:root{
  --bg:#0b0d14;--bg2:#10131d;--panel:#141826;--line:rgba(255,255,255,.09);
  --text:#eef0f8;--muted:#9097ad;--violet:#8b5cf6;--cyan:#22d3ee;--green:#34d399;--red:#fb7185;--amber:#fbbf24;
  --grad:linear-gradient(135deg,#8b5cf6,#22d3ee);
  --head:'Sora',system-ui,sans-serif;--body:'DM Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:radial-gradient(900px 500px at 85% -5%,rgba(139,92,246,.18),transparent 60%),radial-gradient(700px 500px at 0% 20%,rgba(34,211,238,.09),transparent 60%),var(--bg);color:var(--text);font-family:var(--body);line-height:1.55;min-height:100vh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3{font-family:var(--head);line-height:1.15;letter-spacing:-.02em}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:#000;padding:8px 12px;z-index:200}
.skip:focus{left:8px;top:8px}
[hidden]{display:none!important}

.demo-banner{background:linear-gradient(90deg,#f59e0b,#fb7185);color:#1a0b00;text-align:center;font-weight:800;font-size:12px;padding:7px 12px;letter-spacing:.04em}
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:20px;padding:14px clamp(16px,4vw,48px);background:rgba(11,13,20,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--head);font-weight:800;font-size:20px}
.logo-mark{width:26px;height:26px;border-radius:8px;background:var(--grad);box-shadow:0 0 24px rgba(139,92,246,.5)}
.links{display:flex;gap:6px;margin-left:12px}
.links a{padding:8px 14px;border-radius:10px;color:var(--muted);font-weight:500;transition:.2s}
.links a:hover,.links a.on{color:var(--text);background:rgba(255,255,255,.06)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.menu-btn{display:none;margin-left:auto;background:var(--panel);border:1px solid var(--line);border-radius:10px;width:42px;height:42px;font-size:18px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;background:var(--panel);border:1px solid var(--line);font-weight:700;font-size:14px}

.btn{border:0;border-radius:12px;padding:12px 20px;font-weight:700;font-size:14px;transition:transform .15s,box-shadow .2s,opacity .2s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn:hover:not(:disabled){transform:translateY(-2px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-primary{background:var(--grad);color:#07090f;box-shadow:0 10px 30px rgba(139,92,246,.3)}
.btn-ghost{background:var(--panel);border:1px solid var(--line)}
.btn-danger{background:rgba(251,113,133,.12);border:1px solid rgba(251,113,133,.35);color:var(--red)}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:10px}
.btn-block{width:100%}

.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
section{padding:clamp(36px,6vw,72px) 0}
.hero{padding-top:clamp(40px,7vw,96px);display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5.4vw,62px);font-weight:800}
.hero p.lead{color:var(--muted);font-size:18px;max-width:52ch;margin:20px 0 28px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:32px;margin-top:36px;flex-wrap:wrap}
.hero-stats b{display:block;font-family:var(--head);font-size:24px}
.hero-stats span{color:var(--muted);font-size:13px}
.stack{position:relative;height:340px}
.stack .gc{position:absolute;width:min(300px,78%);aspect-ratio:1.6;border-radius:20px;padding:20px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 30px 60px rgba(0,0,0,.45);border:1px solid rgba(255,255,255,.18);color:#fff}
.stack .gc:nth-child(1){left:2%;top:0;transform:rotate(-8deg);animation:float 7s ease-in-out infinite}
.stack .gc:nth-child(2){right:0;top:70px;transform:rotate(5deg);animation:float 8s ease-in-out -2s infinite}
.stack .gc:nth-child(3){left:14%;bottom:0;transform:rotate(-2deg);animation:float 9s ease-in-out -4s infinite}
@keyframes float{50%{translate:0 -12px}}
.gc b{font-family:var(--head);font-size:22px}
.gc small{opacity:.85}

.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3.4vw,34px)}
.sec-head p{color:var(--muted)}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.cat{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px;text-align:left;transition:.2s}
.cat:hover,.cat.on{border-color:rgba(34,211,238,.5);background:linear-gradient(145deg,rgba(139,92,246,.16),var(--panel))}
.cat b{display:block;font-family:var(--head)}
.cat span{color:var(--muted);font-size:13px}

.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.field,.toolbar input,.toolbar select{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;width:100%;outline:none}
.field:focus,.toolbar input:focus,.toolbar select:focus{border-color:var(--cyan)}
.toolbar input{flex:1 1 260px;width:auto}
.toolbar select{width:auto;flex:0 0 auto}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.chip{background:var(--bg2);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13px;color:var(--muted);transition:.2s}
.chip.on{background:var(--grad);color:#07090f;border-color:transparent;font-weight:700}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:transform .25s,border-color .25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-5px);border-color:rgba(139,92,246,.5)}
.visual{aspect-ratio:1.9;padding:18px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.visual b{font-family:var(--head);font-size:21px;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.visual small{color:rgba(255,255,255,.8);font-size:12px}
.visual::after{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.14)}
.tag{position:absolute;right:14px;bottom:14px;z-index:1;background:rgba(0,0,0,.35);padding:4px 9px;border-radius:8px;font-size:11px;font-weight:800;color:#fff}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:16px}
.price{display:flex;align-items:baseline;gap:8px}
.price b{font-family:var(--head);font-size:22px}
.price s{color:var(--muted);font-size:13px}
.save{margin-left:auto;color:var(--green);background:rgba(52,211,153,.1);padding:3px 8px;border-radius:6px;font-size:12px;font-weight:700}
.card-actions{display:flex;gap:8px;margin-top:auto}
.card-actions .btn{flex:1}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:48px 16px;border:1px dashed var(--line);border-radius:16px}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

