:root{--color-primary: #0d7a3a;--color-primary-light: #10a34d;--color-primary-dark: #0a5f2d;--color-secondary: #1a5f7a;--color-accent: #f59e0b;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--color-bg: #f8fafc;--color-bg-card: #ffffff;--color-bg-dark: #1e293b;--color-text: #1e293b;--color-text-muted: #64748b;--color-text-light: #94a3b8;--color-text-inverse: #ffffff;--color-border: #e2e8f0;--color-border-light: #f1f5f9;--font-family: "Inter", system-ui, -apple-system, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--timer-warning: #f59e0b;--timer-danger: #ef4444}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);color:var(--color-text);background-color:var(--color-bg);background-image:linear-gradient(to bottom right,#0d7a3a08,#1a5f7a08);line-height:1.6;min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark)}button{cursor:pointer;font-family:inherit;font-size:inherit;border:none;background:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-5);font-weight:var(--font-weight-medium);border-radius:var(--radius-md);transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.btn:active{transform:translateY(1px);box-shadow:none}.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));color:var(--color-text-inverse);box-shadow:0 4px 6px -1px #0d7a3a33}.btn-primary:hover{background:linear-gradient(135deg,var(--color-primary-light),var(--color-primary));box-shadow:0 6px 8px -2px #0d7a3a4d}.btn-secondary{background-color:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}.btn-secondary:hover{background-color:#0d7a3a0d}.btn-danger{background:linear-gradient(135deg,var(--color-error),#f87171);color:var(--color-text-inverse)}.btn-danger:hover{opacity:.95;box-shadow:0 4px 6px -1px #ef444433}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.form-input:focus{border-color:var(--color-primary)!important;box-shadow:0 0 0 3px #0d7a3a1a!important}.card{background-color:var(--color-bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-6);border:1px solid var(--color-border-light);transition:box-shadow var(--transition-normal)}.card:hover{box-shadow:var(--shadow-md)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-4)}.header{background:linear-gradient(to right,var(--color-primary-dark),var(--color-primary));color:var(--color-text-inverse);padding:var(--spacing-4) 0;box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.header-content{display:flex;justify-content:space-between;align-items:center}.header-logo{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);text-shadow:0 1px 2px rgba(0,0,0,.1);letter-spacing:-.5px}.header-user{display:flex;align-items:center;gap:var(--spacing-3);background-color:#ffffff1a;padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-full)}.main{flex:1;padding:var(--spacing-8) 0}.footer{background-color:var(--color-bg-dark);color:var(--color-text-light);padding:var(--spacing-6) 0;text-align:center;font-size:var(--font-size-sm);border-top:1px solid rgba(255,255,255,.05)}.timer{font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);font-variant-numeric:tabular-nums;color:var(--color-primary);text-shadow:2px 2px 0px rgba(0,0,0,.05);font-family:monospace}.timer.warning{color:var(--timer-warning)}.timer.danger{color:var(--timer-danger);animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.05)}}.question-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--spacing-2)}@media(max-width:768px){.question-nav{grid-template-columns:repeat(8,1fr)}}.question-nav-item{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);border:1px solid var(--color-border);background-color:var(--color-bg-card);transition:all var(--transition-fast);color:var(--color-text-muted)}.question-nav-item:hover{border-color:var(--color-primary);color:var(--color-primary)}.question-nav-item.current{background-color:var(--color-primary);color:var(--color-text-inverse);border-color:var(--color-primary);box-shadow:0 2px 4px #0d7a3a4d;transform:scale(1.05)}.question-nav-item.answered{background-color:var(--color-success);color:var(--color-text-inverse);border-color:var(--color-success)}.answer-option{display:flex;align-items:flex-start;gap:var(--spacing-3);padding:var(--spacing-4);border:2px solid