@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--primary-bg:#eef2ff;--success:#10b981;--success-bg:#d1fae5;--danger:#ef4444;--danger-bg:#fee2e2;--warning:#f59e0b;--warning-bg:#fef3c7;--bg:#f8fafc;--bg-white:#fff;--bg-card:#fff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border:#e2e8f0;--border-focus:#6366f1;--sidebar-bg:#1e1b4b;--sidebar-text:#c7d2fe;--sidebar-active:#6366f1;--sidebar-hover:#2d2a5e;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 16px #0000001a;--shadow-lg:0 10px 40px #00000026;--radius:12px;--radius-sm:8px;--radius-lg:16px;--sidebar-width:260px;--topbar-height:64px;--transition:.2s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{background:var(--bg);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}img{max-width:100%}.loading-screen{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:32px;height:32px;animation:.7s linear infinite spin}.spinner.large{border-width:4px;width:48px;height:48px}@keyframes spin{to{transform:rotate(360deg)}}.center-content{justify-content:center;align-items:center;padding:60px 20px;display:flex}.center-content.fullpage{flex-direction:column;gap:20px;min-height:100vh}.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-sm);transition:background var(--transition), transform var(--transition), box-shadow var(--transition);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;display:inline-flex}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #6366f166}.btn-primary:disabled{opacity:.7;cursor:not-allowed;transform:none}.btn-primary.btn-full{width:100%}.btn-primary.btn-lg{border-radius:var(--radius);padding:14px 32px;font-size:16px}.btn-secondary{background:var(--primary-bg);color:var(--primary);border:1px solid var(--primary-light);border-radius:var(--radius-sm);transition:all var(--transition);justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;display:inline-flex}.btn-secondary:hover:not(:disabled){background:var(--primary);color:#fff;transform:translateY(-1px)}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);transition:all var(--transition);background:0 0;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:500;display:inline-flex}.btn-ghost:hover:not(:disabled){background:var(--bg);color:var(--text-primary);border-color:var(--text-secondary)}.btn-danger{background:var(--danger);color:#fff;border-radius:var(--radius-sm);transition:all var(--transition);border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;display:inline-flex}.btn-danger:hover:not(:disabled){background:#dc2626;transform:translateY(-1px)}.btn-sm{padding:6px 14px;font-size:13px}.btn-spinner{border:2px solid #fff6;border-top-color:#fff;border-radius:50%;width:16px;height:16px;animation:.7s linear infinite spin;display:inline-block}.form-group{flex-direction:column;gap:6px;margin-bottom:18px;display:flex}.form-group label{color:var(--text-primary);font-size:14px;font-weight:600}.form-group input,.form-group textarea,.form-group select{border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);background:var(--bg-white);transition:border-color var(--transition), box-shadow var(--transition);outline:none;padding:10px 14px;font-size:14px}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #6366f11f}.form-group textarea{resize:vertical;min-height:72px}.password-input-wrapper{align-items:center;width:100%;display:flex;position:relative}.password-input-wrapper input{padding-right:44px}.password-toggle-btn{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);transition:color var(--transition);background:0 0;border:none;justify-content:center;align-items:center;padding:6px;display:flex;position:absolute;right:10px}.password-toggle-btn:hover{color:var(--primary)}.alert{border-radius:var(--radius-sm);margin-bottom:16px;padding:12px 16px;font-size:14px;font-weight:500}.alert-error{background:var(--danger-bg);color:#b91c1c;border:1px solid #fca5a5}.alert-success{background:var(--success-bg);color:#065f46;border:1px solid #6ee7b7}.auth-page{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-container{background:var(--bg-white);border-radius:var(--radius-lg);width:100%;max-width:420px;box-shadow:var(--shadow-lg);padding:48px 