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

:root {
  --ca-indigo: #4f46e5;
  --ca-indigo-light: #4f46e5;
  --ca-indigo-dark: #3730a3;
  --ca-violet: #7c3aed;
  --ca-emerald: #059669;
  --ca-emerald-light: #34d399;
  --ca-white: #ffffff;
  --ca-gray-50: #f9fafb;
  --ca-gray-100: #f3f4f6;
  --ca-gray-200: #e5e7eb;
  --ca-gray-700: #374151;
  --ca-gray-800: #1f2937;
  --ca-gray-900: #111827;
  --ca-focus: #f59e0b;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;
  --max-width: 72rem;
  --transition: 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ca-white: #111827;
    --ca-gray-50: #1f2937;
    --ca-gray-100: #1f2937;
    --ca-gray-200: #374151;
    --ca-gray-700: #d1d5db;
    --ca-gray-800: #e5e7eb;
    --ca-gray-900: #f9fafb;
    --ca-indigo-light: #818cf8;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

html { font-size: 100%; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  font-family: var(--font-sans);
  color: var(--ca-gray-800);
  background: var(--ca-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* === Visually Hidden === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* === Focus Styles === */
:focus-visible {
  outline: 3px solid var(--ca-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

/* === Skip Link === */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--ca-gray-900);
  color: var(--ca-gray-50);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 8px 8px;
  font-weight: 600;
  z-index: 1000;
  text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus {
  top: 0;
  outline: 3px solid var(--ca-focus);
  outline-offset: 2px;
}

/* === Layout === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* === Header === */
.site-header {
  background: linear-gradient(135deg, var(--ca-indigo-dark) 0%, var(--ca-violet) 100%);
  color: var(--ca-gray-50);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.logo-mark {
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255,255,255,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ca-emerald-light);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-nav > ul {
  list-style: none;
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.header-nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.header-nav a:hover,
.header-nav a:focus-visible {
  background: rgba(255,255,255,0.15);
  color: var(--ca-gray-50);
}

/* === Nav Dropdown === */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  background: none;
  border: none;
  color: rgba(255,255,255,0.85);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown-toggle::after {
  content: '';
  display: inline-block;
  width: 0.35em;
  height: 0.35em;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-left: 0.4em;
  vertical-align: middle;
  transition: transform var(--transition);
}

.nav-dropdown-toggle[aria-expanded="true"]::after {
  transform: rotate(-135deg);
}

.nav-dropdown-toggle:hover,
.nav-dropdown-toggle:focus-visible {
  background: rgba(255,255,255,0.15);
  color: var(--ca-gray-50);
}

.header-nav .nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 12rem;
  background: var(--ca-indigo-dark);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  padding: 0.4rem 0;
  margin-top: 0.25rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  z-index: 200;
  list-style: none;
}

.header-nav .nav-dropdown-menu.open {
  display: block;
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.5rem 1.25rem;
  border-radius: 0;
  font-size: 0.92rem;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus-visible {
  background: rgba(255,255,255,0.18);
  border-left: 3px solid rgba(255,255,255,0.5);
}

/* === Hero === */
.hero {
  background: linear-gradient(160deg, var(--ca-indigo-dark) 0%, var(--ca-violet) 50%, var(--ca-indigo) 100%);
  color: var(--ca-gray-50);
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero-accent {
  background: linear-gradient(90deg, var(--ca-emerald-light), #a5f3fc);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  max-width: 40rem;
  margin: 0 auto 2.5rem;
  opacity: 0.92;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* === WIP Community Banner === */
.wip-banner {
  background: linear-gradient(135deg, var(--ca-emerald) 0%, var(--ca-emerald-dark, #059669) 100%);
  color: #fff;
  padding: 2rem 0;
  text-align: center;
}
.wip-banner p {
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 48rem;
  margin: 0 auto;
}
.wip-banner .btn {
  background: #fff;
  color: #047857;
  font-weight: 700;
}
.wip-banner .btn:hover { opacity: 0.9; }

@media (prefers-color-scheme: dark) {
  .wip-banner {
    background: linear-gradient(135deg, #065f46 0%, #064e3b 100%);
  }
}