var(--color-border-light);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);background-color:#fff}.answer-option:hover{border-color:var(--color-primary-light);background-color:#f0fdf4;transform:translate(4px)}.answer-option.selected{border-color:var(--color-primary);background-color:#f0fdf4;box-shadow:0 0 0 2px #0d7a3a1a}.answer-label{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);background-color:var(--color-bg);border:1px solid var(--color-border);font-weight:var(--font-weight-semibold);flex-shrink:0;transition:all var(--transition-fast)}.answer-option.selected .answer-label{background-color:var(--color-primary);color:var(--color-text-inverse);border-color:var(--color-primary)}.answer-content{flex:1;line-height:1.5}.text-center{text-align:center}.text-muted{color:var(--color-text-muted)}.font-semibold{font-weight:var(--font-weight-semibold)}.mt-4{margin-top:var(--spacing-4)}.mt-6{margin-top:var(--spacing-6)}.mt-8{margin-top:var(--spacing-8)}.mb-4{margin-bottom:var(--spacing-4)}.mb-6{margin-bottom:var(--spacing-6)}.gap-4{gap:var(--spacing-4)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.grid{display:grid}.overview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:var(--spacing-4);padding:var(--spacing-2)}@media(max-width:768px){.overview-grid{grid-template-columns:1fr}}.compact-question-card{border:2px solid var(--color-border-light);border-radius:var(--radius-md);padding:var(--spacing-4);cursor:pointer;transition:all var(--transition-fast);background:var(--color-bg-card);position:relative}.compact-question-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.compact-question-card.answered{border-color:var(--color-success);background:#10b98105}.compact-question-card.marked{background:#f59e0b0d}.truncate-2-lines{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.full-list-view{display:flex;flex-direction:column;gap:var(--spacing-4)}.full-list-view-grid{display:grid;grid-template-columns:repeat(2,1fr)}@media(max-width:1200px){.full-list-view-grid{grid-template-columns:1fr}}.full-list-question-item{scroll-margin-top:var(--spacing-8)}.full-list-question-card{background:var(--color-bg-card);border:1px solid var(--color-border-light);border-radius:var(--radius-md);padding:var(--spacing-3);transition:border-color var(--transition-fast)}.full-list-question-card:hover{border-color:var(--color-primary-light)}.flqc-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-2)}.flqc-meta{display:flex;align-items:center;gap:var(--spacing-2)}.flqc-number{font-weight:var(--font-weight-semibold);color:var(--color-primary);font-size:var(--font-size-sm)}.flqc-category{font-size:var(--font-size-xs);color:var(--color-text-muted);background:var(--color-bg-secondary);padding:2px 6px;border-radius:var(--radius-sm)}.flqc-mark{font-size:14px}.flqc-content{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);line-height:1.4;margin-bottom:var(--spacing-3);color:var(--color-text-primary)}.flqc-answers{display:flex;flex-direction:column;gap:var(--spacing-1)}.flqc-answer{display:flex;align-items:flex-start;gap:var(--spacing-2);padding:var(--spacing-2);border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast);font-size:var(--font-size-sm)}.flqc-answer:hover{background:var(--color-bg-secondary)}.flqc-answer.selected{background:#3b82f61a}.flqc-answer input[type=radio]{margin-top:2px;flex-shrink:0}.flqc-answer-label{font-weight:var(--font-weight-medium);color:var(--color-primary);min-width:20px}.flqc-answer-content{flex:1;color:var(--color-text-primary)}.exam-sidebar{position:sticky;top:var(--spacing-4);align-self:flex-start}.view-mode-context-menu{position:fixed;background:var(--color-bg-card);border:1px solid var(--color-border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--spacing-2);z-index:1000;min-width:180px}.view-mode-context-menu-item{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-3) var(--spacing-4);border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast);font-size:var(--font-size-sm);width:100%;border:none;background:transparent;text-align:left}.view-mode-context-menu-item:hover{background:var(--color-border-light)}.view-mode-context-menu-item.active{background:#3b82f61a;color:var(--color-primary)}