@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&display=swap');
*{font-family:'Sarabun',sans-serif}body{background:#f5fbff;color:#1f2937}.navbar{background:linear-gradient(135deg,#38bdf8,#60a5fa)}.brand-title{font-weight:700;color:white}.card{border:0;border-radius:18px;box-shadow:0 12px 30px rgba(15,23,42,.08)}.btn-primary{background:#2563eb;border-color:#2563eb;border-radius:12px}.btn-success,.btn-warning,.btn-danger,.btn-outline-primary,.btn-outline-secondary{border-radius:12px}.table{vertical-align:middle}.page-title{font-weight:700;color:#0f172a}.small-muted{color:#64748b}.cert-page{width:1123px;height:794px;margin:20px auto;background:white;border:14px double #2563eb;position:relative;padding:70px 85px;text-align:center}.cert-title{font-size:54px;font-weight:700;color:#1d4ed8;margin-top:20px}.cert-subtitle{font-size:28px;margin-top:15px}.cert-name{font-size:44px;font-weight:700;color:#111827;margin:28px 0;border-bottom:2px solid #93c5fd;display:inline-block;padding:0 40px 10px}.cert-text{font-size:25px;line-height:1.8}.cert-no{position:absolute;top:25px;right:40px;font-size:18px;color:#475569}.cert-footer{position:absolute;bottom:55px;left:85px;right:85px;display:flex;justify-content:space-between;align-items:end}.sign-box{width:360px;text-align:center;font-size:21px}.qr-box{font-size:14px;color:#64748b}.print-btn{position:fixed;top:15px;right:15px;z-index:999}@media print{body{background:white}.no-print,.navbar,.print-btn{display:none!important}.cert-page{margin:0;box-shadow:none;page-break-after:always}@page{size:landscape;margin:0}}