@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Inter+Display:wght@400;475;500;575&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-signature-yellow: #f4d35e;
  --color-signature-mustard: #d9a441;
  --rounded-xs: 2px;
  --rounded-sm: 6px;
  --rounded-md: 10px;
  --rounded-lg: 12px;
  --rounded-pill: 9999px;
  --rounded-full: 50%;
  --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, Oxygen, Ubuntu, sans-serif;
  --font-display: 'Inter Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

/* TOP NAV */
.top-nav { position: sticky; top: 0; z-index: 100; background: var(--color-canvas); border-bottom: 1px solid var(--color-hairline); height: 64px; 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); text-decoration: none; letter-spacing: -0.3px; }
.nav-logo span { color: var(--color-signature-coral); }
.nav-menu { display: flex; align-items: center; gap: var(--spacing-xl); list-style: none; }
.nav-menu a { font-size: 14px; font-weight: 400; color: var(--color-ink); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: var(--spacing-md); }
.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(--color-ink); border-radius: 2px; transition: all .2s; }

/* BUTTONS */
.btn-primary { display: inline-flex; align-items: center; justify-content: center; background: var(--color-primary); color: var(--color-on-primary); font-family: var(--font-base); font-size: 16px; font-weight: 500; line-height: 1.4; padding: 16px 24px; border-radius: var(--rounded-lg); border: none; cursor: pointer; text-decoration: none; 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-family: var(--font-base); 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; text-decoration: none; min-height: 48px; }
.btn-secondary-dark { background: var(--color-canvas); color: var(--color-ink); }

/* 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: 700px; margin-bottom: var(--spacing-lg); }
.hero-band p { font-size: 14px; font-weight: 400; color: var(--color-body); max-width: 540px; margin-bottom: var(--spacing-xl); line-height: 1.6; }
.hero-actions { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }
.hero-meta { margin-top: var(--spacing-xxl); font-size: 13px; color: var(--color-muted); }

/* SIGNATURE CARDS */
.signature-coral { background: var(--color-signature-coral); color: var(--color-on-primary); border-radius: var(--rounded-lg); padding: var(--spacing-xxl); }
.signature-coral h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; line-height: 1.2; margin-bottom: var(--spacing-lg); }
.signature-coral p { font-size: 14px; line-height: 1.6; margin-bottom: var(--spacing-xl); opacity: .9; }

.signature-forest { background: var(--color-signature-forest); color: var(--color-on-primary); border-radius: var(--rounded-lg); padding: var(--spacing-xxl); }
.signature-forest h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; line-height: 1.2; margin-bottom: var(--spacing-lg); }
.signature-forest p { font-size: 14px; line-height: 1.6; margin-bottom: var(--spacing-xl); opacity: .9; }

.hero-card-dark { background: var(--color-surface-dark); color: var(--color-on-primary); border-radius: var(--rounded-lg); padding: var(--spacing-xxl); }
.hero-card-dark h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; line-height: 1.2; margin-bottom: var(--spacing-lg); }
.hero-card-dark p { font-size: 14px; line-height: 1.6; margin-bottom: var(--spacing-xl); opacity: .85; }

.cream-callout { background: var(--color-signature-cream); border-radius: var(--rounded-md); padding: var(--spacing-lg); }
.cream-callout h3 { font-family: var(--font-display); font-size: 24px; font-weight: 400; line-height: 1.35; color: var(--color-ink); margin-bottom: var(--spacing-md); }
.cream-callout p { font-size: 14px; color: var(--color-body); line-height: 1.6; }

/* SECTION BANDS */
.section-band { padding: var(--spacing-section) 0; background: var(--color-canvas); }
.section-band-soft { padding: var(--spacing-section) 0; background: var(--color-surface-soft); }
.section-title { font-family: var(--font-display); font-size: 24px; font-weight: 400; line-height: 1.35; letter-spacing: .12px; color: var(--color-ink); margin-bottom: var(--spacing-lg); }
.section-lead { font-size: 14px; color: var(--color-body); max-width: 640px; margin-bottom: var(--spacing-xxl); line-height: 1.6; }

