*, *::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;
  --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;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --max-width: 1280px;
}

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

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

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

address {
  font-style: normal;
}

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

ul {
  list-style: none;
}

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

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

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xxl);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-logo {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-left: auto;
}

.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-body);
  line-height: 1.25;
  letter-spacing: 0;
}

.nav-links 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);
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
}

.btn-primary {
  display: inline-block;
  padding: 16px 24px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--rounded-lg);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

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

.btn-secondary {
  display: inline-block;
  padding: 16px 24px;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-hairline);
  cursor: pointer;
  white-space: nowrap;
}

.btn-legal {
  display: inline-block;
  padding: 12px 10px;
  background: var(--color-link);
  color: var(--color-on-primary);
  font-size: 13.12px;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--rounded-xs);
  border: none;
  cursor: pointer;
}

.btn-legal-outline {
  background: transparent;
  color: var(--color-link);
  border: 1px solid var(--color-link);
}

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

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

.hero-headline {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-lg);
}

.hero-sub {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-body);
  margin-bottom: var(--spacing-xl);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.hero-img {
  border-radius: var(--rounded-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

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

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

.section-band--soft {
  background: var(--color-surface-soft);
}

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

.section-sub {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.25;
  max-width: 600px;
  margin-bottom: var(--spacing-xl);
}

.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);
  padding: var(--spacing-md);
  border: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
}

.article-card__thumb {
  aspect-ratio: 16/9;
  border-radius: var(--rounded-md);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

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

.article-card__tag {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  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: var(--color-ink);
}

.article-card__meta {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--color-muted);
  margin-top: auto;
  padding-top: var(--spacing-sm);
}

.article-card__excerpt {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.25;
  margin-bottom: var(--spacing-md);
}

.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 .card-headline {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.signature-coral-card .card-body {
  font-size: 14px;
  line-height: 1.25;
  max-width: 560px;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.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 .card-headline {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.signature-forest-card .card-body {
  font-size: 14px;
  line-height: 1.25;
  max-width: 560px;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

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

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

.hero-dark-card .card-body {
  font-size: 14px;
  line-height: 1.25;
  max-width: 600px;
  margin-bottom: var(--spacing-xl);
  opacity: 0.85;
}

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

.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);
  background: var(--color-signature-peach);
}

.demo-card:nth-child(2) { background: var(--color-signature-mint); }
.demo-card:nth-child(3) { background: var(--color-surface-strong); }

.demo-card__label {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}

.demo-card__text {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.25;
}

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

.text-input {
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 400;
  border-radius: var(--rounded-sm);
  padding: 12px 16px;
  height: 44px;
  border: 1px solid var(--color-hairline);
  width: 100%;
  font-family: var(--font-sans);
}

.text-input:focus {
  outline: none;
  border-color: #458fff;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 480px;
}

.contact-form label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxs);
  display: block;
}

.contact-form .form-group {
  display: flex;
  flex-direction: column;
}

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

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

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

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

.footer-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.25;
  max-width: 260px;
}

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

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

.footer-col ul a {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.25;
}

.footer-col address p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.25;
  margin-bottom: var(--spacing-xxs);
}

.footer-col address a {
  color: var(--color-muted);
}

.footer-bottom {
  border-top: 1px solid var(--color-hairline);
  padding: var(--spacing-lg) 0;
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-md);
}

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

.cookie-banner {
  display: none;
  position: fixed;
  bottom: var(--spacing-lg);
  left: var(--spacing-lg);
  right: var(--spacing-lg);
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--spacing-lg);
  z-index: 999;
  max-width: 560px;
  box-shadow: 0 4px 24px rgba(24, 29, 38, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.cookie-banner.is-hidden {
  display: none !important;
}

.cookie-banner p {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.25;
}

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

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

.article-hero__tag {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-sm);
}

.article-hero__title {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  max-width: 720px;
  margin-bottom: var(--spacing-md);
}

.article-hero__meta {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.01em;
}

.article-hero__img {
  margin-top: var(--spacing-xl);
  border-radius: var(--rounded-lg);
  overflow: hidden;
  aspect-ratio: 16/7;
}

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

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

.article-body .prose {
  max-width: 680px;
}

.prose h2 {
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-ink);
  letter-spacing: 0.01em;
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-lg);
}

.prose h3 {
  font-size: 20px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-ink);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.prose p {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.75;
  margin-bottom: var(--spacing-md);
}

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

.prose ul, .prose ol {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.75;
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
  list-style: disc;
}

.prose ol {
  list-style: decimal;
}

.prose li {
  margin-bottom: var(--spacing-xxs);
}

.prose blockquote {
  border-left: 3px solid var(--color-hairline);
  padding-left: var(--spacing-md);
  margin: var(--spacing-xl) 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.75;
}

.breadcrumb {
  font-size: 14px;
  color: var(--color-muted);
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

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

.breadcrumb__sep {
  opacity: 0.4;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

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

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

.page-sub {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.25;
  max-width: 560px;
}

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

.prose-page .prose {
  max-width: 720px;
}

.two-col-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: start;
}

@media (max-width: 1024px) {
  .hero-band .container { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col-section { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root {
    --spacing-section: 64px;
  }
  .container { padding: 0 var(--spacing-md); }
  .nav-inner { padding: 0 var(--spacing-md); }
  .footer-inner { padding: 0 var(--spacing-md); }
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-canvas);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
    align-items: flex-start;
    overflow-y: auto;
    z-index: 99;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { font-size: 18px; }
  .nav-toggle { display: flex; }
  .article-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--spacing-xs); }
  .hero-headline { font-size: 28px; }
  .article-hero__title { font-size: 28px; }
  .section-title { font-size: 24px; }
  .hero-img { display: none; }
  .cta-band-light { flex-direction: column; align-items: flex-start; }
  .cta-band-light .cta-text { font-size: 24px; }
  .signature-coral-card .card-headline,
  .signature-forest-card .card-headline,
  .hero-dark-card .card-headline { font-size: 24px; }
  .two-col-section { grid-template-columns: 1fr; }
  .cookie-banner { left: var(--spacing-md); right: var(--spacing-md); flex-direction: column; align-items: flex-start; }
  .related-grid { grid-template-columns: 1fr; }
}