:root{--color-primary:#4caf50;--color-primary-light:#c8e6c9;--color-primary-lighter:#e8f5e9;--color-primary-dark:#388e3c;--color-primary-darker:#2e7d32;--color-white:#fff;--color-gray-50:#fafafa;--color-gray-100:#f5f5f5;--color-gray-200:#eee;--color-gray-300:#e0e0e0;--color-gray-400:#bdbdbd;--color-gray-500:#9e9e9e;--color-gray-600:#757575;--color-gray-700:#616161;--color-gray-800:#424242;--color-gray-900:#212121;--color-text-primary:#212121;--color-text-secondary:#616161;--color-text-disabled:#9e9e9e;--color-text-inverse:#fff;--color-success:#4caf50;--color-success-light:#c8e6c9;--color-error:#f44336;--color-error-light:#ffcdd2;--color-warning:#ff9800;--color-warning-light:#ffe0b2;--color-info:#2196f3;--color-info-light:#bbdefb;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--spacing-3xl:4rem;--border-radius-sm:0.25rem;--border-radius-md:0.5rem;--border-radius-lg:0.75rem;--border-radius-xl:1rem;--border-radius-full:9999px;--transition-fast:150ms ease-in-out;--transition-base:250ms ease-in-out;--transition-slow:350ms ease-in-out;--z-dropdown:1000;--z-sticky:1020;--z-fixed:1030;--z-modal-backdrop:1040;--z-modal:1050;--z-popover:1060;--z-tooltip:1070}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{background-color:var(--color-gray-50);color:var(--color-text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.6;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}::-webkit-scrollbar{height:10px;width:10px}::-webkit-scrollbar-track{background:var(--color-gray-100)}::-webkit-scrollbar-thumb{background:var(--color-gray-400);border-radius:var(--border-radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-gray-500)}a{color:var(--color-primary-darker);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark)}button{border:none;cursor:pointer;font-family:inherit;outline:none;transition:all var(--transition-base)}button:disabled{cursor:not-allowed;opacity:.6}input,select,textarea{font-family:inherit;outline:none;transition:all var(--transition-base)}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn{align-items:center;border-radius:var(--border-radius-md);display:inline-flex;font-size:1rem;font-weight:500;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);transition:all var(--transition-base);white-space:nowrap}.btn-primary{background-color:var(--color-primary);box-shadow:var(--shadow-sm);color:var(--color-text-primary)}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-dark);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:active:not(:disabled){box-shadow:var(--shadow-sm);transform:translateY(0)}.btn-secondary{background-color:var(--color-white);border:1px solid var(--color-gray-300);box-shadow:var(--shadow-sm);color:var(--color-text-primary)}.btn-secondary:hover:not(:disabled){background-color:var(--color-gray-50);border-color:var(--color-primary);box-shadow:var(--shadow-md)}.btn-outline{background-color:initial;border:2px solid var(--color-primary);color:var(--color-primary-darker)}.btn-outline:hover:not(:disabled){background-color:var(--color-primary);color:var(--color-text-primary)}.card{background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);padding:var(--spacing-lg);transition:box-shadow var(--transition-base)}.card:hover{box-shadow:var(--shadow-lg)}.card-header{border-bottom:1px solid var(--color-gray-200);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-md)}.card-title{color:var(--color-text-primary);font-size:1.25rem;font-weight:600;margin-bottom:var(--spacing-xs)}.card-subtitle{color:var(--color-text-secondary);font-size:.875rem}.input-group{margin-bottom:var(--spacing-md)}.input-label{display:block;font-size:.875rem;font-weight:500;margin-bottom:var(--spacing-xs)}.input,.input-label{color:var(--color-text-primary)}.input{background-color:var(--color-white);border:1px solid var(--color-gray-300);border-radius:var(--border-radius-md);font-size:1rem;padding:var(--spacing-sm) var(--spacing-md);transition:all