:root{--primary: #2563EB;--primary-light: #3B82F6;--primary-lighter: #EFF6FF;--primary-dark: #1D4ED8;--white: #FFFFFF;--gray-50: #F8FAFC;--gray-100: #F1F5F9;--gray-200: #E2E8F0;--gray-300: #CBD5E1;--gray-400: #94A3B8;--gray-500: #64748B;--gray-600: #475569;--gray-700: #334155;--gray-800: #1E293B;--gray-900: #0F172A;--success: #10B981;--success-light: #ECFDF5;--warning: #F59E0B;--warning-light: #FFFBEB;--danger: #EF4444;--danger-light: #FEF2F2;--info: #6366F1;--info-light: #EEF2FF;--sidebar-width: 240px;--sidebar-collapsed-width: 68px;--sidebar-bg: #FFFFFF;--sidebar-text: #64748B;--sidebar-active-bg: #2563EB;--sidebar-active-text: #FFFFFF;--header-height: 56px;--header-bg: #FFFFFF;--bg-main: #F8FAFC;--bg-card: #FFFFFF;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow: 0 2px 6px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .07);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .08);--radius-xs: 4px;--radius-sm: 6px;--radius: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--transition: all .15s ease;--transition-slow: all .25s ease}[data-theme=dark]{--primary: #3B82F6;--primary-light: #60A5FA;--primary-lighter: #172554;--primary-dark: #2563EB;--white: #0F172A;--gray-50: #0F172A;--gray-100: #1E293B;--gray-200: #334155;--gray-300: #475569;--gray-400: #64748B;--gray-500: #94A3B8;--gray-600: #CBD5E1;--gray-700: #E2E8F0;--gray-800: #F1F5F9;--gray-900: #F8FAFC;--sidebar-bg: #0F172A;--sidebar-text: #94A3B8;--header-bg: #0F172A;--bg-main: #020617;--bg-card: #0F172A;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .2);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .25);--shadow: 0 2px 6px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .35)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:14px;scroll-behavior:smooth}body{font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--gray-800);background:var(--bg-main);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,select,textarea{font-family:inherit;outline:none}img{max-width:100%;display:block}.app-layout{display:flex;min-height:100vh}.main-content{flex:1;margin-left:var(--sidebar-width);transition:var(--transition-slow)}.main-content.collapsed{margin-left:var(--sidebar-collapsed-width)}.page-content{padding:20px;min-height:calc(100vh - var(--header-height))}.sidebar{position:fixed;left:0;top:0;height:100vh;width:var(--sidebar-width);background:var(--sidebar-bg);border-right:1px solid var(--gray-200);display:flex;flex-direction:column;z-index:1000;transition:var(--transition-slow);overflow-y:auto;overflow-x:hidden}.sidebar.collapsed{width:var(--sidebar-collapsed-width)}.sidebar-header{padding:14px 16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--gray-100);min-height:56px}.sidebar-logo{display:flex;align-items:center;gap:8px}.sidebar-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px;flex-shrink:0}.sidebar-logo-text{font-size:17px;font-weight:700;color:var(--gray-900);white-space:nowrap;overflow:hidden;letter-spacing:-.02em}.sidebar-logo-text span{color:var(--primary)}.sidebar-nav{flex:1;padding:8px}.nav-section{margin-bottom:4px}.nav-section-title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--gray-400);padding:10px 10px 4px;white-space:nowrap;overflow:hidden}.nav-item{display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:var(--radius);color:var(--sidebar-text);font-size:13px;font-weight:500;transition:var(--transition);cursor:pointer;white-space:nowrap;margin-bottom:1px;position:relative}.nav-item:hover{background:var(--gray-50);color:var(--gray-800)}.nav-item.active{background:var(--sidebar-active-bg);color:var(--sidebar-active-text);box-shadow:0 1px 4px #2563eb40}.nav-item.active:hover{background:var(--primary-dark)}.nav-item-icon{width:18px;height:18px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.nav-item-text{overflow:hidden;transition:var(--transition-slow)}.sidebar.collapsed .nav-item-text,.sidebar.collapsed .nav-section-title,.sidebar.collapsed .sidebar-logo-text{opacity:0;width:0}.nav-badge{margin-left:auto;background:var(--danger);color:#fff;font-size:10px;font-weight:600;padding:1px 6px;border-radius:var(--radius-full);min-width:18px;text-align:center}.header{height:var(--header-height);background:var(--header-bg);border-bottom:1px solid var(--gray-200);display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:12px}.header-toggle{background:none;border:none;color:var(--gray-400);padding:6px;border-radius:var(--radius-sm);transition:var(--transition);display:flex;align-items:center}.header-toggle:hover{background:var(--gray-100);color:var(--gray-700)}.header-search{position:relative}.header-search input{width:240px;height:34px;padding:0 12px 0 34px;background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius-full);color:var(--gray-800);font-size:12.5px;transition:var(--transition)}.header-search input:focus{background:var(--white);border-color:var(--primary);box-shadow:0 0 0 2px #2563eb14;width:280px}.header-search