:root{
  --bg:#f5f5f5;
  --surface:#ffffff;
  --accent:#28ce73;
  --text:#000000;
  --muted:#000000;
  --radius:16px;
  --shadow:0 6px 20px rgba(0,0,0,0.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;color:var(--text);background:var(--bg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5}
.container{max-width:1000px;margin:32px auto;padding:0 16px}
.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.brand{font-weight:700;letter-spacing:.2px;font-size:20px}
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:16px 0}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
@media(max-width:840px){.row,.row-3{grid-template-columns:1fr}}
label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:#222;margin-bottom:6px}
input,textarea,select{width:100%;padding:12px 12px;border:1px solid #e6e6e6;border-radius:12px;background:#fff;color:#111;outline:none}
textarea{min-height:120px;resize:vertical}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.btn{appearance:none;border:none;background:var(--accent);color:#fff;padding:12px 16px;border-radius:12px;font-weight:600;cursor:pointer}
.btn.secondary{background:#111;color:#fff}
.btn.ghost{background:transparent;color:#111;border:1px solid #ddd}
.helper{color:#444;font-size:13px}
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.table th,.table td{padding:12px 14px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}
.table th{background:#fafafa;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.notice{background:#f0fff6;border:1px solid #c5f3da;color:#053b22;padding:12px 14px;border-radius:12px}
.signature-pad{border:1px dashed #bbb;border-radius:12px;background:#fff;width:100%;height:220px;touch-action:none}
.signature-actions{display:flex;gap:10px;margin-top:8px}
.contract{background:#fff;border-radius:12px;padding:24px;box-shadow:var(--shadow)}
.contract h1{font-size:22px;margin:0 0 14px}
.contract h2{font-size:16px;margin:18px 0 8px}
.contract p{margin:10px 0}
.contract ul{margin:8px 0 8px 18px}
.contract .meta{font-size:14px;color:#333}
.contract .sig-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px}
/* @media(max-width:840px){.contract .sig-row{grid-template-columns:1fr}} */
.contract .sig-box{border:1px solid #eee;border-radius:12px;padding:12px}
.contract .sig-img{width:100%;height:120px;border:1px dashed #bbb;border-radius:8px;background:#fafafa;background-size:contain;background-repeat:no-repeat;background-position:left center}
footer.small{text-align:center;color:#666;font-size:12px;margin:24px 0 8px}

@media print {
  body {
    background: #fff;
  }
  .container {
    margin: 0;
    padding: 0;
    max-width: 100%;
  }
  .card, .header, .actions, footer {
    display: none;
  }
  .contract {
    box-shadow: none;
    border-radius: 0;
    padding: 0;
  }
}#toast-container{
  position:fixed;
  bottom:20px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  flex-direction:column;
  gap:10px;
  z-index:1000;
}
.toast{
  background:var(--surface);
  color:var(--text);
  padding:12px 16px;
  border-radius:12px;
  box-shadow:var(--shadow);
  opacity:0;
  transform:translateY(20px);
  transition:opacity .3s,transform .3s;
  border-left:4px solid var(--muted);
}
.toast.show{
  opacity:1;
  transform:translateY(0);
}
.toast.success{border-left-color:var(--accent);}
.toast.error{border-left-color:#e74c3c;}