:root{--primary: #2563eb;--primary-dark: #1d4ed8;--secondary: #64748b;--success: #16a34a;--warning: #d97706;--danger: #dc2626;--background: #f8fafc;--surface: #ffffff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--sidebar-width: 250px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--background);color:var(--text);line-height:1.6}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:#1e293b;color:#fff;position:fixed;height:100vh;overflow-y:auto}.sidebar-header{padding:1.5rem;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-header h2{font-size:1.2rem;font-weight:700}.sidebar-header small{color:#94a3b8;font-size:.75rem}.sidebar-nav{padding:1rem 0}.sidebar-nav a{display:flex;align-items:center;gap:.75rem;padding:.75rem 1.5rem;color:#cbd5e1;text-decoration:none;transition:all .2s}.sidebar-nav a:hover,.sidebar-nav a.active{background:#ffffff1a;color:#fff}.sidebar-nav a .icon{width:20px;text-align:center}.main-content{margin-left:var(--sidebar-width);flex:1;padding:2rem}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.page-header h1{font-size:1.75rem;font-weight:700}.card{background:var(--surface);border:1px solid var(--border);border-radius:.75rem;padding:1.5rem;margin-bottom:1rem}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--border)}th{background:#f8fafc;font-weight:600;font-size:.875rem;color:var(--text-muted)}tr:hover{background:#f8fafc}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border:none;border-radius:.5rem;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{background:#f8fafc}.btn-sm{padding:.25rem .75rem;font-size:.8rem}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.375rem;font-size:.875rem;font-weight:500;color:var(--text)}.form-control{width:100%;padding:.5rem .75rem;border:1px solid var(--border);border-radius:.5rem;font-size:.875rem;transition:border-color .2s}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}select.form-control{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");background-position:right .5rem center;background-repeat:no-repeat;background-size:1.5em 1.5em;padding-right:2.5rem}.badge{display:inline-flex;align-items:center;padding:.25rem .625rem;border-radius:9999px;font-size:.75rem;font-weight:500}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.badge-secondary{background:#f1f5f9;color:#475569}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:.75rem;padding:1.5rem}.stat-card .label{font-size:.875rem;color:var(--text-muted);margin-bottom:.5rem}.stat-card .value{font-size:2rem;font-weight:700}.stat-card .subtext{font-size:.8rem;color:var(--text-muted);margin-top:.25rem}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#1e3a8a,#2563eb)}.login-card{background:#fff;border-radius:1rem;padding:2.5rem;width:100%;max-width:400px;box-shadow:0 25px 50px -12px #00000040}.login-card h1{text-align:center;margin-bottom:.5rem;color:var(--primary)}.login-card .subtitle{text-align:center;color:var(--text-muted);margin-bottom:2rem}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal{background:#fff;border-radius:.75rem;padding:2rem;width:90%;max-width:600px;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}@media(max-width:768px){.sidebar{transform:translate(-100%)}.main-content{margin-left:0}.stats-grid{grid-template-columns:1fr}}