:root{
  --bg:#0b1020; --panel:#0d1529; --panel-border:#1e293b;
  --text:#e5e7eb; --muted:#94a3b8;
  --primary-start:#38bdf8; --primary-end:#3b82f6; --focus:#3b82f6;
}
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;margin:0;background:var(--bg);color:var(--text);line-height:1.6}
.container{max-width:1000px;margin:auto;padding:20px}
h1{margin:.4rem 0 .25rem;font-size:2.1rem;font-weight:800}
h2{margin:0 0 12px;font-size:1.35rem;font-weight:700;color:#f1f5f9}
.subtitle{color:var(--muted);margin:.25rem 0 1rem}
.card{background:var(--panel);border:1px solid var(--panel-border);border-radius:16px;padding:22px;margin-bottom:22px;box-shadow:0 6px 16px rgba(0,0,0,.25)}
.row{display:grid;grid-template-columns:1fr;gap:18px;margin-bottom:14px}
.row.compact{margin-bottom:0}
@media(min-width:760px){.row{grid-template-columns:repeat(12,1fr)}}
.col{grid-column:span 12}
@media(min-width:760px){
  .col-3{grid-column:span 3}.col-4{grid-column:span 4}.col-6{grid-column:span 6}.col-8{grid-column:span 8}.col-12{grid-column:span 12}
}
label{display:block;font-weight:600;margin-bottom:6px}
.req::after{content:" *";color:#ef4444}
input,select,textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #253047;background:#0b1324;color:var(--text);transition:border-color .2s,box-shadow .2s,background .2s}
input:focus,select:focus,textarea:focus{border-color:var(--focus);box-shadow:0 0 0 2px rgba(59,130,246,.35);outline:0}
textarea{min-height:110px}
.checkbox{display:flex;align-items:center;gap:10px}
.checkbox input{width:auto;padding:0}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
button{cursor:pointer;border-radius:12px;padding:12px 18px;border:none;font-weight:700;font-size:1rem;transition:transform .08s ease,filter .2s ease}
button:active{transform:translateY(1px) scale(.99)}
button.primary{background:linear-gradient(90deg,var(--primary-start),var(--primary-end));color:#051226;box-shadow:0 6px 14px rgba(0,0,0,.35)}
button.primary:hover{filter:brightness(1.05)}
button.ghost{background:transparent;color:var(--muted);border:1px solid #2b3a55}
button.ghost:hover{color:#cbd5e1;border-color:#3b4b6b}
.muted{color:var(--muted);font-size:.95rem}
.hidden{display:none}
footer{padding-bottom:40px}