#contact-options,#study-slots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:16px 0}
.contact-option,.study-slot{min-width:0;border:1px solid #ccdce0;border-radius:6px;padding:12px;background:#f5f9f9}
.contact-option:has(:checked),.study-slot:has(:checked){border-color:#008b80;background:#eaf8f4}
#student-form .option-toggle{display:flex;align-items:center;gap:10px;margin:0;min-height:28px;cursor:pointer}
#student-form .option-toggle input{width:20px;height:20px;margin:0;accent-color:#008b80;flex-shrink:0}
#student-form .contact-detail,#student-form .custom-time{margin:12px 0 0}
.slot-time{margin-top:12px}.slot-time select{width:100%}
#student-form [hidden]{display:none!important}
#student-form input:focus-visible,#student-form select:focus-visible{outline:3px solid #ebae35;outline-offset:2px}
.study-slot:has(.option-toggle input:disabled){opacity:.6}
@media(max-width:600px){#contact-options,#study-slots{grid-template-columns:1fr}}