:root{
  --bg:#e6f6ff;
  --card:#ffffff;
  --text:#0b1020;
  --muted:#355a7c;
  --accent:#2f80ff;
  --accent-strong:#1a6bff;
  --border:#bbd7f5;
  --ok:#1f7a54;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}
.page-header,.page-footer{max-width:980px;margin:0 auto;padding:16px}
.page-header h1{margin:12px 0 6px;font-size:22px}
.subtitle{margin:0;color:var(--muted)}
.container{max-width:980px;margin:8px auto 48px;padding:12px}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px; margin:16px 0;
  box-shadow:0 10px 25px rgba(68,118,175,.15);
}
.card.muted{opacity:.98}
.grid{display:grid;grid-template-columns:1fr;gap:10px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
label{font-weight:600}
input,select,textarea{
  width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--text);outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,128,255,.15)}
textarea{resize:vertical;min-height:90px;background:#f9fbff}
.btn{
  padding:10px 14px;border-radius:12px;border:1px solid var(--border);
  background:#ffffff;color:var(--text);cursor:pointer;
}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:#fff;border-color:transparent}
.btn.primary:hover{background:var(--accent-strong)}
.radio{display:flex;gap:8px;align-items:center}
.help{color:var(--muted);margin:.3rem 0 0}
.note{color:var(--muted);margin:0}
#toast{min-height:1.2em;margin-left:6px;color:var(--ok)}
@media (max-width:640px){ .row-3{grid-template-columns:1fr} }