/* Clean white - gray modern style */
:root{
  --bg:#f5f6f8;
  --card:#ffffff;
  --muted:#6b7280;
  --accent:#0f172a;
  --primary:#1f2937;
  --success:#059669;
  --danger:#ef4444;
  --shadow: 0 6px 18px rgba(15,23,42,0.06);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--primary);font-size:15px}
.container{max-width:1100px;margin:28px auto;padding:20px}
header{margin-bottom:16px}
h1{margin:0;font-size:22px}
.subtitle{margin:4px 0 0;color:var(--muted)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.card{background:var(--card);padding:16px;border-radius:10px;box-shadow:var(--shadow)}
.card.small{max-width:420px}
.field{display:block;margin-bottom:10px}
label.field input[type="file"]{display:block;margin-top:8px}
input,select,button{font:inherit}
input,select{width:100%;padding:8px;border:1px solid #e6e9ef;border-radius:8px;background:white}
button{padding:8px 12px;border-radius:8px;border:0;background:#111827;color:white;cursor:pointer}
button:hover{opacity:0.95}
.canvas-wrap{background:linear-gradient(#fff,#fbfdff);padding:8px;border-radius:8px;border:1px solid #eef2f7}
canvas{width:100%;height:auto;display:block;border-radius:6px;background:white}
.results{margin-top:10px;color:var(--muted);font-size:14px}
.mat-table{width:100%;border-collapse:collapse}
.mat-table th{text-align:left;padding:8px;border-bottom:1px solid #eef2f7;color:var(--muted)}
.mat-table td{padding:8px;border-bottom:1px solid #f6f7fb}
.row{display:flex;gap:8px;margin-top:8px}
.row input{flex:1}
footer{margin-top:18px;color:var(--muted);text-align:center}