var(--transition-base);width:100%}.input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-lighter)}.input:disabled{background-color:var(--color-gray-100);cursor:not-allowed}.input-error{border-color:var(--color-error)}.input-error:focus{box-shadow:0 0 0 3px var(--color-error-light)}.input-error-message{color:var(--color-error);display:block;font-size:.75rem;margin-top:var(--spacing-xs)}.container{margin:0 auto;max-width:1200px;padding:0 var(--spacing-md);width:100%}.header{background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);box-shadow:var(--shadow-md);color:var(--color-text-primary);padding:var(--spacing-lg) 0}.header-content{justify-content:space-between}.header-content,.header-title{align-items:center;display:flex}.header-title{font-size:1.5rem;font-weight:700;gap:var(--spacing-sm)}.header-nav{align-items:center;display:flex;gap:var(--spacing-md)}.layout{display:flex;flex-direction:column;min-height:100vh}.layout-main{background-color:var(--color-gray-50);flex:1 1;padding:var(--spacing-xl) 0}.alert{align-items:center;border-radius:var(--border-radius-md);display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-md);padding:var(--spacing-md)}.alert-success{background-color:var(--color-success-light);border:1px solid var(--color-success);color:var(--color-success)}.alert-error{background-color:var(--color-error-light);border:1px solid var(--color-error);color:var(--color-error)}.alert-warning{background-color:var(--color-warning-light);border:1px solid var(--color-warning);color:var(--color-warning)}.alert-info{background-color:var(--color-info-light);border:1px solid var(--color-info);color:var(--color-info)}.loading{align-items:center;display:flex;justify-content:center;padding:var(--spacing-2xl)}.spinner{animation:spin .8s linear infinite;border:4px solid var(--color-gray-200);border-radius:50%;border-top-color:var(--color-primary);height:40px;width:40px}.badge{align-items:center;background-color:var(--color-primary-lighter);border-radius:var(--border-radius-full);color:var(--color-primary-darker);display:inline-flex;font-size:.75rem;font-weight:500;padding:var(--spacing-xs) var(--spacing-sm)}.badge-success{background-color:var(--color-success-light);color:var(--color-success)}.badge-error{background-color:var(--color-error-light);color:var(--color-error)}.table{background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);overflow:hidden;width:100%}.table-header{background:linear-gradient(135deg,var(--color-primary-lighter) 0,var(--color-primary-light) 100%)}.table th{border-bottom:2px solid var(--color-primary);color:var(--color-text-primary);font-weight:600;text-align:left}.table td,.table th{padding:var(--spacing-md)}.table td{border-bottom:1px solid var(--color-gray-200)}.table tr:hover{background-color:var(--color-primary-lighter)}.table tr:last-child td{border-bottom:none}@media (max-width:768px){.btn{font-size:.875rem;padding:var(--spacing-sm) var(--spacing-md)}.table td,.table th{font-size:.875rem;padding:var(--spacing-sm)}.page-header-actions{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);width:100%}.page-header-actions .btn{flex:1 1;min-width:120px}.card{padding:var(--spacing-md)}}@media (max-width:480px){.btn{font-size:.8rem;padding:var(--spacing-xs) var(--spacing-sm)}.input{font-size:16px}}.sidebar{background:linear-gradient(180deg,var(--color-primary) 0,var(--color-primary-dark) 100%);box-shadow:var(--shadow-lg);color:var(--color-text-primary);display:flex;flex-direction:column;height:100vh;left:0;position:fixed;top:0;transition:transform var(--transition-base);width:250px;z-index:100}.sidebar.sidebar-closed{transform:translateX(-100%)}.sidebar.sidebar-open{transform:translateX(0)}@media (min-width:769px){.sidebar.sidebar-closed{transform:translateX(0)}}.sidebar-overlay{background-color:#00000080;bottom:0;display:none;left:0;position:fixed;right:0;top:0;z-index:99}@media (max-width:768px){.sidebar-overlay{display:block}.sidebar.sidebar-closed{transform:translateX(-100%)}}.sidebar-header{align-items:center;border-bottom:1px solid #fff3;display:flex;gap:var(--spacing-md);padding:var(--spacing-lg) var(--spacing-xl)}.sidebar-toggle{align-items:center;background:none;border:none;color:var(--color-text-primary);cursor:pointer;display:flex;justify-content:center;padding:var(--spacing-xs);transition:transform var(--transition-base)}.sidebar-toggle:hover{transform:scale(1.1)}.hamburger{cursor:pointer;display:flex;flex-direction:column;height:18px;justify-content:space-between;width:24px}.hamburger span{background-color:var(--color-text-primary);border-radius:2px;display:block;height:3px;transition:all var(--transition-base);width:100%}.hamburger-open span:first-child{transform:rotate(45deg) translate(6px,6px)}.hamburger-open span:nth-child(2){opacity:0}.hamburger-open span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}.sidebar-title{color:var(--color-text-primary);font-size:1.25rem;font-weight:700;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-closed .sidebar-title{display:none}.sidebar-nav{flex:1 1;overflow-y:auto;padding:var(--spacing-md) 0}.sidebar-menu{list-style:none;margin:0;padding:0}.sidebar-item{align-items:center;border-left:3px solid #0000;color:var(--color-text-primary);display:flex;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-xl);text-decoration:none;transition:all var(--transition-base)}.sidebar-item:hover{background-color:#ffffff1a;border-left-color:var(--color-white)}.sidebar-item.active{background-color:#fff3;border-left-color:var(--color-white);font-weight:600}.sidebar-icon{font-size:1.25rem;text-align:center;width:24px}.sidebar-label{font-size:1rem}.footer{background-color:var(--color-gray-800);color:var(--color-text-inverse);margin-top:auto;padding:var(--spacing-xl) 0 0}.footer-content{grid-gap:var(--spacing-xl);display:grid;gap:var(--spacing-xl);grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:0 auto;max-width:1200px;padding:0 var(--spacing-xl);padding-bottom:var(--spacing-lg)}.footer-section{display:flex;flex-direction:column;gap:var(--spacing-md)}.footer-title{color:var(--color-primary);font-size:1.5rem;font-weight:700;margin:0}.footer-description{color:var(--color-gray-300);font-size:.9rem;line-height:1.6;margin:0}.footer-section-title{color:var(--color-text-inverse);font-size:1.1rem;font-weight:600;margin:0 0 var(--spacing-sm) 0}.footer-contact{display:flex;flex-direction:column;gap:var(--spacing-sm)}.footer-contact-item{align-items:center;display:flex;gap:var(--spacing-sm)}.footer-contact-icon{font-size:1.2rem}.footer-contact-text,.footer-text{color:var(--color-gray-300);font-size:.9rem}.footer-text{line-height:1.6;margin:0}.footer-bottom{border-top:1px solid var(--color-gray-700);padding:var(--spacing-md) var(--spacing-xl);text-align:center}.footer-copyright{color:var(--color-gray-400);font-size:.85rem;margin:0}@media (max-width:768px){.footer-content{gap:var(--spacing-lg);grid-template-columns:1fr}.footer-section{text-align:center}.footer-contact{align-items:center}}.toast-container{display:flex;flex-direction:column;gap:var(--spacing-sm);max-width:400px;position:fixed;right:20px;top:20px;z-index:10000}.toast{align-items:center;animation:slideIn .3s ease-out;border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg);display:flex;justify-content:space-between;min-width:300px;padding:var(--spacing-md) var(--spacing-lg)}@keyframes slideIn{0%{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}.toast-success{background-color:var(--color-success-light);border-left:4px solid var(--color-success);color:var(--color-success)}.toast-error{background-color:var(--color-error-light);border-left:4px solid var(--color-error);color:var(--color-error)}.toast-warning{background-color:var(--color-warning-light);border-left:4px solid var(--color-warning);color:var(--color-warning)}.toast-info{background-color:var(--color-info-light);border-left:4px