:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--bg-color: #f3f4f6;--card-bg: rgba(255, 255, 255, .8);--text-main: #111827;--text-muted: #6b7280;--border-color: #e5e7eb;--error-color: #ef4444;--glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--radius: 12px}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;background-color:var(--bg-color);color:var(--text-main);background-image:radial-gradient(at 0% 0%,rgba(37,99,235,.1) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(139,92,246,.1) 0px,transparent 50%);background-attachment:fixed;min-height:100vh}*{box-sizing:border-box}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.login-card{background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.4);padding:2.5rem;border-radius:var(--radius);box-shadow:var(--glass-shadow);width:100%;max-width:400px}.login-title{margin:0 0 .5rem;font-size:1.75rem;font-weight:700;text-align:center;color:var(--text-main)}.login-subtitle{margin:0 0 2rem;text-align:center;color:var(--text-muted)}.form-group{margin-bottom:1.25rem}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem;color:var(--text-main)}.hint{font-weight:400;color:var(--text-muted);font-size:.75rem;margin-left:.25rem}.form-group input{width:100%;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;transition:all .2s;background:#ffffffe6}.form-group input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.login-button{width:100%;padding:.75rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .2s;margin-top:1rem}.login-button:hover{background-color:var(--primary-hover)}.login-header{text-align:center;margin-bottom:2rem}.brand-logo{width:64px;height:64px;background:linear-gradient(135deg,var(--primary-color),#8b5cf6);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;box-shadow:0 10px 25px -5px #2563eb66}.login-header h1{font-size:1.75rem;font-weight:800;color:var(--text-main);margin-bottom:.5rem;letter-spacing:-.025em}.login-header p{color:var(--text-muted);font-size:.95rem}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:1rem;color:#9ca3af;pointer-events:none}.form-group input{width:100%;padding:.875rem 1rem .875rem 2.75rem;border:1px solid var(--border-color);border-radius:12px;font-size:.95rem;transition:all .2s cubic-bezier(.4,0,.2,1);background:#fff9}.form-group input:focus{outline:none;border-color:var(--primary-color);background:#fff;box-shadow:0 0 0 4px #2563eb1a;transform:translateY(-1px)}.login-btn{width:100%;padding:.875rem;background:linear-gradient(to right,var(--primary-color),#4f46e5);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 6px -1px #2563eb33}.login-btn:hover{filter:brightness(110%);transform:translateY(-1px);box-shadow:0 10px 15px -3px #2563eb4d}.login-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.error-alert{background-color:#fef2f2;border:1px solid #fee2e2;color:#ef4444;padding:.75rem 1rem;border-radius:12px;margin-bottom:1.5rem;font-size:.875rem;display:flex;align-items:center;gap:.5rem}.admin-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:280px;background:#fff;border-right:1px solid var(--border-color);display:flex;flex-direction:column}.brand{padding:1.5rem;display:flex;align-items:center;gap:1rem;border-bottom:1px solid var(--border-color)}.logo{width:40px;height:40px;background:var(--primary-color);border-radius:8px;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem}.brand-text h2{margin:0;font-size:1rem;font-weight:700;color:var(--text-main)}.brand-text span{font-size:.75rem;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.05em}.nav-menu{flex:1;padding:1.5rem 1rem;display:flex;flex-direction:column;gap:.5rem}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius);color:var(--text-muted);text-decoration:none;font-weight:500;transition:all .2s}.nav-item:hover,.nav-item.active{background:#eff6ff;color:var(--primary-color)}.sidebar-footer{padding:1rem;border-top:1px solid var(--border-color)}.logout-btn{width:100%;display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;background:none;border:none;color:var(--error-color);cursor:pointer;border-radius:var(--radius);font-weight:500;transition:all .2s}.logout-btn:hover{background:#fef2f2}.main-content{flex:1;overflow:auto;background-color:#f9fafb}.content-container{padding:2rem;max-width:1400px;margin:0 auto}.dashboard-welcome{text-align:center;margin-top:4rem}.dashboard-welcome h1{font-size:2rem;color:var(--text-main);margin-bottom:.5rem}.dashboard-welcome