@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 {
  --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;
  --color-signature-yellow: #f4d35e;
  --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;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; font-size: 14px; font-weight: 400; line-height: 1.6; color: var(--color-body); background: var(--color-canvas); }

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

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

@media (max-width: 767px) { .container { padding: 0 var(--spacing-md); } }

h1, h2, h3 { color: var(--color-ink); font-weight: 400; line-height: 1.2; }
h1 { font-size: 40px; }
h2 { font-size: 32px; }
h3 { font-size: 24px; letter-spacing: 0.12px; }

.site-header { position: sticky; top: 0; z-index: 100; background: var(--color-canvas); height: 64px; border-bottom: 1px solid var(--color-hairline); }
.nav-inner { display: flex; align-items: center; height: 64px; gap: var(--spacing-xl); }
.logo { font-size: 16px; font-weight: 600; color: var(--color-ink); white-space: nowrap; }
.logo:hover { text-decoration: none; }
.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); }
.nav-links a:hover { color: var(--color-ink); text-decoration: none; }
.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: 2px; transition: 0.2s; }

@media (max-width: 767px) {
  .nav-toggle { display: flex; }
  .nav-links { display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0; background: var(--color-canvas); flex-direction: column; align-items: flex-start; padding: var(--spacing-xl); gap: var(--spacing-lg); z-index: 99; }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 18px; }
}

.btn-primary { display: inline-block; 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; text-decoration: none; transition: background 0.15s; }
.btn-primary:hover { background: var(--color-primary-active); color: var(--color-on-primary); text-decoration: none; }
.btn-secondary { display: inline-block; 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; text-decoration: none; transition: border-color 0.15s; }
.btn-secondary:hover { border-color: var(--color-ink); text-decoration: none; }

.hero-band { padding: var(--spacing-section) 0; }
.hero-inner { max-width: 720px; }
.hero-inner h1 { margin-bottom: var(--spacing-lg); }
.hero-inner p { font-size: 18px; line-height: 1.6; color: var(--color-body); margin-bottom: var(--spacing-xl); max-width: 580px; }
.hero-buttons { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }

.section { padding: var(--spacing-section) 0; }
.section-title { font-size: 32px; font-weight: 400; margin-bottom: var(--spacing-xl); color: var(--color-ink); }
.section-subtitle { font-size: 16px; color: var(--color-muted); margin-top: -16px; margin-bottom: var(--spacing-xl); }

.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
@media (max-width: 1023px) { .articles-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px) { .articles-grid { grid-template-columns: 1fr; } }

.article-card { background: var(--color-canvas); border-radius: var(--rounded-md); overflow: hidden; border: 1px solid var(--color-hairline); transition: box-shadow 0.2s; }
.article-card:hover { box-shadow: 0 4px 16px rgba(24,29,38,0.08); }
.article-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.article-card-body { padding: var(--spacing-md); }
.article-tag { font-size: 12px; font-weight: 500; color: var(--color-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--spacing-xs); }
.article-card-title { font-size: 18px; font-weight: 500; color: var(--color-ink); line-height: 1.4; margin-bottom: var(--spacing-xs); }
.article-card-title a { color: var(--color-ink); }
.article-card-title a:hover { color: var(--color-link); text-decoration: none; }
.article-card-meta { font-size: 13px; color: var(--color-muted); }

.signature-coral { background: var(--color-signature-coral); color: var(--color-on-primary); border-radius: var(--rounded-lg); padding: var(--spacing-xxl); }
.signature-coral h2 { color: var(--color-on-primary); font-size: 32px; margin-bottom: var(--spacing-md); }
.signature-coral p { color: rgba(255,255,255,0.85); font-size: 16px; line-height: 1.6; margin-bottom: var(--spacing-xl); max-width: 560px; }
.signature-coral-wrap { padding: var(--spacing-section) 0; }