40px}.auth-logo{align-items:center;gap:10px;margin-bottom:28px;display:flex}.logo-icon{background:linear-gradient(135deg, var(--primary), var(--primary-dark));color:#fff;border-radius:10px;justify-content:center;align-items:center;width:40px;height:40px;font-size:20px;font-weight:800;display:flex}.logo-text{color:var(--text-primary);letter-spacing:-.5px;font-size:22px;font-weight:800}.auth-title{color:var(--text-primary);margin-bottom:6px;font-size:26px;font-weight:700}.auth-subtitle{color:var(--text-secondary);margin-bottom:28px;font-size:14px}.auth-form{flex-direction:column;display:flex}.auth-footer{text-align:center;color:var(--text-secondary);margin-top:20px;font-size:14px}.auth-link{color:var(--primary);transition:color var(--transition);font-weight:600}.auth-link:hover{color:var(--primary-dark)}.student-layout{background:var(--bg);flex-direction:column;min-height:100vh;display:flex}.student-header{background:var(--bg-white);border-bottom:1px solid var(--border);height:var(--topbar-height);z-index:50;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:0 24px;display:flex;position:sticky;top:0}.header-brand{align-items:center;gap:10px;display:flex}.header-right{align-items:center;gap:12px;display:flex}.user-email{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;max-width:200px;font-size:13px;font-weight:500;overflow:hidden}.student-main{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:32px 24px}.hero-banner{border-radius:var(--radius-lg);color:#fff;background:linear-gradient(135deg,#4f46e5 0%,#6366f1 50%,#818cf8 100%);margin-bottom:32px;padding:32px 36px;box-shadow:0 10px 25px -5px #4f46e54d}.hero-title{letter-spacing:-.5px;margin-bottom:8px;font-size:26px;font-weight:800}.hero-subtitle{color:#ffffffe6;max-width:600px;font-size:15px;line-height:1.5}.assessment-section{margin-bottom:40px}.section-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.section-title{color:var(--text-primary);font-size:20px;font-weight:700}.section-subtitle{color:var(--text-secondary);margin-top:2px;font-size:14px}.count-badge{background:var(--primary-bg);color:var(--primary);border:1px solid var(--primary-light);border-radius:20px;padding:6px 14px;font-size:13px;font-weight:700}.assessment-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}@media (width<=992px){.assessment-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=640px){.assessment-grid{grid-template-columns:1fr}}.assessment-card{background:var(--bg-white);border:1.5px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;transition:all .25s;display:flex;overflow:hidden;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -1px #00000008}.assessment-card.card-available:hover{border-color:var(--primary-light);transform:translateY(-3px);box-shadow:0 12px 24px -6px #6366f12e}.assessment-card.card-completed{background:#f8fafc;border-color:#e2e8f0}.card-body{flex-direction:column;flex:1;padding:24px 24px 20px;display:flex}.card-top-row{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:14px;display:flex}.card-title{color:var(--text-primary);letter-spacing:-.3px;font-size:19px;font-weight:700;line-height:1.3}.status-pill{white-space:nowrap;border-radius:14px;flex-shrink:0;padding:5px 12px;font-size:12px;font-weight:700}.status-available{background:var(--primary-bg);color:var(--primary-dark)}.status-completed{color:#137333;background:#e6f4ea}.card-description{color:var(--text-secondary);flex:1;margin-bottom:20px;font-size:14px;line-height:1.6}.card-meta{flex-wrap:wrap;gap:10px;margin-top:auto;display:flex}.btn-completed{color:#475569;border-radius:var(--radius-sm);cursor:not-allowed;opacity:.9;background:#f1f5f9;border:1.5px solid #cbd5e1;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;display:inline-flex}.btn-completed.btn-full{width:100%}.meta-badge{background:var(--primary-bg);color:var(--primary);border-radius:20px;align-items:center;gap:4px;padding:5px 12px;font-size:13px;font-weight:600;display:inline-flex}.meta-icon{font-size:14px}.card-footer{border-top:1px solid var(--border);background:var(--bg);padding:16px 24px}.empty-state{text-align:center;color:var(--text-secondary);padding:64px 24px}.empty-state.small{padding:32px 16px}.empty-icon{margin-bottom:16px;font-size:48px}.empty-state h3{color:var(--text-primary);margin-bottom:8px;font-size:18px;font-weight:600}.empty-state