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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--canvas);
  color: var(--body);
  font-size: 16px;
  line-height: 1.5;
}

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);
  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%;
}
.nav-logo {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  line-height: 1.2;
}
.nav-logo span { color: var(--primary); }
.nav-links {
  display: flex;
  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 { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.2s;
}
.nav-mobile-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 16px 24px;
}
.nav-mobile-menu.open { display: block; }
.nav-mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.nav-mobile-menu a { font-size: 15px; font-weight: 500; color: var(--body); }

/* HERO */
.hero {
  padding: 80px 0;
  border-bottom: 1px solid var(--hairline);
}
.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);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 56px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -1.2px;
  max-width: 800px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  color: var(--body);
  max-width: 560px;
  line-height: 1.5;
  margin-bottom: 40px;
}
.hero-meta {
  font-size: 13px;
  color: var(--muted);
}
.hero-image {
  margin-top: 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}
.hero-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* SECTION TITLES */
.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;
  color: var(--ink);
  letter-spacing: -0.72px;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-intro {
  font-size: 16px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.5;
}
.section-divider { border: none; border-top: 1px solid var(--hairline); margin: 0; }

/* ARTICLE CARDS */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.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 24px 24px; }
.article-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}
.article-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 10px;
}
.article-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 16px;
}
.article-card-meta {
  font-size: 13px;
  color: var(--muted);
}
.read-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--hairline-strong);
  padding-bottom: 2px;
  transition: color 0.15s, border-color 0.15s;
}
.read-link:hover { color: var(--primary); border-color: var(--primary); }

/* INFO CARDS */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.info-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.info-card-num {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.info-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.3;
}
.info-card p { font-size: 14px; color: var(--body); line-height: 1.5; }

/* TWO COLUMN */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-top: 40px;
}
.two-col-text h2 {
  font-size: 36px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.72px;
  line-height: 1.2;
  margin-bottom: 16px;
}
.two-col-text p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 16px;
}
.two-col-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}
.two-col-image img { width: 100%; height: 320px; object-fit: cover; }

/* ARTICLE PAGE */
.article-page { padding: 60px 0 80px; }
.article-header { max-width: 720px; margin-bottom: 40px; }
.article-header .hero-label { margin-bottom: 16px; }
.article-header h1 {
  font-size: 40px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.72px;
  line-height: 1.2;
  margin-bottom: 16px;
}
.article-header-meta { font-size: 13px; color: var(--muted); display: flex; gap: 20px; flex-wrap: wrap; }
.article-cover {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  margin-bottom: 48px;
}
.article-body { display: grid; grid-template-columns: 720px 1fr; gap: 48px; }
.article-content { max-width: 720px; }
.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.325px;
  line-height: 1.25;
  margin: 36px 0 14px;
}
.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 10px;
  line-height: 1.4;
}
.article-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 18px;
}
.article-content ul, .article-content ol {
  padding-left: 20px;
  margin-bottom: 18px;
}
.article-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 6px;
}
.article-content a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.article-content a:hover { color: var(--primary); border-color: var(--primary); }
.article-content blockquote {
  border-left: 3px solid var(--hairline-strong);
  margin: 24px 0;
  padding: 12px 20px;
  background: var(--canvas-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.article-content blockquote p {
  font-size: 15px;
  color: var(--muted);
  font-style: italic;
  margin: 0;
}
.article-img-inline {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  margin: 24px 0;
}
.article-img-caption {
  font-size: 13px;
  color: var(--muted);
  margin-top: -16px;
  margin-bottom: 24px;
}
.article-sidebar { padding-top: 4px; }
.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: 0.3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.sidebar-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.sidebar-card li a {
  font-size: 14px;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}
.sidebar-card li a:hover { color: var(--ink); }

/* PAGE CONTENT */
.page-content { padding: 60px 0 80px; max-width: 800px; }
.page-content h1 {
  font-size: 40px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.72px;
  margin-bottom: 8px;
}
.page-content .page-updated { font-size: 13px; color: var(--muted); margin-bottom: 40px; }
.page-content h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 32px 0 12px;
}
.page-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin: 24px 0 8px;
}
.page-content p {
  font-size: 15px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 14px;
}
.page-content ul, .page-content ol {
  padding-left: 20px;
  margin-bottom: 14px;
}
.page-content li {
  font-size: 15px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 4px;
}
.page-content a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.page-content a:hover { color: var(--primary); }

/* FORM */
.contact-section { padding: 80px 0; background: var(--canvas-soft); border-top: 1px solid var(--hairline); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 {
  font-size: 36px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.72px;
  margin-bottom: 14px;
}
.contact-info p { font-size: 15px; color: var(--body); line-height: 1.6; margin-bottom: 28px; }
.contact-detail { display: flex; flex-direction: column; gap: 10px; }
.contact-detail span { font-size: 14px; color: var(--body); }
.contact-detail strong { color: var(--ink); }
.contact-form { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 32px; }
.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(--canvas);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.15s;
  height: 44px;
}
.form-group textarea { height: auto; min-height: 100px; 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-submit {
  background: var(--ink);
  color: var(--canvas);
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  height: 44px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-submit:hover { background: #3a3930; }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.form-success {
  display: none;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--success);
  margin-top: 12px;
  text-align: center;
}
.form-success.visible { display: block; }
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(247,247,244,0.3);
  border-top-color: var(--canvas);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}
.btn-submit.loading .spinner { display: block; }
.btn-submit.loading .btn-text { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* COOKIE BANNER */
#cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  background: var(--ink);
  color: var(--canvas);
  padding: 16px 24px;
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: calc(100% - 48px);
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}
#cookie-banner p { font-size: 13px; line-height: 1.5; flex: 1; color: var(--muted-soft); }
#cookie-banner p a { color: var(--canvas-soft); border-bottom: 1px solid rgba(247,247,244,0.3); }
.cookie-buttons { display: flex; gap: 8px; flex-shrink: 0; }
.btn-cookie-accept, .btn-cookie-reject {
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: background 0.15s;
}
.btn-cookie-accept { background: var(--primary); color: var(--on-primary); }
.btn-cookie-accept:hover { background: var(--primary-active); }
.btn-cookie-reject { background: rgba(247,247,244,0.12); color: var(--canvas); }
.btn-cookie-reject:hover { background: rgba(247,247,244,0.2); }
#cookie-banner.hidden { display: none; }

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 48px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
  margin-top: 10px;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col li a {
  font-size: 14px;
  color: var(--body);
  transition: color 0.15s;
}
.footer-col li a:hover { color: var(--ink); }
.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom p { font-size: 13px; color: var(--muted); }

/* BREADCRUMB */
.breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
  margin-bottom: 0;
}
.breadcrumb ol { list-style: none; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.breadcrumb li { font-size: 13px; color: var(--muted); }
.breadcrumb li a { color: var(--muted); }
.breadcrumb li a:hover { color: var(--ink); }
.breadcrumb li + li::before { content: '/'; margin-right: 6px; color: var(--hairline-strong); }

/* UTILITY */
.text-muted { color: var(--muted); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.bg-soft { background: var(--canvas-soft); }
.border-top { border-top: 1px solid var(--hairline); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-body { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 36px; letter-spacing: -0.6px; }
  .section-title { font-size: 28px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero-image img { height: 260px; }
  .two-col { grid-template-columns: 1fr; gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .articles-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  #cookie-banner { flex-direction: column; align-items: stretch; }
  .cookie-buttons { justify-content: flex-end; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero { padding: 48px 0; }
  .section { padding: 48px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .article-header h1 { font-size: 28px; }
}