:root {
      --bg: #ffffff;
      --text: #1f2937;
      --muted: #6b7280;
      --brand: #2563eb; /* neutral-professional blue */
      --border: #e5e7eb;
      --success: #16a34a;
      --error: #dc2626;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
      color: var(--text); background: var(--bg); line-height: 1.6; font-size: 1rem !important;
    }
    .containerform {
      max-width: 880px; margin: 0 auto; padding: 24px 20px 64px !important;
    }
    header { padding: 32px 0 8px; }
    h1 { margin: 0 0 8px; font-size: 2rem; }
    p.lead { margin: 0 0 24px; color: var(--muted); }
    .card {
      border: 1px solid var(--border); border-radius: 16px; padding: 24px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    }
    form { display: grid; gap: 16px; }
    .grid {
      display: grid; gap: 16px;
      grid-template-columns: 1fr 1fr;
    }
    .grid-3 { grid-template-columns: 1fr 1fr 1fr; }
    @media (max-width: 720px) {
      .grid, .grid-3 { grid-template-columns: 1fr; }
    }
    label { display: block; font-weight: 600; margin-bottom: 6px; }
    .hint { font-size: 0.85rem; color: var(--muted); margin-top: 4px; }
    input[type="text"], input[type="email"], input[type="url"], input[type="tel"],
    input[type="number"], select, textarea {
      width: 100%; padding: 12px 14px; border: 1px solid var(--border);
      border-radius: 10px; background: #fff; font: inherit;
    }
    textarea { min-height: 120px; resize: vertical; }
    input[type="file"] {
      display: block; width: 100%; padding: 10px; border: 1px dashed var(--border);
      border-radius: 10px; background: #fafafa;
    }
    .actions {
      display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 8px;
    }
    .btn {
      appearance: none; border: none; border-radius: 999px; padding: 12px 20px;
      cursor: pointer; font-weight: 600; background: var(--brand); color: #fff;
    }
    .btn.secondary { background: #111827; }
    .req { color: var(--brand); }
    .notice { font-size: 0.9rem; color: var(--muted); }
    .alert {
      display: none; padding: 12px 16px; border-radius: 10px; font-weight: 600;
    }
    .alert.success { background: #ecfdf5; color: var(--success); border: 1px solid #bbf7d0; }
    .alert.error { background: #fef2f2; color: var(--error); border: 1px solid #fecaca; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 1px, 1px); border: 0; }
    .divider { height: 1px; background: var(--border); margin: 8px 0 4px; }
    .inline { display: flex; gap: 8px; align-items: center; }