:root{--ink:#05070c;--card:#0c1220;--line:#24324a;--text:#eef2f8;--muted:#93a3bb;--blue:#4e7dff;--gold:#d7aa4b}
*{box-sizing:border-box}html,body{margin:0;background:var(--ink);color:var(--text);font-family:Inter,Arial,sans-serif}
a{color:#8eb0ff;text-decoration:none}
.wrap{max-width:980px;margin:0 auto;padding:28px 20px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.brand{font-weight:900;letter-spacing:.04em}.brand span{color:#7d9dff}
.nav a{margin-left:14px;color:#c5d2e6;font-size:13px;font-weight:700}
h1{font-size:42px;line-height:1.05;letter-spacing:-.04em;margin:12px 0}
.lede{color:var(--muted);font-size:18px;line-height:1.55;max-width:640px}
.hero{padding:48px 0 24px}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:9px;padding:12px 16px;font-weight:900;cursor:pointer;color:#fff;background:linear-gradient(135deg,#315fdd,#4c7dff)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:#dfe7f3}
.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;margin:18px 0}
.fine,.muted{color:var(--muted);font-size:13px}
input,textarea,select{width:100%;margin:6px 0;padding:11px 12px;border-radius:9px;border:1px solid #2b405f;background:#050a12;color:#fff}
label{display:block;margin-top:12px;color:#c8d4e6;font-size:13px;font-weight:800}
.chat{min-height:220px;max-height:360px;overflow:auto;border:1px solid var(--line);border-radius:12px;padding:12px;background:#070b14}
.bubble{margin:8px 0;padding:10px 12px;border-radius:10px;max-width:90%}
.bubble.bot{background:#122038}.bubble.me{background:#1b335c;margin-left:auto}
.ticks{display:grid;gap:8px;margin-top:22px;color:#b7c4d8;font-size:14px}
.notice{border:1px solid #315078;border-radius:11px;padding:12px;color:#a8c0e3;margin:12px 0}
.ok{background:#0d2a20;color:#8bf0c4;border:1px solid #225d49;padding:11px;border-radius:9px}
.error{background:#34131b;color:#ffabb2;border:1px solid #6c2a36;padding:11px;border-radius:9px}
.footer{display:flex;gap:16px;flex-wrap:wrap;align-items:center;margin-top:28px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.checklist{display:grid;gap:10px}.checklist>div{display:grid;grid-template-columns:32px 1fr;align-items:center;gap:10px}.checklist b{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#17336d;color:#fff}.checklist span{color:#cbd7e7}
.proof-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.proof-card{border:1px solid var(--line);border-radius:12px;background:#07101b;padding:16px}.proof-card span{display:block;color:var(--muted);font-size:11px}.proof-card b{display:block;margin-top:8px;font-size:18px}.status-live{color:#7af0bd}.status-fail{color:#ff9da6}.code{font-family:Consolas,monospace;overflow-wrap:anywhere}.steps{display:grid;gap:9px}.steps div{padding:12px;border-left:3px solid #4e7dff;background:#07101b}
@media(max-width:700px){h1{font-size:34px}.proof-grid{grid-template-columns:1fr}.nav a{margin-left:8px}}