:root { --b:#0f172a; --g:#e2e8f0; --bg:#f8fafc; --w:#fff; --a:#0284c7; }
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial; margin:0; background:var(--bg); color:var(--b); line-height:1.45}
.wrap{max-width:1100px; margin:0 auto; padding:18px}
header{display:flex; gap:12px; align-items:center; justify-content:space-between; flex-wrap:wrap}
.brand{display:flex; gap:10px; align-items:center}
.brand a{color:inherit; text-decoration:none}
h1{font-size:22px; margin:0}
h2{font-size:18px; margin:18px 0 10px}
h3{font-size:15px; margin:14px 0 8px}
p{margin:10px 0}
.card{background:var(--w); border:1px solid var(--g); border-radius:14px; padding:16px; box-shadow:0 4px 14px rgba(2,6,23,.06)}
.grid{display:grid; grid-template-columns: 1.3fr .7fr; gap:14px}
@media(max-width:900px){ .grid{grid-template-columns:1fr;} }
.drop{border:2px dashed #94a3b8; border-radius:14px; padding:20px; text-align:center; background:#fff}
.drop.drag{border-color:#0ea5e9; background:#f0f9ff}
.btn{appearance:none; border:1px solid #cbd5e1; background:#0ea5e9; color:#fff; padding:10px 12px; border-radius:10px; cursor:pointer; font-weight:700}
.btn:disabled{opacity:.5; cursor:not-allowed}
.btn.secondary{background:#fff; color:var(--b)}
.row{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
label{font-size:12px; color:#334155}
input[type="number"], select, input[type="range"]{border:1px solid #cbd5e1; border-radius:10px; padding:9px 10px; background:#fff}
.small{font-size:12px; color:#475569}
.ads{min-height:90px; display:flex; align-items:center; justify-content:center; color:#64748b; border:1px dashed #cbd5e1; border-radius:14px; background:#fff}
table{width:100%; border-collapse:collapse; font-size:13px}
th, td{padding:10px; border-top:1px solid #e2e8f0; vertical-align:middle}
th{text-align:left; color:#334155; font-size:12px; text-transform:uppercase; letter-spacing:.03em}
.pill{display:inline-block; padding:4px 8px; border-radius:999px; background:#f1f5f9; border:1px solid #e2e8f0; font-size:12px}
.right{text-align:right}
a{color:var(--a); text-decoration:none}
a:hover{text-decoration:underline}
nav a{font-weight:700; margin-right:10px}
footer{margin:26px 0 10px; color:#64748b; font-size:12px}
.hr{height:1px;background:#e2e8f0;margin:14px 0}
ul{margin:8px 0 12px}