:root {
  --primary: #4a154b;
  --primary-press: #611f69;
  --primary-tint: #592466;
  --on-primary: #ffffff;
  --ink: #1d1d1d;
  --ink-mute: #696969;
  --link-blue: #1264a3;
  --link-hover: #3860be;
  --canvas: #ffffff;
  --canvas-cream: #f4ede4;
  --canvas-lavender: #f9f0ff;
  --hairline: #e6e6e6;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 90px;
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--ink);
  background: var(--canvas);
  line-height: 1.55;
}

h1, h2, h3, h4 {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 { font-size: 2.6rem; line-height: 1.15; }
h2 { font-size: 1.75rem; line-height: 1.25; margin-top: 2.2rem; }
h3 { font-size: 1.3rem; line-height: 1.35; margin-top: 1.6rem; }

a { color: var(--link-blue); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

.top-bar {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar .logo {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.top-bar .logo span { color: var(--ink); font-weight: 400; }

.top-bar nav a {
  color: var(--ink);
  margin-left: 22px;
  font-weight: 600;
  font-size: 0.95rem;
}

.top-bar nav a:hover { color: var(--primary); text-decoration: none; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
}

.layout-shell {
  display: flex;
  max-width: 1240px;
  margin: 0 auto;
  align-items: flex-start;
}

.sidebar {
  width: 260px;
  flex-shrink: 0;
  padding: 32px 20px;
  position: sticky;
  top: 65px;
  align-self: flex-start;
  max-height: calc(100vh - 65px);
  overflow-y: auto;
}

.sidebar h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  margin-bottom: 10px;
}

.sidebar ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px 0;
}

.sidebar li { margin-bottom: 6px; }

.sidebar a {
  color: var(--ink);
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
}

.sidebar a:hover, .sidebar a.active {
  background: var(--canvas-lavender);
  color: var(--primary);
  text-decoration: none;
}

main.content {
  flex: 1;
  padding: 40px 32px 60px;
  min-width: 0;
}

.hero-band {
  background: linear-gradient(135deg, var(--canvas-cream) 0%, var(--canvas-lavender) 100%);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  margin-bottom: 32px;
}

.hero-band p.lead {
  font-size: 1.1rem;
  color: var(--ink-mute);
  max-width: 65ch;
}

.breadcrumb-nav {
  font-size: 0.85rem;
  color: var(--ink-mute);
  margin-bottom: 18px;
}

.breadcrumb-nav a { color: var(--ink-mute); }
.breadcrumb-nav a:hover { color: var(--primary); }

.toc-box {
  background: var(--canvas-cream);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin: 24px 0 32px;
  border: 1px solid var(--hairline);
}

.toc-box h4 {
  margin-top: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
}

.toc-box ol { margin: 0; padding-left: 20px; }
.toc-box li { margin-bottom: 6px; }

.card-feature {
  background: var(--canvas-cream);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin-bottom: 20px;
}

.card-feature.collapsible {
  max-height: 90px;
  overflow: hidden;
  position: relative;
}
.card-feature.collapsible.expanded { max-height: none; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.pill-btn {
  display: inline-block;
  background: var(--primary);
  color: var(--on-primary);
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
}

.pill-btn:hover { background: var(--primary-press); color: var(--on-primary); text-decoration: none; }

.pill-btn-outline {
  display: inline-block;
  background: var(--canvas);
  color: var(--primary);
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.9rem;
  border: 2px solid var(--primary);
}

.pill-btn-outline:hover { background: var(--canvas-lavender); text-decoration: none; }

figure.article-image { margin: 24px 0; }
figure.article-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
}
figure.article-image figcaption {
  font-size: 0.82rem;
  color: var(--ink-mute);
  margin-top: 8px;
}

.disclaimer-block {
  background: var(--canvas-cream);
  border-left: 3px solid var(--primary);
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--ink-mute);
  border-radius: var(--radius-sm);
  margin: 24px 0;
}

.related-content {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--hairline);
}

.related-content h3 { margin-top: 0; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.related-item {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 18px;
}

.related-item a { font-weight: 700; color: var(--ink); }
.related-item a:hover { color: var(--primary); }

details.faq-item {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 12px;
}

details.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

details.faq-item summary::-webkit-details-marker { display: none; }

details.faq-item summary::before {
  content: '+ ';
  color: var(--primary);
  font-weight: 700;
}

details.faq-item[open] summary::before { content: '– '; }

.checklist { list-style: none; padding: 0; }
.checklist li {
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}
.checklist li::before { content: '☐ '; color: var(--primary); font-weight: 700; }

.timeline { position: relative; padding-left: 28px; margin: 24px 0; }
.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--hairline);
}
.timeline-item { position: relative; margin-bottom: 22px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
}
.timeline-item h4 { margin: 0 0 4px 0; }

.contact-form { max-width: 480px; }
.contact-form label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  margin: 14px 0 6px;
}
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--hairline);
  font-family: inherit;
  font-size: 0.95rem;
}
.contact-form .error-msg {
  color: #cc4117;
  font-size: 0.82rem;
  margin-top: 4px;
  display: none;
}
.contact-form .success-msg {
  display: none;
  background: var(--canvas-lavender);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-top: 16px;
  color: #007a5a;
  font-weight: 600;
}

.site-footer {
  background: var(--primary);
  color: #d9bdde;
  padding: 48px 24px 24px;
  margin-top: 40px;
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
}

.footer-inner h5 {
  color: #ffffff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.footer-inner ul { list-style: none; padding: 0; margin: 0; }
.footer-inner li { margin-bottom: 8px; }
.footer-inner a { color: #d9bdde; font-size: 0.9rem; }
.footer-inner a:hover { color: #ffffff; }

.footer-bottom {
  max-width: 1240px;
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--primary-tint);
  font-size: 0.82rem;
  color: #d9bdde;
}

.footer-disclaimer { max-width: 900px; margin-bottom: 6px; }

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: #ffffff;
  padding: 18px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
}

.cookie-banner p { margin: 0; font-size: 0.88rem; max-width: 640px; }
.cookie-banner .cookie-actions { display: flex; gap: 10px; }

.cookie-banner button {
  border-radius: var(--radius-pill);
  padding: 8px 20px;
  font-weight: 700;
  font-size: 0.85rem;
  border: none;
  cursor: pointer;
}

.cookie-accept { background: var(--canvas); color: var(--primary); }
.cookie-reject { background: transparent; color: #ffffff; border: 1px solid #ffffff !important; }

@media (max-width: 900px) {
  .layout-shell { flex-direction: column; }
  .sidebar {
    width: 100%;
    position: static;
    max-height: none;
    display: none;
    border-bottom: 1px solid var(--hairline);
  }
  .sidebar.open { display: block; }
  .menu-toggle { display: block; }
  .top-bar nav { display: none; }
  main.content { padding: 24px 18px 40px; }
  h1 { font-size: 2rem; }
}