:root{
  --bg:#eef4fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --primary:#1d4ed8;
  --primary2:#0ea5e9;
  --danger:#b91c1c;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 700px at 10% 10%, #d8ecff 0%, transparent 60%),
              radial-gradient(900px 600px at 85% 10%, #c8fff4 0%, transparent 55%),
              var(--bg);
}
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 22px;
  background: linear-gradient(135deg, #0b4f7c 0%, #0a6e86 55%, #0ea5e9 110%);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,0.25);
}
.brand-title{font-size:26px;font-weight:900;letter-spacing:-0.02em}
.brand-sub{font-size:13px;opacity:.92;margin-top:2px}
.pill-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.pill{
  display:inline-flex;
  height:34px;
  align-items:center;
  padding:8px 12px;
  border-radius:999px;
  background: rgba(255,255,255,0.18);
  border:1px solid rgba(255,255,255,0.25);
  font-weight:700;
  font-size:12px;
  white-space:nowrap;
}
.pill-btn{
  display:inline-flex;
  height:34px;
  align-items:center;
  justify-content:center;
  line-height:1;
  white-space:nowrap;
  padding:8px 12px;
  border-radius:999px;
  background: rgba(255,255,255,0.24);
  border:1px solid rgba(255,255,255,0.35);
  color:#fff;
  cursor:pointer;
  font-weight:800;
  font-size:12px;
}
.pill-btn:hover{background:rgba(255,255,255,0.30)}

.container{max-width:1040px;margin:20px auto;padding:0 18px}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 18px 16px;
  box-shadow:0 14px 40px rgba(2,6,23,0.08);
}
.card h1{margin:2px 0 10px;font-size:22px;letter-spacing:-0.02em}
.card h2{margin:18px 0 8px;font-size:16px}
.muted{color:var(--muted);margin:0 0 12px}
.grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}
.field{display:flex;flex-direction:column;gap:6px}
.field > span{font-size:12px;font-weight:800;color:#0b3a55}
input{
  height:42px;
  padding:10px 12px;
  border-radius:10px;
  border:1px solid var(--line);
  outline:none;
  font-size:14px;
}
input:focus{border-color:#93c5fd; box-shadow:0 0 0 4px rgba(147,197,253,0.35)}
.checkbox{flex-direction:row;align-items:center;gap:10px}
.checkbox input{height:18px;width:18px}

.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
button{
  height:40px;
  border-radius:12px;
  padding:0 14px;
  border:1px solid var(--line);
  cursor:pointer;
  font-weight:900;
}
button.primary{
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary2) 100%);
  border-color: transparent;
  color:#fff;
}
button.secondary{
  background:#f1f5f9;
  color:#0f172a;
}
button.primary:hover{filter:brightness(1.03)}
button.secondary:hover{background:#eaf2fb}

.notice{
  margin-top:12px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid #c7d2fe;
  background:#eef2ff;
  font-weight:700;
  font-size:13px;
}
.notice.error{
  border-color:#fecaca;
  background:#fff1f2;
  color:var(--danger);
}
.divider{height:1px;background:var(--line);margin:16px 0}
.advanced{margin-top:14px}
.advanced summary{cursor:pointer;font-weight:900}

.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:10px}
.stat{border:1px solid var(--line);border-radius:14px;padding:12px;background:linear-gradient(180deg,#ffffff 0%, #fbfdff 100%)}
.stat .k{font-size:12px;font-weight:900;color:#0b3a55;text-transform:uppercase;letter-spacing:.08em}
.stat .v{font-size:22px;font-weight:950;margin-top:6px}

@media (max-width: 900px){
  .grid{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 520px){
  .cards{grid-template-columns:1fr}
}