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

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

:root {
  --color-primary: #181d26;
  --color-primary-active: #0d1218;
  --color-canvas: #ffffff;
  --color-surface-soft: #f8fafc;
  --color-surface-strong: #e0e2e6;
  --color-surface-dark: #181d26;
  --color-ink: #181d26;
  --color-body: #333840;
  --color-muted: #41454d;
  --color-hairline: #dddddd;
  --color-on-primary: #ffffff;
  --color-link: #1b61c9;
  --color-link-active: #1a3866;
  --color-signature-coral: #aa2d00;
  --color-signature-forest: #0a2e0e;
  --color-signature-cream: #f5e9d4;
  --color-signature-peach: #fcab79;
  --color-signature-mint: #a8d8c4;
  --rounded-xs: 2px;
  --rounded-sm: 6px;
  --rounded-md: 10px;
  --rounded-lg: 12px;
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 96px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-body);
  background: var(--color-canvas);
}

a { color: var(--color-link); text-decoration: none; }
a:hover { color: var(--color-link-active); }

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

ul { list-style: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-xxl);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-logo {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.site-nav a {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-body);
  white-space: nowrap;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.hero-band {
  padding: var(--spacing-section) 0;
  background: var(--color-canvas);
}

.hero-band .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-content {}

.hero-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

.hero-title {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
}

.hero-sub {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: var(--spacing-xl);
}

.hero-image img {
  border-radius: var(--rounded-md);
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.section {
  padding: var(--spacing-section) 0;
}

.section-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
}

.section-sub {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  max-width: 640px;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

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

.article-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-card-body {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-card-tag {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xs);
}

.article-card-title {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}

.article-card-title a { color: inherit; }
.article-card-title a:hover { color: var(--color-link); }

.article-card-excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
  flex: 1;
  margin-bottom: var(--spacing-md);
}

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

.signature-coral-card {
  background: var(--color-signature-coral);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  color: var(--color-on-primary);
}

.signature-coral-card h2 {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  margin-bottom: var(--spacing-lg);
}

.signature-coral-card p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
}

.signature-forest-card {
  background: var(--color-signature-forest);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  color: var(--color-on-primary);
}

.signature-forest-card h2 {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  margin-bottom: var(--spacing-lg);
}

.signature-forest-card p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
}

.cream-callout {
  background: var(--color-signature-cream);
  border-radius: var(--rounded-md);
  padding: var(--spacing-lg);
}

.hero-card-dark {
  background: var(--color-surface-dark);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  color: var(--color-on-primary);
}

.hero-card-dark h2 {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  margin-bottom: var(--spacing-lg);
}

.hero-card-dark p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.8);
}

.cta-band-light {
  background: var(--color-surface-strong);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

.cta-band-light h2 {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

.demo-card {
  border-radius: var(--rounded-md);
  padding: var(--spacing-md);
  overflow: hidden;
}

.demo-card img {
  border-radius: var(--rounded-sm);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  margin-bottom: var(--spacing-sm);
}

.demo-card-label {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}

.demo-card-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-body);
}

.demo-card-peach { background: var(--color-signature-peach); }
.demo-card-mint { background: var(--color-signature-mint); }
.demo-card-cream { background: var(--color-signature-cream); }

.contact-section { padding: var(--spacing-section) 0; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group { display: flex; flex-direction: column; gap: var(--spacing-xs); }

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

.form-group input {
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 14px;
  font-family: inherit;
  padding: 12px var(--spacing-md);
  height: 44px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus { border-color: #458fff; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 16px;
  font-weight: 500;
  font-family: inherit;
  padding: 16px var(--spacing-lg);
  border: none;
  border-radius: var(--rounded-lg);
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.btn-primary:hover { background: var(--color-primary-active); color: var(--color-on-primary); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 16px;
  font-weight: 500;
  font-family: inherit;
  padding: 16px var(--spacing-lg);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.btn-secondary:hover { background: var(--color-surface-soft); color: var(--color-ink); }

.contact-info h3 {
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
}

.contact-info p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-body);
}

.contact-info a { color: var(--color-link); }

.article-hero {
  padding: var(--spacing-section) 0 var(--spacing-xxl);
  background: var(--color-canvas);
}

.article-hero-inner { max-width: 760px; }

.article-hero-tag {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

.article-hero-title {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
}

.article-hero-sub {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: var(--spacing-xl);
}

