*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#6C5CE7;--primary-light:#A29BFE;--accent:#00CEC9;
  --bg:#0B0E11;--bg-card:rgba(20,24,32,0.85);
  --bg-input:rgba(15,18,25,0.8);--text:#E8E6F0;--text-dim:#8B8AA0;
  --text-muted:#5A5872;--border:rgba(108,92,231,0.15);
  --success:#00B894;--danger:#FF6B6B;--warning:#FDCB6E;
  --radius:12px;--radius-sm:8px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --mono:'JetBrains Mono','SFMono-Regular','Consolas',monospace;
  --transition:200ms ease;--glass-bg:rgba(20,24,32,0.6);--glass-border:rgba(255,255,255,0.06)
}
html{font-size:14px}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at 15% 10%,rgba(108,92,231,0.06) 0%,transparent 50%),radial-gradient(ellipse at 85% 85%,rgba(0,206,201,0.04) 0%,transparent 50%);pointer-events:none;z-index:0}
.app{position:relative;z-index:1;max-width:1200px;margin:0 auto}
.header{padding:.75rem 1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem}
.header-brand{display:flex;align-items:center;gap:.6rem}
.header-brand h1{font-size:1rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{font-size:.75rem;color:var(--text-dim)}
.main{padding:1.25rem 1.5rem}
.glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem}
.section-title{font-size:.85rem;font-weight:700;color:var(--primary-light);margin-bottom:.75rem}
.section-header .section-title{margin-bottom:0}
.drop-zone{cursor:pointer;text-align:center;padding:2.5rem;border:2px dashed var(--border);transition:border-color .2s}
.drop-zone.drag-over{border-color:var(--accent)}
.drop-icon{font-size:2.5rem;margin-bottom:.5rem}
.drop-text{font-size:.9rem;font-weight:600;color:var(--text)}
.drop-hint{font-size:.75rem;color:var(--text-muted);margin-top:.25rem}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.6rem}
.stat-card{padding:.5rem .65rem;background:rgba(255,255,255,0.02);border:1px solid var(--glass-border);border-radius:var(--radius-sm)}
.stat-label{font-size:.68rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.15rem}
.stat-value{font-size:1rem;font-weight:700;font-family:var(--mono);color:var(--text)}
.filter-bar{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;padding:.75rem 1rem}
.filter-chips{display:flex;gap:.2rem;flex-wrap:wrap}
.filter-chip{padding:.25rem .5rem;font-size:.72rem;font-weight:600;border:1px solid var(--glass-border);border-radius:99px;background:transparent;color:var(--text-dim);cursor:pointer;transition:all 150ms;font-family:var(--font)}
.filter-chip:hover{border-color:var(--border);color:var(--text)}
.filter-chip.active{background:rgba(108,92,231,0.15);border-color:var(--primary);color:var(--primary-light)}
.input{padding:.35rem .5rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.8rem;font-family:var(--font);flex:1;min-width:150px}
.input:focus{outline:none;border-color:var(--primary)}
.waterfall-header{display:grid;grid-template-columns:2fr 60px 60px 70px 60px 3fr;gap:4px;padding:.4rem .6rem;font-size:.68rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border)}
.waterfall-body{max-height:500px;overflow-y:auto}
.wf-row{display:grid;grid-template-columns:2fr 60px 60px 70px 60px 3fr;gap:4px;padding:.35rem .6rem;font-size:.78rem;border-bottom:1px solid var(--glass-border);align-items:center;cursor:pointer;transition:background 100ms}
.wf-row:hover{background:rgba(108,92,231,0.05)}
.wf-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-dim);font-family:var(--mono);font-size:.72rem}
.wf-status{font-family:var(--mono);font-size:.72rem}
.wf-status.s2{color:var(--success)}.wf-status.s3{color:var(--warning)}.wf-status.s4,.wf-status.s5{color:var(--danger)}
.wf-type{font-size:.68rem;color:var(--text-muted)}
.wf-size{font-family:var(--mono);font-size:.72rem;color:var(--text-dim)}
.wf-time{font-family:var(--mono);font-size:.72rem;color:var(--text-dim)}
.wf-bar{position:relative;height:14px}
.wf-bar-inner{position:absolute;top:2px;height:10px;border-radius:3px;min-width:2px}
.wf-bar-dns{background:rgba(253,203,110,0.6)}
.wf-bar-connect{background:rgba(0,206,201,0.6)}
.wf-bar-ttfb{background:rgba(108,92,231,0.7)}
.wf-bar-download{background:rgba(0,184,148,0.7)}
.detail-panel{position:sticky;top:1rem}
.detail-tabs{display:flex;gap:.2rem;margin-bottom:.75rem}
.detail-tab{padding:.3rem .6rem;font-size:.75rem;font-weight:600;border:1px solid var(--glass-border);border-radius:var(--radius-sm);background:transparent;color:var(--text-dim);cursor:pointer;transition:all 150ms;font-family:var(--font)}
.detail-tab.active{background:rgba(108,92,231,0.15);border-color:var(--primary);color:var(--primary-light)}
.detail-content{font-family:var(--mono);font-size:.78rem;color:var(--text-dim);max-height:350px;overflow-y:auto;white-space:pre-wrap;word-break:break-all;line-height:1.5}
.detail-content table{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:.75rem}
.detail-content td{padding:.2rem .4rem;border-bottom:1px solid var(--glass-border);vertical-align:top}
.detail-content td:first-child{color:var(--primary-light);font-weight:600;width:30%;white-space:nowrap}
.timing-bar{display:flex;align-items:center;gap:.35rem;margin-bottom:.3rem}
.timing-bar-label{font-size:.72rem;width:70px;color:var(--text-dim)}
.timing-bar-bar{height:14px;border-radius:3px;min-width:2px}
.timing-bar-val{font-size:.72rem;font-family:var(--mono);color:var(--text-muted)}
.hidden{display:none !important}
.btn{display:inline-flex;align-items:center;gap:.25rem;padding:.4rem .75rem;border:none;border-radius:var(--radius-sm);font-size:.78rem;font-weight:600;font-family:var(--font);cursor:pointer;transition:all var(--transition)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff}
.btn-primary:hover{transform:translateY(-1px)}
.btn-accent{background:rgba(0,206,201,0.15);color:var(--accent);border:1px solid rgba(0,206,201,0.2)}
.btn-accent:hover{background:rgba(0,206,201,0.25)}
.btn-ghost{background:transparent;color:var(--text-dim)}
.btn-ghost:hover{color:var(--text);background:rgba(255,255,255,0.05)}
.btn-sm{font-size:.72rem;padding:.25rem .45rem}
.footer{padding:1rem 1.5rem;text-align:center;font-size:.72rem;color:var(--text-muted);border-top:1px solid var(--border)}
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;display:flex;flex-direction:column;gap:.4rem}
.toast{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--accent);backdrop-filter:blur(20px);border-radius:var(--radius-sm);padding:.6rem .8rem;font-size:.78rem;color:var(--text);box-shadow:0 8px 40px rgba(0,0,0,0.4);animation:slideIn 300ms ease;max-width:300px}
::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(108,92,231,0.25);border-radius:3px}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
@media(max-width:768px){.waterfall-header,.wf-row{grid-template-columns:1fr 50px 50px 60px;}.wf-bar,.wf-time{display:none}}