/* TH Sarabun via Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@400;600;700;800&display=swap');

:root{
  --bg:#f7f9fb;
  --card:#ffffff;
  --text:#0b1324;
  --muted:#6b7280;
  --primary:#0ea5e9;
  --danger:#ef4444;
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; background:var(--bg); color:var(--text); font-family:'Sarabun', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'TH Sarabun New', sans-serif; }
.container{ max-width:980px; margin:24px auto; padding:0 16px; }
.card{ background:var(--card); border-radius:16px; box-shadow:0 6px 20px rgba(2,7,28,.05); padding:20px; margin-bottom:16px; }
.h1{ font-weight:800; font-size:28px; margin:0 0 12px; }
.h2{ font-weight:700; font-size:22px; margin:16px 0 8px; }
.p{ font-size:18px; line-height:1.6; color:var(--text); }
.label{ display:block; font-weight:700; font-size:18px; margin:8px 0 4px; }
.input, .select{ width:100%; padding:12px 14px; font-size:18px; border:2px solid #e5e7eb; border-radius:12px; outline:none; }
.input:focus, .select:focus{ border-color:var(--primary); box-shadow:0 0 0 3px rgba(14,165,233,.15); }
.row{ display:grid; grid-template-columns:repeat(12,1fr); gap:12px; }
.col-6{ grid-column:span 6; } .col-4{ grid-column:span 4; } .col-3{ grid-column:span 3; } .col-12{ grid-column:span 12; }
.btn{ display:inline-block; padding:12px 16px; border-radius:12px; font-weight:700; font-size:18px; border:none; cursor:pointer; }
.btn-primary{ background:var(--primary); color:#fff; }
.btn-danger{ background:var(--danger); color:#fff; }
.btn-muted{ background:#e5e7eb; color:#111827; }
.err{ color:var(--danger); font-weight:700; }
.field-error{ border-color:var(--danger) !important; }
.table{ width:100%; border-collapse:separate; border-spacing:0; font-size:18px; }
.table th, .table td{ padding:10px 12px; border-bottom:1px solid #e5e7eb; text-align:left; }
.section{ padding:12px 14px; background:#f1f5f9; border-radius:12px; margin:10px 0; font-weight:700; }
.footer{ color:var(--muted); font-size:16px; margin-top:10px; }
a{ color:#0ea5e9; text-decoration:none; }
a:hover{ text-decoration:underline; }
.badge{ display:inline-block; padding:4px 8px; border-radius:999px; font-weight:700; font-size:14px; background:#e2e8f0; }