:root{--primary-color:#4a6fa5;--primary-dark:#2a4a7f;--primary-light:#3a5a8f;--success-color:#28a745;--danger-color:#dc3545;--warning-color:#ffc107;--info-color:#17a2b8;--light-gray:#f5f5f5;--dark-gray:#333;--bg-color:#000;--text-color:white;--card-bg:white;--card-text:#333}[data-theme=light]{--bg-color:#ffffff;--text-color:#333;--card-bg:#f8f9fa;--card-text:#333}[data-theme=dark]{--bg-color:#000;--text-color:white;--card-bg:#2d2d2d;--card-text:white}*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:20px;background-color:var(--bg-color);color:var(--text-color);padding-top:80px;transition:background-color .3s ease,color .3s ease}.container{max-width:1400px;margin:0 auto;background:var(--card-bg);color:var(--card-text);padding:20px;box-shadow:0 0 10px rgba(0,0,0,.1);border-radius:20px;transition:background-color .3s ease,color .3s ease}.navigation-header{position:fixed;top:0;left:0;right:0;color:#333;display:flex;justify-content:space-between;align-items:center;z-index:1000;box-shadow:0 2px 5px rgba(0,0,0,.1);padding:10px 20px;height:60px;box-sizing:border-box}.navigation-header img{height:40px}.nav-buttons{display:flex!important;gap:10px;margin-left:auto;flex-shrink:0}.nav-buttons button{padding:8px 15px;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;cursor:pointer;transition:all .2s;font-weight:600;display:flex;align-items:center;gap:5px}.nav-buttons button:hover{background-color:var(--primary-dark);transform:translateY(-1px)}.nav-buttons button.logout{background-color:var(--danger-color)}.nav-buttons button.logout:hover{background-color:#c82333}.header-logo{text-align:center;margin-bottom:25px}.header-logo img{max-height:100px;max-width:100%}.tabs{display:flex;border-bottom:1px solid #ddd;margin-bottom:20px}.hidden{display:none!important}.tab{padding:10px 20px;cursor:pointer;border-bottom:3px solid transparent;transition:all .3s;font-weight:600;color:#666}.tab.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.tab:hover:not(.active){color:var(--primary-dark);border-bottom-color:#ddd}.tab-content{display:none}.tab-content.active{display:block}.card{background:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);padding:20px;margin-bottom:20px;transition:transform .3s,box-shadow .3s}.card:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(0,0,0,.15)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.card-title{font-size:18px;font-weight:600;color:var(--primary-dark)}.card-body{padding:0}.request-card{background:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);padding:20px;margin-bottom:15px;transition:transform .3s,box-shadow .3s;border-left:4px solid var(--primary-color)}.request-card:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(0,0,0,.15)}.request-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.request-title{font-size:16px;font-weight:600;color:var(--primary-dark)}.request-status{padding:5px 10px;border-radius:20px;font-size:12px;font-weight:600;text-transform:capitalize}.status-pending{background-color:#fff8e6;color:var(--warning-color)}.status-approved{background-color:#e6f7ee;color:var(--success-color)}.status-rejected{background-color:#fde8e8;color:var(--danger-color)}.status-cancelled{background-color:#f5f5f5;color:var(--dark-gray)}.request-details{margin-bottom:15px}.detail-row{display:flex;margin-bottom:8px}.detail-label{width:150px;font-weight:600;color:var(--dark-gray)}.request-actions{display:flex;gap:10px;margin-top:15px}button{padding:8px 15px;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:600;transition:all .2s;display:flex;align-items:center;gap:5px}button:hover{transform:translateY(-1px)}button.btn-danger{background-color:var(--danger-color)}button.btn-danger:hover{background-color:#c82333}button.btn-success{background-color:var(--success-color)}button.btn-success:hover{background-color:#218838}button.btn-warning{background-color:var(--warning-color);color:#212529}button.btn-warning:hover{background-color:#e0a800}button.btn-secondary{background-color:#6c757d}button.btn-secondary:hover{background-color:#5a6268}button.btn-sm{padding:5px 10px;font-size:12px}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:600;color:var(--dark-gray)}.form-control,.form-select{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:14px;transition:border-color .3s}.form-control:focus,.form-select:focus{outline:0;border-color:var(--primary-color);box-shadow:0 0 5px rgba(74,111,165,.3)}.mobile-nav-toggle{display:none;background:0 0;border:none;color:var(--primary-color);font-size:24px;cursor:pointer;padding:8px;border-radius:4px}.mobile-nav-menu{display:none;position:absolute;top:100%;right:0;background:#fff;border-radius:8px;box-shadow:0 8px 25px rgba(0,0,0,.15);min-width:220px;overflow:hidden;z-index:1001;border:1px solid #eee}.mobile-nav-menu.show{display:block}.mobile-nav-menu button{width:100%;padding:15px 20px;text-align:left;background:0 0;border:none;color:#333;font-size:16px;font-weight:500;border-bottom:1px solid #f0f0f0;display:flex;align-items:center;gap:12px}.mobile-nav-menu button:last-child{border-bottom:none}.mobile-nav-menu button:hover{background-color:var(--primary-light);color:#fff}.mobile-nav-menu button.logout{color:var(--danger-color)}.mobile-nav-menu button.logout:hover{background-color:var(--danger-color);color:#fff}.mobile-nav-toggle:hover{background-color:var(--primary-color);color:#fff}@media (max-width:768px){body{padding:0;margin:0;padding-top:70px}.container{padding:15px;margin:0;border-radius:0;box-shadow:none;width:100%;max-width:100%}.navigation-header{background-color:#fff;height:70px;box-sizing:border-box}.navigation-header .nav-buttons{display:none!important}.mobile-nav-toggle{display:block!important}.navigation-header img#navProfileImage{margin:0;padding:0}.card-header button[onclick*=loadAllRequests],.card-header button[onclick*=loadMyRequests]{display:none!important}.container{overflow-x:hidden!important}.card-header{flex-direction:column!important;align-items:flex-start!important;gap:15px!important}.card-header>div{width:100%!important;flex-direction:column!important;gap:10px!important}.card-header .form-select{width:100%!important;max-width:100%!important}}.form-textarea{height:100px;resize:vertical}.file-upload{border:2px dashed #ddd;border-radius:8px;padding:40px 20px;text-align:center;cursor:pointer;transition:all .3s;background-color:#fafafa}.file-upload:hover{border-color:var(--primary-color);background-color:#f0f4ff}.file-upload i{font-size:32px;color:var(--primary-color);margin-bottom:10px}.file-upload p{margin:10px 0;color:#666}.file-upload input[type=file]{display:none}.file-name{margin-top:10px;font-weight:600;color:var(--primary-color)}.empty-state{text-align:center;padding:60px 20px;color:#666}.empty-state i{font-size:64px;color:#ddd;margin-bottom:20px}.empty-state h3{margin-bottom:10px;color:var(--dark-gray)}.empty-state p{margin-bottom:20px}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);z-index:2000}.modal-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.3);max-width:600px;width:90%;max-height:80vh;overflow-y:auto}.modal-header{padding:20px;border-bottom:1px solid #ddd;display:flex;justify-content:space-between;align-items:center}.modal-title{font-size:20px;font-weight:600;color:var(--primary-dark);margin:0}.modal-close{background:0 0;border:none;font-size:24px;cursor:pointer;color:#666;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center}.modal-close:hover{color:var(--danger-color)}.modal-body{padding:20px}.modal-footer{padding:20px;border-top:1px solid #ddd;display:flex;gap:10px;justify-content:flex-end}.profile-section{display:flex;gap:30px}.profile-card{flex:1;text-align:center;padding:20px;background:#f8f9fa;border-radius:8px}.profile-img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin-bottom:15px}.profile-name{font-size:18px;font-weight:600;margin-bottom:5px;color:var(--primary-dark)}.profile-email{color:#666;margin-bottom:15px}.profile-form{flex:2}.loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);display:none;justify-content:center;align-items:center;z-index:2000;flex-direction:column}.loading-spinner{border:5px solid #f3f3f3;border-top:5px solid var(--primary-color);border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}.loading-text{color:#fff;margin-top:15px;font-size:18px;font-weight:700}.toast{position:fixed;top:20px;right:20px;padding:15px 20px;background-color:var(--success-color);color:#fff;border-radius:8px;box-shadow:0 5px 15px rgba(0,0,0,.2);z-index:4000;display:flex;align-items:center;gap:10px;animation:slideIn .3s ease}.toast-error{background-color:var(--danger-color)}.toast-warning{background-color:var(--warning-color);color:#333}@keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}@media (max-width:768px){body{padding:0;padding-top:70px}.container{padding:15px}.card{padding:15px;padding-bottom:130px}.request-header{flex-direction:column;align-items:flex-start;gap:10px}.detail-row{flex-direction:column}.detail-label{width:auto;margin-bottom:5px}.modal-content{width:95%;max-height:90vh}.nav-buttons{flex-direction:column;gap:5px}.profile-section{flex-direction:column}.tabs{flex-wrap:wrap}.tab{flex:1;min-width:120px;text-align:center}}.btn-xs{padding:2px 6px;font-size:10px;line-height:1.2;border-radius:3px}.btn-outline{background:0 0;border:1px solid #ccc;color:#666;text-decoration:none}.btn-outline:hover{background:#f8f9fa;border-color:#999;color:#333}.modal iframe{display:none}.modal .btn{cursor:pointer;transition:all .2s ease}.modal .btn:hover{transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,.15)}