*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563eb;--primary-dark: #1d4ed8;--secondary-color: #64748b;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--background-color: #f8fafc;--surface-color: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px 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)}[data-theme=dark]{--background-color: #0f172a;--surface-color: #1e293b;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--border-color: #334155}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-color);color:var(--text-primary);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border:none;border-radius:.375rem;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none;gap:.5rem}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-secondary:hover{background-color:#475569}.btn-outline{background-color:transparent;color:var(--primary-color);border:1px solid var(--primary-color)}.btn-outline:hover{background-color:var(--primary-color);color:#fff}.card{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color)}.card-header{padding:1.5rem;border-bottom:1px solid var(--border-color)}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-primary)}.form-input{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.375rem;font-size:1rem;background-color:var(--surface-color);color:var(--text-primary);transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-select{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:.375rem;font-size:1rem;background-color:var(--surface-color);color:var(--text-primary);cursor:pointer}.grid{display:grid;gap:1.5rem}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}@media (max-width: 768px){.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:repeat(1,minmax(0,1fr))}}@media (min-width: 768px){.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.md\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.md\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}}.text-center{text-align:center}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.text-2xl{font-size:1.5rem}.text-3xl{font-size:1.875rem}.font-bold{font-weight:700}.font-semibold{font-weight:600}.text-primary{color:var(--primary-color)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--success-color)}.text-warning{color:var(--warning-color)}.text-danger{color:var(--danger-color)}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.p-4{padding:1rem}.p-6{padding:1.5rem}.rounded{border-radius:.375rem}.shadow{box-shadow:var(--shadow)}.shadow-lg{box-shadow:var(--shadow-lg)}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:.5rem}.gap-4{gap:1rem}.w-full{width:100%}.h-full{height:100%}.min-h-screen{min-height:100vh}.hidden{display:none}@media (min-width: 768px){.md\:block{display:block}.md\:hidden{display:none}}.notification{position:fixed;top:1rem;right:1rem;padding:1rem;border-radius:.5rem;box-shadow:var(--shadow-lg);z-index:1000;max-width:300px}.notification-success{background-color:var(--success-color);color:#fff}.notification-error{background-color:var(--danger-color);color:#fff}.notification-warning{background-color:var(--warning-color);color:#fff}.progress-bar{width:100%;height:.5rem;background-color:var(--border-color);border-radius:.25rem;overflow:hidden}.progress-fill{height:100%;background-color:var(--primary-color);transition:width .3s ease}.badge{display:inline-flex;align-items:center;padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500}.badge-success{background-color:#dcfce7;color:#166534}.badge-warning{background-color:#fef3c7;color:#92400e}.badge-danger{background-color:#fee2e2;color:#991b1b}.badge-info{background-color:#dbeafe;color:#1e40af}.table{width:100%;border-collapse:collapse;background-color:var(--surface-color);border-radius:.5rem;overflow:hidden;box-shadow:var(--shadow)}.table th,.table td{padding:.75rem;text-align:left;border-bottom:1px solid var(--border-color)}.table th{background-color:var(--background-color);font-weight:600;color:var(--text-primary)}.table tbody tr:hover{background-color:var(--background-color)}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow-lg);max-width:500px;width:100%;max-height:90vh;overflow-y:auto}.loading-spinner{display:inline-block;width:1rem;height:1rem;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.navbar{position:fixed;top:0;left:0;right:0;background-color:var(--surface-color);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow);z-index:100;height:4rem}.navbar-container{max-width:1200px;margin:0 auto;padding:0 