:root{
  --bg:#f3f5f9; --surface:#fff; --text:#102a43; --muted:rgba(16,42,67,.72);
  --accent:#0b7285; --accent2:#095c6a; --border:rgba(16,42,67,.12); --shadow:0 10px 24px rgba(16,42,67,.10);
  --radius:12px; --max:1100px; --sans:system-ui,-apple-system,Segoe UI,Roboto,Arial;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--text)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px 40px}
.header{background:#0a2a3a;color:#fff}
.header-inner{max-width:var(--max);margin:0 auto;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.header img{height:40px}
.nav{display:flex;gap:12px;flex-wrap:wrap}
.nav a{color:rgba(255,255,255,.92);text-decoration:none;font-weight:700;font-size:13px;letter-spacing:.4px;text-transform:uppercase}
.hero{padding:26px 0}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px;align-items:start}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card h1{margin:0;font-size:24px}
.card h2{margin:0;font-size:18px}
.card .head{padding:18px 18px 0}
.card .body{padding:18px}
.p{margin:10px 0 0;color:var(--muted);line-height:1.5}
.btn{width: 240px;margin:6px auto;display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:10px 14px;border-radius:10px;font-weight:800}
.btn:hover{background:var(--accent2)}
.kpis{display:grid;gap:10px}
.kpi{padding:12px;border:1px solid var(--border);border-radius:12px;background:rgba(11,114,133,.06)}
.kpi b{display:block}
.form{display:grid;gap:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.field label{display:block;font-size:13px;color:var(--muted);margin:0 0 6px}
input,select{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:14px}
input:focus,select:focus{outline:none;box-shadow:0 0 0 5px rgba(11,114,133,.18);border-color:rgba(11,114,133,.55)}
button.btn{border:none;cursor:pointer;width:100%}
.result{margin-top:12px;padding:12px;border-radius:12px;border:1px solid var(--border);background:#f2f6f8;text-align:center;display:grid;gap:6px;font-weight:800}
.result.is-error{border-color:rgba(180,35,24,.35);background:rgba(180,35,24,.06)}
.hint{margin:10px 0 0;color:var(--muted);font-size:13px;line-height:1.45}
.footer{margin-top:18px;color:var(--muted);font-size:12px}