:root{--clr-bg:#eef1f8;--clr-bg-alt:#f7f8fc;--clr-surface:#fff;--clr-surface-alt:#f3f5fb;--clr-surface-hi:#eaecf8;--clr-border:#dde1ee;--clr-border-hi:#bcc3e0;--clr-accent:#3730a3;--clr-accent-mid:#4f46e5;--clr-accent-hi:#6366f1;--clr-accent-glow:#4f46e533;--clr-amber:#d97706;--clr-amber-hi:#f59e0b;--clr-amber-glow:#d977062e;--clr-amber-bg:#fffbeb;--clr-teal:#0891b2;--clr-teal-light:#e0f2fe;--clr-teal-glow:#0891b233;--clr-text:#1e1b4b;--clr-text-muted:#4b5563;--clr-text-dim:#9ca3af;--clr-success:#059669;--clr-success-bg:#ecfdf5;--clr-error:#dc2626;--clr-error-bg:#fef2f2;--clr-warning:#d97706;--clr-warning-bg:#fffbeb;--clr-header-bg:#1e1b4b;--clr-header-text:#fff;--radius-xs:6px;--radius-sm:10px;--radius-md:16px;--radius-lg:20px;--radius-xl:28px;--radius-pill:999px;--shadow-card:0 1px 3px #0000000f, 0 8px 32px #3730a31a;--shadow-card-hover:0 4px 16px #3730a324, 0 1px 4px #0000000f;--shadow-btn:0 4px 14px var(--clr-accent-glow);--shadow-amber:0 4px 14px 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p{color:var(--clr-text-muted);margin:0;font-size:.82rem}.violation-toast-warn{color:#92400e!important;margin-top:2px!important;font-size:.8rem!important;font-weight:600!important}.violation-toast-red .violation-toast-warn{color:#991b1b!important}.violation-toast-close{cursor:pointer;color:var(--clr-text-muted);transition:background var(--t-fast) ease;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:4px;flex-shrink:0;padding:2px 5px;font-size:.85rem;line-height:1}.violation-toast-close:hover{background:#00000014}.violation-modal-status{border-radius:var(--radius-sm);margin:14px 0 2px;padding:10px 14px;font-size:.85rem;font-weight:500}.vms-yellow{color:#78350f;background:#fffbeb;border:1.5px solid #f59e0b}.vms-red{color:#991b1b;background:#fff1f2;border:1.5px solid #ef4444}.progress{background:var(--clr-surface-hi);border-radius:var(--radius-pill);height:6px;overflow:hidden}.progress-bar{background:linear-gradient(90deg, var(--clr-accent) 0%, var(--clr-teal) 100%);border-radius:var(--radius-pill);height:100%;transition:width .35s var(--ease-out)}.question-block{flex-direction:column;gap:16px;display:flex}.question-prompt{font-family:var(--font-ml);color:var(--clr-text);word-break:break-word;overflow-wrap:anywhere;font-size:1.06rem;font-weight:600;line-height:1.75}.options{gap:9px;display:grid}.option{border-radius:var(--radius-sm);border:1.5px solid var(--clr-border);background:var(--clr-surface);cursor:pointer;transition:border-color var(--t-fast) ease, background var(--t-fast) ease, box-shadow var(--t-fast) ease, transform var(--t-fast) var(--ease-spring);-webkit-tap-highlight-color:transparent;touch-action:manipulation;align-items:center;gap:12px;padding:13px 16px;display:flex;position:relative}.option:hover:not(.disabled){border-color:var(--clr-accent-hi);background:#6366f10a;transform:translate(2px)}.option.selected{border-color:var(--clr-teal);background:var(--clr-teal-light);box-shadow:0 0 0 1px var(--clr-teal)}.option.selected .option-letter{background:var(--clr-teal);color:#fff;border-color:var(--clr-teal)}.option.disabled{cursor:not-allowed;opacity:.55}.option input[type=radio]{display:none}.option-letter{border:1.5px solid var(--clr-border-hi);width:28px;height:28px;color:var(--clr-text-muted);background:var(--clr-surface-alt);transition:background var(--t-fast) ease, color var(--t-fast) ease, border-color var(--t-fast) ease;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.72rem;font-weight:800;display:flex}.option-text{font-family:var(--font-ml);color:var(--clr-text);word-break:break-word;overflow-wrap:anywhere;font-size:.92rem;font-weight:500;line-height:1.5}.q-nav{background:var(--clr-surface-alt);border:1.5px solid var(--clr-border);border-radius:var(--radius-md);flex-wrap:wrap;gap:6px;padding:14px 16px;display:flex}.q-nav-dot{border:1.5px solid var(--clr-border);background:var(--clr-surface);width:30px;height:30px;color:var(--clr-text-muted);cursor:pointer;transition:background var(--t-fast) ease, border-color var(--t-fast) ease, color var(--t-fast) ease, transform