solid var(--color-info);color:var(--color-info)}.toast-message{flex:1 1;font-size:.875rem;font-weight:500}.toast-close{align-items:center;background:none;border:none;color:inherit;cursor:pointer;display:flex;font-size:1.5rem;height:24px;justify-content:center;line-height:1;margin-left:var(--spacing-sm);opacity:.7;padding:0;width:24px}.toast-close:hover{opacity:1}.main-layout{background-color:var(--color-gray-50);display:flex;min-height:100vh}.main-layout-loading{align-items:center;display:flex;justify-content:center;min-height:100vh}.main-layout-content{display:flex;flex:1 1;flex-direction:column;margin-left:250px;min-height:100vh;transition:margin-left var(--transition-base)}.main-layout-content.sidebar-closed{margin-left:0}@media (min-width:769px){.main-layout-content.sidebar-closed{margin-left:250px}}.main-header{background-color:var(--color-white);border-bottom:1px solid var(--color-gray-200);box-shadow:var(--shadow-sm);position:-webkit-sticky;position:sticky;top:0;z-index:10}.main-header-content{align-items:center;display:flex;gap:var(--spacing-md);justify-content:space-between;padding:var(--spacing-lg) var(--spacing-xl)}.main-header-menu-toggle{background:none;border:none;color:var(--color-text-primary);cursor:pointer;display:none;padding:var(--spacing-xs);transition:transform var(--transition-base)}.main-header-menu-toggle:hover{transform:scale(1.1)}.main-header-menu-toggle .hamburger{cursor:pointer;display:flex;flex-direction:column;height:18px;justify-content:space-between;width:24px}.main-header-menu-toggle .hamburger span{background-color:var(--color-text-primary);border-radius:2px;display:block;height:3px;transition:all var(--transition-base);width:100%}.main-header-menu-toggle .hamburger-open span:first-child{transform:rotate(45deg) translate(6px,6px)}.main-header-menu-toggle .hamburger-open span:nth-child(2){opacity:0}.main-header-menu-toggle .hamburger-open span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}.main-header-title{color:var(--color-text-primary);font-size:1.5rem;font-weight:700;margin:0}.main-header-actions{align-items:center;display:flex;gap:var(--spacing-md)}.main-header-user{background-color:var(--color-gray-100);border-radius:var(--border-radius-full);color:var(--color-text-secondary);font-size:.875rem;padding:var(--spacing-xs) var(--spacing-md)}.main-content{flex:1 1;overflow-y:auto;padding:var(--spacing-xl)}@media (max-width:768px){.main-layout-content{margin-left:0}.main-header-menu-toggle{display:block}.main-header-title{font-size:1.125rem}.main-header-content{padding:var(--spacing-md)}.main-header-user{display:none}.main-content{padding:var(--spacing-md)}}@media (max-width:480px){.main-header-content{padding:var(--spacing-sm) var(--spacing-md)}.main-header-title{font-size:1rem}.main-content{padding:var(--spacing-sm)}}.password-input-wrapper{align-items:center;display:flex;position:relative}.password-input{padding-right:45px}.password-toggle{align-items:center;background:none;border:none;color:var(--color-text-secondary);cursor:pointer;display:flex;font-size:1.2rem;justify-content:center;padding:8px;position:absolute;right:12px;transition:color var(--transition-base);z-index:1}.password-toggle:hover{color:var(--color-primary)}.password-toggle:disabled{cursor:not-allowed;opacity:.5}.checkbox-group{margin-bottom:var(--spacing-md)}.checkbox-label{-webkit-user-select:none;user-select:none}.checkbox-input{accent-color:var(--color-primary);cursor:pointer;height:18px;margin-right:var(--spacing-sm);width:18px}.checkbox-text{color:var(--color-text-secondary);font-size:.9rem}.checkbox-label:hover .checkbox-text{color:var(--color-text-primary)}.login-footer-links{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-top:var(--spacing-md);text-align:center}.link{color:var(--color-primary);font-size:.9rem;text-decoration:none;transition:color