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strong{color:var(--brand-navy);font-size:1.3rem;display:block}.public-preview-grid span{color:var(--color-muted);font-size:.75rem;display:block}.public-feature-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:1180px;margin:0 auto 24px;display:grid}.public-feature-card{padding:18px}.public-feature-card h2{color:var(--brand-navy);margin:0 0 8px;font-size:1rem}.public-feature-card p{color:var(--color-muted);margin:0;line-height:1.5}.public-disclaimer{justify-content:space-between;align-items:center;gap:18px;max-width:1180px;margin:0 auto;padding:20px;display:flex}.public-disclaimer h2,.about-disclaimer h2,.empty-state h2{color:var(--brand-navy);margin:0 0 8px}.public-disclaimer p,.about-disclaimer p,.empty-state p{color:var(--color-muted);margin:0;line-height:1.6}.guest-banner{background:#fff7ed;border:1px solid #fed7aa;border-radius:14px;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;padding:14px 16px;display:flex}.guest-banner div{gap:3px;display:grid}.guest-banner strong{color:#9a3412}.guest-banner span{color:#7c2d12;font-size:.9rem}.about-page,.mistakes-page{gap:18px;display:grid}.about-header,.mistakes-header{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.about-grid,.mistake-stats,.db-exam-action-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.about-feature,.mistake-stats div,.db-exam-action-card{border:1px solid var(--color-border);background:#fff;border-radius:12px;padding:14px}.about-feature{color:var(--brand-navy);font-weight:700}.about-disclaimer{padding:18px}.mistake-stats strong{color:var(--brand-navy);font-size:1.15rem;display:block}.mistake-stats span{color:var(--color-muted);margin-top:4px;font-size:.78rem;display:block}.mistake-filters{grid-template-columns:1fr 1fr;gap:12px;display:grid}.mistake-filters select,.mistake-filters input{border:1px solid var(--color-border);background:#fff;border-radius:10px;width:100%;padding:11px 12px}.mistake-list{gap:14px;display:grid}.mistake-card{padding:18px}.mistake-card h2{color:var(--brand-navy);margin:12px 0;font-size:1.05rem;line-height:1.45}.mistake-card-header,.mistake-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.mistake-actions{margin-top:14px}.empty-state{text-align:center;padding:24px}.explanation-box{border:1px solid var(--color-border);background:#fff;border-radius:14px;gap:12px;padding:16px;display:grid}.explanation-header{color:var(--brand-navy);justify-content:space-between;gap:10px;font-weight:800;display:flex}.explanation-header-actions{align-items:center;gap:10px;display:flex}.explanation-type{color:var(--brand-red);font-size:.78rem}.report-question-btn{border:1px solid var(--color-border);color:var(--color-muted);cursor:pointer;white-space:nowrap;background:0 0;border-radius:999px;padding:3px 10px;font-size:.72rem;font-weight:600}.report-question-btn:hover{background:var(--brand-red-light);border-color:var(--brand-red);color:var(--brand-red)}.report-question-textarea{min-height:90px;margin-bottom:16px}[data-theme=dark] .report-question-btn{color:#cbd5e1;border-color:#475569}[data-theme=dark] .report-question-btn:hover{border-color:var(--brand-red);color:#fca5a5;background:#dc262633}.correct-answer-box,.your-answer-box{border-radius:10px;padding:10px 12px;font-weight:700}.correct-answer-box{background:var(--brand-green-light);color:var(--brand-green)}.your-answer-box{background:var(--brand-red-light);color:var(--brand-red)}.explanation-copy{color:var(--color-text);line-height:1.6}.db-exam-action-card{text-align:left;cursor:pointer;transition:transform .15s,border-color .15s}.db-exam-action-card:hover{border-color:var(--brand-red);transform:translateY(-1px)}.db-exam-action-card strong,.db-exam-action-card span,.db-exam-action-card small{display:block}.db-exam-action-card strong{color:var(--brand-navy);margin-bottom:6px}.db-exam-action-card span{color:var(--brand-red);font-weight:800}.db-exam-action-card small{color:var(--color-muted);margin-top:6px;line-height:1.4}.db-practice-topic-btn{color:var(--brand-red);cursor:pointer;background:#fff;border:1px solid #fca5a5;border-radius:9px;padding:7px 10px;font-weight:800}.admin-helper-text{color:var(--color-muted);margin:8px 0 0;font-size:.82rem}.login-back-btn{width:100%;margin:0 0 14px}@media (width<=900px){.public-hero,.public-feature-grid,.about-grid,.mistake-stats,.db-exam-action-grid{grid-template-columns:1fr}.public-disclaimer,.guest-banner,.about-header,.mistakes-header{flex-direction:column;align-items:stretch}.mistake-filters{grid-template-columns:1fr}}