@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Inter+Display:wght@400;475;500&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-surface-dark-elevated: #1d1f25;
  --color-hairline: #dddddd;
  --color-ink: #181d26;
  --color-body: #333840;
  --color-muted: #41454d;
  --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;
  --color-border-strong: #9297a0;
  --rounded-xs: 2px;
  --rounded-sm: 6px;
  --rounded-md: 10px;
  --rounded-lg: 12px;
  --rounded-full: 9999px;
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 96px;
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1280px;
}

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

body {
  font-family: var(--font-base);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-body);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* TOP NAV */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
  display: flex;
  align-items: center;
}
.top-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: -0.3px;
}
.nav-logo:hover { color: var(--color-ink); }
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-body);
}
.nav-links a:active { color: var(--color-ink); }
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  flex-direction: column;
  gap: 5px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-canvas);
  z-index: 99;
  overflow-y: auto;
  padding: var(--spacing-xl) var(--spacing-xxl);
}
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; }
.mobile-menu ul li { border-bottom: 1px solid var(--color-hairline); }
.mobile-menu ul li a {
  display: block;
  padding: var(--spacing-md) 0;
  font-size: 18px;
  font-weight: 400;
  color: var(--color-ink);
}

/* BUTTONS */
.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;
  line-height: 1.4;
  padding: 16px 24px;
  border-radius: var(--rounded-lg);
  border: none;
  cursor: pointer;
  min-height: 48px;
}
.btn-primary:active { 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;
  line-height: 1.4;
  padding: 16px 24px;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-hairline);
  cursor: pointer;
  min-height: 48px;
}
.btn-legal {
  display: inline-flex;
  align-items: center;
  background: var(--color-link);
  color: var(--color-on-primary);
  font-size: 13.12px;
  font-weight: 600;
  padding: 12px 10px;
  border-radius: var(--rounded-xs);
  border: none;
  cursor: pointer;
}
.btn-legal-reject {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--color-muted);
  font-size: 13.12px;
  font-weight: 600;
  padding: 12px 10px;
  border-radius: var(--rounded-xs);
  border: 1px solid var(--color-border-strong);
  cursor: pointer;
}

/* HERO BAND */
.hero-band {
  padding: var(--spacing-section) 0;
  background: var(--color-canvas);
}
.hero-band h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  max-width: 720px;
  margin-bottom: var(--spacing-lg);
}
.hero-band p {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-body);
  max-width: 560px;
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}
.hero-btns { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }

/* SIGNATURE CORAL CARD */
.signature-coral-card {
  background: var(--color-signature-coral);
  color: var(--color-on-primary);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  margin: 0;
}
.signature-coral-card h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  margin-bottom: var(--spacing-md);
  max-width: 600px;
}
.signature-coral-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--spacing-xl);
  max-width: 520px;
  line-height: 1.6;
}

/* SECTION BAND */
.section-band {
  padding: var(--spacing-section) 0;
}
.section-band-soft {
  padding: var(--spacing-section) 0;
  background: var(--color-surface-soft);
}
.section-band-dark {
  padding: var(--spacing-section) 0;
  background: var(--color-surface-dark);
  color: var(--color-on-primary);
}
.section-band-cream {
  padding: var(--spacing-section) 0;
  background: var(--color-signature-cream);
}
.section-band-strong {
  padding: var(--spacing-xxl) 0;
  background: var(--color-surface-strong);
}

.section-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--spacing-md);
}
.section-title-on-dark {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  margin-bottom: var(--spacing-md);
}
.section-subtitle {
  font-size: 14px;
  color: var(--color-body);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
}
.section-subtitle-on-dark {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: var(--spacing-xl);
}

/* ARTICLE CARDS GRID */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}
.article-card {
  background: var(--color-canvas);
  border-radius: var(--rounded-md);
  border: 1px solid var(--color-hairline);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
}
.article-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--rounded-md);
  margin-bottom: var(--spacing-md);
  background: var(--color-surface-soft);
}
.article-card-tag {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xs);
}
.article-card h3 {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}
.article-card h3 a { color: var(--color-ink); }
.article-card p {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.6;
  flex: 1;
  margin-bottom: var(--spacing-md);
}
.article-card-meta {
  font-size: 13px;
  color: var(--color-muted);
}

