@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";.nav-logo-image{height:45px;width:auto;object-fit:contain;display:inline-block;filter:drop-shadow(0 2px 4px rgba(0,0,0,.15));transition:transform .3s cubic-bezier(.4,0,.2,1);margin-right:.5rem}.nav-logo:hover .nav-logo-image{transform:rotate(-3deg) scale(1.05)}.nav-logo-text{display:inline-block;letter-spacing:-.5px}@media (max-width: 768px){.nav-logo-image{height:40px}}@media (max-width: 480px){.nav-logo-image{height:35px}}.upload-questions-container{max-width:1200px;margin:0 auto;padding:2rem;animation:slideDown .4s ease-out}.upload-header{margin-bottom:2rem}.back-btn{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary);padding:.75rem 1.5rem;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;transition:all .3s ease;margin-bottom:1.5rem;display:inline-flex;align-items:center;gap:.5rem;backdrop-filter:blur(10px)}.back-btn:hover{background:var(--glass-hover);transform:translate(-4px);box-shadow:var(--shadow-lg)}.upload-header h1{font-size:2.5rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.subtitle{color:var(--text-secondary);font-size:1.1rem}.upload-content{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--border-radius-lg);padding:2rem;backdrop-filter:blur(10px);box-shadow:var(--shadow-xl);margin-bottom:2rem}.upload-dropzone{border:2px dashed var(--glass-border);border-radius:var(--border-radius);padding:3rem 2rem;text-align:center;transition:all .3s 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ul{list-style:none;padding:0;margin:0}.instruction-card li{color:var(--text-secondary);padding:.5rem 0 .5rem 1.5rem;position:relative}.instruction-card li:before{content:"\2022";position:absolute;left:0;color:var(--primary-color);font-size:1.5rem;line-height:1.5rem}.instruction-card pre{background:rgba(0,0,0,.3);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:1rem;overflow-x:auto;color:var(--text-secondary);font-size:.85rem;line-height:1.5;margin:0}@media (max-width: 768px){.upload-questions-container{padding:1rem}.upload-header h1{font-size:2rem}.upload-content{padding:1.5rem}.upload-dropzone{padding:2rem 1rem;min-height:250px}.upload-icon{font-size:3rem}.file-preview{padding:1.5rem;gap:1rem}.file-icon{font-size:2.5rem}.upload-actions{flex-direction:column}.upload-actions 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.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 4px 12px #6366f14d}.modal-footer .btn-primary:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.manage-questions{max-width:1200px;margin:0 auto;padding:20px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding:20px;background:white;border-radius:8px;box-shadow:0 2px 8px #0000001a}.page-header h1{margin:0 0 8px;color:#333;font-size:28px}.page-header p{margin:0;color:#666;font-size:14px}.btn-primary{padding:10px 20px;background:#3498db;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;transition:background .3s}.btn-primary:hover{background:#2980b9}.btn-secondary{padding:10px 20px;background:#95a5a6;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:background 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8px #0000001a}.error{color:#e74c3c}.empty-state{text-align:center;padding:60px 20px;background:white;border-radius:8px;box-shadow:0 2px 8px #0000001a}.empty-state p{font-size:18px;color:#666;margin-bottom:20px}.questions-list{display:flex;flex-direction:column;gap:20px}.question-card{background:white;border-radius:8px;padding:24px;box-shadow:0 2px 8px #0000001a;transition:box-shadow .3s}.question-card:hover{box-shadow:0 4px 16px #00000026}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid #f0f0f0}.question-info{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.question-number{font-size:16px;font-weight:700;color:#2c5aa0}.subject-badge,.topic-badge{padding:4px 