input::placeholder{color:var(--gray-400)}.header-search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--gray-400);width:14px;height:14px}.header-right{display:flex;align-items:center;gap:4px}.header-icon-btn{position:relative;width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:none;color:var(--gray-400);transition:var(--transition)}.header-icon-btn:hover{background:var(--gray-100);color:var(--gray-700)}.header-icon-btn .badge{position:absolute;top:5px;right:5px;width:7px;height:7px;background:var(--danger);border-radius:50%;border:1.5px solid var(--header-bg)}.header-user{display:flex;align-items:center;gap:8px;padding:4px 8px 4px 4px;border-radius:var(--radius);cursor:pointer;transition:var(--transition);margin-left:4px}.header-user:hover{background:var(--gray-50)}.header-user-avatar{width:30px;height:30px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary),#7C3AED);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:11px;flex-shrink:0}.header-user-info{display:flex;flex-direction:column}.header-user-name{font-size:12.5px;font-weight:600;color:var(--gray-800);line-height:1.2}.header-user-role{font-size:10.5px;color:var(--gray-400);text-transform:capitalize}.card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--gray-200);padding:16px;transition:var(--transition)}.card:hover{box-shadow:var(--shadow-sm)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.card-title{font-size:14px;font-weight:600;color:var(--gray-900);letter-spacing:-.01em}.card-subtitle{font-size:11.5px;color:var(--gray-400);margin-top:1px}.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.stat-card{background:var(--bg-card);border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:14px;display:flex;align-items:flex-start;gap:12px;transition:var(--transition);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;opacity:0;transition:var(--transition)}.stat-card:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.stat-card:hover:before{opacity:1}.stat-card:nth-child(1):before{background:var(--primary)}.stat-card:nth-child(2):before{background:var(--success)}.stat-card:nth-child(3):before{background:var(--warning)}.stat-card:nth-child(4):before{background:var(--info)}.stat-card-icon{width:38px;height:38px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;flex-shrink:0}.stat-card:nth-child(1) .stat-card-icon{background:var(--primary-lighter);color:var(--primary)}.stat-card:nth-child(2) .stat-card-icon{background:var(--success-light);color:var(--success)}.stat-card:nth-child(3) .stat-card-icon{background:var(--warning-light);color:var(--warning)}.stat-card:nth-child(4) .stat-card-icon{background:var(--info-light);color:var(--info)}.stat-card-content{flex:1;min-width:0}.stat-card-label{font-size:11.5px;color:var(--gray-500);font-weight:500;margin-bottom:2px;display:flex;align-items:center;gap:4px}.stat-card-value{font-size:22px;font-weight:700;color:var(--gray-900);line-height:1.2;letter-spacing:-.02em}.stat-card-footer{font-size:10.5px;color:var(--gray-400);margin-top:4px}.dashboard-grid{display:grid;grid-template-columns:1fr 300px;gap:18px}.chart-container{height:260px;margin-top:4px}.recent-list{display:flex;flex-direction:column;gap:2px}.recent-item{display:flex;align-items:center;gap:10px;padding:6px 0;border-bottom:1px solid var(--gray-100);transition:var(--transition)}.recent-item:last-child{border-bottom:none}.recent-item-avatar{width:34px;height:34px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary-light),#7C3AED);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:12px;flex-shrink:0}.recent-item-info{flex:1;min-width:0}.recent-item-name{font-size:12.5px;font-weight:600;color:var(--gray-800);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recent-item-detail{font-size:11px;color:var(--gray-400);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.table-container{overflow-x:auto}.data-table{width:100%;border-collapse:separate;border-spacing:0}.data-table th{background:var(--gray-50);font-size:11px;font-weight:600;color:var(--gray-500);text-transform:uppercase;letter-spacing:.06em;padding:8px 12px;text-align:left;border-bottom:1px solid var(--gray-200);white-space:nowrap}.data-table th:first-child{border-radius:var(--radius-sm) 0 0 0}.data-table th:last-child{border-radius:0 var(--radius-sm) 0 0}.data-table td{padding:10px 12px;font-size:12.5px;color:var(--gray-700);border-bottom:1px solid var(--gray-100);vertical-align:middle}.data-table tbody tr{transition:var(--transition)}.data-table tbody tr:hover{background:var(--gray-50)}.table-user{display:flex;align-items:center;gap:8px}.table-avatar{width:30px;height:30px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary-light),#7C3AED);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:11px;flex-shrink:0}.table-name{font-weight:600;color:var(--gray-800);font-size:12.5px}.table-sub{font-size:11px;color:var(--gray-400)}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:var(--radius-full);font-size:10.5px;font-weight:600;letter-spacing:.01em}.badge-primary{background:var(--primary-lighter);color:var(--primary)}.badge-success{background:var(--success-light);color:var(--success)}.badge-warning{background:var(--warning-light);color:var(--warning)}.badge-danger{background:var(--danger-light);color:var(--danger)}.badge-info{background:var(--info-light);color:var(--info)}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius);font-size:12.5px;font-weight:600;transition:var(--transition);border:none;cursor:pointer;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 3px #2563eb40}.btn-primary:hover{background:var(--primary-dark);box-shadow:0 2px 6px #2563eb4d;transform:translateY(-.5px)}.btn-secondary{background:var(--gray-100);color:var(--gray-600)}.btn-secondary:hover{background:var(--gray-200)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-outline{background:transparent;border:1.5px solid var(--gray-200);color:var(--gray-600)}.