1rem;height:100%;display:flex;align-items:center;justify-content:space-between}.navbar-brand{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.brand-icon{font-size:1.75rem}.navbar-menu{display:flex;align-items:center;gap:.5rem}.navbar-item{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:.375rem;color:var(--text-secondary);text-decoration:none;font-weight:500;transition:all .2s}.navbar-item:hover{background-color:var(--background-color);color:var(--text-primary)}.navbar-item.active{background-color:var(--primary-color);color:#fff}.navbar-icon{font-size:1rem}.navbar-actions{display:flex;align-items:center;gap:1rem}.theme-toggle{background:none;border:none;font-size:1.25rem;cursor:pointer;padding:.5rem;border-radius:.375rem;transition:background-color .2s}.theme-toggle:hover{background-color:var(--background-color)}.user-menu{display:flex;align-items:center;gap:1rem}.user-info{display:flex;align-items:center;gap:.75rem}.user-avatar{width:2rem;height:2rem;border-radius:50%;background-color:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.875rem}.user-details{display:flex;flex-direction:column;align-items:flex-start}.user-name{font-weight:600;font-size:.875rem;color:var(--text-primary)}.user-role{font-size:.75rem;color:var(--text-secondary);text-transform:capitalize}.logout-btn{background-color:var(--danger-color);color:#fff;border:none;padding:.5rem 1rem;border-radius:.375rem;font-size:.875rem;font-weight:500;cursor:pointer;transition:background-color .2s}.logout-btn:hover{background-color:#dc2626}.mobile-menu-toggle{display:none;flex-direction:column;gap:.25rem;background:none;border:none;cursor:pointer;padding:.5rem}.mobile-menu-toggle span{width:1.5rem;height:2px;background-color:var(--text-primary);transition:all .3s}@media (max-width: 768px){.navbar{height:3.5rem}.navbar-brand{font-size:1.25rem}.brand-icon{font-size:1.5rem}.navbar-menu{position:absolute;top:100%;left:0;right:0;background-color:var(--surface-color);border-bottom:1px solid var(--border-color);flex-direction:column;padding:1rem;gap:.5rem;transform:translateY(-100%);opacity:0;visibility:hidden;transition:all .3s}.navbar-menu.active{transform:translateY(0);opacity:1;visibility:visible}.navbar-item{width:100%;justify-content:flex-start}.user-details{display:none}.mobile-menu-toggle{display:flex}.mobile-menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(.375rem,.375rem)}.mobile-menu-toggle.active span:nth-child(2){opacity:0}.mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(.375rem,-.375rem)}}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;background:linear-gradient(135deg,var(--primary-color) 0%,#1e40af 100%)}.login-card{background-color:var(--surface-color);border-radius:1rem;box-shadow:var(--shadow-lg);padding:2rem;width:100%;max-width:400px}.login-header{text-align:center;margin-bottom:2rem}.login-logo{display:flex;align-items:center;justify-content:center;gap:.75rem;margin-bottom:.5rem}.logo-icon{font-size:2.5rem}.login-logo h1{font-size:2rem;font-weight:700;color:var(--primary-color);margin:0}.login-subtitle{color:var(--text-secondary);font-size:.875rem;margin:0}.login-form{margin-bottom:1.5rem}.error-message{background-color:#fee2e2;color:#991b1b;padding:.75rem;border-radius:.375rem;font-size:.875rem;margin-bottom:1rem;border:1px solid #fecaca}.demo-credentials{border-top:1px solid var(--border-color);padding-top:1.5rem;text-align:center}.demo-title{font-size:.875rem;color:var(--text-secondary);margin-bottom:1rem}.demo-buttons{display:flex;gap:.5rem;justify-content:center}.demo-buttons .btn{font-size:.75rem;padding:.5rem .75rem}@media (max-width: 480px){.login-card{padding:1.5rem}.demo-buttons{flex-direction:column}}.dashboard-container{padding:2rem 0;min-height:calc(100vh - 4rem)}.dashboard-header{margin-bottom:2rem}.dashboard-header h1{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.dashboard-subtitle{color:var(--text-secondary);font-size:1rem}.dashboard-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-value{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:.25rem}.stat-label{font-size:.75rem;color:var(--text-secondary)}.stat-change{font-size:.75rem;font-weight:500}.stat-change.positive{color:var(--success-color)}.stat-change.negative{color:var(--danger-color)}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem}.dashboard-section{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden}.section-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.section-header h2{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.attendance-list,.results-list,.events-list,.activities-list{padding:1rem}.attendance-item,.result-item,.event-item,.activity-item{display:flex;align-items:center;justify-content:space-between;padding:1rem;border-radius:.375rem;margin-bottom:.5rem;transition:background-color .2s}.attendance-item:hover,.result-item:hover,.event-item:hover,.activity-item:hover{background-color:var(--background-color)}.attendance-item:last-child,.result-item:last-child,.event-item:last-child,.activity-item:last-child{margin-bottom:0}.attendance-info h4,.result-info h4{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.attendance-info p,.result-date{font-size:.75rem;color:var(--text-secondary)}.attendance-progress{display:flex;align-items:center;gap:.75rem;min-width:120px}.progress-bar{width:60px;height:.5rem;background-color:var(--border-color);border-radius:.25rem;overflow:hidden}.progress-fill.excellent{background-color:var(--success-color)}.progress-fill.good{background-color:#22c55e}.progress-fill.warning{background-color:var(--warning-color)}.progress-fill.danger{background-color:var(--danger-color)}.attendance-percentage{font-size:.75rem;font-weight:600}.attendance-percentage.excellent{color:var(--success-color)}.attendance-percentage.good{color:#22c55e}.attendance-percentage.warning{color:var(--warning-color)}.attendance-percentage.danger{color:var(--danger-color)}.percentage.good{background-color:#dcfce7;color:#166534}.percentage.average{background-color:#fef3c7;color:#92400e}.percentage.poor{background-color:#fee2e2;color:#991b1b}.event-item{align-items:flex-start}.event-type{width:.75rem;height:.75rem;border-radius:50%;margin-top:.25rem;margin-right:.75rem}.event-type.exam{background-color:var(--danger-color)}.event-type.event{background-color:var(--primary-color)}.event-type.assignment{background-color:var(--warning-color)}.event-info h4{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.event-date{font-size:.75rem;color:var(--text-secondary)}.quick-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;padding:1.5rem}.quick-action-card{display:flex;flex-direction:column;align-items:center;padding:1.5rem;border-radius:.5rem;text-decoration:none;transition:transform .2s;border:1px solid var(--border-color)}.quick-action-card:hover{transform:translateY(-2px)}.quick-action-card.primary{background-color:#dbeafe;color:#1e40af}.quick-action-card.success{background-color:#dcfce7;color:#166534}.quick-action-card.warning{background-color:#fef3c7;color:#92400e}.quick-action-card.info{background-color:#e0f2fe;color:#0277bd}.action-icon{font-size:2rem;margin-bottom:.5rem}.quick-action-card h3{font-size:.875rem;font-weight:600;text-align:center}.activity-type{width:.75rem;height:.75rem;border-radius:50%;margin-right:.75rem}.activity-type.attendance{background-color:var(--primary-color)}.activity-type.results{background-color:var(--success-color)}.activity-type.event{background-color:var(--warning-color)}.activity-type.materials{background-color:#8b5cf6}.activity-action{font-size:.875rem;color:var(--text-primary);margin-bottom:.25rem}.activity-time{font-size:.75rem;color:var(--text-secondary)}.system-overview{padding:1.5rem}.overview-item{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;border-bottom:1px solid var(--border-color)}.overview-item:last-child{border-bottom:none}.overview-item h4{font-size:.875rem;font-weight:600;color:var(--text-primary)}.status-indicator{padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500}.status-indicator.online{background-color:#dcfce7;color:#166534}.backup-time{font-size:.75rem;color:var(--text-secondary)}.storage-bar{width:100px;height:.5rem;background-color:var(--border-color);border-radius:.25rem;overflow:hidden;margin-right:.5rem}.storage-fill{height:100%;background-color:var(--primary-color);transition:width .3s ease}.storage-text{font-size:.75rem;color:var(--text-secondary)}@media (max-width: 768px){.dashboard-container{padding:1rem 0}.dashboard-header h1{font-size:1.5rem}.dashboard-stats,.dashboard-grid{grid-template-columns:1fr}.quick-actions{grid-template-columns:repeat(2,1fr)}.attendance-progress{min-width:100px}.progress-bar{width:50px}}.attendance-container{padding:2rem 0;min-height:calc(100vh - 4rem)}.attendance-summary{margin-bottom:2rem}.attendance-filters{margin-bottom:2rem}.attendance-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem}.attendance-card{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden}.attendance-badge{padding:.5rem 1rem;border-radius:.375rem;font-weight:600;font-size:.875rem}.attendance-badge.excellent{background-color:#dcfce7;color:#166534}.attendance-badge.good{background-color:#dbeafe;color:#1e40af}.attendance-badge.warning{background-color:#fef3c7;color:#92400e}.attendance-badge.danger{background-color:#fee2e2;color:#991b1b}.attendance-stats{margin-bottom:1.5rem}.stat-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--border-color)}.stat-row:last-child{border-bottom:none}.stat-row span:first-child{color:var(--text-secondary);font-size:.875rem}.stat-row .stat-value{font-weight:600;color:var(--text-primary)}.stat-row .stat-value.positive{color:var(--success-color)}.stat-row .stat-value.negative{color:var(--danger-color)}.progress-section{margin-bottom:1.5rem}.progress-bar{width:100%;height:.75rem;background-color:var(--border-color);border-radius:.375rem;overflow:hidden;position:relative;margin-bottom:.5rem}.progress-fill{height:100%;transition:width .3s ease}.progress-labels{display:flex;justify-content:space-between;align-items:center;font-size:.75rem;color:var(--text-secondary);position:relative}.required-mark{position:absolute;font-weight:600;color:var(--warning-color);transform:translate(-50%)}.recent-attendance h4{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.attendance-history{display:flex;flex-direction:column;gap:.5rem}.attendance-record{display:flex;justify-content:space-between;align-items:center;padding:.5rem;background-color:var(--background-color);border-radius:.375rem}.record-date{font-size:.875rem;color:var(--text-secondary)}.record-status{font-weight:600;font-size:1rem}.record-status.present{color:var(--success-color)}.record-status.absent{color:var(--danger-color)}.warning-message{display:flex;align-items:flex-start;gap:.75rem;padding:1rem;background-color:#fef3c7;border:1px solid #fbbf24;border-radius:.375rem;margin-top:1rem}.warning-icon{font-size:1.25rem}.warning-message p{font-size:.875rem;color:#92400e;margin:0}.attendance-controls{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:end;margin-bottom:2rem;padding:1.5rem;background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color)}.control-actions{display:flex;gap:.5rem}.attendance-stats-admin{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:2rem}.attendance-stats-admin .stat-card{background-color:var(--surface-color);border-radius:.5rem;padding:1.5rem;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border-color)}.attendance-stats-admin .stat-card h3{font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.5rem}.stat-number.present{color:var(--success-color)}.stat-number.absent{color:var(--danger-color)}.stat-number.total{color:var(--primary-color)}.stat-number.percentage{color:var(--text-primary)}.bulk-buttons{display:flex;gap:.5rem}.attendance-table-container{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden}.attendance-table{width:100%;border-collapse:collapse}.attendance-table th,.attendance-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}.attendance-table th{background-color:var(--background-color);font-weight:600;color:var(--text-primary)}.attendance-table tbody tr:hover{background-color:var(--background-color)}.status-badge.present{background-color:#dcfce7;color:#166534}.status-badge.absent{background-color:#fee2e2;color:#991b1b}@media (max-width: 768px){.attendance-container{padding:1rem 0}.attendance-grid{grid-template-columns:1fr}.attendance-controls{flex-direction:column;align-items:stretch}.control-group{min-width:auto}.control-actions{justify-content:center}.attendance-stats-admin{grid-template-columns:repeat(2,1fr)}.bulk-buttons{flex-direction:column}.attendance-table-container{overflow-x:auto}.attendance-table{min-width:600px}}.results-container{padding:2rem 0;min-height:calc(100vh - 4rem)}.results-summary{margin-bottom:2rem}.summary-card{background-color:var(--surface-color);border-radius:.5rem;padding:1.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color)}.summary-card h3{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.summary-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1.5rem}.stat{text-align:center}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--primary-color);margin-bottom:.25rem}.stat-label{font-size:.875rem;color:var(--text-secondary)}.results-filters{display:flex;gap:1.5rem;margin-bottom:2rem;flex-wrap:wrap}.filter-group{display:flex;align-items:center;gap:1rem}.filter-group label{font-weight:500;color:var(--text-primary)}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem}.results-card{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden}.card-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.subject-info h3{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.subject-code{font-size:.875rem;color:var(--text-secondary)}.grade-badge{padding:.5rem 1rem;border-radius:.375rem;font-weight:700;font-size:1rem}.grade-badge.excellent{background-color:#dcfce7;color:#166534}.grade-badge.good{background-color:#dbeafe;color:#1e40af}.grade-badge.average{background-color:#fef3c7;color:#92400e}.grade-badge.below-average{background-color:#fed7aa;color:#9a3412}.grade-badge.poor{background-color:#fee2e2;color:#991b1b}.card-body{padding:1.5rem}.subject-score{margin-bottom:1.5rem;text-align:center}.subject-score