:root { --bg: #ffffff; --fg: #111111; --primary: #2563eb; --muted: #6b7280; }
[data-theme="dark"] { --bg: #0b1220; --fg: #e5e7eb; --primary: #60a5fa; --muted: #9ca3af; }
* { box-sizing: border-box }
body {
  margin: 0;
  background-color: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: radial-gradient(1200px 600px at 10% 10%, rgba(34,211,238,0.15) 0%, transparent 50%), radial-gradient(1200px 600px at 90% 10%, rgba(124,58,237,0.12) 0%, transparent 50%), radial-gradient(1200px 600px at 50% 90%, rgba(6,182,212,0.15) 0%, transparent 50%);
  background-repeat: no-repeat;
  background-attachment: fixed;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 16px }
.site-header { border-bottom: 1px solid rgba(0,0,0,.06); background: rgba(0,0,0,.02); backdrop-filter: saturate(180%) blur(6px) }
.site-header .container { display: flex; align-items: center; justify-content: space-between; padding: 16px 0 }
.nav a { margin-left: 16px; text-decoration: none; color: var(--fg) }
.hero { padding: 48px 0 }
.hero h2 { font-size: 2rem; margin: 0 0 8px }
.hero p { margin: 0 0 16px; color: var(--muted) }
button { background: var(--primary); color: #fff; border: none; padding: 10px 16px; border-radius: 8px; cursor: pointer }
button:hover { opacity: .9 }
section { padding: 24px 0; border-top: 1px solid rgba(0,0,0,.06) }
form { display: grid; gap: 12px; max-width: 560px }
label { display: grid; gap: 6px }
input, textarea { padding: 10px; border: 1px solid #ddd; border-radius: 6px; background: transparent; color: var(--fg) }
.site-footer { border-top: 1px solid rgba(0,0,0,.06); padding: 24px 0; color: var(--muted) }
@media (max-width: 600px) { .site-header .container { flex-wrap: wrap } .nav a { margin: 8px 8px 0 0 } }
/* Utilities */
.glass { background: rgba(255,255,255,0.05); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.1) }
.gradient { background-image: radial-gradient(1200px 600px at 10% 10%, rgba(34,211,238,0.15) 0%, transparent 50%), radial-gradient(1200px 600px at 90% 10%, rgba(124,58,237,0.12) 0%, transparent 50%), radial-gradient(1200px 600px at 50% 90%, rgba(6,182,212,0.15) 0%, transparent 50%) }

/* Buttons */
.btn-primary { display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; padding: 12px 24px; background: #22d3ee; color: #0f172a; font-weight: 500; box-shadow: 0 0 24px rgba(6,182,212,.35); transition: background-color .2s ease, box-shadow .2s ease, transform .2s ease }
.btn-primary:hover { background: #06b6d4; box-shadow: 0 0 32px rgba(6,182,212,.5) }
.btn-secondary { display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; padding: 12px 24px; border: 1px solid #1f2937; color: #e5e7eb; background: transparent; transition: border-color .2s ease, transform .2s ease }
.btn-secondary:hover { border-color: #374151 }
/* Layout helpers */
.section-xl { max-width: 80rem; margin: 0 auto; padding: 7rem 1.5rem }
.grid { display: grid }
.grid-2-md { grid-template-columns: 1fr }
@media (min-width: 768px) { .grid-2-md { grid-template-columns: 1fr 1fr } }
.gap-12 { gap: 3rem }
.gap-6 { gap: 1.5rem }
.items-center { align-items: center }
.flex { display: flex }
.flex-1 { flex: 1 1 auto }
.opacity-80 { opacity: .8 }
.text-center { text-align: center }
.mt-6 { margin-top: 1.5rem }
.mt-10 { margin-top: 2.5rem }
.mt-20 { margin-top: 5rem }
.p-4 { padding: 1rem }
.p-6 { padding: 1.5rem }
.rounded { border-radius: .5rem }
.rounded-xl { border-radius: 12px }
.rounded-2xl { border-radius: 16px }
.rounded-full { border-radius: 9999px }
.badge { display:inline-block; margin-bottom:1rem; padding: .25rem 1rem; font-size:.75rem; background-color: rgba(34,211,238,.10); color:#22d3ee; border-radius:9999px }
.heading-hero { font-size: 3rem; font-weight: 800; line-height: 1.2 }
.text-muted { color: #9ca3af }
.text-2xl { font-size: 1.5rem }
.text-xs { font-size: .75rem }
.font-bold { font-weight: 700 }
.stats-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:1.5rem }
.stat-card { padding: 1rem }
.relative { position: relative }
.absolute { position: absolute }
.neg-top-10 { top: -2.5rem }
.neg-left-10 { left: -2.5rem }
.w-72 { width: 18rem }
.h-72 { height: 18rem }
.blur-3xl { filter: blur(48px) }
.bg-cyan-500-20 { background-color: rgba(6,182,212,.20) }
.shadow-2xl { box-shadow: 0 40px 80px rgba(0,0,0,.3) }
.border { border: 1px solid rgba(255,255,255,.1) }
.h-px { height: 1px }
.bg-white-10 { background-color: rgba(255,255,255,.1) }
.bg-white-5 { background-color: rgba(255,255,255,.05) }
.w-24 { width: 6rem }
.h-8 { height: 2rem }