var(--transition-base)}.link:hover{color:var(--color-primary-darker);text-decoration:underline}.link-button{background:none;border:none;color:var(--color-primary);cursor:pointer;font-family:inherit;font-size:.9rem;padding:0;text-decoration:none;transition:color var(--transition-base)}.link-button:hover{color:var(--color-primary-darker);text-decoration:underline}.link-button:disabled{cursor:not-allowed;opacity:.5}.success-message{padding:var(--spacing-lg);text-align:center}.success-icon{font-size:2rem;height:64px;width:64px}.success-text{color:var(--color-text-primary);line-height:1.6;margin-bottom:var(--spacing-md)}.success-hint{color:var(--color-text-secondary);font-size:.9rem;margin-bottom:var(--spacing-lg)}.dashboard-page{margin:0 auto;max-width:1200px}.page-title{margin-bottom:var(--spacing-xl)}.dashboard-card{align-items:center;display:flex;gap:var(--spacing-lg);padding:var(--spacing-xl);transition:transform var(--transition-base),box-shadow var(--transition-base)}.dashboard-card:hover{transform:translateY(-2px)}.dashboard-card-icon{align-items:center;background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);display:flex;font-size:3rem;height:80px;justify-content:center;width:80px}.dashboard-card-content{flex:1 1}.dashboard-card-value{font-size:2.5rem;line-height:1}.dashboard-card-label{color:var(--color-text-secondary);font-size:1rem;font-weight:500}.dashboard-info{background-color:var(--color-primary-lighter);border-radius:var(--border-radius-lg);color:var(--color-text-secondary);margin-top:var(--spacing-xl);padding:var(--spacing-lg);text-align:center}.dashboard-card-large{align-items:flex-start;flex-direction:column;grid-column:span 2}.dashboard-card-header{align-items:center;display:flex;gap:var(--spacing-md);margin-bottom:var(--spacing-lg);width:100%}.dashboard-card-title{color:var(--color-text-primary);font-size:1.25rem;font-weight:600;margin:0}.dashboard-card-body{display:flex;flex-direction:column;gap:var(--spacing-sm);width:100%}.stat-row{align-items:center;border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;padding:var(--spacing-sm) 0}.stat-row:last-child{border-bottom:none}.stat-label{color:var(--color-text-secondary);font-size:.95rem}.stat-value{color:var(--color-text-primary);font-size:1.1rem;font-weight:600}.stat-success{color:#28a745}.stat-warning{color:#4caf50}.stat-danger{color:#dc3545}.stat-info{color:#17a2b8}@media (max-width:768px){.dashboard-card-large{grid-column:span 1}}.page{margin:0 auto;max-width:1400px;padding:var(--spacing-md)}.page-header{align-items:center;display:flex;flex-wrap:wrap;gap:var(--spacing-md);justify-content:space-between;margin-bottom:var(--spacing-xl)}.page-title{color:var(--color-text-primary);font-size:2rem;font-weight:700;margin:0}@media (max-width:768px){.page{padding:var(--spacing-sm)}.page-header{align-items:flex-start;flex-direction:column}.page-title{font-size:1.5rem}.page-header .btn{width:100%}}@media (max-width:480px){.page{padding:var(--spacing-xs)}.page-title{font-size:1.25rem}}.data-table-wrapper{background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.data-table{border-collapse:collapse;width:100%}.data-table-row-clickable{cursor:pointer}.data-table-row-clickable:hover{background-color:var(--color-primary-lighter)!important}.data-table-loading{align-items:center;background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);display:flex;flex-direction:column;justify-content:center;padding:var(--spacing-2xl)}.data-table-loading p{color:var(--color-text-secondary);margin-top:var(--spacing-md)}.data-table-empty{background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);color:var(--color-text-secondary);padding:var(--spacing-2xl);text-align:center}@media (max-width:768px){.data-table-wrapper{-webkit-overflow-scrolling:touch;overflow-x:auto}.data-table{min-width:600px}.data-table td,.data-table th{font-size:.875rem;padding:var(--spacing-sm)}.table-actions{flex-direction:column;gap:var(--spacing-xs)}.table-actions .btn{font-size:.875rem;padding:var(--spacing-xs) var(--spacing-sm);width:100%}}@media (max-width:480px){.data-table{min-width:500px}.data-table td,.data-table th{font-size:.8rem;padding:var(--spacing-xs)}}.confirm-dialog-overlay{align-items:center;animation:fadeIn .2s ease-out;background-color:#00000080;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.confirm-dialog{animation:slideUp .3s ease-out;background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-xl);max-height:90vh;max-width:500px;overflow:auto;width:90%}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.confirm-dialog-header{border-bottom:1px solid var(--color-gray-200);padding:var(--spacing-lg)}.confirm-dialog-title{color:var(--color-text-primary);font-size:1.25rem;font-weight:600;margin:0}.confirm-dialog-body{padding:var(--spacing-lg)}.confirm-dialog-message{color:var(--color-text-secondary);font-size:1rem;line-height:1.6;margin:0}.confirm-dialog-footer{border-top:1px solid var(--color-gray-200);display:flex;gap:var(--spacing-md);justify-content:flex-end;padding:var(--spacing-lg)}.confirm-dialog-confirm.confirm-dialog-danger{background-color:var(--color-error)}.confirm-dialog-confirm.confirm-dialog-danger:hover:not(:disabled){background-color:#c53030;background-color:var(--color-error-dark,#c53030)}.confirm-dialog-confirm.confirm-dialog-warning{background-color:var(--color-warning)}.confirm-dialog-confirm.confirm-dialog-warning:hover:not(:disabled){background-color:#c05621;background-color:var(--color-warning-dark,#c05621)}.table-actions{display:flex;gap:var(--spacing-sm)}.btn-danger{background-color:var(--color-error);color:var(--color-white)}.btn-danger:hover:not(:disabled){background-color:#c53030;background-color:var(--color-error-dark,#c53030)}.badge-info{background-color:var(--color-info-light);color:var(--color-info)}.students-search-section{align-items:center;display:flex;flex-wrap:wrap;gap:var(--spacing-md);margin-bottom:var(--spacing-lg)}.search-input-wrapper{align-items:center;display:flex;flex:1 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var(--color-primary);border-radius:var(--border-radius-md);padding:var(--spacing-md)}.log-header{justify-content:space-between;margin-bottom:var(--spacing-sm)}.log-action,.log-header{align-items:center;display:flex}.log-action{gap:var(--spacing-sm)}.log-field{font-style:italic}.log-date,.log-field{color:var(--color-text-secondary);font-size:.85rem}.log-details{display:flex;flex-direction:column;gap:var(--spacing-xs)}.log-school,.log-section,.log-user{color:var(--color-text-primary);font-size:.9rem;margin:0}.log-section{font-weight:600}.loading-logs{align-items:center;display:flex;flex-direction:column;gap:var(--spacing-md);justify-content:center;padding:var(--spacing-xl)}.empty-message{color:var(--color-text-secondary);padding:var(--spacing-xl);text-align:center}@media (max-width:768px){.user-details-grid{grid-template-columns:1fr}.log-header{align-items:flex-start;flex-direction:column;gap:var(--spacing-xs)}}.user-created-success{margin:0 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var(--color-primary);border-radius:var(--border-radius-md);display:flex;gap:var(--spacing-md);padding:var(--spacing-md)}.password-value{background:none;border:none;color:var(--color-primary-darker);flex:1 1;font-family:Courier New,monospace;font-size:1.2rem;font-weight:600;letter-spacing:.1rem;padding:0;text-align:center}.password-warning{color:var(--color-warning);display:block;font-weight:600;margin-top:var(--spacing-sm)}.success-actions{display:flex;gap:var(--spacing-md);justify-content:center}.landing-page{background:linear-gradient(135deg,var(--color-primary-lighter) 0,var(--color-white) 50%,var(--color-primary-light) 100%);min-height:100vh}.landing-container{margin:0 auto;max-width:1200px;padding:0 