h4{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.subject-score p{color:var(--text-secondary);font-size:.875rem}.results-list{margin-bottom:1.5rem}.result-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-radius:.375rem;margin-bottom:.5rem;background-color:var(--background-color);transition:background-color .2s}.result-item:hover{background-color:var(--border-color)}.result-item:last-child{margin-bottom:0}.result-info h5{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.result-date,.result-weightage{font-size:.75rem;color:var(--text-secondary);display:block}.result-score{display:flex;flex-direction:column;align-items:flex-end;gap:.25rem}.score{font-size:.875rem;font-weight:600;color:var(--text-primary)}.percentage{font-size:.75rem;font-weight:500;padding:.125rem .5rem;border-radius:.25rem}.progress-info{border-top:1px solid var(--border-color);padding-top:1rem}.progress-info h5{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.progress-bar{width:100%;height:.5rem;background-color:var(--border-color);border-radius:.25rem;overflow:hidden;margin-bottom:.5rem}.progress-text{font-size:.75rem;color:var(--text-secondary);text-align:center}.results-controls{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:end;margin-bottom:2rem;padding:1.5rem;background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color)}.control-group{display:flex;flex-direction:column;gap:.5rem;min-width:200px}.control-actions{display:flex;gap:.5rem;flex-wrap:wrap}.results-stats-admin{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:2rem}.results-stats-admin .stat-card{background-color:var(--surface-color);border-radius:.5rem;padding:1.5rem;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border-color)}.results-stats-admin .stat-card h3{font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.5rem}.stat-number{font-size:2rem;font-weight:700}.stat-number.average{color:var(--primary-color)}.stat-number.highest{color:var(--success-color)}.stat-number.lowest{color:var(--warning-color)}.stat-number.published{color:var(--text-primary)}.stat-max{font-size:.875rem;color:var(--text-secondary);margin-left:.25rem}.bulk-actions{margin-bottom:2rem;padding:1.5rem;background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color)}.bulk-actions h3{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.bulk-buttons{display:flex;gap:.5rem;flex-wrap:wrap}.results-table-container{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden}.results-table{width:100%;border-collapse:collapse}.results-table th,.results-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}.results-table th{background-color:var(--background-color);font-weight:600;color:var(--text-primary)}.results-table tbody tr:hover{background-color:var(--background-color)}.score-input{width:80px;padding:.25rem .5rem;border:1px solid var(--border-color);border-radius:.25rem;font-size:.875rem}.percentage-badge{padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500}.percentage-badge.good{background-color:#dcfce7;color:#166534}.percentage-badge.average{background-color:#fef3c7;color:#92400e}.percentage-badge.poor{background-color:#fee2e2;color:#991b1b}.status-badge{padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500}.status-badge.published{background-color:#dcfce7;color:#166534}.status-badge.draft{background-color:#fef3c7;color:#92400e}.status-controls{display:flex;gap:.5rem}.status-btn{padding:.25rem .75rem;border:1px solid var(--border-color);border-radius:.375rem;background-color:var(--surface-color);color:var(--text-secondary);font-size:.75rem;cursor:pointer;transition:all .2s}.status-btn:hover{background-color:var(--background-color)}.status-btn.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.modal-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-secondary);padding:.25rem}.modal-body{padding:1.5rem}.upload-area{border:2px dashed var(--border-color);border-radius:.5rem;padding:2rem;text-align:center;margin-bottom:1.5rem;transition:border-color .2s}.upload-area:hover{border-color:var(--primary-color)}.csv-format{background-color:var(--background-color);padding:1rem;border-radius:.375rem}.csv-format h4{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.csv-format code{display:block;font-family:Courier New,monospace;font-size:.75rem;color:var(--text-secondary);line-height:1.4}@media (max-width: 768px){.results-container{padding:1rem 0}.results-grid{grid-template-columns:1fr}.results-filters{flex-direction:column;gap:1rem}.results-controls{flex-direction:column;align-items:stretch}.control-group{min-width:auto}.control-actions{justify-content:center}.results-stats-admin{grid-template-columns:repeat(2,1fr)}.bulk-buttons{flex-direction:column}.results-table-container{overflow-x:auto}.results-table{min-width:700px}}.calendar-container{padding:2rem 