@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 {
  --primary: #181d26;
  --primary-active: #0d1218;
  --canvas: #ffffff;
  --surface-soft: #f8fafc;
  --surface-strong: #e0e2e6;
  --surface-dark: #181d26;
  --hairline: #dddddd;
  --ink: #181d26;
  --body: #333840;
  --muted: #41454d;
  --on-primary: #ffffff;
  --link: #1b61c9;
  --signature-coral: #aa2d00;
  --signature-forest: #0a2e0e;
  --signature-cream: #f5e9d4;
  --signature-peach: #fcab79;
  --signature-mint: #a8d8c4;
  --rounded-xs: 2px;
  --rounded-sm: 6px;
  --rounded-md: 10px;
  --rounded-lg: 12px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 96px;
  --max-width: 1280px;
}

html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  color: var(--body);
  background: var(--canvas);
  line-height: 1.5;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  text-decoration: underline;
}

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

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

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

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

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.nav-logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  color: var(--body);
  font-size: 14px;
  font-weight: 400;
}

.nav-links a:hover {
  color: var(--ink);
  text-decoration: none;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

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

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

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

.hero-text h1 {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: var(--spacing-lg);
}

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

.hero-image img {
  border-radius: var(--rounded-md);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* BUTTONS */
.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 16px;
  font-weight: 500;
  padding: 16px 24px;
  border-radius: var(--rounded-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: var(--primary-active);
  text-decoration: none;
  color: var(--on-primary);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: var(--canvas);
  color: var(--ink);
  font-size: 16px;
  font-weight: 500;
  padding: 16px 24px;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--hairline);
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}

.btn-secondary:hover {
  text-decoration: none;
  border-color: #aaa;
}

.btn-legal {
  background: var(--link);
  color: var(--on-primary);
  font-size: 13.12px;
  font-weight: 600;
  padding: 12px 10px;
  border-radius: var(--rounded-xs);
  border: none;
  cursor: pointer;
}

/* SECTION BANDS */
.section-white {
  padding: var(--spacing-section) 0;
  background: var(--canvas);
}

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

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

.section-coral {
  padding: var(--spacing-section) 0;
  background: var(--signature-coral);
  color: var(--on-primary);
}

.section-forest {
  padding: var(--spacing-section) 0;
  background: var(--signature-forest);
  color: var(--on-primary);
}

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

.section-dark {
  padding: var(--spacing-section) 0;
  background: var(--surface-dark);
  color: var(--on-primary);
}

.section-header {
  margin-bottom: var(--spacing-xxl);
}

.section-header h2 {
  font-size: 32px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.section-coral .section-header h2,
.section-forest .section-header h2,
.section-dark .section-header h2 {
  color: var(--on-primary);
}

.section-header p {
  font-size: 14px;
  color: var(--body);
  max-width: 640px;
}

.section-coral .section-header p,
.section-forest .section-header p,
.section-dark .section-header p {
  color: rgba(255,255,255,0.8);
}

/* ARTICLE CARDS GRID */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.article-card {
  background: var(--canvas);
  border-radius: var(--rounded-md);
  border: 1px solid var(--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: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--spacing-xs);
}

.article-card h3 {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: var(--spacing-xs);
}

.article-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
  flex: 1;
}

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

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

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

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

.btn-secondary-on-dark {
  display: inline-flex;
  align-items: center;
  background: var(--canvas);
  color: var(--ink);
  font-size: 16px;
  font-weight: 500;
  padding: 16px 24px;
  border-radius: var(--rounded-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}

.btn-secondary-on-dark:hover {
  text-decoration: none;
}

/* DEMO GRID CARDS */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.demo-card {
  border-radius: var(--rounded-md);
  padding: var(--spacing-md);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
}

.demo-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--rounded-md);
}

.demo-card-overlay {
  position: relative;
  z-index: 1;
  background: rgba(24,29,38,0.55);
  border-radius: var(--rounded-sm);
  padding: var(--spacing-sm) var(--spacing-md);
}

.demo-card-overlay h4 {
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  line-height: 1.4;
}

.demo-card-overlay p {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
}

/* ARTICLE PAGE */
.article-hero {
  padding: var(--spacing-section) 0 var(--spacing-xl);
  background: var(--surface-dark);
  color: var(--on-primary);
}

