:root{--bg: #f5f5f5;--card: #ffffff;--text: #1a1a1a;--text-secondary: #666;--border: #e0e0e0;--primary: #4f46e5;--primary-hover: #4338ca;--success: #16a34a;--danger: #dc2626;--warning: #d97706;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.btn{padding:8px 16px;border:none;border-radius:var(--radius);cursor:pointer;font-size:14px;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--primary)}.card{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:0 1px 3px #0000000f}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:500}.badge-green{background:#dcfce7;color:var(--success)}.badge-red{background:#fee2e2;color:var(--danger)}.badge-blue{background:#dbeafe;color:#2563eb}.badge-amber{background:#fef3c7;color:var(--warning)}table{width:100%;border-collapse:collapse}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--text-secondary);font-size:13px}.layout{display:flex;min-height:100vh}.sidebar{width:220px;background:#1e1e2e;color:#cdd6f4;padding:20px 0;flex-shrink:0;position:relative;overflow:hidden;transition:width .3s ease,padding .3s ease}.sidebar.collapsed{width:0;padding:20px 0}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:0 12px 20px 20px}.sidebar-logo{padding:0;font-size:18px;font-weight:700;color:#fff;white-space:nowrap}.sidebar-collapse-btn{background:transparent;border:none;color:#cdd6f4;font-size:18px;line-height:1;cursor:pointer;padding:4px 8px;border-radius:4px;transition:all .2s}.sidebar-collapse-btn:hover{background:#313244;color:#fff}.sidebar-expand-btn{position:fixed;top:16px;left:16px;z-index:1000;width:38px;height:38px;border:none;border-radius:6px;background:#1e1e2e;color:#cdd6f4;font-size:18px;line-height:1;cursor:pointer;box-shadow:0 1px 4px #0000004d;transition:all .2s}.sidebar-expand-btn:hover{background:#313244;color:#fff}.sidebar-item{display:block;padding:10px 20px;color:#cdd6f4;transition:all .2s;white-space:nowrap}.sidebar-item:hover,.sidebar-item.active{background:#313244;color:#fff;text-decoration:none}.main{flex:1;padding:24px 32px;overflow-y:auto}.page-title{font-size:22px;font-weight:600;margin-bottom:20px}.auth-container{display:flex;align-items:center;justify-content:center;min-height:100vh}.auth-card{width:400px}.auth-tabs{display:flex;gap:0;margin-bottom:20px}.auth-tab{flex:1;text-align:center;padding:10px;cursor:pointer;border-bottom:2px solid transparent}.auth-tab.active{border-color:var(--primary);color:var(--primary);font-weight:600}.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:4px;font-weight:500;font-size:13px}.toast{position:fixed;top:20px;right:20px;z-index:9999;padding:12px 20px;border-radius:var(--radius);color:#fff;animation:slideIn .3s ease}.toast-success{background:var(--success)}.toast-error{background:var(--danger)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.gap-2{gap:8px}.gap-4{gap:16px}.text-sm{font-size:12px}.text-secondary{color:var(--text-secondary)}.mono{font-family:SF Mono,Monaco,monospace}