/* === Workshop Banner === */
.workshop-banner {
  background: linear-gradient(160deg, #1e1b4b 0%, #312e81 40%, #4c1d95 100%);
  color: #f5f3ff;
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.workshop-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(124,58,237,0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(5,150,105,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.workshop-inner {
  position: relative;
  max-width: 48rem;
  margin: 0 auto;
}
.workshop-badge {
  display: inline-block;
  background: rgba(167,139,250,0.2);
  border: 1px solid rgba(167,139,250,0.4);
  color: #c4b5fd;
  padding: 0.4rem 1.25rem;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.workshop-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  background: linear-gradient(90deg, #f5f3ff, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.workshop-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.7;
  opacity: 0.9;
  margin-bottom: 2rem;
}
.workshop-details {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.workshop-detail {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.workshop-detail-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #c4b5fd;
}
.workshop-detail-value {
  font-size: 1rem;
  font-weight: 600;
}
.workshop-pitch {
  font-size: 1.15rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  color: #e0e7ff;
}
.workshop-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.workshop-btn-register {
  background: #059669;
  color: #fff;
  font-size: 1.15rem;
  padding: 1rem 2.5rem;
  border-radius: 12px;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(5,150,105,0.4);
}
.workshop-btn-register:hover {
  background: #047857;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(5,150,105,0.5);
}
.workshop-btn-details {
  background: transparent;
  color: #c4b5fd;
  border: 2px solid rgba(167,139,250,0.4);
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
}
.workshop-btn-details:hover {
  background: rgba(167,139,250,0.1);
  border-color: rgba(167,139,250,0.7);
}
.workshop-cta-note {
  font-size: 0.9rem;
  opacity: 0.7;
  font-style: italic;
}
.nav-workshop-link {
  background: rgba(5,150,105,0.25) !important;
  color: #34d399 !important;
  border-radius: 6px;
  font-weight: 600 !important;
}
.nav-workshop-link:hover {
  background: rgba(5,150,105,0.4) !important;
}
@media (prefers-color-scheme: dark) {
  .workshop-banner {
    background: linear-gradient(160deg, #0f0d2e 0%, #1e1b4b 40%, #2e1065 100%);
  }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 10px;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.btn-primary {
  background: #047857;
  color: var(--ca-gray-50);
}

.btn-primary:hover { background: #065f46; }

.btn-outline {
  background: transparent;
  color: var(--ca-gray-50);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

/* === Sections === */
section { padding: 5rem 0; }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--ca-gray-900);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.15rem;
  color: var(--ca-gray-700);
  max-width: 36rem;
  margin: 0 auto;
}

.bg-alt { background: var(--ca-gray-50); }

/* === Stats Bar === */
.stats-bar {
  background: var(--ca-gray-900);
  color: var(--ca-gray-50);
  padding: 2.5rem 0;
}

@media (prefers-color-scheme: dark) {
  .stats-bar { background: #0f172a; }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 2rem;
  text-align: center;
  margin: 0;
  padding: 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--ca-emerald-light);
  display: block;
  order: -1;
  margin: 0;
}

.stat-label {
  font-size: 0.95rem;
  color: #b0b8c4;
  margin-top: 0.25rem;
}

/* === Feature Cards === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--ca-white);
  border: 1px solid var(--ca-gray-200);
  border-radius: 16px;
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ca-gray-900);
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--ca-gray-700);
  font-size: 0.98rem;
}

/* === Accordions === */
.accordion-group {
  max-width: 52rem;
  margin: 0 auto;
}

.accordion-group details {
  border: 1px solid var(--ca-gray-200);
  border-radius: 12px;
  margin-bottom: 1rem;
  background: var(--ca-white);
  overflow: hidden;
}

.accordion-group summary {
  padding: 1.25rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ca-gray-900);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition);
}

.accordion-group summary::-webkit-details-marker { display: none; }

.accordion-group summary::after {
  content: '';
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  border-right: 2.5px solid currentColor;
  border-bottom: 2.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.accordion-group details[open] > summary::after {
  transform: rotate(-135deg);
}

.accordion-group summary:hover {
  background: var(--ca-gray-50);
}

.accordion-group .accordion-body {
  padding: 0 1.5rem 1.5rem;
}

.accordion-group .accordion-body p {
  margin-bottom: 1rem;
  color: var(--ca-gray-700);
  font-size: 0.95rem;
}

.agent-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.agent-table th {
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid var(--ca-gray-200);
  text-align: left;
  font-weight: 700;
  color: var(--ca-gray-900);
}

.agent-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--ca-gray-200);
  vertical-align: top;
}

.agent-table td:first-child,
.agent-table th:first-child {
  font-weight: 600;
  color: var(--ca-gray-900);
  white-space: nowrap;
  width: 12rem;
}

.agent-table td:last-child,
.agent-table th:last-child {
  color: var(--ca-gray-700);
}

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

.agent-table .method-row td {
  padding: 0;
  border-bottom: 1px solid var(--ca-gray-200);
}

.agent-table .method-row:last-child td {
  border-bottom: none;
}

.method-detail {
  margin: 0;
  border: none;
  border-radius: 0;
  background: var(--ca-gray-50);
}

.method-detail summary {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ca-indigo);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
}

.method-detail summary::-webkit-details-marker { display: none; }

.method-detail summary::before {
  content: '\25B8';
  margin-right: 0.5rem;
  transition: transform var(--transition);
  display: inline-block;
}