var(--spacing-xl)}.landing-hero{background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);color:var(--color-text-inverse);overflow:hidden;padding:var(--spacing-3xl) var(--spacing-xl);position:relative;text-align:center}.landing-hero:before{background:url("data:image/svg+xml;charset=utf-8,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='50' cy='50' r='2' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E");bottom:0;content:"";left:0;opacity:.3;position:absolute;right:0;top:0}.landing-hero-content{position:relative;z-index:1}.landing-hero-title{font-size:4rem;font-weight:800;line-height:1.2;margin:0 0 var(--spacing-md) 0}.landing-highlight{color:var(--color-white);text-shadow:2px 2px 4px #0003}.landing-hero-subtitle{font-size:1.75rem;font-weight:600;margin:0 0 var(--spacing-lg) 0;opacity:.95}.landing-hero-description{font-size:1.25rem;line-height:1.6;margin:0 auto var(--spacing-xl);max-width:800px;opacity:.9}.landing-hero-actions{margin-top:var(--spacing-xl)}.btn-large{font-size:1.125rem;font-weight:600;padding:var(--spacing-md) var(--spacing-2xl)}.landing-features{background-color:var(--color-white);padding:var(--spacing-3xl) var(--spacing-xl)}.landing-section-title{color:var(--color-text-primary);font-size:2.5rem;font-weight:700;margin:0 0 var(--spacing-3xl) 0;text-align:center}.landing-features-grid{grid-gap:var(--spacing-xl);display:grid;gap:var(--spacing-xl);grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.landing-feature-card{background-color:var(--color-white);border:2px solid var(--color-gray-200);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);padding:var(--spacing-xl);text-align:center;transition:transform var(--transition-base),box-shadow var(--transition-base)}.landing-feature-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-lg);transform:translateY(-5px)}.landing-feature-icon{font-size:4rem;margin-bottom:var(--spacing-md)}.landing-feature-title{color:var(--color-text-primary);font-size:1.5rem;font-weight:600;margin:0 0 var(--spacing-md) 0}.landing-feature-description{color:var(--color-text-secondary);font-size:1rem;line-height:1.6;margin:0}.landing-about{background-color:var(--color-gray-50);padding:var(--spacing-3xl) var(--spacing-xl)}.landing-about-content{margin:0 auto;max-width:900px}.landing-about-text{text-align:center}.landing-about-description{color:var(--color-text-primary);font-size:1.125rem;line-height:1.8;margin:0 0 var(--spacing-lg) 0}.landing-about-description:last-child{margin-bottom:0}.landing-about-description strong{color:var(--color-primary-darker);font-weight:600}.landing-company{background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);color:var(--color-text-inverse);padding:var(--spacing-3xl) var(--spacing-xl)}.landing-company-content{margin:0 auto;max-width:900px;text-align:center}.landing-company-logo{margin-bottom:var(--spacing-xl)}.landing-company-name{color:var(--color-white);font-size:3rem;font-weight:800;margin:0 0 var(--spacing-sm) 0}.landing-company-tagline{font-size:1.5rem;font-weight:500;margin:0;opacity:.9}.landing-company-description{font-size:1.125rem;line-height:1.8;opacity:.95}.landing-company-description p{margin:0 0 var(--spacing-md) 0}.landing-company-description p:last-child{margin-bottom:0}.landing-company-description strong{color:var(--color-white);font-weight:600}.landing-contact{background-color:var(--color-white);padding:var(--spacing-3xl) var(--spacing-xl)}.landing-contact-content{grid-gap:var(--spacing-xl);display:grid;gap:var(--spacing-xl);grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:0 auto;max-width:900px}.landing-contact-item{align-items:flex-start;background-color:var(--color-gray-50);border-radius:var(--border-radius-lg);display:flex;gap:var(--spacing-md);padding:var(--spacing-lg);transition:transform var(--transition-base),box-shadow var(--transition-base)}.landing-contact-item:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.landing-contact-icon{flex-shrink:0;font-size:2.5rem}.landing-contact-info{flex:1 1}.landing-contact-label{color:var(--color-text-secondary);font-size:1rem;font-weight:600;margin:0 