:root{--primary:rgb(22,115,168);--secondary:rgb(240,191,74);--white:#fff}
*{box-sizing:border-box}
body{font-family:Inter,Arial,Helvetica,sans-serif;background:#f4f7fb;color:#133040;margin:0}
.top{background:var(--primary);color:var(--white);padding:16px 24px;display:flex;justify-content:space-between;align-items:center}
.top h1{margin:0;font-size:20px}
.admin-link{background:var(--secondary);color:#000;padding:8px 12px;border-radius:6px;text-decoration:none}
.container{max-width:1000px;margin:28px auto;padding:0 16px}
.card{background:var(--white);border-radius:10px;padding:18px;box-shadow:0 6px 18px rgba(17,20,30,0.06);margin-bottom:18px}
.close-btn{background:transparent;border:none;font-size:20px;line-height:1;color:#999;float:right;cursor:pointer}
.toolbar{display:flex;gap:8px;align-items:center}
.muted-small{font-size:12px;color:#7b8b96}
label{display:block;margin:8px 0}
input,select{padding:8px;border-radius:6px;border:1px solid #dfe6ee;width:100%}
.row{display:flex;justify-content:flex-end;margin-top:12px}
.primary{background:var(--primary);color:var(--white);border:none;padding:10px 14px;border-radius:8px;cursor:pointer}
.secondary{background:transparent;color:var(--primary);border:1px solid rgba(22,115,168,0.12);padding:8px 12px;border-radius:8px;cursor:pointer}
.card .muted-small{font-size:12px;color:#7b8b96}
.questions > div{padding:12px;border-bottom:1px dashed #eef4f9;display:flex;flex-direction:column}
.questions p{margin:0 0 8px 0}
.questions label{display:flex;align-items:center;margin:4px 0}
.questions input[type="radio"]{margin-right:10px;margin-left:0}
.questions .option-row{display:flex;align-items:center;gap:12px;padding:6px 0;width:100%;justify-content:flex-start}
.questions .option-row input[type="radio"]{flex:0 0 20px;margin:0}
.questions .option-row span{flex:1}
.questions .options-list{display:flex;flex-direction:column;margin-left:0}
.small-input{width:60px;padding:6px}
.schedule-info{background:#f0f6fb;padding:8px;border-radius:6px;margin-top:8px}
.muted{color:#6b7a86}
.exam-header{display:flex;justify-content:space-between;align-items:center}
.timer{background:var(--primary);color:var(--white);padding:8px 12px;border-radius:8px;font-weight:700}
.result-score{font-size:28px;color:var(--primary);font-weight:700}
.attempts-table{width:100%;border-collapse:collapse}
.attempts-table th, .attempts-table td{padding:8px;border-bottom:1px solid #eef4f9}
.muted{color:#6b7a86}
.center{text-align:center}
.file-input{display:block;margin-top:8px}
.section-instruction{ padding:10px; background: #f7fbff; border-left:4px solid rgba(22,115,168,0.12); margin-bottom:10px }
.section-instruction h4{ margin:0 0 6px 0; font-size:1rem }