.article-hero h1 {
  font-size: 48px;
  font-weight: 500;
  line-height: 1.1;
  max-width: 800px;
  margin-bottom: var(--spacing-lg);
}

.article-hero .meta {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
}

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

.article-content .container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xxl);
  align-items: start;
}

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

.article-body h3 {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.article-body p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.article-body ul {
  margin: var(--spacing-md) 0 var(--spacing-md) var(--spacing-xl);
}

.article-body li {
  font-size: 14px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}

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

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

.article-sidebar {
  position: sticky;
  top: 80px;
}

.sidebar-card {
  background: var(--surface-soft);
  border-radius: var(--rounded-md);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--hairline);
}

.sidebar-card h4 {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: var(--spacing-md);
}

.sidebar-card ul {
  list-style: none;
}

.sidebar-card li {
  border-bottom: 1px solid var(--hairline);
  padding: var(--spacing-xs) 0;
  font-size: 14px;
}

.sidebar-card li:last-child {
  border-bottom: none;
}

.sidebar-card li a {
  color: var(--body);
}

/* CTA BAND */
.cta-band {
  background: var(--surface-strong);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  text-align: center;
}

.cta-band h2 {
  font-size: 32px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: var(--spacing-md);
}

.cta-band p {
  font-size: 14px;
  color: var(--body);
  margin-bottom: var(--spacing-xl);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* CONTACT FORM */
.contact-form {
  background: var(--surface-soft);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xxl);
  border: 1px solid var(--hairline);
}

.contact-form h3 {
  font-size: 24px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.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);
  border-radius: var(--rounded-sm);
  padding: 12px 16px;
  height: 44px;
  font-size: 14px;
  color: var(--ink);
  font-family: inherit;
}

.form-group textarea {
  height: auto;
  min-height: 100px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #458fff;
  box-shadow: 0 0 0 2px rgba(69,143,255,0.18);
}

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: var(--spacing-section) 0 var(--spacing-xl);
  margin-top: auto;
}

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

.footer-brand p {
  font-size: 14px;
  color: var(--muted);
  margin-top: var(--spacing-md);
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: var(--spacing-md);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

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

.footer-col a:hover {
  color: var(--ink);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
}

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

#cookie-banner p {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  max-width: 720px;
  line-height: 1.5;
}

#cookie-banner p a {
  color: rgba(255,255,255,0.9);
  text-decoration: underline;
}

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

/* PAGE UTILITY */
.page-hero {
  background: var(--surface-soft);
  padding: var(--spacing-xxl) 0;
  border-bottom: 1px solid var(--hairline);
}

.page-hero h1 {
  font-size: 40px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: var(--spacing-md);
}

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

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

.page-content h2 {
  font-size: 24px;
  font-weight: 400;
  color: var(--ink);
  margin: var(--spacing-xl) 0 var(--spacing-md);
}

.page-content h3 {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.page-content p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  max-width: 760px;
}

.page-content ul, .page-content ol {
  margin: var(--spacing-md) 0 var(--spacing-md) var(--spacing-xl);
  max-width: 760px;
}

.page-content li {
  font-size: 14px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}

/* BREADCRUMB */
.breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: var(--spacing-md);
  display: flex;
  gap: 6px;
  align-items: center;
}

.breadcrumb a {
  color: var(--muted);
}

.breadcrumb span {
  color: var(--muted);
}

/* DISCLAIMER */
.disclaimer {
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-md);
  padding: var(--spacing-lg);
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-top: var(--spacing-xl);
}

/* 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;
    gap: var(--spacing-xl);
  }
  .article-content .container {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-section: 64px;
  }

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

  .nav-links {
    display: none;
    position: fixed;
    inset: 64px 0 0 0;
    background: var(--canvas);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-xl) var(--spacing-lg);
    gap: var(--spacing-md);
    z-index: 99;
    border-top: 1px solid var(--hairline);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-band .container {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 28px;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  #cookie-banner {
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-md);
  }

  .article-hero h1 {
    font-size: 30px;
  }

  .coral-card h2 {
    font-size: 24px;
  }

  .section-header h2 {
    font-size: 24px;
  }
}