@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&display=swap');

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

:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
}

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

/* NAV */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-nav .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-nav .logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.site-nav .logo span { color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
  transition: 0.2s;
}

/* HERO */
.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--hairline-soft);
}
.hero-label {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: 9999px;
  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: 560px;
  margin-bottom: 40px;
  line-height: 1.5;
}
.hero-image {
  margin-top: 48px;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  overflow: hidden;
  max-height: 420px;
  width: 100%;
  object-fit: cover;
}

/* SECTIONS */
.section { padding: 80px 0; }
.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: 16px;
}
.section-sub {
  font-size: 16px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.5;
  margin-bottom: 48px;
}
.section-divider { border: none; border-top: 1px solid var(--hairline); margin: 0; }

/* CARDS */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  color: var(--ink);
}
.card-img {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 16px;
  height: 180px;
}
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-tag {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: 9999px;
  padding: 3px 8px;
  margin-bottom: 10px;
}
.card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 8px;
}
.card p { font-size: 14px; color: var(--body); line-height: 1.5; }
.card-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--hairline-strong);
  padding-bottom: 1px;
  transition: color 0.15s;
}
.card-link:hover { color: var(--primary); border-color: var(--primary); }

/* ARTICLE PAGE */
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; padding: 64px 0 80px; }
.article-body h1 {
  font-size: 48px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -1.5px;
  color: var(--ink);
  margin-bottom: 16px;
}
.article-meta { font-size: 13px; color: var(--muted); margin-bottom: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
.article-meta span { display: flex; align-items: center; gap: 4px; }
.article-featured-img {
  border-radius: 12px;
  border: 1px solid var(--hairline);
  overflow: hidden;
  margin-bottom: 32px;
  max-height: 400px;
}
.article-featured-img img { width: 100%; height: 100%; object-fit: cover; }
.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin: 40px 0 12px;
  line-height: 1.25;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 10px;
  line-height: 1.3;
}
.article-content p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 16px; }
.article-content ul, .article-content ol { margin: 12px 0 20px 24px; color: var(--body); line-height: 1.7; font-size: 16px; }
.article-content li { margin-bottom: 6px; }
.article-content blockquote {
  border-left: 3px solid var(--hairline-strong);
  padding: 12px 20px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
  background: var(--canvas-soft);
  border-radius: 0 8px 8px 0;
}
.article-content a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.article-content a:hover { color: var(--primary); }

.article-sidebar { position: sticky; top: 80px; align-self: start; }
.sidebar-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}
.sidebar-card h4 { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.88px; margin-bottom: 12px; }
.sidebar-card ul { list-style: none; }
.sidebar-card ul li { padding: 8px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 14px; }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { color: var(--body); }
.sidebar-card ul li a:hover { color: var(--ink); }

/* INFO BOX */
.info-box {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 20px 24px;
  margin: 28px 0;
}
.info-box h4 { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 10px; }
.info-box ul { color: var(--body); font-size: 15px; padding-left: 20px; line-height: 1.7; }

/* FORMS */
.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,
.form-group select {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  height: 44px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}
.form-group textarea { height: auto; resize: vertical; min-height: 120px; }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--ink); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted-soft); }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 10px 18px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s;
}
.btn-secondary:hover { border-color: var(--ink); }

.form-notice {
  font-size: 13px;
  color: var(--muted);
  margin-top: 10px;
  padding: 12px 16px;
  background: var(--canvas-soft);
  border-radius: 6px;
  border: 1px solid var(--hairline-soft);
}
.form-success {
  color: var(--success);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 16px;
  background: #f0faf6;
  border: 1px solid #a3d9c5;
  border-radius: 8px;
  display: none;
}
.form-success.visible { display: block; }

/* FACTS GRID */
.facts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); border-radius: 12px; overflow: hidden; margin: 48px 0; }
.fact-item { background: var(--surface-card); padding: 28px 24px; }
.fact-num { font-size: 36px; font-weight: 400; letter-spacing: -0.72px; color: var(--ink); margin-bottom: 4px; }
.fact-label { font-size: 14px; color: var(--body); }

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 48px;
}
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 18px; font-weight: 600; color: var(--ink); margin-bottom: 10px; display: block; }
.footer-brand .logo span { color: var(--primary); }
.footer-brand p { font-size: 14px; color: var(--body); max-width: 240px; line-height: 1.6; }
.footer-col h5 { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 14px; color: var(--body); transition: color 0.15s; }
.footer-col ul li a:hover { color: var(--ink); }
.footer-bottom { border-top: 1px solid var(--hairline-soft); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 13px; color: var(--muted); }
.footer-bottom a { font-size: 13px; color: var(--muted); }
.footer-bottom a:hover { color: var(--ink); }

/* COOKIE BANNER */
#cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--canvas);
  border-radius: 12px;
  padding: 20px 24px;
  max-width: 560px;
  width: calc(100% - 48px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  z-index: 1000;
  box-shadow: 0 2px 16px rgba(38,37,30,0.18);
}
#cookie-banner p { font-size: 14px; line-height: 1.5; color: #d4d3cc; }
#cookie-banner a { color: var(--canvas); border-bottom: 1px solid rgba(255,255,255,0.3); }
.cookie-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  height: 36px;
}
.cookie-accept:hover { background: var(--primary-active); }
.cookie-reject {
  background: transparent;
  color: var(--canvas);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  height: 36px;
}
.cookie-reject:hover { border-color: rgba(255,255,255,0.5); }

/* PAGE HEADER */
.page-header { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline-soft); }
.page-header h1 {
  font-size: 48px;
  font-weight: 400;
  letter-spacing: -1.5px;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 12px;
}
.page-header p { font-size: 16px; color: var(--body); max-width: 560px; }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-content h2 { font-size: 26px; font-weight: 400; letter-spacing: -0.325px; color: var(--ink); margin: 32px 0 12px; }
.about-content p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 16px; }
.about-img { border-radius: 12px; border: 1px solid var(--hairline); overflow: hidden; }

/* PROSE */
.prose h2 { font-size: 26px; font-weight: 400; letter-spacing: -0.325px; color: var(--ink); margin: 40px 0 12px; line-height: 1.25; }
.prose h3 { font-size: 20px; font-weight: 600; color: var(--ink); margin: 28px 0 10px; }
.prose p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 16px; }
.prose ul, .prose ol { margin: 12px 0 20px 24px; color: var(--body); line-height: 1.7; font-size: 16px; }
.prose li { margin-bottom: 6px; }
.prose a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.prose a:hover { color: var(--primary); }

/* RELATED ARTICLES */
.related-section { padding: 64px 0; border-top: 1px solid var(--hairline-soft); }
.related-section .section-title { font-size: 26px; margin-bottom: 32px; }

/* BREADCRUMB */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); padding: 20px 0 0; flex-wrap: wrap; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb-sep { color: var(--hairline-strong); }

/* SPINNER */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero h1 { font-size: 56px; letter-spacing: -1.5px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 38px; letter-spacing: -1px; }
  .section-title { font-size: 28px; }
  .card-grid, .card-grid-2 { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); padding: 16px 24px; gap: 16px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .article-body h1 { font-size: 32px; letter-spacing: -0.5px; }
  .page-header h1 { font-size: 36px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 640px) {
  .hero { padding: 48px 0 40px; }
  .section { padding: 48px 0; }
  .hero h1 { font-size: 32px; }
}