.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--bg-elevated);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.brand{display:flex;align-items:center;gap:.75rem;padding:1.25rem 1rem;border-bottom:1px solid var(--border)}.brand-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#4f46e5);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}.brand strong{display:block}.brand small{color:var(--text-muted);font-size:.7rem}.nav-section{padding:.75rem .5rem}.nav-label{display:block;padding:.5rem .75rem;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}.nav-link{display:block;padding:.55rem .75rem;border-radius:8px;color:var(--text-muted);text-decoration:none;font-size:.9rem;margin-bottom:2px}.nav-link:hover{background:#ffffff0a;color:var(--text)}.nav-link.active{background:var(--accent-soft);color:var(--accent-hover);font-weight:600}.sidebar-footer{margin-top:auto;padding:1rem;border-top:1px solid var(--border)}.user-chip{display:flex;gap:.65rem;align-items:center;margin-bottom:.75rem}.avatar{width:36px;height:36px;border-radius:50%;background:var(--accent-soft);color:var(--accent-hover);display:flex;align-items:center;justify-content:center;font-weight:700;text-transform:uppercase}.user-name{font-size:.85rem;font-weight:600}.user-email{font-size:.75rem;color:var(--text-muted)}.logout-btn{width:100%}.main-content{flex:1;padding:2rem;max-width:1400px;width:100%}@media(max-width:768px){.app-shell{flex-direction:column}.sidebar{width:100%;height:auto;position:relative}.main-content{padding:1rem}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem}.login-card{width:100%;max-width:420px}.login-brand{text-align:center;margin-bottom:1.5rem}.login-logo{display:inline-flex;width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,var(--accent),#4f46e5);align-items:center;justify-content:center;font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:.75rem}.login-tabs{display:flex;gap:.5rem;margin-bottom:1.25rem;background:var(--bg);padding:4px;border-radius:10px}.login-tabs button{flex:1;padding:.5rem;background:transparent;color:var(--text-muted);border-radius:8px;font-weight:600;border:none;cursor:pointer}.login-tabs button.active{background:var(--bg-card);color:var(--text)}.login-submit{width:100%;margin-top:.5rem;padding:.75rem}.demo-hint{margin-top:1.5rem;padding-top:1.25rem;border-top:1px solid var(--border);font-size:.8rem;color:var(--text-muted);text-align:center}:root{--bg: #0b0f17;--bg-elevated: #121826;--bg-card: #161f2e;--border: #243044;--text: #e8edf5;--text-muted: #8b9bb4;--accent: #6366f1;--accent-hover: #818cf8;--accent-soft: rgba(99, 102, 241, .15);--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--radius: 12px;font-family:DM Sans,system-ui,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(99,102,241,.18),transparent),var(--bg)}button,.btn{font-family:inherit;cursor:pointer;border:none;border-radius:8px;padding:.6rem 1.1rem;font-weight:600;font-size:.9rem}.btn-primary{background:linear-gradient(135deg,var(--accent),#4f46e5);color:#fff}.btn-secondary{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border)}.btn-danger{background:var(--danger);color:#fff}input,select,textarea{width:100%;padding:.65rem .85rem;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-family:inherit}label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:.35rem}.form-group{margin-bottom:1rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--border)}th{color:var(--text-muted);font-size:.8rem;text-transform:uppercase}.badge{display:inline-block;padding:.2rem .55rem;border-radius:999px;font-size:.75rem;font-weight:600}.badge-success{background:#22c55e26;color:var(--success)}.badge-warning{background:#f59e0b26;color:var(--warning)}.badge-muted{background:#8b9bb426;color:var(--text-muted)}.badge-accent{background:var(--accent-soft);color:var(--accent-hover)}.page-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}.page-header h1{font-size:1.75rem;font-weight:700}.page-header p{color:var(--text-muted);margin-top:.25rem}.grid{display:grid;gap:1rem}.grid-2{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.grid-4{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.stat-card .value{font-size:2rem;font-weight:700}.stat-card .label{color:var(--text-muted);font-size:.85rem;margin-top:.25rem}.alert{padding:.85rem 1rem;border-radius:8px;margin-bottom:1rem}.alert-error{background:#ef44441f;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.alert-success{background:#22c55e1f;border:1px solid rgba(34,197,94,.3);color:#86efac}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100;padding:1rem}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;width:100%;max-width:520px;max-height:90vh;overflow-y:auto}.modal-actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:1.25rem}.empty-state,.loading{text-align:center;padding:3rem 1rem;color:var(--text-muted)}