:root{
  --bg:#0b0d12; --panel:#121622; --muted:#98a2b3; --text:#e5e7eb; --brand:#7c5cff; --brand-2:#22d3ee;
  --ok:#22c55e; --danger:#ef4444; --shadow: 0 8px 30px rgba(0,0,0,.25);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
     background:linear-gradient(180deg,#0b0d12 0%,#0f1320 100%); color:var(--text)}
a{color:inherit}
.container{max-width:1100px;margin:0 auto;padding:24px}
.header{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:16px 24px;
  position:sticky;top:0;background:rgba(18,22,34,.75);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.06);z-index:20}
.header h1{font-size:20px;margin:0;font-weight:700}
.back{padding:8px 12px;border:1px solid rgba(255,255,255,.1);border-radius:10px;background:rgba(255,255,255,.03);text-decoration:none}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-top:24px}
.card{display:block;padding:18px;border-radius:16px;background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.06);box-shadow:var(--shadow);text-decoration:none}
.card:hover{border-color:rgba(124,92,255,.5);transform:translateY(-2px);transition:all .2s ease}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#0b0d12;border:none;font-weight:700;cursor:pointer;box-shadow:var(--shadow)}
.hero{display:grid;place-items:center;min-height:38vh;text-align:center}
.note{color:var(--muted);font-size:14px;margin-top:10px}
.demo{margin-top:24px;padding:24px;border-radius:16px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06)}
.spacer{height:55vh}
.small{font-size:12px;color:var(--muted)}
.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);font-size:12px}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s, transform .6s}
.reveal.visible{opacity:1;transform:none}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center}
.lightbox img{max-height:90vh}
.lightbox.is-open{display:flex}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;padding:24px}
.modal.is-open{display:flex}
.modal .box{background:#fff;color:#111;padding:24px;border-radius:16px;max-width:520px;width:100%}
.snap-y{scroll-snap-type:y mandatory;height:100vh;overflow-y:scroll}
.snap{scroll-snap-align:start;height:100vh;display:grid;place-items:center}
.carousel{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:10px}
.carousel > div{flex:0 0 80%;scroll-snap-align:center;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:24px}
.tooltip{position:relative;display:inline-block;border-bottom:1px dashed rgba(255,255,255,.3)}
.tooltip .tooltip-text{visibility:hidden;opacity:0;transition:opacity .2s, transform .2s;position:absolute;bottom:120%;left:50%;transform:translate(-50%,8px);
  background:#000;padding:8px 10px;border-radius:8px;white-space:nowrap;font-size:12px}
.tooltip:hover .tooltip-text{visibility:visible;opacity:1;transform:translate(-50%,0)}