p{margin-bottom:20px;font-size:14px}.take-assessment-layout{background:var(--bg);flex-direction:column;min-height:100vh;display:flex}.assessment-header{background:var(--bg-white);border-bottom:1px solid var(--border);min-height:var(--topbar-height);z-index:50;box-shadow:var(--shadow-sm);align-items:center;gap:16px;padding:0 24px;display:flex;position:sticky;top:0}.assessment-header-info{flex:1}.assessment-header-info h2{font-size:17px;font-weight:700}.assessment-header-info p{color:var(--text-secondary);font-size:13px}.assessment-meta-header{color:var(--text-secondary);white-space:nowrap;font-size:13px}.back-btn{white-space:nowrap;padding:8px 14px;font-size:13px}.take-assessment-main{flex:1;width:100%;max-width:800px;margin:0 auto;padding:32px 24px}.question-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);margin-bottom:20px;padding:28px}.question-card:hover{box-shadow:var(--shadow-sm)}.question-card-header{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.required-tag{color:#e11d48;background:#ffe4e6;border-radius:4px;padding:2px 8px;font-size:11px;font-weight:700}.question-card.has-error{background:#fff5f5;border:1.5px solid #f87171;box-shadow:0 0 0 3px #ef44441f}.question-error-note{color:#b91c1c;border-radius:var(--radius-sm);background:#fee2e2;border:1px solid #fca5a5;align-items:center;gap:6px;margin-top:14px;padding:8px 12px;font-size:13px;font-weight:600;display:flex}.unanswered-summary-box{border-radius:var(--radius);flex-direction:column;gap:12px;margin-bottom:24px;display:flex}.summary-box-title{font-size:15px;font-weight:700}.unanswered-list-wrap{flex-direction:column;gap:6px;font-size:14px;display:flex}.unanswered-bullet-list{flex-wrap:wrap;gap:12px;padding-left:4px;list-style:none;display:flex}.unanswered-bullet-list li{color:#991b1b;font-weight:600}.scrollTo-unanswered-btn{align-self:flex-start;margin-top:4px;color:#b91c1c!important;background:#fff!important;border-color:#fca5a5!important}.question-number{color:var(--primary);text-transform:uppercase;letter-spacing:.5px;font-size:12px;font-weight:700}.question-text{color:var(--text-primary);margin-bottom:20px;font-size:16px;font-weight:600;line-height:1.5}.options-list{flex-direction:column;gap:10px;display:flex}.option-label{border:2px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);align-items:center;gap:12px;padding:12px 16px;display:flex}.option-label:hover{border-color:var(--primary-light);background:var(--primary-bg)}.option-label.selected{border-color:var(--primary);background:var(--primary-bg)}.option-label input[type=radio]{display:none}.option-letter{background:var(--border);width:28px;height:28px;color:var(--text-secondary);transition:all var(--transition);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.option-label.selected .option-letter{background:var(--primary);color:#fff}.option-text{color:var(--text-primary);font-size:15px;font-weight:500}.input-answer-wrap{margin-top:4px}.answer-textarea{border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);resize:vertical;transition:border-color var(--transition), box-shadow var(--transition);outline:none;padding:12px;font-size:14px}.answer-textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #6366f11f}.submit-section{justify-content:center;padding:32px 0;display:flex}.success-card{background:var(--bg-white);border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-md);width:100%;max-width:480px;padding:60px 48px}.success-icon{margin-bottom:20px;font-size:64px}.success-card h2{color:var(--text-primary);margin-bottom:12px;font-size:28px;font-weight:700}.success-message{color:var(--text-secondary);margin-bottom:28px;font-size:16px}.error-card{background:var(--bg-white);border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-md);max-width:440px;padding:48px}.error-icon{margin-bottom:16px;font-size:56px}.error-card h2{color:var(--text-primary);margin-bottom:20px;font-size:20px;font-weight:700;line-height:1.4}.admin-layout{background:var(--bg);min-height:100vh;display:flex}.admin-sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);z-index:100;height:100vh;transition:transform var(--transition);flex-direction:column;display:flex;position:fixed;top:0;left:0;overflow-y:auto}.sidebar-header{border-bottom:1px