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-lighter)}.btn-sm{padding:4px 10px;font-size:11.5px}.btn-icon{width:32px;height:32px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm)}.form-group{margin-bottom:14px}.form-label{display:block;font-size:12px;font-weight:600;color:var(--gray-600);margin-bottom:4px}.form-input{width:100%;height:36px;padding:0 10px;background:var(--white);border:1.5px solid var(--gray-200);border-radius:var(--radius);color:var(--gray-800);font-size:12.5px;transition:var(--transition)}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px #2563eb14}.form-input::placeholder{color:var(--gray-400)}.form-select{width:100%;height:36px;padding:0 30px 0 10px;background:var(--white);border:1.5px solid var(--gray-200);border-radius:var(--radius);color:var(--gray-800);font-size:12.5px;transition:var(--transition);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 2px #2563eb14}.form-textarea{width:100%;min-height:80px;padding:8px 10px;background:var(--white);border:1.5px solid var(--gray-200);border-radius:var(--radius);color:var(--gray-800);font-size:12.5px;transition:var(--transition);resize:vertical}.form-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 2px #2563eb14}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-error{font-size:11px;color:var(--danger);margin-top:3px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:16px;animation:fadeIn .15s ease}.modal{background:var(--bg-card);border-radius:var(--radius-xl);width:100%;max-width:520px;max-height:88vh;overflow-y:auto;animation:slideUp .2s ease;box-shadow:var(--shadow-lg)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--gray-100)}.modal-title{font-size:15px;font-weight:700;color:var(--gray-900);letter-spacing:-.01em}.modal-close{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);background:var(--gray-100);color:var(--gray-500);transition:var(--transition)}.modal-close:hover{background:var(--gray-200);color:var(--gray-800)}.modal-body{padding:18px}.modal-footer{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:12px 18px;border-top:1px solid var(--gray-100)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.page-title{font-size:20px;font-weight:700;color:var(--gray-900);letter-spacing:-.02em}.page-breadcrumb{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--gray-400);margin-top:2px}.page-breadcrumb span{color:var(--gray-600)}.pagination{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--gray-100)}.pagination-info{font-size:12px;color:var(--gray-500)}.pagination-buttons{display:flex;gap:4px}.pagination-btn{min-width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--white);border:1px solid var(--gray-200);color:var(--gray-600);font-size:12px;font-weight:500;transition:var(--transition);padding:0 6px}.pagination-btn:hover{border-color:var(--primary);color:var(--primary)}.pagination-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.pagination-btn:disabled{opacity:.4;cursor:not-allowed}.filter-bar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.filter-bar .form-input,.filter-bar .form-select{height:34px;width:auto;min-width:140px}.filter-search{position:relative;flex:1;max-width:280px}.filter-search input{width:100%;height:34px;padding:0 10px 0 32px;background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius);font-size:12.5px;color:var(--gray-800);transition:var(--transition)}.filter-search input:focus{background:var(--white);border-color:var(--primary)}.filter-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--gray-400);width:14px;height:14px}.welcome-section{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.welcome-text h1{font-size:20px;font-weight:700;color:var(--gray-900);letter-spacing:-.02em}.welcome-text p{font-size:13px;color:var(--gray-500);margin-top:2px}.welcome-actions{display:flex;gap:8px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#0f172a,#1e1b4b,#0f172a);padding:16px;position:relative;overflow:hidden}.login-page:before{content:"";position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(37,99,235,.12),transparent 70%);top:-80px;right:-80px;border-radius:50%}.login-page:after{content:"";position:absolute;width:350px;height:350px;background:radial-gradient(circle,rgba(124,58,237,.08),transparent 70%);bottom:-80px;left:-80px;border-radius:50%}.login-card{width:100%;max-width:380px;background:#ffffff0a;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-xl);padding:32px;position:relative;z-index:1;animation:slideUp .4s