.method-detail[open] > summary::before {
  transform: rotate(90deg);
}

.method-detail .method-body {
  padding: 0.25rem 0.75rem 0.75rem 1.5rem;
  font-size: 0.85rem;
  color: var(--ca-gray-700);
  line-height: 1.6;
}

.method-detail .method-body ul {
  margin: 0.25rem 0 0.5rem 1rem;
  padding: 0;
}

.method-detail .method-body li {
  margin-bottom: 0.25rem;
}

.method-detail .method-body strong {
  color: var(--ca-gray-900);
}

@media (prefers-color-scheme: dark) {
  .method-detail { background: var(--ca-gray-800); }
  .method-detail summary { color: var(--ca-indigo-light); }
}

@media (max-width: 48rem) {
  .agent-table td:first-child,
  .agent-table th:first-child { width: auto; white-space: normal; }
}

/* === Repo Showcase === */
.repo-card {
  background: linear-gradient(135deg, var(--ca-indigo-dark), var(--ca-violet));
  border-radius: 20px;
  padding: 3rem;
  color: var(--ca-gray-50);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

@media (max-width: 48rem) {
  .repo-card { grid-template-columns: 1fr; text-align: center; }
}

.repo-card h3 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.repo-card p {
  font-size: 1.05rem;
  color: #c4cad3;
  margin-bottom: 1.5rem;
  max-width: 36rem;
}

.repo-meta {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: #b0b8c4;
  padding: 0;
}

@media (max-width: 48rem) {
  .repo-meta { justify-content: center; }
}

.repo-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* === Contribute Section === */
.contribute-section {
  background: linear-gradient(160deg, var(--ca-gray-900) 0%, #1e1b4b 100%);
  color: var(--ca-gray-50);
  padding: 6rem 0;
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .contribute-section { background: linear-gradient(160deg, #0f172a 0%, #1e1b4b 100%); }
}

.contribute-section h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.contribute-section p {
  font-size: 1.15rem;
  max-width: 40rem;
  margin: 0 auto 1rem;
  color: #c4cad3;
}

.contribute-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 2rem;
  margin: 3rem 0;
  text-align: center;
}

.step {
  padding: 1.5rem;
}

.step-number {
  width: 3rem;
  height: 3rem;
  background: var(--ca-indigo-light);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.95rem;
  color: #b0b8c4;
}

.contribute-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

/* === Contributors === */
.contributors-section {
  background: var(--ca-gray-50);
  padding: 4rem 0;
  text-align: center;
}
@media (prefers-color-scheme: dark) {
  .contributors-section { background: var(--ca-gray-900); }
}
.contributors-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 1rem;
}
.contributors-section > .container > p {
  max-width: 48rem;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ca-gray-700);
}
.contributors-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 36rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.75rem 2rem;
}
.contributors-list li {
  font-size: 1.05rem;
  font-weight: 600;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--ca-gray-200);
}
@media (prefers-color-scheme: dark) {
  .contributors-list li { border-bottom-color: var(--ca-gray-200); }
  .contributors-section > .container > p { color: var(--ca-gray-400); }
}

/* === Install Code Block === */
.install-block {
  background: var(--ca-gray-900);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  max-width: 44rem;
  margin: 2rem auto;
  text-align: left;
  overflow-x: auto;
  position: relative;
}

@media (prefers-color-scheme: dark) {
  .install-block { background: #0f172a; border: 1px solid var(--ca-gray-200); }
}

.install-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ca-emerald-light);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.install-block code {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ca-gray-50);
  white-space: pre-wrap;
  word-break: break-all;
  display: block;
  padding-right: 3.5rem;
}

@media (prefers-color-scheme: dark) {
  .install-block code { color: #e2e8f0; }
}

.copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  color: var(--ca-gray-50);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  min-height: 1.5rem;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.copy-btn:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
}

.copy-btn.copied {
  background: var(--ca-emerald);
  border-color: var(--ca-emerald);
  color: #fff;
}

/* === Footer === */
.site-footer {
  background: var(--ca-gray-900);
  color: var(--ca-gray-50);
  padding: 3rem 0 2rem;
}

@media (prefers-color-scheme: dark) {
  .site-footer { background: #0f172a; border-top: 1px solid var(--ca-gray-200); }
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--ca-gray-50);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-copy {
  font-size: 0.85rem;
  color: #9ca3af;
  margin-top: 2rem;
  text-align: center;
}

/* === Accessibility Statement === */
.a11y-statement {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 2rem;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: #b0b8c4;
  text-align: center;
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
}

/* === Back to Top === */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 2px solid var(--ca-gray-200);
  background: var(--ca-white);
  color: var(--ca-gray-800);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition), background var(--transition);
  z-index: 50;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--ca-gray-100); }
@media (prefers-reduced-motion: reduce) {
  .back-to-top { transition: none; }
}