solid #ffffff14;align-items:center;gap:10px;padding:20px 20px 16px;display:flex}.sidebar-header .logo-icon{background:linear-gradient(135deg, var(--primary), #8b5cf6)}.sidebar-header .logo-text{color:#fff;font-size:18px}.sidebar-close{color:var(--sidebar-text);cursor:pointer;background:0 0;border:none;margin-left:auto;padding:4px;font-size:18px;display:none}.sidebar-user{border-radius:var(--radius-sm);background:#ffffff12;border:1px solid #ffffff1f;align-items:center;gap:12px;margin:12px 12px 8px;padding:12px 14px;display:flex}.user-avatar{background:linear-gradient(135deg, var(--primary), #8b5cf6);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:15px;font-weight:700;display:flex}.user-info{flex-direction:column;flex:1;display:flex;overflow:hidden}.user-name{color:#fff;font-size:13px;font-weight:700;line-height:1.2;display:block}.user-email-sm{color:#c7d2fe;text-overflow:ellipsis;white-space:nowrap;margin-top:2px;font-size:11px;display:block;overflow:hidden}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:12px;display:flex}.nav-item{border-radius:var(--radius-sm);color:var(--sidebar-text);transition:all var(--transition);text-align:left;cursor:pointer;background:0 0;border:none;align-items:center;gap:12px;width:100%;padding:11px 14px;font-size:14px;font-weight:500;display:flex}.nav-item:hover{background:var(--sidebar-hover);color:#fff}.nav-item.active{background:var(--sidebar-active);color:#fff}.nav-icon{flex-shrink:0;font-size:18px}.nav-label{font-size:14px}.sidebar-footer{border-top:1px solid #ffffff14;padding:12px}.logout-item{color:#fca5a5!important}.logout-item:hover{color:#fff!important;background:#ef444426!important}.admin-content{margin-left:var(--sidebar-width);flex-direction:column;flex:1;min-height:100vh;display:flex}.admin-topbar{background:var(--bg-white);border-bottom:1px solid var(--border);height:var(--topbar-height);z-index:50;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:0 28px;display:flex;position:sticky;top:0}.topbar-left{align-items:center;gap:16px;display:flex}.hamburger{color:var(--text-primary);cursor:pointer;background:0 0;border:none;padding:4px;font-size:22px;display:none}.topbar-title{color:var(--text-primary);font-size:18px;font-weight:700}.admin-badge{background:var(--primary-bg);color:var(--primary-dark);letter-spacing:.5px;border:1px solid var(--primary-light);border-radius:6px;padding:4px 10px;font-size:11px;font-weight:800}.admin-main{flex:1;width:100%;max-width:1400px;padding:32px 28px}.sidebar-overlay{z-index:90;background:#00000080;display:none;position:fixed;inset:0}.stats-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin-bottom:32px;display:grid}.stat-card{background:var(--bg-white);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition), transform var(--transition);align-items:center;gap:16px;padding:24px;display:flex}.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-icon{font-size:36px}.stat-value{color:var(--text-primary);font-size:32px;font-weight:800;line-height:1}.stat-label{color:var(--text-secondary);margin-top:4px;font-size:13px;font-weight:500}.stat-blue .stat-value{color:#3b82f6}.stat-green .stat-value{color:var(--success)}.stat-purple .stat-value{color:#8b5cf6}.stat-orange .stat-value{color:var(--warning)}.dashboard-section{background:var(--bg-white);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}.section-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.section-header h3{font-size:16px;font-weight:700}.results-table-wrap{overflow-x:auto}.results-table{border-collapse:collapse;width:100%;font-size:14px}.results-table th{background:var(--bg);text-align:left;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);white-space:nowrap;padding:12px 16px;font-size:12px;font-weight:700}.results-table td{border-bottom:1px solid var(--border);color:var(--text-primary);vertical-align:middle;padding:14px 16px}.results-table tbody tr:hover{background:var(--bg)}.results-table tbody tr:last-child td{border-bottom:none}.marks-cell{color:var(--primary);font-weight:700}.email-cell{text-overflow:ellipsis;white-space:nowrap;max-width:200px;font-weight:500;overflow:hidden}.status-badge{white-space:nowrap;border-radius:20px;align-items:center;padding:3px 