*, *::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;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --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 {
  background-color: var(--canvas);
  color: var(--body);
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.11px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  padding: 6px 12px;
  border-radius: var(--rounded-sm);
  transition: background 0.15s, color 0.15s;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--rounded-sm);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.hero-band {
  background: var(--canvas);
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--hairline);
}

.hero-band .container { display: flex; flex-direction: column; align-items: flex-start; gap: 24px; max-width: 760px; }

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

.hero-band h1 {
  font-size: 56px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -1.5px;
}

.hero-band p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  max-width: 580px;
}

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

.section { padding: 80px 0; }
.section + .section { border-top: 1px solid var(--hairline); }

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

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

.section-subheading {
  font-size: 16px;
  color: var(--body);
  max-width: 560px;
  margin-bottom: 48px;
  line-height: 1.6;
}

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; gap: 12px; }

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

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
}

.card-excerpt { font-size: 14px; color: var(--body); line-height: 1.5; flex: 1; }

.card-date { font-size: 13px; color: var(--muted-soft); margin-top: auto; }

.card-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}

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

.article-header {
  background: var(--canvas);
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

.article-header .container { max-width: 760px; display: flex; flex-direction: column; gap: 20px; }

.article-header h1 {
  font-size: 42px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.72px;
}

.article-header p {
  font-size: 18px;
  color: var(--body);
  line-height: 1.6;
}

.article-meta { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.article-meta-item { font-size: 13px; color: var(--muted); }

.article-body { padding: 64px 0; }
.article-body .container { max-width: 760px; }

.article-body h2 {
  font-size: 26px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -0.325px;
  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: 1.7; margin-bottom: 20px; }

.article-body ul, .article-body ol {
  margin: 0 0 20px 24px;
  color: var(--body);
  line-height: 1.7;
  font-size: 16px;
}

.article-body li { 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-image {
  margin: 32px 0;
  border-radius: var(--rounded-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.article-image img { width: 100%; }

.article-caption { font-size: 13px; color: var(--muted); padding: 10px 16px; background: var(--canvas-soft); }

.info-box {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--primary);
  border-radius: var(--rounded-md);
  padding: 20px 24px;
  margin: 28px 0;
}

.info-box p { margin: 0; font-size: 15px; color: var(--body); }

.data-table-wrap { overflow-x: auto; margin: 28px 0; }

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

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

.related-articles { background: var(--canvas-soft); border-top: 1px solid var(--hairline); padding: 64px 0; }
.related-articles .container { max-width: 760px; }

.page-header {
  background: var(--canvas);
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

.page-header h1 {
  font-size: 42px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.72px;
}

.page-body { padding: 64px 0; }
.page-body .container { max-width: 760px; }

.page-body h2 {
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  margin-top: 40px;
  margin-bottom: 14px;
  letter-spacing: -0.11px;
}

.page-body p { font-size: 16px; color: var(--body); line-height: 1.7; margin-bottom: 18px; }
.page-body ul { margin: 0 0 18px 24px; color: var(--body); line-height: 1.7; font-size: 16px; }
.page-body li { margin-bottom: 6px; }

.contact-section { background: var(--canvas-soft); border-top: 1px solid var(--hairline); padding: 64px 0; }
.contact-section .container { max-width: 600px; }

.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: 32px; }

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }

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

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

.form-group textarea { height: auto; min-height: 100px; resize: vertical; }

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

.form-group .field-error { font-size: 13px; color: var(--error); display: none; }

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

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

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

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

.form-status { font-size: 15px; padding: 14px 18px; border-radius: var(--rounded-md); margin-top: 12px; display: none; }
.form-status.success { background: #e8f5f0; color: var(--success); border: 1px solid #b3ddd0; }
.form-status.loading { color: var(--muted); font-style: italic; }

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  z-index: 999;
  padding: 16px 24px;
}

.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.cookie-inner p { font-size: 14px; color: var(--canvas-soft); }
.cookie-inner a { color: var(--on-primary); text-decoration: underline; }

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

.cookie-actions .btn-primary { background: var(--primary); height: 36px; }
.cookie-actions .btn-secondary { background: transparent; color: var(--canvas); border-color: rgba(255,255,255,0.3); height: 36px; }
.cookie-actions .btn-secondary:hover { background: rgba(255,255,255,0.1); }

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

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand { font-size: 18px; font-weight: 600; color: var(--ink); display: block; margin-bottom: 10px; }
.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); display: block; margin-bottom: 14px; }

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a { font-size: 14px; color: var(--body); }
.footer-col ul a:hover { color: var(--ink); }

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid var(--hairline-soft);
}

.footer-bottom p { font-size: 13px; color: var(--muted); }
.footer-disclaimer { margin-top: 4px; }

.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); flex-wrap: wrap; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb-sep { color: var(--muted-soft); }

@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-container { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 12px; }
  .site-nav { position: relative; }

  .hero-band h1 { font-size: 36px; }
  .section-heading { font-size: 28px; }
  .article-header h1 { font-size: 30px; }
  .page-header h1 { font-size: 30px; }
  .card-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 480px) {
  .hero-band { padding: 48px 0; }
  .hero-band h1 { font-size: 28px; letter-spacing: -0.5px; }
  .section { padding: 48px 0; }
  .footer-container { grid-template-columns: 1fr; }
  .cookie-inner { flex-direction: column; align-items: flex-start; }
}