0;min-height:calc(100vh - 4rem)}.calendar-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.calendar-navigation{display:flex;align-items:center;gap:1rem}.nav-btn{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:.375rem;padding:.5rem .75rem;font-size:1.25rem;cursor:pointer;transition:all .2s}.nav-btn:hover{background-color:var(--background-color)}.current-month{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0;min-width:200px;text-align:center}.calendar-filters{display:flex;align-items:center;gap:1rem}.calendar-layout{display:grid;grid-template-columns:1fr 350px;gap:2rem}.calendar-grid-container{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden}.calendar-header{display:grid;grid-template-columns:repeat(7,1fr);background-color:var(--background-color);border-bottom:1px solid var(--border-color)}.calendar-header-day{padding:1rem;text-align:center;font-weight:600;color:var(--text-primary);border-right:1px solid var(--border-color)}.calendar-header-day:last-child{border-right:none}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr)}.calendar-day{min-height:100px;padding:.5rem;border-right:1px solid var(--border-color);border-bottom:1px solid var(--border-color);cursor:pointer;transition:background-color .2s;position:relative}.calendar-day:hover{background-color:var(--background-color)}.calendar-day:nth-child(7n){border-right:none}.calendar-day.empty{cursor:default}.calendar-day.today{background-color:#dbeafe}.calendar-day.selected{background-color:var(--primary-color);color:#fff}.calendar-day.has-events .day-number{font-weight:600}.day-number{display:block;font-size:.875rem;margin-bottom:.25rem}.event-indicators{display:flex;flex-wrap:wrap;gap:.25rem;align-items:center}.event-dot{width:.5rem;height:.5rem;border-radius:50%}.event-dot.exam{background-color:#ef4444}.event-dot.assignment{background-color:#f59e0b}.event-dot.class{background-color:#2563eb}.event-dot.event{background-color:#10b981}.more-events{font-size:.625rem;color:var(--text-secondary);font-weight:500}.events-sidebar{display:flex;flex-direction:column;gap:2rem}.events-section{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);padding:1.5rem}.events-section h3{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.events-list{display:flex;flex-direction:column;gap:1rem;max-height:500px;overflow-y:auto}.event-card{padding:1rem;border-radius:.375rem;border-left:4px solid;background-color:var(--background-color)}.event-card.exam{border-left-color:#ef4444}.event-card.assignment{border-left-color:#f59e0b}.event-card.class{border-left-color:#2563eb}.event-card.event{border-left-color:#10b981}.event-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.75rem}.event-header h4{font-size:.875rem;font-weight:600;color:var(--text-primary);margin:0;flex:1}.event-type-badge{padding:.125rem .5rem;border-radius:9999px;font-size:.625rem;font-weight:500;text-transform:uppercase;margin-left:.5rem}.event-type-badge.exam{background-color:#fee2e2;color:#991b1b}.event-type-badge.assignment{background-color:#fef3c7;color:#92400e}.event-type-badge.class{background-color:#dbeafe;color:#1e40af}.event-type-badge.event{background-color:#dcfce7;color:#166534}.event-details{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.5rem}.event-detail{display:flex;align-items:center;gap:.5rem;font-size:.75rem;color:var(--text-secondary)}.event-description{font-size:.75rem;color:var(--text-secondary);margin:0;line-height:1.4}.no-events{text-align:center;padding:2rem;color:var(--text-secondary)}.legend{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);padding:1.5rem}.legend h4{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.legend-items{display:flex;flex-direction:column;gap:.5rem}.legend-item{display:flex;align-items:center;gap:.75rem}.legend-color{width:1rem;height:1rem;border-radius:50%}.event-form{display:flex;flex-direction:column;gap:1rem}@media (max-width: 1024px){.calendar-layout{grid-template-columns:1fr}.events-sidebar{order:-1}}@media (max-width: 768px){.calendar-container{padding:1rem 0}.calendar-controls{flex-direction:column;align-items:stretch}.calendar-navigation{justify-content:center}.current-month{font-size:1.25rem;min-width:auto}.calendar-day{min-height:80px;padding:.25rem}.day-number{font-size:.75rem}.event-indicators{gap:.125rem}.event-dot{width:.375rem;height:.375rem}.more-events{font-size:.5rem}.form-row{grid-template-columns:1fr}}.materials-container{padding:2rem 0;min-height:calc(100vh - 4rem)}.materials-controls{display:flex;justify-content:space-between;align-items:end;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.filters{display:flex;gap:1.5rem;flex-wrap:wrap}.filter-group{display:flex;align-items:center;gap:.5rem}.filter-group label{font-weight:500;color:var(--text-primary);white-space:nowrap}.materials-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background-color:var(--surface-color);border-radius:.5rem;padding:1.