10px;font-size:12px;font-weight:600;display:inline-flex}.status-complete{background:var(--success-bg);color:#065f46}.status-pending{background:var(--warning-bg);color:#92400e}.pending-label{color:var(--warning);font-size:13px;font-style:italic}.btn-danger-light{background:var(--danger-bg);color:#dc2626;border-radius:var(--radius-sm);transition:all var(--transition);border:1px solid #fca5a5;justify-content:center;align-items:center;gap:6px;padding:6px 14px;font-size:13px;font-weight:600;display:inline-flex}.btn-danger-light:hover:not(:disabled){color:#fff;background:#dc2626;border-color:#dc2626}.admin-assessment-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px;display:grid}.admin-assessment-card{background:var(--bg-white);border:1.5px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;transition:all .25s;display:flex;overflow:hidden}.admin-assessment-card:hover{border-color:var(--primary-light);transform:translateY(-2px);box-shadow:0 10px 25px -5px #6366f11f}.admin-assessment-card .card-body{flex-direction:column;flex:1;padding:24px;display:flex}.date-badge{color:var(--text-secondary);background:var(--bg);white-space:nowrap;border-radius:12px;padding:4px 10px;font-size:12px;font-weight:600}.admin-assessment-card .card-actions{border-top:1px solid var(--border);background:#f8fafc;justify-content:flex-end;align-items:center;gap:10px;padding:14px 24px;display:flex}.assessment-form-page{max-width:860px}.form-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:20px;padding:28px}.form-card-title{color:var(--text-primary);border-bottom:1px solid var(--border);margin-bottom:20px;padding-bottom:12px;font-size:16px;font-weight:700}.total-marks-display{background:var(--primary-bg);color:var(--primary);border-radius:8px;align-items:center;gap:8px;padding:8px 16px;font-size:14px;font-weight:500;display:inline-flex}.question-builder-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:border-color var(--transition);margin-bottom:16px;padding:24px;position:relative}.question-builder-card:hover{border-color:var(--primary-light)}.question-builder-header{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;display:flex}.question-number-badge{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;font-size:13px;font-weight:700;display:flex}.question-type-selector{flex:1;align-items:center;gap:8px;display:flex}.question-type-selector label{color:var(--text-secondary);white-space:nowrap;font-size:13px;font-weight:600}.question-type-selector select{border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-white);color:var(--text-primary);cursor:pointer;outline:none;padding:7px 12px;font-size:13px;font-weight:500}.question-type-selector select:focus{border-color:var(--border-focus)}.marks-inline{align-items:center;gap:8px;display:flex}.marks-inline label{color:var(--text-secondary);white-space:nowrap;font-size:13px;font-weight:600}.marks-input{border:1.5px solid var(--border);border-radius:var(--radius-sm);text-align:center;width:70px;transition:border-color var(--transition);outline:none;padding:7px 10px;font-size:14px;font-weight:600}.marks-input:focus{border-color:var(--border-focus)}.remove-question-btn{color:var(--danger);transition:background var(--transition);background:0 0;border:none;border-radius:6px;margin-left:auto;padding:4px 8px;font-size:18px}.remove-question-btn:hover{background:var(--danger-bg)}.options-builder{margin-bottom:16px}.options-builder>label{color:var(--text-primary);margin-bottom:10px;font-size:14px;font-weight:600;display:block}.option-row{align-items:center;gap:10px;margin-bottom:8px;display:flex}.option-letter-badge{background:var(--primary-bg);width:28px;height:28px;color:var(--primary);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.option-row input{border:1.5px solid var(--border);border-radius:var(--radius-sm);transition:border-color var(--transition), box-shadow var(--transition);outline:none;flex:1;padding:9px 12px;font-size:14px}.option-row input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #6366f11a}.remove-option-btn{color:var(--text-muted);cursor:pointer;transition:all var(--transition);background:0 0;border:none;border-radius:4px;flex-shrink:0;padding:4px 