*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#0f172a;color:#e2e8f0;line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
a{color:#3b82f6;text-decoration:none}a:hover{text-decoration:underline}
.card{background:#1e293b;border:1px solid #334155;border-radius:12px;padding:20px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.btn{display:inline-block;padding:10px 20px;background:#3b82f6;color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:#2563eb;text-decoration:none}
.btn-sm{padding:6px 14px;font-size:.85rem}
input:focus{outline:none;border-color:#3b82f6!important}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:12px;font-size:.95rem}
.alert.ok{background:#14532d;border:1px solid #166534;color:#4ade80}
.alert.err{background:#451a1a;border:1px solid #7f1d1d;color:#f87171}
.alert.warn{background:#451a03;border:1px solid #78350f;color:#fbbf24}
.row{margin-bottom:12px}
.row label{font-size:.9rem;color:#94a3b8;font-weight:600}
.row input{width:100%;padding:10px 14px;background:#0f172a;border:1px solid #334155;border-radius:6px;color:#e2e8f0;font-size:.95rem;margin-top:4px}
h1{font-size:1.8rem;margin-bottom:16px;color:#f1f5f9}
h2{font-size:1.4rem;margin-bottom:12px;color:#e2e8f0}
h3{font-size:1.1rem;margin-bottom:8px}
small{font-size:.85rem}