@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700;800&display=swap');

body,
input,
select,
button,
textarea {
    font-family: 'Kanit', sans-serif;
}

body{margin:0;font-family:'Kanit',sans-serif;background:#f5f7f8;color:#1f2937}
.page{max-width:1120px;margin:0 auto;padding:24px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}
.topbar h1{margin:0;font-size:28px}
.topbar-right{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:20px;box-shadow:0 4px 16px rgba(0,0,0,.04)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
label{display:block;font-weight:700;margin-bottom:6px}
input{width:100%;padding:12px 14px;border:1px solid #d1d5db;border-radius:12px;font-size:16px;box-sizing:border-box}
button,.btn{display:inline-block;padding:12px 16px;border-radius:12px;border:0;background:#004c45;color:#fff;text-decoration:none;font-weight:700;cursor:pointer}
.btn-light{background:#fff;color:#004c45;border:1px solid #cfd8dc}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.muted{color:#6b7280}
.error{background:#fef2f2;color:#991b1b;padding:12px 14px;border-radius:12px;margin-bottom:12px}
.ok{background:#ecfdf5;color:#065f46;padding:12px 14px;border-radius:12px;margin-bottom:12px}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:18px}
.kpi{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:16px}
.kpi strong{display:block;font-size:26px}
.qr-box{text-align:center}
.qr-box img{max-width:220px;border:1px solid #e5e7eb;border-radius:12px;padding:10px;background:#fff}
code,pre{background:#f3f4f6;padding:2px 6px;border-radius:8px}
@media (max-width: 860px){.grid,.grid-3,.kpis{grid-template-columns:1fr}.page{padding:14px}}