ease}.login-header{text-align:center;margin-bottom:24px}.login-logo{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:16px}.login-logo-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),#60A5FA);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:17px}.login-logo-text{font-size:24px;font-weight:700;color:#fff;letter-spacing:-.02em}.login-logo-text span{color:#60a5fa}.login-header h2{font-size:17px;font-weight:700;color:#fff;margin-bottom:4px}.login-header p{font-size:13px;color:#ffffff73}.login-form .form-label{color:#fff9;font-size:12px}.login-form .form-input{background:#ffffff0d;border-color:#ffffff1a;color:#fff;height:38px}.login-form .form-input:focus{border-color:var(--primary);background:#ffffff14}.login-form .form-input::placeholder{color:#ffffff40}.login-btn{width:100%;height:40px;background:linear-gradient(135deg,var(--primary),#3B82F6);color:#fff;border:none;border-radius:var(--radius);font-size:13.5px;font-weight:600;cursor:pointer;transition:var(--transition);margin-top:4px}.login-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px #2563eb59}.login-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.login-error{background:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#fca5a5;padding:8px 12px;border-radius:var(--radius);font-size:12px;margin-bottom:12px;text-align:center}.login-demo{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.06)}.login-demo h4{font-size:10px;font-weight:600;color:#ffffff4d;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}.login-demo-btn{display:block;width:100%;padding:6px 10px;background:#ffffff08;border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-sm);color:#ffffff80;font-size:11.5px;text-align:left;margin-bottom:4px;transition:var(--transition);cursor:pointer}.login-demo-btn:hover{background:#ffffff12;color:#fff;border-color:#ffffff26}.login-demo-btn strong{color:#ffffffd9}.dropdown{position:relative}.dropdown-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:180px;background:var(--bg-card);border:1px solid var(--gray-200);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:4px;z-index:1500;animation:fadeIn .12s ease}.dropdown-item{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:var(--radius-xs);font-size:12.5px;color:var(--gray-600);cursor:pointer;transition:var(--transition);width:100%;background:none;text-align:left}.dropdown-item:hover{background:var(--gray-50);color:var(--gray-900)}.dropdown-item.danger{color:var(--danger)}.dropdown-item.danger:hover{background:var(--danger-light)}.dropdown-divider{height:1px;background:var(--gray-100);margin:3px 0}.empty-state{padding:40px 16px;text-align:center;color:var(--gray-400)}.empty-state-icon{width:52px;height:52px;margin:0 auto 12px;background:var(--gray-100);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--gray-300)}.empty-state h3{font-size:14px;font-weight:600;color:var(--gray-600);margin-bottom:4px}.empty-state p{font-size:12px;max-width:280px;margin:0 auto}.loading-spinner{display:flex;align-items:center;justify-content:center;padding:40px}.spinner{width:28px;height:28px;border:2.5px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}.toast-container{position:fixed;top:16px;right:16px;z-index:3000;display:flex;flex-direction:column;gap:6px}.toast{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--gray-200);box-shadow:var(--shadow-lg);min-width:260px;max-width:380px;animation:slideInRight .25s ease}.toast-success{border-left:3px solid var(--success)}.toast-error{border-left:3px solid var(--danger)}.toast-warning{border-left:3px solid var(--warning)}.toast-message{flex:1;font-size:12.5px;color:var(--gray-700)}.toast-close{background:none;border:none;color:var(--gray-400);cursor:pointer;padding:2px;font-size:12px}.action-buttons{display:flex;gap:4px}.action-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-xs);background:none;border:1px solid var(--gray-200);color:var(--gray-400);transition:var(--transition);cursor:pointer}.action-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-lighter)}.action-btn.delete:hover{border-color:var(--danger);color:var(--danger);background:var(--danger-light)}.grade-A{color:var(--success);font-weight:700}.grade-B{color:var(--primary);font-weight:700}.grade-C{color:var(--warning);font-weight:700}.grade-D{color:#f97316;font-weight:700}.grade-E{color:var(--danger);font-weight:700}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(60px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}.theme-toggle{display:flex;align-items:center;justify-content:center}@media (max-width: 1200px){.stat-cards{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}}@media (max-width: 768px){.sidebar{transform:translate(-100%)}.sidebar.mobile-open{transform:translate(0)}.main-content{margin-left:0!important}.stat-cards{grid-template-columns:1fr}.page-content{padding:12px}.header-search,.header-user-info{display:none}.form-grid{grid-template-columns:1fr}.modal{max-width:100%;margin:0 8px}.filter-bar{flex-direction:column}.filter-bar .form-input,.filter-bar .form-select,.filter-search{width:100%;max-width:100%}}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}::selection{background:#2563eb26;color:var(--gray-900)}