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solid var(--warning-color)}.warning-item.severe{border-left-color:var(--danger-color);background:rgba(220,38,38,.05)}.warning-icon{font-size:1.75rem;flex-shrink:0;margin-top:.25rem}.warning-content strong{display:block;color:var(--text-color);font-size:1.05rem;margin-bottom:.5rem;font-weight:700;font-family:Nunito,sans-serif}.warning-content p{margin:.5rem 0 0;color:var(--text-muted);line-height:1.6}.instructions-list{list-style:none;padding:0;margin:0}.instructions-list li{display:flex;align-items:flex-start;gap:1rem;padding:.75rem 0;border-bottom:1px solid var(--border-color);color:var(--text-muted);line-height:1.6}.instructions-list li:last-child{border-bottom:none}.list-icon{font-size:1.25rem;flex-shrink:0;margin-top:.25rem;color:var(--accent-teal)}.instructions-list strong{color:var(--text-color);font-weight:700}.support-section{background:var(--primary-lightest);padding:2rem;border-radius:8px;margin-bottom:2rem;border-left:4px solid var(--accent-green)}.support-section 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var(--border-color)}.navigator-title{font-size:1.25rem;color:var(--accent-teal);margin-bottom:1rem;text-align:center;font-family:Nunito,sans-serif;font-weight:700}.navigator-legend{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.legend-item{display:flex;align-items:center;gap:.5rem}.legend-box{width:20px;height:20px;border-radius:4px;border:2px solid var(--border-color)}.legend-box.answered{background:var(--success-color);border-color:var(--success-color)}.legend-box.marked{background:var(--warning-color);border-color:var(--warning-color)}.legend-box.unanswered{background:white;border-color:var(--border-color)}.legend-text{font-size:.875rem;color:var(--text-muted)}.navigator-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem}.navigator-btn{width:100%;aspect-ratio:1;border:2px solid var(--border-color);background:white;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s 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768px){.question-navigator{position:static;margin-top:2rem}.navigator-grid{grid-template-columns:repeat(6,1fr);gap:.4rem}.navigator-btn{font-size:.875rem}}.submit-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:2000;padding:1rem}.submit-card{max-width:500px;width:100%;text-align:center;background:white;padding:2rem;border-radius:12px;box-shadow:var(--shadow-lg)}.submit-icon{font-size:4rem;margin-bottom:1rem}.submit-title{font-size:1.75rem;color:var(--text-color);margin-bottom:1.5rem;font-family:Nunito,sans-serif;font-weight:700}.submit-summary{background:var(--bg-light);padding:1.5rem;border-radius:8px;margin-bottom:1.5rem;border:1px solid var(--border-color)}.summary-row{display:flex;justify-content:space-between;padding:.75rem 0;border-bottom:1px solid var(--border-color)}.summary-row:last-child{border-bottom:none}.summary-label{font-weight:600;color:var(--text-color);font-family:Nunito,sans-serif}.summary-value{font-weight:700;font-size:1.1rem;font-family:Nunito,sans-serif}.summary-value.success{color:var(--success-color)}.summary-value.warning{color:var(--warning-color)}.summary-value.danger{color:var(--danger-color)}.submit-warning{background:rgba(217,119,6,.08);border:1px solid rgba(217,119,6,.3);color:#92400e;padding:1rem;border-radius:8px;margin-bottom:1rem;text-align:left;font-family:Nunito,sans-serif}.submit-message{color:var(--text-muted);margin-bottom:2rem;line-height:1.6;font-family:Nunito,sans-serif}.submit-actions{display:flex;gap:1rem;justify-content:center}.submit-actions .btn{padding:.75rem 2rem;font-size:1rem;font-family:Nunito,sans-serif;font-weight:600}@media (max-width: 768px){.submit-actions{flex-direction:column}.submit-actions .btn{width:100%}}.exam-page{max-width:100%;padding:0;width:100%;min-height:100vh;background-color:#fff;display:flex;flex-direction:column}.exam-header{background:white;box-shadow:var(--shadow-sm);border-bottom:1px solid var(--border-color);padding:1.5rem 2rem;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100;margin-bottom:0;width:100%}.exam-info{flex:1}.exam-title{font-size:1.5rem;color:var(--text-color);margin-bottom:.25rem;font-family:Nunito,sans-serif;font-weight:700;display:flex;gap:.5rem}.exam-title .exam-title-accent{color:var(--accent-teal)}.exam-meta{color:var(--text-muted);font-size:.875rem;font-family:Nunito,sans-serif}.exam-content{display:grid;grid-template-columns:1fr 320px;gap:2rem;padding:2rem;max-width:100%;margin:0 auto;width:100%;flex:1;overflow:auto}.exam-content.full-width{padding:2rem;grid-template-columns:1fr 350px;gap:2rem}.exam-main{min-height:500px}.exam-navigation{display:flex;justify-content:space-between;gap:1rem;margin-top:2rem}.exam-navigation .btn{flex:1;padding:.75rem}.exam-sidebar{position:relative}@media (max-width: 1024px){.exam-header{padding:1.25rem 1.5rem}.exam-content{grid-template-columns:1fr 280px;padding:1.5rem;gap:1.5rem}.exam-content.full-width{grid-template-columns:1fr 300px;padding:1.5rem;gap:1.5rem}}@media (max-width: 768px){.exam-header{flex-direction:column;gap:1rem;padding:1rem}.exam-content{grid-template-columns:1fr;padding:1rem}.exam-sidebar{order:2}.exam-navigation{flex-direction:column}.exam-navigation .btn{width:100%}.exam-title{font-size:1.25rem}}@media (max-width: 480px){.exam-header{padding:.75rem}.exam-content{padding:.75rem;gap:1rem}.exam-title{font-size:1.1rem}.exam-main{min-height:300px}}.security-warning-banner{position:fixed;top:0;left:0;right:0;background:var(--danger-color);color:#fff;padding:15px 20px;text-align:center;font-weight:600;font-size:1rem;z-index:9999;box-shadow:var(--shadow-md);animation:slideDown .3s ease-out;font-family:Nunito,sans-serif}.fullscreen-exit-warning{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.95);color:#fbbf24;padding:2rem;border-radius:12px;text-align:center;font-weight:600;font-size:1.1rem;z-index:10000;box-shadow:0 20px 60px #00000080;animation:fadeIn .3s ease-out;border:2px solid #fbbf24;max-width:500px;font-family:Nunito,sans-serif}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.9)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}@keyframes slideDown{0%{transform:translateY(-100%)}to{transform:translateY(0)}}.tab-switch-warning{color:#fff;font-weight:600;font-size:.9rem;margin-top:5px}.exam-error{text-align:center;padding:4rem 2rem}.exam-error h2{color:var(--danger-color);margin-bottom:1rem;font-family:Nunito,sans-serif}