0 var(--spacing-xs) 0}.landing-contact-value{color:var(--color-text-primary);font-size:1.125rem;margin:0}.landing-footer{background-color:var(--color-gray-800);color:var(--color-text-inverse);padding:var(--spacing-xl);text-align:center}.landing-footer-text{color:var(--color-gray-300);font-size:.9rem;margin:var(--spacing-xs) 0}@media (max-width:768px){.landing-hero-title{font-size:2.5rem}.landing-hero-subtitle{font-size:1.25rem}.landing-hero-description{font-size:1rem}.landing-section-title{font-size:2rem}.landing-features-grid{grid-template-columns:1fr}.landing-company-name{font-size:2rem}.landing-company-tagline{font-size:1.125rem}.landing-contact-content{grid-template-columns:1fr}}.App{flex-direction:column}.App,.login-page{display:flex;min-height:100vh}.login-page{align-items:center;background:linear-gradient(135deg,var(--color-primary-lighter) 0,var(--color-white) 50%,var(--color-primary-light) 100%);justify-content:center;padding:var(--spacing-md)}.login-card{background-color:var(--color-white);border-radius:var(--border-radius-xl);box-shadow:var(--shadow-xl);max-width:400px;padding:var(--spacing-2xl);width:100%}.login-header{margin-bottom:var(--spacing-2xl);text-align:center}.login-logo{align-items:center;background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);display:flex;font-size:2rem;height:80px;justify-content:center;margin:0 auto var(--spacing-md);width:80px}.login-logo,.login-title{color:var(--color-text-primary);font-weight:700}.login-title{font-size:1.75rem;margin-bottom:var(--spacing-xs)}.login-subtitle{color:var(--color-text-secondary);font-size:.875rem}.login-form{display:flex;flex-direction:column;gap:var(--spacing-md)}.login-footer{border-top:1px solid var(--color-gray-200);color:var(--color-text-secondary);font-size:.875rem;margin-top:var(--spacing-lg);padding-top:var(--spacing-lg);text-align:center}.dashboard-page{min-height:100vh}.dashboard-header{background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);box-shadow:var(--shadow-md);color:var(--color-text-primary)}.dashboard-content,.dashboard-header{padding:var(--spacing-xl) 0}.dashboard-grid{grid-gap:var(--spacing-lg);display:grid;gap:var(--spacing-lg);grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-bottom:var(--spacing-xl)}.dashboard-card{background-color:var(--color-white);border-radius:var(--border-radius-lg);border-top:4px solid var(--color-primary);box-shadow:var(--shadow-md);padding:var(--spacing-lg);transition:all var(--transition-base)}.dashboard-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.dashboard-card-title{color:var(--color-text-secondary);font-size:.875rem;font-weight:500;letter-spacing:.5px;margin-bottom:var(--spacing-sm);text-transform:uppercase}.dashboard-card-value{color:var(--color-text-primary);font-size:2rem;font-weight:700;margin-bottom:var(--spacing-xs)}.dashboard-card-change{color:var(--color-success);font-size:.875rem}.students-page{min-height:100vh}.students-header{align-items:center;display:flex;flex-wrap:wrap;gap:var(--spacing-md);justify-content:space-between;margin-bottom:var(--spacing-lg)}.students-title{color:var(--color-text-primary);font-size:1.75rem;font-weight:700}.students-actions{display:flex;flex-wrap:wrap;gap:var(--spacing-md)}.empty-state{background-color:var(--color-white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);padding:var(--spacing-3xl) var(--spacing-md);text-align:center}.empty-state-icon{align-items:center;background-color:var(--color-primary-lighter);border-radius:50%;display:flex;font-size:2rem;height:80px;justify-content:center;margin:0 auto var(--spacing-lg);width:80px}.empty-state-title{color:var(--color-text-primary);font-size:1.25rem;font-weight:600;margin-bottom:var(--spacing-sm)}.empty-state-description{color:var(--color-text-secondary);font-size:.875rem;margin-bottom:var(--spacing-lg)}
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