:root {
  --primary: #00BFA5;
  --accent: #FF6D00;
  --bg-dark: #1A237E;
  --bg-light: #F5F5F5;
  --text-primary: #212121;
  --text-on-dark: #FFFFFF;
  --border: #B2DFDB;
  --data-highlight: #00E5FF;
  --font-heading: 'Inter', 'Noto Sans SC', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', sans-serif;
  --font-data: monospace;
  --container-max: 1280px;
  --space-unit: 1rem;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --radius-sm: 6px;
  --radius-md: 12px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--text-primary); background: var(--bg-light); line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; letter-spacing: 0.05em; line-height: 1.2; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
address { font-style: normal; }

.skip-link { position: absolute; top: -100%; left: 1rem; padding: 0.5rem 1rem; background: var(--accent); color: var(--text-on-dark); z-index: 1000; border-radius: var(--radius-sm); font-weight: 600; }
.skip-link:focus { top: 0.5rem; }

.site-header { position: sticky; top: 0; z-index: 100; background: var(--bg-dark); border-bottom: 1px solid var(--border); }
.header-inner { max-width: var(--container-max); margin: 0 auto; padding: 0.75rem 2rem; display: flex; align-items: center; gap: 2rem; }
.site-logo { display: flex; align-items: center; gap: 0.5rem; color: var(--primary); font-family: var(--font-heading); font-weight: 700; letter-spacing: 0.1em; font-size: 1.25rem; }
.logo-icon { font-size: 1.5rem; }
.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 4px; }
.toggle-bar { display: block; width: 24px; height: 2px; background: var(--text-on-dark); transition: transform 0.3s, opacity 0.3s; }
.nav-capsule {  }
.nav-list { display: flex; gap: 0.25rem; background: rgba(255,255,255,0.05); padding: 0.25rem; border-radius: 40px; backdrop-filter: blur(4px); }
.nav-list a { display: block; padding: 0.5rem 1.25rem; border-radius: 40px; font-size: 0.9rem; font-weight: 500; color: var(--text-on-dark); transition: background 0.2s, color 0.2s; white-space: nowrap; }
.nav-list a:hover, .nav-list a:focus-visible { background: var(--primary); color: var(--bg-dark); }
.nav-list a[aria-current="page"] { background: var(--primary); color: var(--bg-dark); font-weight: 700; }
.refresh-node { margin-left: auto; flex-shrink: 0; }
.btn { display: inline-block; padding: 0.6rem 1.5rem; border-radius: 40px; font-family: var(--font-heading); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.05em; border: none; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: var(--bg-dark); }
.btn-accent { background: var(--accent); color: var(--text-on-dark); box-shadow: 0 0 12px rgba(255,109,0,0.3); }
.btn-accent:hover { transform: scale(1.05); box-shadow: 0 0 20px rgba(255,109,0,0.5); }

.site-footer { background: var(--bg-dark); color: var(--text-on-dark); padding: 3rem 0 1.5rem; margin-top: 4rem; border-top: 1px solid var(--border); }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 2rem; }
.footer-brand .logo-text { font-size: 1.5rem; font-weight: 700; color: var(--primary); letter-spacing: 0.1em; }
.trust-statement { margin-top: 0.75rem; font-size: 0.9rem; opacity: 0.8; line-height: 1.6; max-width: 30em; }
.footer-heading { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1rem; color: var(--border); }
.footer-links, .footer-contact { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a, .footer-contact a { color: var(--text-on-dark); opacity: 0.75; transition: opacity 0.2s, color 0.2s; font-size: 0.9rem; }
.footer-links a:hover, .footer-contact a:hover { opacity: 1; color: var(--primary); }
.footer-contact address { opacity: 0.6; font-size: 0.85rem; margin-top: 0.5rem; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.8rem; opacity: 0.6; }
.icp-badge { font-family: var(--font-data); }

.data-card { background: var(--text-on-dark); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.5rem; box-shadow: var(--shadow-sm); transition: transform 0.2s, box-shadow 0.2s; }
.data-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.card-title { font-size: 0.85rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: #666; margin-bottom: 0.5rem; }
.data-number { font-family: var(--font-data); font-weight: 700; font-size: 2.5rem; color: var(--data-highlight); line-height: 1; animation: pulse-number 2s infinite ease-in-out; }
.card-meta { font-size: 0.8rem; color: #999; margin-top: 0.5rem; }
@keyframes pulse-number { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

.diagonal-bg { position: relative; overflow: hidden; }
.diagonal-bg::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--bg-dark) 0%, transparent 50%); pointer-events: none; }

.scroll-reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }

.bento-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; grid-auto-rows: auto; }
.bento-grid .wide { grid-column: span 2; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .scroll-reveal { opacity: 1; transform: none; }
  .data-number { animation: none; }
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .header-inner { padding: 0.5rem 1rem; gap: 1rem; }
  .nav-toggle { display: flex; }
  .nav-capsule { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-dark); padding: 1rem; border-bottom: 1px solid var(--border); display: none; }
  .nav-capsule[data-open] { display: block; }
  .nav-list { flex-direction: column; background: none; padding: 0; border-radius: 0; gap: 0.25rem; }
  .nav-list a { padding: 0.75rem 1rem; border-radius: var(--radius-sm); }
  .refresh-node { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-grid .wide { grid-column: span 1; }
}