:root{--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-border: #475569;--color-text: #f1f5f9;--color-text-secondary: #94a3b8;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-success: #22c55e;--color-warning: #f59e0b;--color-danger: #ef4444;--radius: 8px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit;font-size:inherit}input,select,textarea{font-family:inherit;font-size:inherit}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--color-bg-secondary);border-right:1px solid var(--color-border);padding:1.5rem 0;display:flex;flex-direction:column}.sidebar-header{padding:0 1.5rem 1.5rem;border-bottom:1px solid var(--color-border);margin-bottom:1rem}.sidebar-header h1{font-size:1.25rem;font-weight:600;color:var(--color-text)}.sidebar-header span{font-size:.75rem;color:var(--color-text-secondary)}.sidebar-nav{flex:1;padding:0 .75rem}.sidebar-nav a{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius);color:var(--color-text-secondary);transition:all .15s}.sidebar-nav a:hover{background:var(--color-bg-tertiary);color:var(--color-text);text-decoration:none}.sidebar-nav a.active{background:var(--color-primary);color:#fff}.sidebar-footer{padding:1rem 1.5rem;border-top:1px solid var(--color-border)}.main-content{flex:1;padding:2rem;overflow-y:auto}.card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.card-title{font-size:1.125rem;font-weight:600}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem}.stat-label{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:.5rem}.stat-value{font-size:2rem;font-weight:700}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--color-border)}th{font-weight:600;color:var(--color-text-secondary);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em}tr:hover td{background:var(--color-bg-tertiary)}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:var(--radius);font-weight:500;transition:all .15s;border:none}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text)}.btn-secondary:hover{background:var(--color-border)}.btn-danger{background:var(--color-danger);color:#fff}.btn-sm{padding:.375rem .75rem;font-size:.875rem}.form-group{margin-bottom:1rem}.form-label{display:block;font-weight:500;margin-bottom:.5rem;color:var(--color-text-secondary)}.form-input{width:100%;padding:.625rem .875rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text)}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f633}.toggle{position:relative;display:inline-block;width:44px;height:24px}.toggle input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background:var(--color-bg-tertiary);border-radius:24px;transition:.2s}.toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:.2s}.toggle input:checked+.toggle-slider{background:var(--color-success)}.toggle input:checked+.toggle-slider:before{transform:translate(20px)}.badge{display:inline-block;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600;text-transform:uppercase}.badge-success{background:#22c55e33;color:var(--color-success)}.badge-warning{background:#f59e0b33;color:var(--color-warning)}.badge-danger{background:#ef444433;color:var(--color-danger)}.badge-info{background:#3b82f633;color:var(--color-primary)}.alert{padding:1rem;border-radius:var(--radius);margin-bottom:1rem}.alert-error{background:#ef444433;border:1px solid var(--color-danger);color:var(--color-danger)}.alert-success{background:#22c55e33;border:1px solid var(--color-success);color:var(--color-success)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:100%;max-width:400px;padding:2rem}.login-title{text-align:center;margin-bottom:2rem}.loading{display:flex;align-items:center;justify-content:center;padding:2rem;color:var(--color-text-secondary)}.spinner{width:24px;height:24px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite;margin-right:.75rem}@keyframes spin{to{transform:rotate(360deg)}}.page-header{margin-bottom:2rem}.page-title{font-size:1.75rem;font-weight:700;margin-bottom:.5rem}.page-subtitle{color:var(--color-text-secondary)}.empty-state{text-align:center;padding:3rem;color:var(--color-text-secondary)}.search-input{max-width:300px;margin-bottom:1rem}.tabs{display:flex;gap:.5rem;border-bottom:1px solid var(--color-border);margin-bottom:1.5rem}.tab{padding:.75rem 1rem;background:none;border:none;color:var(--color-text-secondary);font-weight:500;border-bottom:2px solid transparent;margin-bottom:-1px}.tab:hover{color:var(--color-text)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem;width:100%;max-width:500px;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.modal-title{font-size:1.25rem;font-weight:600}.modal-close{background:none;border:none;color:var(--color-text-secondary);font-size:1.5rem;line-height:1}.modal-footer{display:flex;justify-content:flex-end;gap:.75rem;margin-top:1.5rem}