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);display:flex;align-items:center;gap:1rem}.stat-icon{font-size:2rem;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;background-color:var(--background-color);border-radius:.5rem}.stat-content h3{font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.25rem}.stat-value{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0}.materials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.material-card{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden;transition:transform .2s}.material-card:hover{transform:translateY(-2px)}.material-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;align-items:flex-start;gap:1rem}.material-icon{font-size:2rem;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;background-color:var(--background-color);border-radius:.5rem;flex-shrink:0}.material-info{flex:1}.material-info h3{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem;line-height:1.4}.material-meta{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}.subject{font-size:.875rem;color:var(--text-secondary)}.category-badge{padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500}.category-badge.primary{background-color:#dbeafe;color:#1e40af}.category-badge.success{background-color:#dcfce7;color:#166534}.category-badge.warning{background-color:#fef3c7;color:#92400e}.category-badge.danger{background-color:#fee2e2;color:#991b1b}.category-badge.info{background-color:#e0f2fe;color:#0277bd}.category-badge.secondary{background-color:#f1f5f9;color:#475569}.material-body{padding:1.5rem}.material-description{font-size:.875rem;color:var(--text-secondary);line-height:1.5;margin-bottom:1rem}.material-details{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem}.detail-item{display:flex;align-items:center;gap:.5rem;font-size:.75rem;color:var(--text-secondary)}.detail-icon{font-size:.875rem}.material-actions{padding:1rem 1.5rem;border-top:1px solid var(--border-color);display:flex;gap:.5rem;justify-content:flex-end}.upload-modal{max-width:600px}.upload-form{display:flex;flex-direction:column;gap:1rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.file-upload-area{border:2px dashed var(--border-color);border-radius:.5rem;padding:2rem;text-align:center;transition:border-color .2s}.file-upload-area:hover{border-color:var(--primary-color)}.upload-icon{font-size:3rem;margin-bottom:1rem}.file-upload-area p{color:var(--text-secondary);margin-bottom:1rem}.file-input{display:none}.form-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-top:1rem}.preview-modal{max-width:800px;max-height:90vh}.preview-container{height:500px;background-color:var(--background-color);border-radius:.375rem;display:flex;align-items:center;justify-content:center;margin-bottom:1rem}.preview-placeholder{text-align:center;color:var(--text-secondary)}.preview-icon{font-size:4rem;margin-bottom:1rem}.preview-placeholder h4{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.preview-note{font-size:.875rem;font-style:italic;margin-top:1rem}.preview-actions{display:flex;justify-content:center}@media (max-width: 768px){.materials-container{padding:1rem 0}.materials-controls{flex-direction:column;align-items:stretch}.filters{flex-direction:column;gap:1rem}.materials-stats{grid-template-columns:repeat(2,1fr)}.materials-grid,.material-details,.form-row{grid-template-columns:1fr}.material-actions{flex-direction:column}}.timetable-container{padding:2rem 0;min-height:calc(100vh - 4rem)}.page-header{margin-bottom:2rem}.page-header h1{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.page-subtitle{color:var(--text-secondary);font-size:1rem}.timetable-controls{display:flex;gap:2rem;margin-bottom:2rem;flex-wrap:wrap;align-items:end}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{font-weight:500;color:var(--text-primary);font-size:.875rem}.timetable-grid{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);overflow:hidden;margin-bottom:2rem}.timetable-header{display:grid;grid-template-columns:120px repeat(6,1fr);background-color:var(--background-color);border-bottom:2px solid var(--border-color)}.time-column-header,.day-header{padding:1rem;font-weight:600;color:var(--text-primary);text-align:center;border-right:1px solid