/* Reset & base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; color: #0f172a; background: #f8fafc; 
  font-family: 'Noto Sans SC', 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, "Noto Sans", 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', sans-serif;
}
a { color: #0ea5e9; text-decoration: none; }
.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* Header */
.nav { display:flex; align-items:center; justify-content:space-between; padding: 16px 20px; position: sticky; top:0; backdrop-filter: blur(8px); background: rgba(248,250,252,0.7); z-index: 50; }
.brand { display:flex; align-items:center; gap:12px; font-weight: 800; color:#0f172a; }
.logo { width: 36px; height: 36px; border-radius: 8px; }
.logo-sm { width: 28px; height: 28px; border-radius: 6px; }
.brand-name { font-size: 18px; letter-spacing: 0.5px; }

.nav-links { display:flex; align-items:center; gap: 18px; font-weight: 500; }

/* Buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; padding: 10px 16px; border-radius: 12px; border: 1px solid rgba(0,0,0,0.06); transition: all .2s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(2,6,23,0.08); }
.btn-primary { background: #0ea5e9; color: #fff; border-color: transparent; }
.btn-primary:hover { background:#0284c7; }
.btn-lg { padding: 14px 20px; font-size: 16px; border-radius: 14px; }
.btn-ghost { background: #fff; color:#0f172a; }
.btn-grad { color: #fff; background: linear-gradient(90deg, #2563eb, #7c3aed); border: none; }
.btn-vn { color: #fff; background: linear-gradient(90deg, #059669, #16a34a); border: none; }
.btn-vn:hover { filter: brightness(1.05); }

/* Hero */
.hero { position: relative; overflow: hidden; }
.hero-bg { position:absolute; inset:0; background: radial-gradient(1200px 600px at 10% 10%, rgba(59,130,246,0.18), transparent), radial-gradient(1000px 400px at 90% 50%, rgba(124,58,237,0.18), transparent); }
.hero-inner { display:grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; padding: 64px 0; min-height: 520px; }
.hero-copy .badge { display:inline-block; padding: 6px 10px; font-size: 12px; border-radius: 999px; color:#fff; background: linear-gradient(90deg, #2563eb, #7c3aed); margin-bottom: 16px; }
.hero-copy h1 { margin: 0 0 12px; font-size: 48px; line-height: 1.1; background: linear-gradient(90deg,#0f172a,#334155); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; }
.hero-copy p { margin: 0 0 20px; font-size: 18px; color:#475569; max-width: 640px; }
.cta-row { display:flex; align-items:center; gap: 12px; }
.hero-art { position: relative; }
.orb { position:absolute; border-radius: 50%; filter: blur(20px); opacity: .8; }
.orb-1 { width: 180px; height: 180px; left: 10%; top: 15%; background: rgba(59,130,246,0.35); }
.orb-2 { width: 240px; height: 240px; right: 10%; top: 25%; background: rgba(124,58,237,0.35); }
.orb-3 { width: 120px; height: 120px; right: 25%; bottom: 10%; background: rgba(16,185,129,0.30); }

/* Sections */
.section { padding: 56px 0; }
.section.alt { background: #fff; }
.section-title { font-size: 28px; font-weight: 800; margin: 0 0 6px; }
.section-sub { margin: 0 0 24px; color:#64748b; }

/* Grid */
.grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.card { background:#fff; border:1px solid rgba(2,6,23,0.06); border-radius: 16px; padding: 18px; box-shadow: 0 4px 16px rgba(2,6,23,0.05); }
.card h3 { margin:0 0 8px; font-size: 18px; }
.card.upcoming { background: linear-gradient(180deg, #f8fafc, #fff); }

/* Split */
.split { display:grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: center; }
.illus { position: relative; height: 220px; border-radius: 24px; background: radial-gradient(400px 260px at 70% 40%, rgba(59,130,246,0.20), transparent), radial-gradient(360px 200px at 30% 70%, rgba(124,58,237,0.20), transparent); border: 1px solid rgba(2,6,23,0.06); box-shadow: 0 10px 30px rgba(2,6,23,0.08) inset; }
.stamp { position: absolute; inset: 24px auto auto 24px; width: 72px; height: 72px; border-radius: 18px; background: #0ea5e9; color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:28px; box-shadow: 0 10px 30px rgba(14,165,233,0.3); }

/* Steps */
.steps { list-style:none; padding:0; margin:0; display:flex; gap: 16px; flex-wrap: wrap; }
.steps li { background:#fff; border:1px solid rgba(2,6,23,0.06); border-radius: 14px; padding: 12px 16px; display:flex; align-items:center; gap: 10px; box-shadow: 0 6px 16px rgba(2,6,23,0.05); }
.steps span { display:inline-flex; align-items:center; justify-content:center; width: 24px; height: 24px; border-radius: 999px; background:#0ea5e9; color:#fff; font-size: 12px; font-weight:700; }

/* FAQ */
.faq { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.faq details { background:#fff; border:1px solid rgba(2,6,23,0.06); border-radius: 12px; padding: 12px 16px; }
.faq summary { cursor:pointer; font-weight:600; }
.faq p { color:#475569; }

/* Footer */
.footer { background:#0b1220; color:#e2e8f0; margin-top: 48px; padding: 28px 0; }
.footer-inner { display:flex; align-items:center; justify-content:space-between; gap:16px; }
.footer a { color:#94a3b8; }
.footer a:hover { color:#e2e8f0; }
.footer .brand-name{ font-weight:800; }
.footer .brand-slogan{ color:#94a3b8; font-size: 14px; }
.footer .footer-brand{ display:flex; align-items:center; gap:12px; }
.footer .copyright{ text-align:center; color:#94a3b8; padding-top: 8px; font-size: 14px; }

/* Responsive */
@media (max-width: 1024px) {
  .grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero-inner { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav { position: static; }
  .nav-links { display:none; }
  .grid { grid-template-columns: 1fr; }
  .faq { grid-template-columns: 1fr; }
  .cta-row { flex-direction: column; align-items: flex-start; }
}

/* fix: ensure hero CTA is clickable */
.hero-inner{position:relative;}
.hero-copy{position:relative;z-index:2;}
.hero-art{position:relative;z-index:1;pointer-events:none;}
.orb{pointer-events:none;}

/* ICP footer */
.footer .icp{ text-align:center; color:#94a3b8; font-size:12px; margin-top:4px; }
.footer .icp a{ color:#94a3b8; }
.footer .icp a:hover{ color:#e2e8f0; text-decoration:underline; }