transform: uppercase;
}

.changelog-entry h2 {
  color: var(--text-primary);
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.changelog-entry-section + .changelog-entry-section {
  margin-top: var(--space-6);
}

.changelog-entry-section h3 {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.changelog-entry-section p,
.changelog-entry-section li {
  color: var(--text-secondary);
  line-height: 1.7;
}

.changelog-entry-section p {
  margin-bottom: var(--space-3);
}

.changelog-entry-section ul {
  margin: 0;
  padding-left: var(--space-5);
}

.changelog-entry-section li + li {
  margin-top: var(--space-2);
}

.changelog-entry-section code {
  background: var(--gray-100);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--demi-700);
  font-family: 'SFMono-Regular', 'Fira Code', 'Monaco', 'Consolas', monospace;
  font-size: 0.8125em;
  padding: 0.15rem 0.4rem;
}

@media (max-width: 1024px) {
  .changelog-preview-card,
  .changelog-layout {
    grid-template-columns: 1fr;
  }

  .changelog-index {
    position: static;
  }

  .changelog-index-card {
    display: none;
  }
}

@media (max-width: 768px) {
  .changelog-preview {
    padding-top: var(--space-6);
  }

  .changelog-preview-card,
  .changelog-entry {
    padding: var(--space-5);
  }

  .docs-hero h1 {
    font-size: 2rem;
  }

  .changelog-entry-heading {
    display: block;
  }

  .changelog-entry-heading time {
    display: block;
    margin-top: var(--space-2);
  }
}

/* --------------------------------------------------------------------------
   17. Developer portal enhancements
   -------------------------------------------------------------------------- */
.hero-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-top: var(--space-8);
}

.hero-btn {
  align-items: center;
  border-radius: var(--radius-full);
  display: inline-flex;
  font-size: 0.9375rem;
  font-weight: 700;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.75rem 1.25rem;
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s,
    transform 0.15s;
}

.hero-btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.hero-btn-primary {
  background: var(--text-on-dark);
  color: var(--demi-800);
}

.hero-btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  color: var(--demi-900);
}

.hero-btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: var(--text-on-dark);
}

.hero-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.16);
  color: var(--text-on-dark);
}

.developer-paths {
  background: linear-gradient(180deg, var(--gray-25), var(--bg-surface));
  padding: var(--space-10) 0 0;
}

.developer-paths-card {
  align-items: stretch;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: grid;
  gap: var(--space-8);
  grid-template-columns: minmax(0, 0.9fr) minmax(20rem, 1.1fr);
  overflow: hidden;
  padding: var(--space-8);
}

.developer-paths-copy h2 {
  color: var(--text-primary);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

.developer-paths-copy p:not(.eyebrow) {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.developer-paths-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}

.developer-terminal {
  background: var(--gray-900);
  border: 1px solid var(--gray-800);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  color: #ddfbef;
  overflow: hidden;
}

.developer-terminal-header {
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.5);
  display: flex;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 var(--space-4);
}

.developer-terminal-header span {
  border-radius: 50%;
  display: block;
  height: 0.625rem;
  width: 0.625rem;
}

.developer-terminal-header span:nth-child(1) {
  background: #f87171;
}
.developer-terminal-header span:nth-child(2) {
  background: #fbbf24;
}
.developer-terminal-header span:nth-child(3) {
  background: #4ade80;
}

.developer-terminal-header strong {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-left: auto;
  text-transform: uppercase;
}

.developer-terminal pre {
  color: #ddfbef;
  font-family: 'SFMono-Regular', 'Fira Code', 'Monaco', 'Consolas', monospace;
  font-size: 0.9375rem;
  line-height: 1.8;
  overflow-x: auto;
  padding: var(--space-5);
}

.developer-terminal code {
  color: inherit;
}

/* --------------------------------------------------------------------------
   18. API reference shell polish
   -------------------------------------------------------------------------- */
.api-reference-page {
  background: var(--bg-reference-shell);
}

.reference-topbar {
  align-items: center;
  background: var(--bg-reference-shell);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 10000;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.reference-back-link,
.reference-cli-link {
  align-items: center;
  border-radius: 0.625rem;
  display: inline-flex;
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  font-size: 0.8125rem;
  font-weight: 700;
  gap: 0.45rem;
  min-height: 2rem;
  padding: 0.45rem 0.7rem;
  text-decoration: none;
  white-space: nowrap;
}

.reference-back-link {
  background: var(--demi-600);
  box-shadow: var(--shadow-xs);
  color: var(--text-on-dark);
}

.reference-back-link:hover {
  background: var(--demi-700);
  color: var(--text-on-dark);
}

.reference-cli-link {
  color: rgba(255, 255, 255, 0.72);
}

.reference-cli-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-on-dark);
}

.back-link {
  display: none;
}

@media (max-width: 1024px) {
  .developer-paths-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .developer-paths {
    padding-top: var(--space-6);
  }

  .developer-paths-card {
    padding: var(--space-5);
  }

  .developer-paths-copy h2 {
    font-size: 1.5rem;
  }

  .reference-cli-link {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-actions,
  .developer-paths-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-btn {
    width: 100%;
  }

  .developer-terminal pre {
    font-size: 0.8125rem;
    padding: var(--space-4);
  }
}