/* === Accordion Controls === */
.accordion-controls {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  max-width: 52rem;
  margin: 0 auto 1rem;
}

.accordion-controls button {
  background: var(--ca-white);
  border: 1px solid var(--ca-gray-200);
  border-radius: 6px;
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ca-gray-700);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), border-color var(--transition);
}
.accordion-controls button:hover { background: var(--ca-gray-100); border-color: var(--ca-gray-700); }

/* === Search Filter === */
.search-filter {
  max-width: 52rem;
  margin: 0 auto 1.5rem;
}
.search-filter label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ca-gray-700);
  margin-bottom: 0.35rem;
}
.search-filter input {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 2px solid var(--ca-gray-200);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--ca-gray-800);
  background: var(--ca-white);
  transition: border-color var(--transition);
}
.search-filter input:focus {
  border-color: var(--ca-indigo);
  outline: 3px solid var(--ca-focus);
  outline-offset: 2px;
}
.search-status {
  font-size: 0.85rem;
  color: var(--ca-gray-700);
  margin-top: 0.5rem;
  min-height: 1.2em;
}

/* === Active Nav (Scroll Spy) === */
.header-nav a.nav-active,
.nav-dropdown-toggle.nav-active {
  background: rgba(255,255,255,0.2);
  color: var(--ca-gray-50);
}

/* === FAQ Section === */
.faq-section { padding: 5rem 0; }
.faq-list {
  max-width: 48rem;
  margin: 0 auto;
}
.faq-list details {
  border: 1px solid var(--ca-gray-200);
  border-radius: 12px;
  margin-bottom: 0.75rem;
  background: var(--ca-white);
  overflow: hidden;
}
.faq-list summary {
  padding: 1.1rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ca-gray-900);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition);
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: '';
  display: inline-block;
  width: 0.45em;
  height: 0.45em;
  border-right: 2.5px solid currentColor;
  border-bottom: 2.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}
.faq-list details[open] > summary::after { transform: rotate(-135deg); }
.faq-list summary:hover { background: var(--ca-gray-50); }
.faq-list .faq-body {
  padding: 0 1.5rem 1.25rem;
  color: var(--ca-gray-700);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* === Changelog === */
.changelog-section { background: var(--ca-gray-50); padding: 5rem 0; }
@media (prefers-color-scheme: dark) { .changelog-section { background: var(--ca-gray-900); } }
.changelog-list {
  max-width: 48rem;
  margin: 0 auto;
  list-style: none;
  padding: 0;
  border-left: 3px solid var(--ca-indigo-light);
}
.changelog-item {
  padding: 1.25rem 1.5rem;
  position: relative;
}
.changelog-item::before {
  content: '';
  position: absolute;
  left: -0.55rem;
  top: 1.6rem;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--ca-indigo-light);
  border-radius: 50%;
  border: 2px solid var(--ca-gray-50);
}
@media (prefers-color-scheme: dark) {
  .changelog-item::before { border-color: var(--ca-gray-900); }
}
.changelog-date {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ca-indigo-light);
  display: block;
  margin-bottom: 0.25rem;
}
.changelog-item p {
  color: var(--ca-gray-700);
  font-size: 0.95rem;
  margin: 0;
}

/* === Demo Snippet === */
.demo-section { padding: 5rem 0; }
.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 56rem;
  margin: 0 auto;
}
@media (max-width: 48rem) { .demo-grid { grid-template-columns: 1fr; } }
.demo-panel {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--ca-gray-200);
}
.demo-panel-header {
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  font-size: 0.9rem;
}
.demo-bad .demo-panel-header {
  background: #fef2f2;
  color: #991b1b;
  border-bottom: 2px solid #fca5a5;
}
.demo-good .demo-panel-header {
  background: #f0fdf4;
  color: #166534;
  border-bottom: 2px solid #86efac;
}
@media (prefers-color-scheme: dark) {
  .demo-bad .demo-panel-header { background: #451a1a; color: #fca5a5; border-color: #7f1d1d; }
  .demo-good .demo-panel-header { background: #14332a; color: #86efac; border-color: #166534; }
}
.demo-panel pre {
  margin: 0;
  padding: 1.25rem;
  background: var(--ca-gray-900);
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.65;
  overflow-x: auto;
  white-space: pre;
}
@media (prefers-color-scheme: dark) {
  .demo-panel pre { background: #0f172a; }
}
.demo-comment { color: #94a3b8; }
.demo-tag { color: #7dd3fc; }
.demo-attr { color: #c4b5fd; }
.demo-val { color: #86efac; }
.demo-err { color: #fca5a5; }

/* === Responsive === */
@media (max-width: 48rem) {
  .hero { padding: 4rem 0 3.5rem; }
  section { padding: 3.5rem 0; }
  .repo-card { padding: 2rem; }
}