/* --- Mock Test Core --- */
.qh-mock-card{ background:#ffffff; border-radius:14px; padding:16px; box-shadow:0 8px 30px rgba(16,24,40,0.06); border:1px solid rgba(15,23,42,0.04); max-width:820px; margin:10px auto; }
.qh-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:10px; }
.qh-progress{ font-weight:700; color:#0f172a; }
.qh-timer{ font-weight:700; color:#0f172a; background:#f1f5f9; padding:6px 10px; border-radius:8px; font-size:14px; }
.qh-question{ font-size:18px; font-weight:700; color:#0f172a; margin:6px 0 14px; line-height:1.4; }
.qh-options{ display:flex; flex-direction:column; gap:10px; }
.qh-opt{ display:flex; align-items:center; gap:12px; padding:12px; border-radius:12px; background:#f8fbff; border:1px solid #e6eef9; cursor:pointer; transition: all .12s ease; }
.qh-opt:hover{ transform: translateY(-3px); box-shadow:0 6px 18px rgba(2,6,23,0.04); }
.qh-label{ width:40px; height:40px; border-radius:50%; background:#0f172a; color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:14px; }
.qh-opt .qh-txt{ flex:1; font-size:15px; color:#0f172a; }

/* selected state while doing test */
.qh-opt.selected{ background:#eef2ff; border-color:#6366f1; }

/* controls */
.qh-controls{ display:flex; justify-content:center; gap:10px; margin-top:14px; }
.qh-controls button{ padding:10px 16px; border-radius:10px; border:0; background:#0f172a; color:#fff; font-weight:700; cursor:pointer; }
.qh-controls .qh-prev{ background:#64748b; }

/* result screen */
.qh-result-wrap{ max-width:980px; margin:12px auto; display:flex; gap:18px; flex-direction:column; }
.qh-summary{ display:flex; gap:12px; flex-wrap:wrap; align-items:center; justify-content:flex-start; padding:12px; background:#fff; border-radius:12px; box-shadow:0 6px 20px rgba(2,6,23,0.04); border:1px solid rgba(15,23,42,0.04); }
.qh-s-row{ display:flex; flex-direction:column; align-items:flex-start; padding:8px 14px; border-right:1px dashed #e6eef9; min-width:120px; }
.qh-s-row strong{ display:block; font-size:18px; margin-top:6px; color:#0f172a; }

/* review */
.qh-review{ margin-top:12px; display:flex; flex-direction:column; gap:12px; }
.qh-review-card{ background:#fff; border-radius:12px; padding:12px; border:1px solid #eef2ff; box-shadow: 0 4px 18px rgba(2,6,23,0.03); }
.qh-review-q{ font-weight:700; margin-bottom:8px; color:#0f172a; }
.qh-review-opts{ display:flex; flex-direction:column; gap:8px; }
.qh-r-opt{ display:flex; gap:12px; align-items:center; padding:10px; border-radius:10px; background:#f8fafc; border:1px solid #e6eef9; }
.qh-r-opt .qh-r-lbl{ width:36px; height:36px; border-radius:50%; background:#0f172a; color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; }
.qh-r-opt.correct{ background:#e6fff0; border-color:#16a34a; }
.qh-r-opt.wrong{ background:#fff0f0; border-color:#ef4444; }

/* empty / loader */
.qh-loader, .qh-empty{ text-align:center; padding:28px; color:#0f172a; font-weight:700; }

.qh-opt.correct{ background:#e6fff0 !important; border-color:#16a34a; }
.qh-opt.wrong{ background:#fff0f0 !important; border-color:#ef4444; }
.qh-opt.disabled{ pointer-events:none; }

.qh-question-block{
    border-bottom:1px dashed #e5e7eb;
    padding-bottom:16px;
    margin-bottom:16px;
}



/* responsive */
@media (max-width:720px){
    .qh-mock-card{ padding:12px; border-radius:12px; margin:8px; }
    .qh-question{ font-size:16px; }
    .qh-label{ width:34px; height:34px; font-size:13px; }
    .qh-controls button{ padding:8px 12px; }
}