var(--t-fast) ease;-webkit-tap-highlight-color:transparent;font-size:.7rem;font-weight:700;font-family:var(--font-ui);border-radius:7px;justify-content:center;align-items:center;display:flex}.q-nav-dot:hover{border-color:var(--clr-accent-hi);color:var(--clr-accent);transform:scale(1.1)}.q-nav-dot.answered{background:var(--clr-teal-light);border-color:var(--clr-teal);color:#0e7490}.q-nav-dot.marked{color:#78350f;background:#fffbeb;border-color:#f59e0b}.q-nav-dot.answered.marked{color:#78350f;background:#fef9c3;border-color:#d97706}.q-nav-dot.current{background:var(--clr-accent);border-color:var(--clr-accent);color:#fff;box-shadow:0 2px 8px var(--clr-accent-glow)}.question-meta{align-items:flex-start;gap:12px;display:flex}.question-meta .question-prompt{flex:1;margin:0}.mark-review-btn{border-radius:var(--radius-pill);border:1.5px solid var(--clr-border);background:var(--clr-surface-alt);color:var(--clr-text-muted);cursor:pointer;white-space:nowrap;transition:background var(--t-fast) ease, border-color var(--t-fast) ease, color var(--t-fast) ease;-webkit-tap-highlight-color:transparent;font-size:.78rem;font-weight:700;font-family:var(--font-ui);flex-shrink:0;margin-top:2px;padding:6px 13px}.mark-review-btn:hover:not(:disabled),.mark-review-btn.marked{color:#78350f;background:#fffbeb;border-color:#f59e0b}.mark-review-btn:disabled{opacity:.4;cursor:not-allowed}.exam-stats-bar{background:var(--clr-surface-alt);border:1.5px solid var(--clr-border);border-radius:var(--radius-sm);flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;font-size:.78rem;font-weight:600;display:flex}.stat-pill{border-radius:var(--radius-pill);align-items:center;gap:5px;padding:3px 10px;font-size:.74rem;font-weight:700;display:inline-flex}.stat-dot{border-radius:50%;flex-shrink:0;width:7px;height:7px;display:inline-block}.stat-answered{background:var(--clr-teal-light);color:#0e7490}.stat-answered .stat-dot{background:var(--clr-teal)}.stat-marked{color:#78350f;background:#fffbeb}.stat-marked .stat-dot{background:#f59e0b}.stat-remaining{background:var(--clr-surface-hi);color:var(--clr-text-muted)}.stat-remaining .stat-dot{background:var(--clr-text-dim)}.stat-hint{color:var(--clr-text-dim);white-space:nowrap;margin-left:auto;font-size:.72rem;font-weight:500}.submitting-overlay{text-align:center;background:var(--clr-surface);border:1px solid var(--clr-border);border-radius:var(--radius-xl);width:min(480px,100%);min-height:280px;box-shadow:var(--shadow-card);animation:card-in var(--t-slow) var(--ease-out) both;flex-direction:column;justify-content:center;align-items:center;gap:18px;padding:48px 40px;display:flex}.submitting-spinner{border:4px solid var(--clr-surface-hi);border-top-color:var(--clr-accent);border-radius:50%;width:48px;height:48px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.submitting-text{color:var(--clr-text);margin:0;font-size:1.1rem;font-weight:700}.submitting-sub{color:var(--clr-text-muted);margin:0;font-size:.85rem}.score-hero-time{color:var(--clr-text-muted);margin-top:2px;font-size:.82rem;font-weight:500}.marks-legend{background:var(--clr-surface-alt);border:1px solid var(--clr-border);border-radius:var(--radius-sm);flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-size:.78rem;font-weight:600;display:flex}.ml-sep{color:var(--clr-text-dim)}.ml-correct{color:var(--clr-success)}.ml-incorrect{color:var(--clr-error)}.ml-missed{color:var(--clr-text-muted)}.nav-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.nav-row .btn-primary{margin-left:auto}.score-hero{text-align:center;border-radius:var(--radius-lg);border:1.5px solid var(--clr-border);background:linear-gradient(135deg,#3730a30d 0%,#0891b20d 100%);flex-direction:column;align-items:center;gap:10px;padding:28px 0 14px;display:flex}.score-hero-icon{animation:score-pop .6s var(--ease-spring) both;font-size:3rem;line-height:1}@keyframes score-pop{0%{opacity:0;transform:scale(0)rotate(-20deg)}to{opacity:1;transform:scale(1)rotate(0)}}.score-hero-value{color:var(--clr-accent);letter-spacing:-.04em;animation:score-pop .6s 80ms