.layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-sidebar);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;border-bottom:1px solid var(--border)}.sidebar-header h1{font-size:18px;font-weight:700;color:var(--primary)}.sidebar-header span{font-size:12px;color:var(--text-muted)}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 20px;color:var(--text-muted);font-size:14px;transition:all .15s}.nav-item:hover{color:var(--text);background:#ffffff0a}.nav-item.active{color:var(--primary);background:#3b82f61a;border-right:2px solid var(--primary)}.nav-icon{font-size:16px;width:20px;text-align:center}.nav-divider{padding:16px 20px 6px;font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);opacity:.6}.sidebar-footer{padding:16px 20px;border-top:1px solid var(--border)}.user-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:13px}.user-role{background:var(--bg-input);padding:2px 8px;border-radius:4px;font-size:11px;text-transform:uppercase;color:var(--text-muted)}.logout-btn{width:100%;padding:6px;background:transparent;border:1px solid var(--border);border-radius:6px;color:var(--text-muted);font-size:13px;transition:all .15s}.logout-btn:hover{border-color:var(--danger);color:var(--danger)}.main-content{flex:1;margin-left:240px;padding:24px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-form{width:100%;max-width:380px;padding:40px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px}.login-header{text-align:center;margin-bottom:32px}.login-header h1{font-size:28px;font-weight:700;color:var(--primary);margin-bottom:4px}.login-header p{color:var(--text-muted);font-size:14px}.login-error{padding:10px 14px;background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:8px;color:var(--danger);font-size:13px;margin-bottom:16px}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:6px}.form-group input{width:100%;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;transition:border-color .15s}.form-group input:focus{outline:none;border-color:var(--primary)}.login-btn{width:100%;padding:10px;background:var(--primary);border:none;border-radius:8px;color:#fff;font-size:14px;font-weight:600;margin-top:8px;transition:background .15s}.login-btn:hover:not(:disabled){background:var(--primary-hover)}.login-btn:disabled{opacity:.6}.page{max-width:1200px}.page-title{font-size:22px;font-weight:600;margin-bottom:24px}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:20px}.stat-label{font-size:13px;color:var(--text-muted);margin-bottom:8px}.stat-value{font-size:32px;font-weight:700}.stat-value.danger{color:var(--danger)}.stat-value.warning{color:var(--warning)}.stat-value.success{color:var(--success)}.placeholder-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:40px;text-align:center}.placeholder-card p{font-size:14px;margin-bottom:8px}.text-muted{color:var(--text-muted)}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--text-muted)}*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-sidebar: #141620;--bg-input: #1e2130;--border: #2a2d3a;--text: #e4e4e7;--text-muted: #9ca3af;--primary: #3b82f6;--primary-hover: #2563eb;--danger: #ef4444;--warning: #f59e0b;--success: #22c55e;--accent: #8b5cf6}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--primary);text-decoration:none}button{cursor:pointer;font-family:inherit}input,select{font-family:inherit}