/* ARTICLE CARDS */
.article-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); overflow: hidden; text-decoration: none; display: flex; flex-direction: column; }
.article-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.article-card-body { padding: var(--spacing-md); flex: 1; display: flex; flex-direction: column; }
.article-card-tag { font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--color-muted); margin-bottom: var(--spacing-xs); }
.article-card-title { font-family: var(--font-display); font-size: 18px; font-weight: 500; line-height: 1.4; color: var(--color-ink); margin-bottom: var(--spacing-xs); flex: 1; }
.article-card-meta { font-size: 13px; color: var(--color-muted); margin-top: var(--spacing-sm); }

/* DEMO GRID */
.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); }
.demo-card-peach { background: var(--color-signature-peach); }
.demo-card-mint { background: var(--color-signature-mint); }
.demo-card-yellow { background: var(--color-signature-yellow); }
.demo-card-mustard { background: var(--color-signature-mustard); }
.demo-card h3 { font-size: 16px; font-weight: 500; line-height: 1.4; color: var(--color-ink); margin-bottom: var(--spacing-xs); }
.demo-card p { font-size: 14px; color: var(--color-body); line-height: 1.5; }
.demo-card img { border-radius: var(--rounded-md); margin-bottom: var(--spacing-md); width: 100%; object-fit: cover; }

/* CTA BAND */
.cta-band { background: var(--color-surface-strong); border-radius: var(--rounded-lg); padding: var(--spacing-xxl); margin: var(--spacing-section) 0; text-align: center; }
.cta-band h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; line-height: 1.2; color: var(--color-ink); margin-bottom: var(--spacing-lg); }
.cta-band p { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-xl); max-width: 540px; margin-left: auto; margin-right: auto; line-height: 1.6; }

/* CONTACT FORM */
.contact-form { max-width: 560px; }
.form-row { margin-bottom: var(--spacing-md); }
.form-row label { display: block; font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-xs); }
.form-row input, .form-row textarea { width: 100%; background: var(--color-canvas); color: var(--color-ink); font-family: var(--font-base); font-size: 14px; line-height: 1.25; border-radius: var(--rounded-sm); border: 1px solid var(--color-hairline); padding: 12px 16px; height: 44px; outline: none; }
.form-row input:focus, .form-row textarea:focus { border-color: #458fff; }
.form-row textarea { height: 120px; resize: vertical; }

/* ARTICLE PAGE */
.article-header { padding: var(--spacing-section) 0 var(--spacing-xxl); background: var(--color-canvas); }
.article-header h1 { font-family: var(--font-display); font-size: 40px; font-weight: 400; line-height: 1.2; color: var(--color-ink); max-width: 760px; margin-bottom: var(--spacing-lg); }
.article-header .article-meta { font-size: 13px; color: var(--color-muted); display: flex; gap: var(--spacing-md); }
.article-body { max-width: 760px; }
.article-body h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; line-height: 1.2; color: var(--color-ink); margin: var(--spacing-xxl) 0 var(--spacing-lg); }
.article-body h3 { font-family: var(--font-display); font-size: 24px; font-weight: 400; line-height: 1.35; color: var(--color-ink); margin: var(--spacing-xl) 0 var(--spacing-md); }
.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-xl); 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 { border-radius: var(--rounded-md); margin: var(--spacing-xl) 0; width: 100%; }
.article-body a { color: var(--color-link); }
.article-body a:active { color: var(--color-link-active); }
.article-sources { margin-top: var(--spacing-section); padding-top: var(--spacing-xl); border-top: 1px solid var(--color-hairline); }
.article-sources h3 { font-size: 16px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-md); }
.article-sources ul { list-style: none; }
.article-sources li { font-size: 13px; color: var(--color-muted); margin-bottom: var(--spacing-xs); }
.article-sources a { color: var(--color-link); font-size: 13px; }

/* BREADCRUMB */
.breadcrumb { font-size: 13px; color: var(--color-muted); padding: var(--spacing-md) 0; display: flex; gap: var(--spacing-xs); align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--color-muted); }
.breadcrumb span { color: var(--color-muted); }

/* RELATED */
.related-articles { padding: var(--spacing-section) 0; border-top: 1px solid var(--color-hairline); }
.related-articles h2 { font-family: var(--font-display); font-size: 24px; font-weight: 400; color: var(--color-ink); margin-bottom: var(--spacing-xl); }