var(--ease-spring) both;font-size:clamp(3rem,8vw,4.5rem);font-weight:800}.score-hero-label{color:var(--clr-text-muted);font-size:.9rem;font-weight:500}.score-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.score-card{background:var(--clr-surface-alt);border:1.5px solid var(--clr-border);border-radius:var(--radius-md);transition:box-shadow var(--t-fast) ease, transform var(--t-fast) ease;flex-direction:column;gap:4px;padding:18px;display:flex}.score-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.score-card.correct{background:var(--clr-success-bg);border-color:#6ee7b7}.score-card.incorrect{background:var(--clr-error-bg);border-color:#fca5a5}.score-card.missed{background:var(--clr-warning-bg);border-color:#fcd34d}.score-label{text-transform:uppercase;letter-spacing:.14em;color:var(--clr-text-muted);font-size:.7rem;font-weight:700}.score-value{color:var(--clr-text);font-size:2rem;font-weight:800}.score-card.correct .score-value{color:var(--clr-success)}.score-card.incorrect .score-value{color:var(--clr-error)}.score-card.missed .score-value{color:var(--clr-warning)}.thankyou-box{border-radius:var(--radius-md);background:#4f46e50d;border:1.5px solid #4f46e533;flex-direction:column;gap:8px;padding:20px 22px;display:flex}.thankyou-box-title{color:var(--clr-accent);align-items:center;gap:7px;font-size:.93rem;font-weight:700;display:flex}.thankyou-box p{color:var(--clr-text-muted);font-size:.88rem;line-height:1.65}.thankyou-box strong{color:var(--clr-text);font-weight:600}.disqualified-alert{background:var(--clr-error-bg);border-radius:var(--radius-md);color:var(--clr-error);border:1.5px solid #dc26264d;align-items:flex-start;gap:10px;padding:14px 16px;font-size:.88rem;font-weight:600;display:flex}.disqualified-icon{flex-shrink:0;font-size:1.1rem}.error-msg{border-radius:var(--radius-sm);background:var(--clr-error-bg);color:var(--clr-error);border:1.5px solid #dc262640;align-items:center;gap:7px;padding:11px 15px;font-size:.85rem;font-weight:600;display:flex}.modal-backdrop{-webkit-backdrop-filter:blur(6px);z-index:999;background:#1e1b4b59;justify-content:center;align-items:center;padding:24px;animation:.18s fade-in;display:flex;position:fixed;inset:0}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.modal{background:var(--clr-surface);border:1.5px solid var(--clr-border);border-radius:var(--radius-xl);text-align:center;width:min(440px,100%);animation:modal-in .28s var(--ease-spring);padding:32px;box-shadow:0 20px 60px #1e1b4b2e,0 4px 12px #00000014}@keyframes modal-in{0%{opacity:0;transform:scale(.92)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}.modal-icon{margin-bottom:10px;font-size:2.4rem;display:block}.modal h3{color:var(--clr-text);margin-bottom:8px}.modal p{color:var(--clr-text-muted);font-size:.9rem}.modal-actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:20px;display:flex}@media (width<=1024px){.card{padding:36px}}@media (width<=720px){.card{border-radius:var(--radius-lg);padding:28px}.form-grid{grid-template-columns:1fr}.score-grid{grid-template-columns:repeat(3,1fr)}.nav-row .btn-primary{width:100%;margin-left:0}.exam-header{flex-wrap:wrap;gap:12px}.timer{font-size:1.45rem}}@media (width<=600px){.app-shell{padding-top:calc(24px + env(safe-area-inset-top,0px));padding-bottom:calc(24px + env(safe-area-inset-bottom,0px));padding-left:calc(14px + env(safe-area-inset-left,0px));padding-right:calc(14px + env(safe-area-inset-right,0px));align-items:flex-start}.card{border-radius:var(--radius-lg);max-width:100%;padding:22px 18px;overflow-x:hidden}.exam-header{padding:14px 16px}.question-prompt{font-size:.98rem}.option{gap:10px;padding:11px 13px}.option-text{font-size:.88rem}.score-grid{grid-template-columns:repeat(3,1fr);gap:8px}.score-value{font-size:1.6rem}.nav-row{flex-direction:column}.nav-row .btn{width:100%}.nav-row .btn-primary{margin-left:0}.q-nav{gap:5px;padding:11px 12px}.q-nav-dot{border-radius:6px;width:26px;height:26px;font-size:.65rem}}@media (width<=400px){.score-grid{grid-template-columns:1fr 1fr}.card{padding:18px 14px}}@media print{body{background:#fff}.app-shell{padding:0}.card{box-shadow:none;border:1px solid #ccc}.btn,.q-nav,.nav-row{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}