.detail{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.detail .visual{border-radius:24px;aspect-ratio:1.6}
.detail h1{font-size:clamp(26px,4vw,40px);margin:8px 0 12px}
.crumb{color:var(--muted);font-size:14px}
.facts{list-style:none;display:grid;gap:10px;margin:22px 0;color:var(--muted)}
.facts li{padding:12px 14px;background:var(--panel);border:1px solid var(--line);border-radius:12px}
.facts li b{color:var(--text)}

.stats{align-items:stretch;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:14px;margin-bottom:26px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px}
.stat.main{background:radial-gradient(circle at 100% 0,rgba(34,211,238,.22),transparent 50%),linear-gradient(145deg,#171c33,#10131d);border-color:rgba(34,211,238,.25)}
.stat{min-height:0}.stat span{color:var(--muted);font-size:13px}
.stat b{display:block;font-family:var(--head);font-size:28px;margin-top:4px}
.stat .row{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:22px}
.panel h2{font-size:18px;margin-bottom:14px}
.tbl{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:680px}
th{text-align:left;color:var(--muted);font-size:12px;font-weight:700;padding:10px;border-bottom:1px solid var(--line)}
td{padding:14px 10px;border-bottom:1px solid rgba(255,255,255,.05);font-size:14px;vertical-align:middle}
.badge{padding:4px 9px;border-radius:7px;font-size:12px;font-weight:700;white-space:nowrap}
.badge.ok{color:var(--green);background:rgba(52,211,153,.1)}
.badge.rf{color:var(--amber);background:rgba(251,191,36,.1)}
code{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--cyan);font-size:13px}
.timer{font-family:ui-monospace,Menlo,monospace;font-weight:700;color:var(--red)}

.overlay{position:fixed;inset:0;background:rgba(3,4,8,.78);backdrop-filter:blur(8px);z-index:100;display:flex;align-items:center;justify-content:center;padding:16px;overflow-y:auto}
.modal{width:100%;max-width:460px;background:var(--panel);border:1px solid rgba(139,92,246,.35);border-radius:22px;padding:26px;box-shadow:0 40px 100px rgba(0,0,0,.6);animation:pop .22s ease;outline:none;margin:auto}
@keyframes pop{from{opacity:0;transform:scale(.95) translateY(10px)}}
.modal h2{font-size:22px;margin-bottom:6px}
.modal .sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.m-head{display:flex;justify-content:space-between;align-items:start;gap:12px}
.x{background:none;border:0;color:var(--muted);font-size:24px;line-height:1}
.demo-note{background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.3);color:var(--amber);border-radius:10px;padding:10px 12px;font-size:12px;font-weight:700;margin-bottom:16px}
.tabs{display:flex;background:var(--bg2);border-radius:12px;padding:4px;margin-bottom:16px}
.tabs button{flex:1;border:0;background:none;padding:9px;border-radius:9px;font-weight:700;color:var(--muted)}
.tabs button.on{background:var(--panel);color:var(--text)}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}
.err{color:var(--red);font-size:13px;margin-top:8px;min-height:18px}
.sum{background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:14px;margin:14px 0}
.sum div{display:flex;justify-content:space-between;padding:5px 0;font-size:14px}
.sum .tot{border-top:1px solid var(--line);margin-top:6px;padding-top:10px;font-weight:800;font-size:16px}
.good{color:var(--green)}
.codebox{background:var(--bg2);border:1px dashed rgba(34,211,238,.45);border-radius:12px;padding:14px;margin:14px 0;text-align:center}
.codebox code{font-size:18px;letter-spacing:.06em}
.spin{width:16px;height:16px;border:3px solid rgba(0,0,0,.25);border-top-color:#07090f;border-radius:50%;animation:rot .7s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
.m-actions{display:grid;gap:10px;margin-top:16px}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,30px);background:#1c2236;border:1px solid var(--line);padding:12px 18px;border-radius:12px;opacity:0;pointer-events:none;transition:.3s;z-index:300;max-width:90vw;font-size:14px}
.toast.show{opacity:1;transform:translate(-50%,0)}
.footer{border-top:1px solid var(--line);text-align:center;padding:32px 16px 40px;color:var(--muted);font-size:13px;max-width:760px;margin:30px auto 0}
.foot-demo{color:var(--amber);font-weight:800;margin-bottom:8px}

@media(max-width:900px){
  .hero,.detail{grid-template-columns:1fr}
  .stack{height:300px;order:-1}
  .stats{grid-template-columns:1fr 1fr}
  .stat.main{grid-column:1/-1}
}
@media(max-width:780px){
  .menu-btn{display:block}
  .nav{flex-wrap:wrap}
  .nav-right{margin-left:0;width:100%;order:3;justify-content:flex-end}
  .links{display:none;width:100%;flex-direction:column;margin:0;order:4}
  .links.open{display:flex}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}