.signature-dark { background: var(--color-surface-dark); color: var(--color-on-primary); border-radius: var(--rounded-lg); padding: var(--spacing-xxl); }
.signature-dark h2 { color: var(--color-on-primary); font-size: 32px; margin-bottom: var(--spacing-md); }
.signature-dark p { color: rgba(255,255,255,0.8); font-size: 16px; line-height: 1.6; margin-bottom: var(--spacing-xl); max-width: 560px; }
.signature-dark-wrap { padding: 0 0 var(--spacing-section); }

.cream-callout { background: var(--color-signature-cream); border-radius: var(--rounded-md); padding: var(--spacing-xxl); }
.cream-callout h2 { font-size: 28px; margin-bottom: var(--spacing-md); }
.cream-callout p { font-size: 15px; line-height: 1.7; color: var(--color-body); }
.cream-callout-wrap { padding: 0 0 var(--spacing-section); }

.demo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
@media (max-width: 1023px) { .demo-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px) { .demo-grid { grid-template-columns: 1fr; } }
.demo-card { border-radius: var(--rounded-md); padding: var(--spacing-md); overflow: hidden; }
.demo-card img { width: 100%; border-radius: var(--rounded-sm); object-fit: cover; display: block; margin-bottom: var(--spacing-sm); }
.demo-card-title { font-size: 16px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-xs); }
.demo-card-desc { font-size: 13px; color: var(--color-muted); line-height: 1.5; }
.demo-card.peach { background: var(--color-signature-peach); }
.demo-card.mint { background: var(--color-signature-mint); }
.demo-card.yellow { background: var(--color-signature-yellow); }

.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-size: 28px; font-weight: 400; color: var(--color-ink); max-width: 480px; }
.cta-band-wrap { padding: 0 0 var(--spacing-section); }

.contact-form-wrap { background: var(--color-surface-soft); border-radius: var(--rounded-md); padding: var(--spacing-xxl); max-width: 560px; }
.form-group { margin-bottom: var(--spacing-md); }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-xs); }
.form-group input, .form-group textarea { width: 100%; height: 44px; padding: 12px 16px; border: 1px solid var(--color-hairline); border-radius: var(--rounded-sm); font-family: inherit; font-size: 14px; color: var(--color-ink); background: var(--color-canvas); outline: none; transition: border-color 0.15s; }
.form-group input:focus, .form-group textarea:focus { border-color: #458fff; }
.form-group textarea { height: auto; min-height: 100px; resize: vertical; }
.form-success { display: none; background: #e6f4ea; border: 1px solid #39bf45; border-radius: var(--rounded-sm); padding: var(--spacing-md); color: #006400; font-size: 14px; margin-top: var(--spacing-md); }

.article-hero { padding: var(--spacing-section) 0 var(--spacing-xl); }
.article-hero h1 { font-size: 40px; margin-bottom: var(--spacing-md); max-width: 800px; }
.article-hero .article-meta { font-size: 14px; color: var(--color-muted); margin-bottom: var(--spacing-xl); }
.article-hero img { width: 100%; max-height: 480px; object-fit: cover; border-radius: var(--rounded-md); }

.article-body { padding: var(--spacing-xl) 0 var(--spacing-section); }
.article-content { max-width: 720px; }
.article-content p { font-size: 15px; line-height: 1.75; color: var(--color-body); margin-bottom: var(--spacing-lg); }
.article-content h2 { font-size: 28px; font-weight: 400; color: var(--color-ink); margin: var(--spacing-xxl) 0 var(--spacing-md); }
.article-content h3 { font-size: 20px; font-weight: 500; color: var(--color-ink); margin: var(--spacing-xl) 0 var(--spacing-sm); }
.article-content ul, .article-content ol { padding-left: 24px; margin-bottom: var(--spacing-lg); }
.article-content li { font-size: 15px; line-height: 1.75; color: var(--color-body); margin-bottom: 6px; }
.article-content a { color: var(--color-link); }
.article-content img { width: 100%; border-radius: var(--rounded-md); margin: var(--spacing-lg) 0; }
.article-content blockquote { border-left: 3px solid var(--color-signature-coral); padding: var(--spacing-md) var(--spacing-lg); background: var(--color-surface-soft); border-radius: 0 var(--rounded-sm) var(--rounded-sm) 0; margin: var(--spacing-lg) 0; font-style: italic; color: var(--color-body); }