6px;font-size:16px}.remove-option-btn:hover{color:var(--danger);background:var(--danger-bg)}.add-option-btn{margin-top:4px}.input-type-notice{background:var(--warning-bg);color:#92400e;border-radius:var(--radius-sm);border:1px solid #fcd34d;margin-top:8px;padding:10px 14px;font-size:13px;font-weight:500}.add-question-btn{border-style:dashed;width:100%;margin-bottom:24px;padding:14px;font-size:15px;font-weight:600}.form-actions{justify-content:flex-end;gap:12px;padding:20px 0;display:flex}.view-assessment-page{max-width:1000px}.assessment-info-bar{flex-wrap:wrap;gap:8px;margin-bottom:24px;display:flex}.info-chip{background:var(--bg-white);border:1px solid var(--border);color:var(--text-secondary);border-radius:20px;align-items:center;gap:6px;padding:6px 14px;font-size:13px;font-weight:600;display:inline-flex}.tabs{border-bottom:2px solid var(--border);gap:4px;margin-bottom:24px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;transition:all var(--transition);background:0 0;border:none;border-bottom:3px solid #0000;margin-bottom:-2px;padding:10px 20px;font-size:14px;font-weight:600}.tab-btn:hover{color:var(--primary)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.questions-list{flex-direction:column;gap:16px;display:flex}.view-question-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px}.view-question-header{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;display:flex}.type-badge{border-radius:20px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.type-mcq{background:var(--primary-bg);color:var(--primary)}.type-input{background:var(--warning-bg);color:#92400e}.marks-chip{background:var(--success-bg);color:#065f46;border-radius:20px;padding:3px 10px;font-size:12px;font-weight:700}.view-question-text{color:var(--text-primary);margin-bottom:14px;font-size:15px;font-weight:600}.view-options{flex-direction:column;gap:8px;display:flex}.view-option{border-radius:var(--radius-sm);background:var(--bg);border:1.5px solid var(--border);align-items:center;gap:10px;padding:10px 14px;display:flex}.view-option.correct-option{background:var(--success-bg);border-color:var(--success)}.correct-tick{color:var(--success);margin-left:auto;font-size:12px;font-weight:700}.back-btn-sm{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;margin-bottom:8px;padding:6px 12px;font-size:13px;display:inline-flex}.results-filter{margin-bottom:20px}.results-filter select{border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-white);cursor:pointer;transition:border-color var(--transition);outline:none;padding:9px 14px;font-size:14px}.results-filter select:focus{border-color:var(--border-focus)}.results-filter-bar{border-bottom:1px solid var(--border);background:var(--bg);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px 24px;display:flex}.filter-bar-left,.filter-bar-right{align-items:center;gap:10px;display:flex}.filter-select{border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-white);color:var(--text-primary);cursor:pointer;appearance:auto;min-width:220px;transition:border-color var(--transition), box-shadow var(--transition);outline:none;padding:9px 36px 9px 14px;font-size:14px;font-weight:500}.filter-select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #6366f11f}.btn-export{border-radius:var(--radius-sm);transition:all var(--transition);white-space:nowrap;cursor:pointer;border:1.5px solid #0000;align-items:center;gap:7px;padding:9px 18px;font-size:13px;font-weight:600;display:inline-flex}.btn-export:disabled{opacity:.45;cursor:not-allowed;box-shadow:none!important;transform:none!important}.btn-export-pdf{color:#c2410c;background:#fff7ed;border-color:#fed7aa}.btn-export-pdf:hover:not(:disabled){color:#fff;background:#ea580c;border-color:#ea580c;transform:translateY(-1px);box-shadow:0 4px 12px #ea580c4d}.btn-export-excel{color:#15803d;background:#f0fdf4;border-color:#bbf7d0}.btn-export-excel:hover:not(:disabled){color:#fff;background:#16a34a;border-color:#16a34a;transform:translateY(-1px);box-shadow:0 4px 12px #16a34a4d}.export-alert{margin:12px 24px 0;font-size:13px}.filter-scope-note{background:var(--primary-bg);color:var(--primary-dark);border:1px solid var(--primary-light);border-radius:var(--radius-sm);align-items:center;gap:8px;margin-bottom:20px;padding:8px 16px;font-size:13px;font-weight:500;animation:.25s