:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#f5f7fa;background:#101419;line-height:1.45}
*{box-sizing:border-box}body{margin:0;background:linear-gradient(145deg,#101419,#18232b);min-height:100vh}
.app-shell{width:min(100%,560px);margin:0 auto;padding:24px 18px 40px}
.eyebrow{color:#8bd5c2;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
h1{font-size:clamp(2rem,9vw,3.2rem);line-height:1.02;margin:.45rem 0 1rem}
h2{font-size:1.25rem;margin:0 0 .8rem}.muted{color:#a7b4bf}.card{background:#1d2a33;border:1px solid #30404b;border-radius:20px;padding:18px;margin:14px 0;box-shadow:0 12px 28px #0002}
.stack{display:grid;gap:12px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
button{border:0;border-radius:14px;padding:13px 15px;font:inherit;font-weight:700;color:#10201e;background:#8bd5c2;cursor:pointer}
button.secondary{color:#eaf3f7;background:#304552}button:disabled{cursor:wait;opacity:.55}
.slot{text-align:left}.slot small{display:block;color:#47615e;margin-top:4px}.notice{border-left:4px solid #f1be76;padding:10px 12px;background:#3b3022;border-radius:8px}
.error{border-left-color:#ed8c8c;background:#42292d}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}