*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1117;--bg-surface: #1a1d27;--bg-card: #22263a;--border: #2e3250;--text: #e8eaf0;--text-muted: #7c82a0;--accent: #6366f1;--accent-hover: #4f52e0;--sidebar-w: 220px;--radius: 8px;--shadow: 0 2px 12px rgba(0,0,0,.4)}html,body{height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px}#app{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--bg-surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}.sidebar-header{padding:20px 16px;border-bottom:1px solid var(--border)}.logo{font-weight:700;font-size:16px;letter-spacing:-.3px}.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}.nav-link{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:var(--radius);color:var(--text-muted);text-decoration:none;transition:background .15s,color .15s}.nav-link:hover,.nav-link.active{background:#6366f126;color:var(--text)}.nav-link.active{color:#a5b4fc}.icon{font-size:16px}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.user-info{display:flex;align-items:center;gap:10px;margin-bottom:10px}.avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}.user-name{font-size:13px;font-weight:500}.user-role{font-size:11px;color:var(--text-muted);text-transform:capitalize}.btn-logout{width:100%;background:transparent;border:1px solid var(--border);color:var(--text-muted);padding:7px;border-radius:var(--radius);cursor:pointer;transition:all .15s;font-size:13px}.btn-logout:hover{border-color:var(--accent);color:var(--text)}.main-content{flex:1;margin-left:var(--sidebar-w);min-height:100vh;overflow:auto}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;border:none;transition:all .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text-muted)}.btn-ghost:hover{border-color:var(--text-muted);color:var(--text)}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover{background:#dc2626}.btn-sm{padding:5px 10px;font-size:12px}input,textarea,select{background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:var(--radius);padding:8px 12px;font-size:14px;width:100%;font-family:inherit;transition:border-color .15s}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent)}label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:5px;font-weight:500;letter-spacing:.3px;text-transform:uppercase}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:200;display:flex;align-items:flex-start;justify-content:center;padding-top:60px}.modal{background:var(--bg-surface);border:1px solid var(--border);border-radius:12px;width:min(720px,96vw);max-height:85vh;display:flex;flex-direction:column;box-shadow:var(--shadow)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border)}.modal-body{flex:1;overflow-y:auto;padding:20px}.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}.close-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:20px;padding:0 4px}.close-btn:hover{color:var(--text)}