:root{--arit-blue:#008b96;--arit-gold:#f6b800;--muted:#555}
body{background:#fff;color:#222;font-family:'Kanit',sans-serif}
.logo-img{height:72px}
.title{font-size:1.25rem;color:var(--arit-blue);font-weight:600;border-left:6px solid var(--arit-gold);padding-left:12px}
.pdpa-box{background:#fff8e6;border-left:4px solid var(--arit-gold);padding:10px}
.card{border-radius:12px}
.btn-submit{background:var(--arit-gold);color:#000;border:none;padding:8px 18px;border-radius:8px}
.btn-submit:hover{opacity:0.95}
.is-invalid{outline:2px solid #dc3545}