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

: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;
  --semantic-success: #1f8a65;
  --semantic-error: #cf2d56;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-pill: 9999px;
}

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

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--canvas);
  color: var(--body);
  line-height: 1.5;
  letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

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

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
}

.nav-logo:hover { color: var(--primary); }

.nav-menu {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-menu li a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}

.nav-menu li a:hover { color: var(--ink); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

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

.hero {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  border-radius: var(--rounded-pill);
  padding: 4px 10px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 72px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -2.16px;
  color: var(--ink);
  max-width: 800px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 16px;
  color: var(--body);
  max-width: 540px;
  margin-bottom: 48px;
  line-height: 1.5;
}

.hero-image {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--hairline);
}

.section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 0 24px;
}

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

.section-title {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--body);
  max-width: 580px;
  line-height: 1.5;
  margin-bottom: 48px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  padding: 24px;
  transition: border-color 0.15s;
}

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

.feature-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--rounded-md);
  margin-bottom: 16px;
}

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

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 16px;
}

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

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

.info-band {
  background: var(--surface-card);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 80px 24px;
}

.info-band-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.info-band h2 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 16px;
}

.info-band p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 16px;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-list-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.info-list-num {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  color: var(--muted);
  background: var(--surface-strong);
  border-radius: var(--rounded-pill);
  padding: 4px 8px;
  min-width: 28px;
  text-align: center;
  margin-top: 2px;
}

.info-list-text strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}

.info-list-text p {
  font-size: 14px;
  color: var(--body);
  margin: 0;
}

.contact-section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-form {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  padding: 40px;
  max-width: 560px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--rounded-md);
  padding: 12px 16px;
  height: 44px;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.5;
  transition: border-color 0.15s;
}

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

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--ink);
}

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

.form-error {
  font-size: 13px;
  color: var(--semantic-error);
  margin-top: 4px;
  display: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--rounded-md);
  padding: 10px 18px;
  height: 40px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-success {
  display: none;
  background: #f0faf6;
  border: 1px solid #9fd4be;
  border-radius: var(--rounded-md);
  padding: 16px;
  font-size: 14px;
  color: var(--semantic-success);
  margin-top: 16px;
}

.article-hero {
  padding: 64px 24px 48px;
  max-width: 800px;
  margin: 0 auto;
}

.article-hero .hero-label { margin-bottom: 16px; }

.article-hero h1 {
  font-size: 48px;
  font-weight: 400;
  letter-spacing: -1.5px;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 16px;
}

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

.article-cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--hairline);
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  line-height: 1.25;
  margin-top: 48px;
  margin-bottom: 16px;
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-top: 32px;
  margin-bottom: 12px;
}

.article-body p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  letter-spacing: 0.08px;
  margin-bottom: 20px;
}

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

.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }

.article-body li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 8px;
}

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

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

.article-note {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--primary);
  border-radius: var(--rounded-md);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--body);
}

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

.article-table th {
  background: var(--surface-strong);
  color: var(--ink);
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--hairline);
}

.article-table td {
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  color: var(--body);
  background: var(--surface-card);
}

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

.related-articles {
  border-top: 1px solid var(--hairline);
  padding: 48px 24px 80px;
  max-width: 800px;
  margin: 0 auto;
}

.related-articles h2 {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.11px;
  color: var(--ink);
  margin-bottom: 24px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

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

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.4;
}

.related-card p {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
}

.related-card a {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}

.page-hero {
  padding: 64px 24px 48px;
  max-width: 800px;
  margin: 0 auto;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 400;
  letter-spacing: -1.5px;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 16px;
  color: var(--body);
  max-width: 540px;
}

.page-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.page-body h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  line-height: 1.25;
  margin-top: 48px;
  margin-bottom: 16px;
}

.page-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-top: 32px;
  margin-bottom: 12px;
}

.page-body p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 16px;
}

.page-body ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 16px;
}

.page-body li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 8px;
}

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

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

.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 24px 48px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
}

.footer-heading {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.site-footer ul { display: flex; flex-direction: column; gap: 10px; }

.site-footer ul li a,
.footer-text {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--hairline-soft);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.footer-disclaimer { font-style: italic; }

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface-card);
  border-top: 1px solid var(--hairline-strong);
  z-index: 999;
  padding: 20px 24px;
}

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

.cookie-inner p {
  font-size: 14px;
  color: var(--body);
  max-width: 680px;
}

.cookie-buttons { display: flex; gap: 12px; flex-shrink: 0; }

.btn-cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--rounded-md);
  padding: 8px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.btn-cookie-accept:hover { background: var(--primary-active); }

.btn-cookie-reject {
  background: transparent;
  color: var(--body);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--rounded-md);
  padding: 8px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  background: var(--surface-card);
}

.btn-cookie-reject:hover { color: var(--ink); border-color: var(--ink); }

@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-container { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero h1 { font-size: 56px; letter-spacing: -1.5px; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    padding: 16px 24px;
    gap: 0;
  }

  .nav-menu.is-open { display: flex; }

  .nav-menu li { width: 100%; }

  .nav-menu li a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--hairline-soft);
  }

  .nav-toggle { display: flex; }

  .info-band-inner { grid-template-columns: 1fr; gap: 32px; }

  .related-grid { grid-template-columns: 1fr; }

  .cookie-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .hero h1 { font-size: 36px; letter-spacing: -1px; }
  .article-hero h1 { font-size: 32px; letter-spacing: -0.8px; }
  .page-hero h1 { font-size: 32px; letter-spacing: -0.8px; }
  .section-title { font-size: 26px; }
  .cards-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; gap: 24px; }
  .hero { padding: 48px 16px; }
  .section { padding: 48px 16px; }
  .article-hero { padding: 40px 16px 32px; }
  .article-body { padding: 32px 16px 60px; }
  .page-hero { padding: 40px 16px 32px; }
  .page-body { padding: 0 16px 60px; }
  .info-band { padding: 48px 16px; }
  .contact-form { padding: 24px; }
}