fadeIn;display:inline-flex}.assessment-stats-bar{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);align-items:center;gap:0;margin-bottom:20px;display:flex;overflow:hidden}.assessment-stats-item{border-right:1px solid var(--border);transition:background var(--transition);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:4px;padding:14px 20px;display:flex}.assessment-stats-item:last-child{border-right:none}.assessment-stats-item:hover{background:var(--bg)}.ast-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px;font-size:12px;font-weight:600}.ast-value{color:var(--primary);font-size:24px;font-weight:800;line-height:1}.ast-warning .ast-value{color:var(--warning)}@keyframes fadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media (width<=768px){.results-filter-bar{flex-direction:column;align-items:stretch;padding:14px 16px}.filter-bar-right{justify-content:flex-start}.filter-select{min-width:100%}.assessment-stats-bar{flex-direction:column}.assessment-stats-item{border-right:none;border-bottom:1px solid var(--border)}.assessment-stats-item:last-child{border-bottom:none}}.modal-overlay{z-index:200;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--bg-white);border-radius:var(--radius-lg);width:100%;max-width:480px;box-shadow:var(--shadow-lg);padding:28px;animation:.2s modal-in}.modal.modal-lg{max-width:720px;max-height:90vh;overflow-y:auto}@keyframes modal-in{0%{opacity:0;transform:scale(.95)translateY(-10px)}to{opacity:1;transform:scale(1)translateY(0)}}.modal h3{margin-bottom:10px;font-size:18px;font-weight:700}.modal p{color:var(--text-secondary);margin-bottom:24px;font-size:14px}.modal-actions{justify-content:flex-end;gap:10px;display:flex}.modal-header{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px;display:flex}.modal-header h3{margin-bottom:4px}.modal-subtitle{color:var(--text-secondary);margin:0;font-size:13px}.modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:4px;font-size:18px}.modal-close:hover{color:var(--text-primary)}.modal-marks-summary{flex-wrap:wrap;gap:12px;margin-bottom:20px;display:flex}.marks-summary-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center;flex:1;min-width:100px;padding:12px}.marks-summary-item span{color:var(--text-secondary);margin-bottom:4px;font-size:12px;display:block}.marks-summary-item strong{color:var(--text-primary);font-size:20px}.marks-summary-item.highlight{background:var(--primary-bg);border-color:var(--primary-light)}.marks-summary-item.highlight strong{color:var(--primary)}.modal-answers{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:20px;overflow:hidden}.answer-row{border-bottom:1px solid var(--border);padding:14px 16px}.answer-row:last-child{border-bottom:none}.input-answer-row{background:var(--warning-bg)}.answer-question{color:var(--text-primary);flex-wrap:wrap;align-items:flex-start;gap:8px;margin-bottom:6px;font-size:14px;font-weight:600;display:flex}.answer-given{color:var(--text-secondary);margin-bottom:6px;font-size:14px}.answer-label{font-weight:600}.no-answer{color:var(--text-muted)}.auto-marks-label{color:var(--success);font-size:12px;font-weight:600}.manual-marks-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}.manual-marks-row label{color:var(--text-secondary);font-size:13px;font-weight:600}.manual-marks-input{border:1.5px solid var(--border);border-radius:var(--radius-sm);width:80px;transition:border-color var(--transition);outline:none;padding:6px 10px;font-size:14px;font-weight:600}.manual-marks-input:focus{border-color:var(--border-focus)}.details-card-footer{border-top:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:16px;margin-top:16px;padding-top:14px;display:flex}.questions-count-display{background:var(--bg);color:var(--text-primary);border:1px solid var(--border);border-radius:8px;align-items:center;gap:8px;padding:8px 16px;font-size:14px;font-weight:500;display:inline-flex}.add-questions-action-bar{flex-wrap:wrap;gap:12px;margin-bottom:24px;display:flex}.modal.bulk-import-modal{flex-direction:column;width:95%;max-width:800px;max-height:90vh;padding:0;display:flex;overflow:hidden}.bulk-import-modal .modal-header{border-bottom:1px solid