var(--border-color)}.time-column-header{background-color:var(--surface-color)}.day-header:last-child{border-right:none}.timetable-body{display:flex;flex-direction:column}.timetable-row{display:grid;grid-template-columns:120px repeat(6,1fr);border-bottom:1px solid var(--border-color)}.timetable-row:last-child{border-bottom:none}.time-slot{padding:1rem;font-weight:500;color:var(--text-secondary);background-color:var(--background-color);border-right:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;font-size:.875rem}.timetable-cell{padding:.5rem;border-right:1px solid var(--border-color);min-height:80px;display:flex;align-items:center;justify-content:center}.timetable-cell:last-child{border-right:none}.class-card{width:100%;padding:.75rem;border-radius:.375rem;text-align:center;font-size:.75rem;line-height:1.3}.class-card.lecture{background-color:#dbeafe;color:#1e40af;border:1px solid #93c5fd}.class-card.lab{background-color:#dcfce7;color:#166534;border:1px solid #86efac}.class-card.tutorial{background-color:#fef3c7;color:#92400e;border:1px solid #fcd34d}.class-card.break{background-color:#f1f5f9;color:#475569;border:1px solid #cbd5e1}.class-card.free{background-color:#fafafa;color:#737373;border:1px solid #e5e5e5;opacity:.7}.class-subject{font-weight:600;margin-bottom:.25rem}.class-code{font-size:.625rem;opacity:.8;margin-bottom:.25rem}.class-teacher{font-size:.625rem;opacity:.9;margin-bottom:.25rem}.class-room{font-size:.625rem;opacity:.8}.daily-view{margin-bottom:2rem}.day-selector{display:flex;gap:.5rem;margin-bottom:1.5rem;flex-wrap:wrap}.day-btn{padding:.5rem 1rem;border:1px solid var(--border-color);border-radius:.375rem;background-color:var(--surface-color);color:var(--text-secondary);cursor:pointer;transition:all .2s;font-size:.875rem}.day-btn:hover{background-color:var(--background-color)}.day-btn.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.daily-schedule{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);padding:1.5rem}.daily-schedule h3{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:1.5rem}.daily-classes{display:flex;flex-direction:column;gap:1rem}.daily-class-card{display:flex;align-items:center;gap:1rem;padding:1rem;border-radius:.375rem;border-left:4px solid}.daily-class-card.lecture{background-color:#dbeafe;border-left-color:#2563eb}.daily-class-card.lab{background-color:#dcfce7;border-left-color:#16a34a}.daily-class-card.tutorial{background-color:#fef3c7;border-left-color:#d97706}.daily-class-card.break{background-color:#f1f5f9;border-left-color:#64748b}.daily-class-card.free{background-color:#fafafa;border-left-color:#a3a3a3;opacity:.7}.daily-time{font-weight:600;color:var(--text-primary);min-width:120px;font-size:.875rem}.daily-class-info{flex:1}.daily-class-info h4{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.daily-code,.daily-teacher,.daily-room{font-size:.75rem;color:var(--text-secondary);margin:.125rem 0}.no-classes{text-align:center;padding:2rem;color:var(--text-secondary)}.no-classes p{font-size:1rem;margin:0}.timetable-legend{background-color:var(--surface-color);border-radius:.5rem;box-shadow:var(--shadow);border:1px solid var(--border-color);padding:1.5rem;margin-bottom:2rem}.timetable-legend h4{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem}.legend-items{display:flex;gap:1.5rem;flex-wrap:wrap}.legend-item{display:flex;align-items:center;gap:.5rem}.legend-color{width:1rem;height:1rem;border-radius:.25rem;border:1px solid}.legend-color.lecture{background-color:#dbeafe;border-color:#93c5fd}.legend-color.lab{background-color:#dcfce7;border-color:#86efac}.legend-color.tutorial{background-color:#fef3c7;border-color:#fcd34d}.legend-color.break{background-color:#f1f5f9;border-color:#cbd5e1}.legend-color.free{background-color:#fafafa;border-color:#e5e5e5}.legend-item span{font-size:.875rem;color:var(--text-secondary)}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.empty-icon{font-size:4rem;margin-bottom:1rem}.empty-state h3{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.empty-state p{font-size:1rem}@media (max-width: 1024px){.timetable-grid{overflow-x:auto}.timetable-header,.timetable-row{min-width:800px}}@media (max-width: 768px){.timetable-container{padding:1rem 0}.timetable-controls{flex-direction:column;gap:1rem}.control-group{width:100%}.class-card{font-size:.625rem;padding:.5rem}.class-subject{margin-bottom:.125rem}.class-code,.class-teacher,.class-room{font-size:.5rem}.daily-class-card{flex-direction:column;align-items:flex-start;gap:.5rem}.daily-time{min-width:auto}.legend-items{flex-direction:column;gap:.75rem}}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding-top:4rem}@media (max-width: 768px){.main-content{padding-top:3.5rem}}