/* PAGE CONTENT */
.page-content { padding: var(--spacing-section) 0; max-width: 760px; }
.page-content h1 { font-family: var(--font-display); font-size: 40px; font-weight: 400; line-height: 1.2; color: var(--color-ink); margin-bottom: var(--spacing-xxl); }
.page-content h2 { font-family: var(--font-display); font-size: 24px; font-weight: 400; line-height: 1.35; color: var(--color-ink); margin: var(--spacing-xxl) 0 var(--spacing-md); }
.page-content p { font-size: 14px; color: var(--color-body); line-height: 1.7; margin-bottom: var(--spacing-md); }
.page-content ul { padding-left: var(--spacing-xl); margin-bottom: var(--spacing-md); }
.page-content li { font-size: 14px; color: var(--color-body); line-height: 1.7; margin-bottom: var(--spacing-xs); }
.page-updated { font-size: 13px; color: var(--color-muted); margin-top: var(--spacing-xxl); }

/* 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-section); }
.footer-brand p { font-size: 14px; color: var(--color-muted); line-height: 1.6; margin-top: var(--spacing-md); max-width: 280px; }
.footer-col h4 { font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-md); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--spacing-xs); }
.footer-col a { font-size: 14px; color: var(--color-muted); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--color-hairline); padding-top: var(--spacing-xl); 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); }
.footer-legal { display: flex; gap: var(--spacing-lg); }
.footer-legal a { font-size: 13px; color: var(--color-muted); }
.footer-contact { font-size: 13px; color: var(--color-muted); line-height: 1.6; }
.footer-contact a { color: var(--color-muted); }

/* COOKIE BANNER */
#cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; 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-lg); z-index: 9999; flex-wrap: wrap; }
#cookie-banner p { font-size: 14px; line-height: 1.5; opacity: .9; max-width: 700px; }
#cookie-banner p a { color: var(--color-signature-mint); }
.cookie-actions { display: flex; gap: var(--spacing-sm); flex-shrink: 0; }
.btn-cookie-accept { 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; white-space: nowrap; }
.btn-cookie-reject { background: transparent; color: var(--color-on-primary); font-size: 13.12px; font-weight: 600; padding: 12px 10px; border-radius: var(--rounded-xs); border: 1px solid rgba(255,255,255,.3); cursor: pointer; white-space: nowrap; }

/* DISCLAIMER BANNER */
.disclaimer-bar { background: var(--color-surface-soft); border-bottom: 1px solid var(--color-hairline); padding: var(--spacing-xs) 0; }
.disclaimer-bar p { font-size: 12px; color: var(--color-muted); text-align: center; }

/* MOBILE NAV OVERLAY */
.nav-overlay { display: none; position: fixed; inset: 0; background: var(--color-canvas); z-index: 200; flex-direction: column; padding: var(--spacing-xl); overflow-y: auto; }
.nav-overlay.open { display: flex; }
.nav-overlay-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--spacing-xxl); }
.nav-overlay ul { list-style: none; }
.nav-overlay ul li { border-bottom: 1px solid var(--color-hairline); }
.nav-overlay ul li a { display: block; font-size: 20px; font-weight: 400; color: var(--color-ink); padding: var(--spacing-lg) 0; text-decoration: none; }
.nav-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--color-ink); }

/* UTILITIES */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); align-items: center; }
.two-col-reverse { direction: rtl; }
.two-col-reverse > * { direction: ltr; }
.signature-card-pair { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); }
.text-muted { color: var(--color-muted); }
.mt-section { margin-top: var(--spacing-section); }
.mb-section { margin-bottom: var(--spacing-section); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .signature-card-pair { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--spacing-md); }
  .hero-band { padding: var(--spacing-xxl) 0; }
  .hero-band h1 { font-size: 28px; }
  .section-band, .section-band-soft { padding: var(--spacing-xxl) 0; }
  .nav-menu, .nav-actions { display: none; }
  .nav-hamburger { display: flex; }
  .article-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-legal { flex-wrap: wrap; }
  .article-header h1 { font-size: 28px; }
  .signature-coral h2, .signature-forest h2, .hero-card-dark h2 { font-size: 24px; }
  .cta-band h2 { font-size: 24px; }
  #cookie-banner { flex-direction: column; padding: var(--spacing-md); }
  .cookie-actions { width: 100%; }
  .article-header .article-meta { flex-direction: column; gap: var(--spacing-xs); }
  .page-content h1 { font-size: 28px; }
}