*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',Arial,'Noto Sans',sans-serif;background:#f8fafc;color:#0f172a}
.app{max-width:1000px;margin:0 auto;padding:16px 20px}
header h1{margin:8px 0 4px;font-size:22px}
header p{margin:0;color:#475569}
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:980px){.grid{grid-template-columns:2fr 1fr}}
.card{background:#fff;border-radius:16px;box-shadow:0 4px 18px rgba(2,6,23,.06);padding:16px 18px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;margin-bottom:6px}
.inline{display:flex;align-items:center;gap:8px}
input{border:1px solid #cbd5e1;border-radius:12px;padding:10px 12px;font-size:14px;flex:1}
.chip{background:#f1f5f9;border:1px solid #e2e8f0;border-radius:999px;padding:6px 10px;font-size:12px;cursor:pointer}
.segmented{background:#e2e8f0;border-radius:999px;display:inline-flex;padding:4px}
.segmented button{border:none;background:transparent;padding:8px 12px;border-radius:999px;cursor:pointer}
.segmented .active{background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.grid-2{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:640px){.grid-2{grid-template-columns:1fr 1fr}}
.grid-3{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:840px){.grid-3{grid-template-columns:1fr 1fr 1fr}}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.chips button{border:1px solid #cbd5e1;background:#fff;border-radius:999px;padding:6px 10px;font-size:12px;cursor:pointer}
.chips button.active{background:#0284c7;color:#fff;border-color:#0284c7}
.primary{background:#0f172a;color:#fff;border:none;border-radius:12px;padding:10px 12px;cursor:pointer}
.kv{display:flex;flex-direction:column;gap:8px}
.kv div{display:flex;justify-content:space-between;gap:12px}
.kv span{color:#334155}
.warn{color:#b45309;font-size:12px;margin-top:10px}
footer{margin-top:10px;color:#64748b;font-size:12px}