@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Inter+Display:wght@400;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-ink: #181d26;
  --color-body: #333840;
  --color-muted: #41454d;
  --color-hairline: #dddddd;
  --color-on-primary: #ffffff;
  --color-link: #1b61c9;
  --color-signature-coral: #aa2d00;
  --color-signature-forest: #0a2e0e;
  --color-signature-cream: #f5e9d4;
  --color-signature-peach: #fcab79;
  --color-signature-mint: #a8d8c4;
  --radius-xs: 2px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --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, Helvetica, Arial, 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;
}

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

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

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

.top-nav .container {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--spacing-xl);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
  flex: 1;
}

.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-ink);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--color-link);
}

.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;
}

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-canvas);
  z-index: 99;
  padding: var(--spacing-xl) var(--spacing-xxl);
}

.nav-mobile-menu.open {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.nav-mobile-menu a {
  font-size: 18px;
  font-weight: 400;
  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: 720px;
  margin-bottom: var(--spacing-lg);
}

.hero-band p {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-body);
  max-width: 560px;
  margin-bottom: var(--spacing-xl);
}

/* SECTION BASE */
.section {
  padding: var(--spacing-section) 0;
}

.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-lg);
}

.section-subtitle {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-body);
  max-width: 560px;
  margin-bottom: var(--spacing-xl);
}

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

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

.article-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 0;
}

.article-card-body {
  padding: var(--spacing-md);
}

.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);
  text-decoration: none;
}

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

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

.article-card-excerpt {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-body);
  margin-top: var(--spacing-xs);
}

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

.signature-coral-card h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  max-width: 600px;
  margin-bottom: var(--spacing-md);
}

.signature-coral-card p {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
  max-width: 520px;
  margin-bottom: var(--spacing-xl);
}

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

.signature-forest-card h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  max-width: 600px;
  margin-bottom: var(--spacing-md);
}

.signature-forest-card p {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(255,255,255,0.8);
  max-width: 520px;
}

/* CREAM CALLOUT CARD */
.cream-callout-card {
  background: var(--color-signature-cream);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
}

.cream-callout-card h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
}

.cream-callout-card p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-body);
}

/* DARK CTA BAND */
.dark-cta-band {
  background: var(--color-surface-dark);
  padding: var(--spacing-section) 0;
}

.dark-cta-band h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-on-primary);
  max-width: 640px;
  margin-bottom: var(--spacing-lg);
}

.dark-cta-band p {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin-bottom: var(--spacing-xl);
}

/* LIGHT CTA BAND */
.light-cta-band {
  background: var(--color-surface-strong);
  padding: var(--spacing-section) 0;
}

.light-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);
}

/* 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(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.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(--radius-lg);
  border: 1px solid var(--color-hairline);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

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

/* TEXT INPUT */
.text-input {
  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(--radius-sm);
  border: 1px solid var(--color-hairline);
  width: 100%;
  outline: none;
}

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

textarea.text-input {
  height: auto;
  min-height: 100px;
  resize: vertical;
}

/* CONTACT FORM */
.contact-form {
  max-width: 480px;
}

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

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 6px;
}

/* ARTICLE PAGE */
.article-hero {
  padding: var(--spacing-section) 0 var(--spacing-xl);
}

.article-hero 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-md);
}

.article-meta {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
}

.article-content {
  max-width: 720px;
}

.article-content h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-ink);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

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

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

.article-content ul,
.article-content ol {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.article-content li {
  margin-bottom: 6px;
}

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

.article-featured-img {
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-xl);
}

.article-inline-img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: var(--spacing-xl) 0;
}

/* BREADCRUMBS */
.breadcrumbs {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

.breadcrumbs a {
  color: var(--color-muted);
  text-decoration: none;
}

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

.breadcrumbs span {
  margin: 0 6px;
}

/* TWO-COLUMN LAYOUT */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

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

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

.demo-card {
  border-radius: var(--radius-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 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;
  line-height: 1.5;
  color: var(--color-body);
}

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

.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-lg);
}

.page-content h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-ink);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

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

.page-content ul {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-body);
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.page-content li {
  margin-bottom: 6px;
}

.update-date {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
}

/* FOOTER */
.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-xxl);
}

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

.footer-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
  max-width: 280px;
}

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

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-link);
}

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

.footer-legal {
  font-size: 13px;
  color: var(--color-muted);
}

.footer-legal a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--color-link);
}

.footer-legal-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* 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);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.cookie-banner p {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
  max-width: 680px;
}

.cookie-banner a {
  color: rgba(255,255,255,0.85);
  text-decoration: underline;
}

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

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

.btn-legal-reject {
  background: transparent;
  color: rgba(255,255,255,0.75);
  font-family: var(--font-base);
  font-size: 13.12px;
  font-weight: 600;
  padding: 12px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  white-space: nowrap;
}

.disclaimer-bar {
  background: var(--color-surface-soft);
  border-bottom: 1px solid var(--color-hairline);
  padding: 8px var(--spacing-xxl);
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

/* 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;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
  .hero-band h1 {
    font-size: 28px;
  }
  .section-title {
    font-size: 24px;
  }
  .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;
  }
  .nav-links {
    display: none;
  }
  .nav-hamburger {
    display: flex;
    margin-left: auto;
  }
  .article-hero h1 {
    font-size: 28px;
  }
  .signature-coral-card h2,
  .signature-forest-card h2,
  .dark-cta-band h2,
  .light-cta-band h2 {
    font-size: 24px;
  }
  .signature-coral-card,
  .signature-forest-card {
    padding: var(--spacing-xl);
  }
  .cookie-banner {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  .page-content h1 {
    font-size: 28px;
  }
}