@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;
  --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;
}

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

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: var(--canvas);
  color: var(--body);
  line-height: 1.5;
  font-weight: 400;
}

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

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

code, pre { font-family: 'JetBrains Mono', monospace; font-size: 13px; }

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

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

.top-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.nav-brand span { color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  transition: color 0.15s;
}

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

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

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

/* HERO */
.hero {
  padding: 80px 0;
  border-bottom: 1px solid var(--hairline);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  background: var(--surface-strong);
  color: var(--ink);
  border-radius: 9999px;
  padding: 4px 10px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.72px;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  max-width: 480px;
  margin-bottom: 32px;
}

.hero-img {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  aspect-ratio: 16/10;
  object-fit: cover;
  width: 100%;
}

/* SECTION TITLE */
.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;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.72px;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  max-width: 560px;
}

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

/* ARTICLE GRID */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.15s;
}

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

.article-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.article-card-body {
  padding: 24px;
}

.article-card-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
  display: block;
}

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

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

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

/* FEATURE GRID */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
}

.feature-card-icon {
  width: 40px;
  height: 40px;
  background: var(--surface-strong);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
}

.feature-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

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

/* TWO-COL */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.two-col-img {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
}

/* ARTICLE PAGE */
.article-header { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); }
.article-header-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.article-header-tag {
  font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase;
  background: var(--surface-strong); color: var(--ink); border-radius: 9999px; padding: 4px 10px;
}
.article-header-date { font-size: 13px; color: var(--muted); }
.article-header h1 {
  font-size: 42px; font-weight: 400; color: var(--ink); line-height: 1.2;
  letter-spacing: -0.72px; margin-bottom: 20px; max-width: 720px;
}
.article-header-desc { font-size: 18px; color: var(--body); line-height: 1.6; max-width: 620px; }

.article-hero-img {
  width: 100%; border-radius: 12px; border: 1px solid var(--hairline);
  aspect-ratio: 21/9; object-fit: cover; margin: 48px 0;
}

.article-body { max-width: 720px; margin: 0 auto; padding: 0 0 80px; }
.article-body h2 {
  font-size: 26px; font-weight: 400; color: var(--ink); letter-spacing: -0.325px;
  line-height: 1.25; margin: 48px 0 16px;
}
.article-body h3 {
  font-size: 20px; font-weight: 600; color: var(--ink); margin: 32px 0 12px;
}
.article-body p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 20px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 20px; }
.article-body li { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 8px; }
.article-body a { color: var(--primary); text-decoration: underline; }
.article-body a:hover { color: var(--primary-active); }

.article-body .info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  margin: 32px 0;
}
.article-body .info-box-title {
  font-size: 14px; font-weight: 600; color: var(--ink); text-transform: uppercase;
  letter-spacing: 0.08em; margin-bottom: 12px;
}

.article-sources {
  border-top: 1px solid var(--hairline); padding-top: 32px; margin-top: 48px;
}
.article-sources h4 { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.88px; margin-bottom: 12px; }
.article-sources ul { list-style: none; padding: 0; }
.article-sources li { font-size: 14px; color: var(--body); margin-bottom: 6px; }
.article-sources a { color: var(--primary); }

/* FORM */
.contact-section { padding: 80px 0; background: var(--canvas); }
.contact-form-wrap {
  max-width: 560px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 40px;
  margin: 48px 0 0;
}
.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: 8px;
  padding: 12px 16px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  height: 44px;
  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::placeholder, .form-group textarea::placeholder { color: var(--muted-soft); }

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  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; }

.form-status { margin-top: 16px; font-size: 14px; }
.form-status.success { color: var(--semantic-success); }
.form-status.error { color: var(--semantic-error); }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  padding: 20px 24px;
  z-index: 999;
  display: none;
}
.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cookie-banner p { font-size: 14px; color: var(--canvas); line-height: 1.5; }
.cookie-banner a { color: var(--canvas); text-decoration: underline; }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }
.btn-cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
}
.btn-cookie-reject {
  background: transparent;
  color: var(--canvas);
  border: 1px solid rgba(247,247,244,0.3);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
}

/* BREADCRUMB */
.breadcrumb {
  padding: 16px 0;
  font-size: 13px;
  color: var(--muted);
  border-bottom: 1px solid var(--hairline-soft);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { margin: 0 8px; }

/* 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: 48px;
}
.footer-brand-name { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.footer-brand-name span { color: var(--primary); }
.footer-brand-desc { font-size: 14px; color: var(--body); line-height: 1.5; max-width: 260px; }
.footer-col-title { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--body); }
.footer-links a:hover { color: var(--ink); }
.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 13px; color: var(--muted); }

/* PAGE CONTENT */
.page-header { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); }
.page-header h1 {
  font-size: 42px; font-weight: 400; color: var(--ink);
  letter-spacing: -0.72px; margin-bottom: 12px;
}
.page-header-desc { font-size: 18px; color: var(--body); line-height: 1.6; }

.page-body { max-width: 720px; padding: 64px 0 80px; }
.page-body h2 { font-size: 26px; font-weight: 400; color: var(--ink); letter-spacing: -0.325px; margin: 48px 0 16px; }
.page-body h3 { font-size: 20px; font-weight: 600; color: var(--ink); margin: 32px 0 12px; }
.page-body p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 20px; }
.page-body ul, .page-body ol { padding-left: 24px; margin-bottom: 20px; }
.page-body li { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 8px; }
.page-body a { color: var(--primary); }
.page-body table { width: 100%; border-collapse: collapse; margin-bottom: 24px; font-size: 14px; }
.page-body th { background: var(--surface-strong); color: var(--ink); font-weight: 600; padding: 10px 14px; text-align: left; }
.page-body td { border-top: 1px solid var(--hairline); padding: 10px 14px; color: var(--body); }

/* DISCLAIMER */
.disclaimer {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 16px 20px;
  font-size: 13px;
  color: var(--muted);
  margin: 32px 0;
  line-height: 1.5;
}

/* RELATED ARTICLES */
.related-section { padding: 64px 0; border-top: 1px solid var(--hairline-soft); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.related-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
}
.related-card-tag { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; display: block; }
.related-card-title { font-size: 16px; font-weight: 600; color: var(--ink); line-height: 1.4; }
.related-card:hover .related-card-title { color: var(--primary); }

/* MOBILE NAV */
.mobile-nav {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 16px 24px;
  z-index: 99;
}
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; }
.mobile-nav ul li { padding: 10px 0; border-bottom: 1px solid var(--hairline-soft); }
.mobile-nav ul li:last-child { border-bottom: none; }
.mobile-nav ul li a { font-size: 16px; font-weight: 500; color: var(--ink); }

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 48px;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero h1 { font-size: 36px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 32px; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .article-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .article-header h1 { font-size: 28px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .related-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px; }
  .section-title { font-size: 26px; }
}

@media (max-width: 640px) {
  .hero { padding: 48px 0; }
  .section { padding: 48px 0; }
  .cookie-banner-inner { flex-direction: column; align-items: flex-start; }
}