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.2s}.btn-save-chapter{color:#28a745}.btn-save-chapter:hover{background:#d4edda}.btn-cancel-chapter{color:#dc3545}.btn-cancel-chapter:hover{background:#f8d7da}.marks-edit,.marks-edit-inline{display:flex;align-items:center;gap:6px}.marks-input{padding:4px 8px;border:2px solid #2c5aa0;border-radius:4px;font-size:13px;font-weight:600;width:60px;outline:none}.marks-input:focus{border-color:#3498db;box-shadow:0 0 0 2px #2c5aa01a}.marks-label{font-size:13px;color:#666;font-weight:600}.btn-edit-marks{background:transparent;border:none;padding:2px 6px;cursor:pointer;font-size:14px;opacity:.6;transition:opacity .2s}.btn-edit-marks:hover{opacity:1}.btn-save-marks,.btn-cancel-marks{background:transparent;border:none;padding:4px 8px;cursor:pointer;font-size:14px;font-weight:700;border-radius:4px;transition:all .2s}.btn-save-marks{color:#28a745}.btn-save-marks:hover{background:#d4edda}.btn-cancel-marks{color:#dc3545}.btn-cancel-marks:hover{background:#f8d7da}.btn-batch-update{padding:.75rem 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h3{color:var(--text-primary);margin-bottom:1.5rem;font-size:1.4rem;font-weight:700}.form-hint{color:var(--text-secondary);font-size:.9rem;margin-bottom:1.25rem}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.subject-counts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem}.total-questions{background:linear-gradient(135deg,rgba(99,102,241,.1) 0%,rgba(139,92,246,.1) 100%);padding:1.25rem;border-radius:var(--radius-lg);margin-top:1.5rem;text-align:center;font-size:1.2rem;font-weight:700;color:var(--primary-color);border:2px solid rgba(99,102,241,.2)}.form-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:2.5rem;padding-top:2rem;border-top:2px solid var(--bg-tertiary)}.error-message{background:linear-gradient(135deg,#fee2e2 0%,#fecaca 100%);border-left:4px solid var(--error);color:#991b1b;padding:1.25rem 1.5rem;border-radius:var(--radius-md);margin-bottom:1.5rem;box-shadow:0 4px 12px #ef444433;animation:slideDown .3s ease}.success-message{background:linear-gradient(135deg,#d1fae5 0%,#a7f3d0 100%);border-left:4px solid var(--success);color:#065f46;padding:1.25rem 1.5rem;border-radius:var(--radius-md);margin-bottom:1.5rem;box-shadow:0 4px 12px #10b98133;animation:slideDown .3s ease}.loading{text-align:center;padding:3rem;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:1.3rem;font-weight:700;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@media (max-width: 768px){.nav-container{flex-direction:column;gap:1rem;padding:1rem}.nav-menu{flex-direction:column;width:100%}.nav-link{width:100%;text-align:center}.user-menu{flex-direction:column;padding-left:0;padding-top:1rem;border-left:none;border-top:1px solid var(--border-color);width:100%}.dashboard-grid,.exam-grid{grid-template-columns:1fr}.question-actions{flex-direction:column}.form-row,.subject-counts{grid-template-columns:1fr}.auth-card{padding:2rem}.main-content{padding:1rem}.dashboard-header h1{font-size:2rem}.stat-value{font-size:2.5rem}}@media (max-width: 480px){.card-icon{font-size:2.5rem}.question-number,.exam-code{font-size:.8rem;padding:.4rem .9rem}.question-text{font-size:1.1rem}}.institute-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:linear-gradient(135deg,rgba(99,102,241,.1) 0%,rgba(139,92,246,.1) 100%);border:1px solid rgba(99,102,241,.2);border-radius:var(--radius-md);margin-top:.75rem;font-size:.95rem;transition:var(--transition)}.institute-badge:hover{background:linear-gradient(135deg,rgba(99,102,241,.15) 0%,rgba(139,92,246,.15) 100%);border-color:#6366f14d;transform:translateY(-1px)}.institute-badge .badge-icon{font-size:1.2rem}.institute-badge .badge-name{font-weight:600;color:var(--primary-color)}.institute-badge .badge-code{font-weight:400;color:var(--text-secondary);font-size:.875rem;margin-left:.25rem}