p{color:var(--text-muted)}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.page-title{margin:0;font-size:1.5rem;color:var(--text-main)}.btn-primary{background:var(--primary-color);color:#fff;border:none;padding:.625rem 1.25rem;border-radius:8px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:background .2s}.btn-primary:hover{background:var(--primary-hover)}.table-card{background:#fff;border-radius:var(--radius);border:1px solid var(--border-color);overflow:hidden;box-shadow:0 1px 3px #0000000d}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:1rem 1.5rem;text-align:left;border-bottom:1px solid var(--border-color)}.data-table th{background:#f9fafb;font-weight:600;font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.data-table tr:last-child td{border-bottom:none}.status-badge{display:inline-flex;align-items:center;padding:.25rem .625rem;border-radius:999px;font-size:.75rem;font-weight:600}.status-active{background:#dcfce7;color:#166534}.status-inactive{background:#fee2e2;color:#991b1b}.action-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.25rem}.action-btn:hover{color:var(--primary-color)}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:50;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:#fff;border-radius:var(--radius);width:100%;max-width:500px;padding:2rem;box-shadow:0 20px 25px -5px #0000001a;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.modal-header h3{margin:0;font-size:1.25rem}.close-btn{background:none;border:none;cursor:pointer;color:var(--text-muted)}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:2rem}.btn-secondary{background:#fff;border:1px solid var(--border-color);color:var(--text-main);padding:.625rem 1.25rem;border-radius:8px;font-weight:600;cursor:pointer}.mobile-header{display:none;padding:1rem;background:#fff;border-bottom:1px solid var(--border-color);align-items:center;gap:1rem}.menu-toggle{background:none;border:none;cursor:pointer;color:var(--text-main);padding:0}.mobile-brand{font-weight:700;font-size:1.125rem;color:var(--text-main)}.close-sidebar-mobile,.sidebar-overlay{display:none}@media(max-width:768px){.admin-layout{flex-direction:column}.sidebar{position:fixed;top:0;left:0;bottom:0;width:280px;transform:translate(-100%);transition:transform .3s ease-in-out;z-index:50}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block;position:fixed;inset:0;background:#00000080;z-index:40;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.mobile-header{display:flex}.close-sidebar-mobile{display:block;background:none;border:none;color:var(--text-muted);margin-left:auto}.brand{justify-content:space-between}.main-content{width:100%;margin-left:0;padding:4rem 1rem 1rem}.content-container{padding:1rem}.table-card{overflow-x:auto;-webkit-overflow-scrolling:touch}.data-table{min-width:600px}.attendance-table{table-layout:fixed;width:max-content;min-width:100%}.attendance-table th,.attendance-table td{width:40px;min-width:40px;max-width:40px;font-size:.75rem;white-space:nowrap;text-align:center;padding:.5rem .25rem}.attendance-table th:first-child,.attendance-table td:first-child{width:150px;min-width:150px;max-width:150px;text-align:left;padding-left:1rem;position:sticky;left:0;background:#fff;z-index:20;border-right:2px solid var(--border-color)}.attendance-table thead th{background:#f9fafb;z-index:20}.attendance-table thead th:first-child{z-index:30}.page-header{flex-direction:column;align-items:flex-start;gap:1rem}.page-header h1{margin-bottom:.5rem}.page-header p{white-space:normal;font-size:.8rem}.page-header>div{width:100%;display:flex;flex-direction:column;gap:1rem;align-items:flex-start}.page-header>div:last-child{flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:space-between}.modal-content{margin:1rem;padding:1.5rem;width:calc(100% - 2rem)}}.grid-responsive-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.grid-dashboard-layout{display:grid;grid-template-columns:2fr 1fr;gap:1.5rem}@media(max-width:768px){.grid-responsive-cards,.grid-dashboard-layout{grid-template-columns:1fr;gap:1rem}}.report-dropdown-menu{position:absolute;top:100%;right:0;background:#fff;border:1px solid var(--border-color);border-radius:8px;box-shadow:0 4px 6px -1px #0000001a;z-index:50;min-width:200px;margin-top:.5rem;overflow:hidden}.report-dropdown-menu button{display:block;width:100%;padding:.75rem 1rem;text-align:left;background:none;border:none;cursor:pointer;font-size:.875rem;color:var(--text-main);transition:background-color .2s}.report-dropdown-menu button:hover{background-color:#f3f4f6}@media(max-width:768px){.report-dropdown-menu{right:auto;left:0;width:max-content;min-width:180px}}