*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0f1117;--bg2:#1a1d27;--bg3:#242836;--bg4:#2e3345;
  --fg:#e4e6f0;--fg2:#a0a5b8;--fg3:#6b7080;
  --accent:#6366f1;--accent2:#818cf8;--accent-bg:rgba(99,102,241,.12);
  --green:#22c55e;--green-bg:rgba(34,197,94,.12);
  --red:#ef4444;--red-bg:rgba(239,68,68,.12);
  --amber:#f59e0b;--amber-bg:rgba(245,158,11,.12);
  --gray:#6b7280;--gray-bg:rgba(107,114,128,.12);
  --border:#2e3345;--radius:8px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --mono:'SF Mono','Fira Code','Cascadia Code',monospace;
}
body{font-family:var(--font);background:var(--bg);color:var(--fg);line-height:1.5;min-height:100vh}
a{color:var(--accent2);text-decoration:none}

/* Layout */
.app{display:flex;height:100vh}
.sidebar{width:280px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}
.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--border)}
.sidebar-header h1{font-size:16px;font-weight:700;color:var(--accent2)}
.sidebar-header p{font-size:11px;color:var(--fg3);margin-top:2px}
.site-list{flex:1;overflow-y:auto;padding:8px}
.site-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius);cursor:pointer;transition:background .15s;font-size:13px}
.site-item:hover{background:var(--bg3)}
.site-item.active{background:var(--accent-bg);color:var(--accent2)}
.site-item .dot{width:8px;height:8px;border-radius:50%;background:var(--fg3);flex-shrink:0}
.site-item.active .dot{background:var(--accent)}
.site-item .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidebar-footer{padding:12px;border-top:1px solid var(--border)}
.main{flex:1;display:flex;flex-direction:column;overflow:hidden}

/* Top bar */
.topbar{display:flex;align-items:center;gap:16px;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--bg2)}
.topbar .site-info{flex:1}
.topbar .site-info .label{font-size:11px;color:var(--fg3);text-transform:uppercase;letter-spacing:.5px}
.topbar .site-info .value{font-size:14px;font-weight:600}
.topbar .badge{font-size:11px;padding:3px 10px;border-radius:20px;font-weight:600}

/* Tabs */
.tab-bar{display:flex;gap:0;border-bottom:1px solid var(--border);background:var(--bg2);padding:0 24px}
.tab-btn{padding:12px 20px;font-size:13px;font-weight:500;color:var(--fg3);cursor:pointer;border:none;background:none;border-bottom:2px solid transparent;transition:all .15s}
.tab-btn:hover{color:var(--fg)}
.tab-btn.active{color:var(--accent2);border-bottom-color:var(--accent)}

/* Content */
.content{flex:1;overflow-y:auto;padding:24px}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* Cards */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.card-header h3{font-size:14px;font-weight:600}
.card-body{padding:20px}

/* Forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-group{display:flex;flex-direction:column;gap:4px}
.form-group.full{grid-column:1/-1}
.form-label{font-size:12px;color:var(--fg2);font-weight:500}
.form-input,.form-select,.form-textarea{background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:8px 12px;font-size:13px;color:var(--fg);font-family:var(--font);transition:border-color .15s;outline:none}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--accent)}
.form-input::placeholder{color:var(--fg3)}
.form-textarea{resize:vertical;min-height:60px}
.form-input.mono{font-family:var(--mono);font-size:12px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;border:none;transition:all .15s;font-family:var(--font)}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent2)}
.btn-success{background:var(--green);color:#fff}.btn-success:hover{opacity:.9}
.btn-danger{background:var(--red);color:#fff}.btn-danger:hover{opacity:.9}
.btn-ghost{background:transparent;color:var(--fg2);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg3);color:var(--fg)}
.btn-sm{padding:5px 10px;font-size:12px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-icon{width:32px;height:32px;padding:0;border-radius:6px}

/* Response panel */
.response-panel{margin-top:16px}
.response-panel pre{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;font-family:var(--mono);font-size:12px;line-height:1.6;overflow-x:auto;max-height:400px;overflow-y:auto;white-space:pre-wrap;word-break:break-word}
.response-meta{display:flex;gap:12px;margin-bottom:8px;font-size:12px}
.response-meta .badge{padding:3px 8px;border-radius:4px;font-weight:600;font-size:11px}
.badge-success{background:var(--green-bg);color:var(--green)}
.badge-error{background:var(--red-bg);color:var(--red)}
.badge-warn{background:var(--amber-bg);color:var(--amber)}
.badge-info{background:var(--accent-bg);color:var(--accent2)}
.badge-gray{background:var(--gray-bg);color:var(--gray)}

/* Callback log */
.cb-list{display:flex;flex-direction:column;gap:8px;max-height:600px;overflow-y:auto}
.cb-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;font-size:12px;cursor:pointer;transition:border-color .15s}
.cb-item:hover{border-color:var(--accent)}
.cb-item .cb-top{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.cb-item .cb-status{font-weight:700;font-size:13px}
.cb-item .cb-time{color:var(--fg3);margin-left:auto;font-family:var(--mono);font-size:11px}
.cb-item .cb-detail{color:var(--fg2);font-family:var(--mono);font-size:11px}
.cb-expanded{margin-top:8px;background:var(--bg2);border-radius:6px;padding:12px;font-family:var(--mono);font-size:11px;white-space:pre-wrap;word-break:break-word;display:none}
.cb-item.open .cb-expanded{display:block}

/* Performance test */
.perf-config{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-bottom:16px}
.perf-progress{margin-top:16px}
.progress-bar-wrap{background:var(--bg);border-radius:20px;height:24px;overflow:hidden;position:relative;margin:8px 0}
.progress-bar{height:100%;background:var(--accent);border-radius:20px;transition:width .3s;min-width:0}
.progress-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--fg)}
.perf-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}
.stat-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;text-align:center}
.stat-card .stat-value{font-size:20px;font-weight:700;color:var(--accent2)}
.stat-card .stat-label{font-size:11px;color:var(--fg3);margin-top:2px}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:100;opacity:0;pointer-events:none;transition:opacity .2s}
.modal-overlay.open{opacity:1;pointer-events:auto}
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:12px;width:480px;max-width:90vw;max-height:90vh;overflow-y:auto}
.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-header h3{font-size:15px;font-weight:600}
.modal-body{padding:20px}
.modal-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

.response-hint{font-size:12px;color:var(--fg2);margin:8px 0 10px;line-height:1.45}

/* Empty state */
.empty{text-align:center;padding:40px;color:var(--fg3)}
.empty .icon{font-size:36px;margin-bottom:8px}
.empty p{font-size:13px}

/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg4);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--fg3)}

/* Actions row */
.actions-row{display:flex;gap:8px;align-items:center;margin-top:16px}
.actions-row .spacer{flex:1}

/* Inline badge counter */
.tab-badge{background:var(--red);color:#fff;font-size:10px;min-width:18px;height:18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;margin-left:4px;padding:0 5px;font-weight:700}