:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --primary: #f54e00;
  --primary-active: #d04200;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --success: #1f8a65;
  --error: #cf2d56;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 9999px;
  --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background-color: var(--canvas);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }

img { max-width: 100%; height: auto; display: block; }

ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 64px;
}

.site-logo {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

.site-logo span { color: var(--primary); }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav > ul > li { position: relative; }

.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  display: block;
  transition: background 0.15s, color 0.15s;
}

.main-nav a:hover {
  background: var(--surface-strong);
  color: var(--ink);
}

.main-nav .has-dropdown .dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  min-width: 260px;
  padding: 6px;
  box-shadow: 0 4px 16px rgba(38,37,30,0.08);
  z-index: 200;
}

.main-nav .has-dropdown:hover .dropdown { display: block; }

.main-nav .dropdown li a {
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 400;
  padding: 8px 12px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--radius-md);
  padding: 10px 18px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: background 0.15s;
}

.btn-secondary:hover { background: var(--surface-strong); }

.hero-band {
  padding: 80px 0;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline-soft);
}

.hero-band h1 {
  font-family: var(--font-sans);
  font-size: 56px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ink);
  max-width: 760px;
  margin-bottom: 20px;
}

.hero-band .hero-lead {
  font-size: 18px;
  color: var(--body);
  max-width: 600px;
  margin-bottom: 12px;
  line-height: 1.6;
}

.hero-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 48px;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  margin-bottom: 20px;
}

section { padding: 80px 0; }

section + section { border-top: 1px solid var(--hairline-soft); }

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.section-title {
  font-size: 36px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 20px;
}

.section-lead {
  font-size: 16px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.6;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
}

.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.15s;
}

.article-card:hover { border-color: var(--hairline-strong); }

.article-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.article-card-body { padding: 20px; }

.article-card-meta {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.article-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.35;
}

.article-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 16px;
}

.article-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}

.article-link:hover { color: var(--primary-active); }

.article-hero {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--hairline);
}

.article-hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
  display: block;
}

.article-hero h1 {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.8px;
  color: var(--ink);
  max-width: 760px;
  margin-bottom: 20px;
}

.article-hero .article-desc {
  font-size: 18px;
  color: var(--body);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.article-byline {
  font-size: 13px;
  color: var(--muted);
}

.article-body {
  padding: 48px 0 80px;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin: 40px 0 16px;
  line-height: 1.25;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 12px;
  line-height: 1.35;
}

.article-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  padding-left: 20px;
  margin-bottom: 20px;
}

.article-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 6px;
  list-style: disc;
}

.article-content ol li { list-style: decimal; }

.article-content strong { color: var(--ink); font-weight: 600; }

.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }

.article-content a:hover { color: var(--primary-active); }

.article-img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  margin: 32px 0;
}

.article-img-caption {
  font-size: 13px;
  color: var(--muted);
  margin-top: -24px;
  margin-bottom: 32px;
  font-style: italic;
}

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

.info-box h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-box p, .info-box li {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
}

.info-box ul { padding-left: 18px; }
.info-box li { list-style: disc; margin-bottom: 4px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.data-table th {
  background: var(--surface-strong);
  color: var(--ink);
  font-weight: 600;
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--hairline-strong);
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--hairline-soft);
  color: var(--body);
}

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

.data-table tr:nth-child(even) td { background: var(--canvas-soft); }

.sidebar { position: sticky; top: 80px; }

.sidebar-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-card h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.sidebar-card ul li {
  border-bottom: 1px solid var(--hairline-soft);
  padding: 8px 0;
}

.sidebar-card ul li:last-child { border-bottom: none; }

.sidebar-card ul li a {
  font-size: 14px;
  color: var(--body);
}

.sidebar-card ul li a:hover { color: var(--ink); }

.contact-section {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-section h2 {
  font-size: 26px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: -0.325px;
}

.contact-section p {
  font-size: 15px;
  color: var(--body);
  margin-bottom: 28px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  height: 44px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--ink);
  transition: border-color 0.15s;
  outline: none;
}

.form-group textarea {
  height: auto;
  min-height: 120px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--ink);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--muted-soft);
}

.form-message {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  margin-top: 12px;
}

.form-message.success {
  background: #edf7f3;
  color: var(--success);
  border: 1px solid #b3deca;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.page-hero {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--hairline);
}

.page-hero h1 {
  font-size: 40px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.8px;
  line-height: 1.15;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 18px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.6;
}

.page-content {
  padding: 48px 0 80px;
  max-width: 800px;
}

.page-content h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 36px 0 12px;
}

.page-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 16px;
}

.page-content ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.page-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.7;
  list-style: disc;
  margin-bottom: 6px;
}

.page-updated {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 32px;
}

.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 32px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--body);
  margin-top: 12px;
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--body);
}

.footer-col ul li a:hover { color: var(--ink); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--muted);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface-card);
  border-top: 1px solid var(--hairline);
  padding: 16px 24px;
  z-index: 1000;
}

.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-inner p {
  font-size: 14px;
  color: var(--body);
}

.cookie-inner a { color: var(--primary); text-decoration: underline; }

.cookie-buttons { display: flex; gap: 10px; flex-shrink: 0; }

.related-articles { margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--hairline); }

.related-articles h3 {
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 24px;
  letter-spacing: -0.3px;
}

.stats-band {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  margin-top: 40px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.stat-item { text-align: center; }

.stat-num {
  font-size: 36px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -1px;
  display: block;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

.divider { border: none; border-top: 1px solid var(--hairline-soft); margin: 32px 0; }

@media (max-width: 1024px) {
  .hero-band h1 { font-size: 42px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--surface-card);
    border-bottom: 1px solid var(--hairline);
    padding: 12px;
    z-index: 99;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 2px; }
  .main-nav .has-dropdown .dropdown { display: none; position: static; box-shadow: none; border: none; background: var(--canvas-soft); border-radius: var(--radius-sm); margin-top: 2px; padding: 4px; }
  .main-nav .has-dropdown.open .dropdown { display: block; }
  .hero-band { padding: 48px 0; }
  .hero-band h1 { font-size: 32px; letter-spacing: -0.8px; }
  section { padding: 48px 0; }
  .section-title { font-size: 28px; }
  .card-grid, .card-grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; }
  .article-hero h1 { font-size: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .contact-section { padding: 24px; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero-band h1 { font-size: 28px; }
}