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

.article-featured-img {
  width: 100%;
  border-radius: var(--rounded-md);
  aspect-ratio: 16/7;
  object-fit: cover;
  margin-bottom: var(--spacing-section);
}

.article-body {
  max-width: 760px;
  padding: 0 0 var(--spacing-section);
}

.article-body h2 {
  font-size: 28px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-ink);
  margin: var(--spacing-xxl) 0 var(--spacing-lg);
}

.article-body h3 {
  font-size: 20px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
  margin: var(--spacing-xl) 0 var(--spacing-md);
}

.article-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-body);
  margin-bottom: var(--spacing-md);
}

.article-body ul {
  list-style: disc;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.article-body ul li {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-body);
  margin-bottom: var(--spacing-xs);
}

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

.article-body .article-image {
  margin: var(--spacing-xl) 0;
  border-radius: var(--rounded-md);
  overflow: hidden;
}

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

.article-body .article-image figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-surface-soft);
}

.related-articles { padding: var(--spacing-section) 0; border-top: 1px solid var(--color-hairline); }

.page-hero {
  padding: var(--spacing-section) 0 var(--spacing-xxl);
  background: var(--color-canvas);
}

.page-hero-title {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  max-width: 640px;
  margin-bottom: var(--spacing-lg);
}

.page-hero-sub {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-body);
  max-width: 560px;
}

.page-body {
  max-width: 760px;
  padding-bottom: var(--spacing-section);
}

.page-body h2 {
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-ink);
  margin: var(--spacing-xxl) 0 var(--spacing-md);
}

.page-body h3 {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
  margin: var(--spacing-xl) 0 var(--spacing-sm);
}

.page-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-body);
  margin-bottom: var(--spacing-md);
}

.page-body ul {
  list-style: disc;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.page-body ul li {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-body);
  margin-bottom: var(--spacing-xs);
}

.page-body a { color: var(--color-link); }

.site-footer {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding-top: var(--spacing-section);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xxl);
}

.footer-brand {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
}

.footer-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

.footer-contact {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.footer-contact a { color: var(--color-muted); }
.footer-contact a:hover { color: var(--color-ink); }

.footer-heading {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
}

.footer-col ul { display: flex; flex-direction: column; gap: var(--spacing-xs); }

.footer-col ul li a {
  font-size: 14px;
  color: var(--color-muted);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-hairline);
  padding: var(--spacing-lg) 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-muted);
}

.footer-bottom-inner a { color: var(--color-muted); }
.footer-bottom-inner a:hover { color: var(--color-ink); }

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--color-surface-dark);
  color: var(--color-on-primary);
  padding: var(--spacing-lg) var(--spacing-xxl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

.cookie-banner p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  max-width: 720px;
}

.cookie-banner p a { color: rgba(255,255,255,0.7); text-decoration: underline; }

.cookie-actions { display: flex; gap: var(--spacing-sm); flex-shrink: 0; }

.btn-legal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-link);
  color: var(--color-on-primary);
  font-size: 13.12px;
  font-weight: 600;
  font-family: inherit;
  padding: 12px 10px;
  border: none;
  border-radius: var(--rounded-xs);
  cursor: pointer;
  white-space: nowrap;
}

.btn-legal-reject {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: rgba(255,255,255,0.75);
  font-size: 13.12px;
  font-weight: 600;
  font-family: inherit;
  padding: 12px 10px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--rounded-xs);
  cursor: pointer;
  white-space: nowrap;
}

@media (max-width: 1024px) {
  .hero-band .container { grid-template-columns: 1fr; }
  .hero-image { display: none; }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--spacing-md); }
  .site-nav { display: none; flex-direction: column; align-items: flex-start; gap: var(--spacing-md); position: absolute; top: 64px; left: 0; right: 0; background: var(--color-canvas); border-bottom: 1px solid var(--color-hairline); padding: var(--spacing-lg) var(--spacing-md); }
  .site-nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero-title { font-size: 28px; }
  .article-hero-title { font-size: 28px; }
  .page-hero-title { font-size: 28px; }
  .section-title { font-size: 24px; }
  .articles-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .signature-coral-card h2, .signature-forest-card h2, .hero-card-dark h2 { font-size: 24px; }
  .cta-band-light { flex-direction: column; align-items: flex-start; }
  .cta-band-light h2 { font-size: 24px; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
}