.article-sidebar { max-width: 320px; }
.sidebar-card { background: var(--color-surface-soft); border-radius: var(--rounded-md); padding: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.sidebar-card h3 { font-size: 16px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-sm); }
.sidebar-card ul { list-style: none; padding: 0; }
.sidebar-card li { padding: 6px 0; border-bottom: 1px solid var(--color-hairline); font-size: 14px; }
.sidebar-card li:last-child { border-bottom: none; }

.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: var(--spacing-xl); }
@media (max-width: 1023px) { .article-layout { grid-template-columns: 1fr; } .article-sidebar { max-width: 100%; } }

.breadcrumb { font-size: 13px; color: var(--color-muted); margin-bottom: var(--spacing-lg); }
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-ink); }
.breadcrumb span { margin: 0 6px; }

.page-hero { padding: var(--spacing-section) 0 var(--spacing-xl); }
.page-hero h1 { margin-bottom: var(--spacing-md); }
.page-hero p { font-size: 16px; color: var(--color-muted); max-width: 600px; }

.page-body { padding: 0 0 var(--spacing-section); }
.page-content { max-width: 720px; }
.page-content h2 { font-size: 24px; font-weight: 400; margin: var(--spacing-xxl) 0 var(--spacing-md); }
.page-content p { font-size: 15px; line-height: 1.75; margin-bottom: var(--spacing-md); color: var(--color-body); }
.page-content ul { padding-left: 24px; margin-bottom: var(--spacing-md); }
.page-content li { font-size: 15px; line-height: 1.75; color: var(--color-body); }

.site-footer { border-top: 1px solid var(--color-hairline); padding: var(--spacing-section) 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--spacing-xxl); margin-bottom: var(--spacing-xxl); }
@media (max-width: 767px) { .footer-inner { grid-template-columns: 1fr; gap: var(--spacing-xl); } }
.footer-brand { font-size: 16px; font-weight: 600; color: var(--color-ink); margin-bottom: var(--spacing-sm); }
.footer-desc { font-size: 14px; color: var(--color-muted); line-height: 1.6; margin-bottom: var(--spacing-md); }
.footer-contact { font-size: 14px; color: var(--color-muted); line-height: 1.8; }
.footer-contact a { color: var(--color-muted); }
.footer-heading { font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-sm); }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 14px; color: var(--color-muted); }
.footer-col a:hover { color: var(--color-ink); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--color-hairline); padding: var(--spacing-lg) 0; }
.footer-bottom p { font-size: 13px; color: var(--color-muted); line-height: 1.6; }
.footer-bottom a { color: var(--color-muted); }
.footer-disclaimer { margin-top: 6px; font-size: 12px; }

.cookie-banner { position: fixed; bottom: var(--spacing-lg); left: var(--spacing-lg); right: var(--spacing-lg); background: var(--color-ink); color: var(--color-on-primary); border-radius: var(--rounded-lg); padding: var(--spacing-lg) var(--spacing-xl); display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-lg); flex-wrap: wrap; z-index: 1000; box-shadow: 0 8px 32px rgba(24,29,38,0.24); }
.cookie-banner p { font-size: 14px; color: rgba(255,255,255,0.85); line-height: 1.5; max-width: 640px; }
.cookie-banner p a { color: rgba(255,255,255,0.7); text-decoration: underline; }
.cookie-buttons { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }
.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: rgba(255,255,255,0.7); font-size: 13.12px; font-weight: 600; padding: 12px 10px; border-radius: var(--rounded-xs); border: 1px solid rgba(255,255,255,0.3); cursor: pointer; white-space: nowrap; }