/* DEMO GRID (feature cards) */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  align-items: start;
}
.demo-card {
  border-radius: var(--rounded-md);
  padding: var(--spacing-md);
}
.demo-card-peach { background: var(--color-signature-peach); }
.demo-card-mint { background: var(--color-signature-mint); }
.demo-card-cream { background: var(--color-signature-cream); }
.demo-card h4 {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}
.demo-card p {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.6;
}

/* SPLIT LAYOUT */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}
.split-layout img {
  border-radius: var(--rounded-md);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* CTA BAND LIGHT */
.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);
  flex-wrap: wrap;
}
.cta-band-light h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.2;
  max-width: 480px;
}

/* CONTACT FORM */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 480px;
}
.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,
.form-group textarea {
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-base);
  font-size: 14px;
  font-weight: 400;
  padding: 12px 16px;
  height: 44px;
  border-radius: var(--rounded-sm);
  border: 1px solid var(--color-hairline);
  outline: none;
  width: 100%;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: #458fff;
}
.form-group textarea { height: 120px; resize: vertical; }

/* FOOTER */
.site-footer {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding: var(--spacing-section) 0 var(--spacing-xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}
.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}
.footer-brand p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: var(--spacing-xs); }
.footer-col ul li a {
  font-size: 14px;
  color: var(--color-muted);
}
.footer-bottom {
  border-top: 1px solid var(--color-hairline);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}
.footer-bottom p { font-size: 13px; color: var(--color-muted); }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface-dark);
  color: var(--color-on-primary);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  max-width: 640px;
  width: calc(100% - var(--spacing-xl) * 2);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.22);
}
.cookie-banner p { font-size: 14px; color: rgba(255,255,255,0.85); line-height: 1.6; }
.cookie-banner a { color: #7bb3f0; }
.cookie-btns { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }
.cookie-banner.hidden { display: none; }

/* PAGE HERO */
.page-hero {
  padding: var(--spacing-section) 0 var(--spacing-xl);
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  max-width: 720px;
}
.page-hero p {
  font-size: 14px;
  color: var(--color-body);
  max-width: 640px;
  line-height: 1.6;
}

/* ARTICLE PAGE */
.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--spacing-section) 0;
}
.article-body h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}
.article-body h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.35;
  letter-spacing: 0.12px;
  margin: var(--spacing-xl) 0 var(--spacing-md);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.5;
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}
.article-body p {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}
.article-body ul, .article-body ol {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}
.article-body li {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}
.article-body img {
  width: 100%;
  border-radius: var(--rounded-md);
  margin: var(--spacing-xl) 0;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.article-meta {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: var(--spacing-md);
}
.article-body a { color: var(--color-link); }

/* PROSE PAGES */
.prose {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--spacing-section) 0;
}
.prose h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  color: var(--color-ink);
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}
.prose h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  color: var(--color-ink);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  line-height: 1.35;
}
.prose p, .prose li {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}
.prose ul, .prose ol { padding-left: var(--spacing-lg); margin-bottom: var(--spacing-md); }
.prose a { color: var(--color-link); }
.prose-meta { font-size: 13px; color: var(--color-muted); margin-bottom: var(--spacing-xl); }

/* ABOUT */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: start;
  padding: var(--spacing-section) 0;
}
.about-split img {
  border-radius: var(--rounded-md);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split-layout { grid-template-columns: 1fr; }
  .about-split { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .container { padding: 0 var(--spacing-md); }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero-band h1 { font-size: 28px; }
  .section-title, .section-title-on-dark { font-size: 24px; }
  .signature-coral-card h2 { font-size: 24px; }
  .articles-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band-light { flex-direction: column; }
  .cta-band-light h2 { font-size: 24px; }
  .article-body h1, .page-hero h1, .prose h1 { font-size: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cookie-banner { bottom: var(--spacing-md); }
}