var(--border);background:var(--bg-white);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-title-wrap{align-items:center;gap:14px;display:flex}.modal-icon{background:var(--primary-bg);border-radius:10px;padding:8px;font-size:28px}.modal-title-wrap h3{color:var(--text-primary);font-size:18px;font-weight:700}.modal-title-wrap p{color:var(--text-secondary);margin-top:2px;font-size:13px}.modal-close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:20px}.modal-close-btn:hover{background:var(--bg);color:var(--text-primary)}.bulk-import-modal .modal-body{flex:1;padding:24px;overflow-y:auto}.import-action-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.import-limit-note{color:var(--text-muted);font-size:12px;font-weight:500}.file-upload-dropzone{border:2px dashed var(--primary-light);background:var(--primary-bg);border-radius:var(--radius);text-align:center;flex-direction:column;align-items:center;gap:8px;padding:36px 24px;transition:all .2s;display:flex}.file-upload-dropzone.drag-active{border-color:var(--primary-dark);background:#e0e7ff}.dropzone-icon{margin-bottom:4px;font-size:42px}.dropzone-text{color:var(--text-primary);font-size:15px}.dropzone-subtext{color:var(--text-secondary);margin-bottom:8px;font-size:13px}.dropzone-btn{cursor:pointer}.selected-filename{color:var(--primary-dark);border:1px solid var(--primary-light);background:#fff;border-radius:20px;margin-top:10px;padding:4px 12px;font-size:13px;font-weight:600}.import-errors-box{background:var(--danger-bg);border-radius:var(--radius-sm);border:1px solid #fca5a5;margin-top:16px;padding:16px 20px}.errors-header{color:#b91c1c;margin-bottom:10px;font-size:14px;font-weight:700}.errors-list{color:#991b1b;margin-bottom:14px;padding-left:20px;font-size:13px}.errors-list li{margin-bottom:4px}.reupload-btn{color:#b91c1c!important;background:#fff!important;border-color:#fca5a5!important}.import-preview-section{flex-direction:column;gap:16px;display:flex}.preview-summary-banner{flex-wrap:wrap;gap:12px;display:flex}.summary-chip{border-radius:20px;padding:6px 14px;font-size:13px;font-weight:700}.summary-chip.success{background:var(--success-bg);color:#065f46}.summary-chip.info{background:var(--primary-bg);color:var(--primary-dark)}.summary-chip.total{color:var(--text-primary);border:1px solid var(--border);background:#f1f5f9}.preview-table-wrapper{border:1px solid var(--border);border-radius:var(--radius-sm);max-height:360px;overflow-y:auto}.preview-table{border-collapse:collapse;width:100%;font-size:13px}.preview-table th{background:var(--bg);text-align:left;color:var(--text-secondary);border-bottom:1px solid var(--border);z-index:10;padding:10px 14px;font-weight:700;position:sticky;top:0}.preview-table td{border-bottom:1px solid var(--border);color:var(--text-primary);padding:10px 14px}.preview-q-text{text-overflow:ellipsis;white-space:nowrap;max-width:260px;overflow:hidden}.type-badge{border-radius:4px;padding:2px 8px;font-size:11px;font-weight:700}.type-badge.mcq{background:var(--primary-bg);color:var(--primary-dark)}.type-badge.input{background:var(--warning-bg);color:#92400e}.correct-ans-preview{color:var(--success);font-weight:600}.bulk-import-modal .modal-footer{border-top:1px solid var(--border);background:#fafafa;margin-top:0;padding:16px 24px}@media (width<=768px){.admin-sidebar{transform:translate(-100%)}.admin-sidebar.open{box-shadow:var(--shadow-lg);transform:translate(0)}.sidebar-close{display:flex}.sidebar-overlay{display:block}.admin-content{margin-left:0}.hamburger{display:flex}.admin-main{padding:20px 16px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}.stat-value{font-size:24px}.assessment-grid,.admin-assessment-grid{grid-template-columns:1fr}.auth-container{padding:36px 24px}.page-header{flex-direction:column;align-items:flex-start}.page-header h2{font-size:20px}.user-email{display:none}.assessment-header{flex-wrap:wrap;gap:8px;padding:12px 16px}.question-builder-header{gap:8px}.marks-inline{margin-top:4px}.form-actions{flex-direction:column-reverse}.form-actions button{width:100%}.modal.modal-lg{padding:20px 16px}.modal-marks-summary{gap:8px}.results-table{min-width:600px}}@media (width<=480px){.stats-grid{grid-template-columns:1fr}.success-card{padding:40px 24px}.success-card h2{font-size:22px}.take-assessment-main,.question-card,.student-main{padding:20px 16px}}