:root{
  --bg:#f5f7f9;
  --panel:#ffffff;
  --ink:#1d2b36;
  --muted:#6b7c8d;
  --line:#e3e9ee;
  --accent:#0f8a4f;
  --accent-dark:#0b6e3f;
  --accent-soft:#e7f5ee;
  --blue:#2563eb;
  --star:#f4b400;
  font-size:15px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Segoe UI",system-ui,-apple-system,Arial,sans-serif;background:var(--bg);color:var(--ink);height:100vh;display:flex;flex-direction:column;overflow:hidden}

/* ===== Top bar ===== */
.topbar{background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:16px;padding:10px 18px;flex-shrink:0}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;white-space:nowrap}
.logo-badge{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg,var(--accent),#15b06a);color:#fff;display:grid;place-items:center;font-size:14px}
.urlbox{flex:1;display:flex;gap:8px;max-width:640px}
.urlbox input{flex:1;border:1px solid var(--line);border-radius:8px;padding:9px 14px;font-size:14px;outline:none;background:#fbfcfd}
.urlbox input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.btn{border:0;border-radius:8px;padding:9px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--ink);border-color:var(--muted)}
.topbar .hint{font-size:12px;color:var(--muted);white-space:nowrap}
.menu-toggle{display:none;background:transparent;border:1px solid var(--line);border-radius:8px;width:36px;height:36px;align-items:center;justify-content:center;cursor:pointer;font-size:16px;flex-shrink:0}

/* ===== Layout ===== */
.shell{display:flex;flex:1;min-height:0}

/* ===== Sidebar ===== */
.sidebar{width:230px;background:var(--panel);border-right:1px solid var(--line);flex-shrink:0;display:flex;flex-direction:column;min-height:0}
.sidebar-list{flex:1;overflow-y:auto;padding:10px 0;min-height:0}
.sidebar-shots{flex-shrink:0;border-top:1px solid var(--line);padding:10px 12px;max-height:200px;overflow-y:auto}
.sidebar-shots h4{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:8px;font-weight:700}
.shot-item{padding:6px 0;border-bottom:1px solid var(--line);cursor:pointer}
.shot-item:last-child{border-bottom:0}
.shot-item .shot-url{display:block;font-size:12px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.shot-item .shot-meta{font-size:11px;color:var(--muted)}
.shot-item:hover .shot-url{color:var(--accent)}
.side-item{display:flex;align-items:center;gap:10px;padding:10px 16px;cursor:pointer;font-weight:600;font-size:14.5px;border-left:3px solid transparent}
.side-item:hover{background:#f0f4f7}
.side-item.active{background:#e9f0f6;border-left-color:var(--blue)}
.side-item .ic{width:20px;text-align:center}
.side-item .count{margin-left:auto;color:var(--muted);font-weight:500;font-size:12.5px}
.side-sub{overflow:hidden}
.side-sub .side-item{padding-left:44px;font-weight:500;font-size:13.5px;border-left:3px solid transparent}
.side-sub .side-item.active{background:var(--blue);color:#fff;border-radius:6px;margin:0 8px;padding-left:36px}
.dot{width:14px;height:14px;border-radius:50%;flex-shrink:0}

/* ===== Main grid view ===== */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.gridwrap{flex:1;overflow:auto;padding:20px 26px}
.os-title{font-size:18px;font-weight:700;margin-bottom:4px}
.os-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.browser-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:18px}
.bcol{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;min-width:0}
.bcol-head{display:flex;align-items:center;gap:8px;font-weight:700;font-size:14px;padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:8px}
.bicon{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:12px;font-weight:700;flex-shrink:0}
.vrow{display:flex;align-items:center;gap:8px;padding:6px 6px;border-radius:7px;cursor:pointer;font-size:13.5px}
.vrow:hover{background:var(--accent-soft)}
.vrow .star{color:#c3ced8;cursor:pointer;font-size:15px;width:18px;flex-shrink:0}
.vrow .star.on{color:var(--star)}
.vrow .vname{flex:1}
.vrow .launch{opacity:0;font-size:11.5px;color:var(--accent);font-weight:700;white-space:nowrap}
.vrow:hover .launch{opacity:1}
.empty-note{color:var(--muted);font-size:14px;padding:40px;text-align:center}

/* ===== Test view ===== */
.testview{flex:1;display:none;flex-direction:column;min-height:0}
.testbar{background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;padding:8px 16px;flex-wrap:wrap;flex-shrink:0}
.testbar .sess{font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px}
.testbar select{border:1px solid var(--line);border-radius:7px;padding:7px 10px;font-size:13px;background:#fbfcfd;outline:none}
.chip{font-size:12px;background:var(--accent-soft);color:var(--accent-dark);border-radius:999px;padding:4px 10px;font-weight:600}
.stage{flex:1;overflow:auto;display:grid;place-items:center;padding:24px;background:
  radial-gradient(circle at 20% 20%, #eef3f6 0, transparent 50%),
  radial-gradient(circle at 80% 80%, #e8eef2 0, transparent 50%), var(--bg)}
.stage.oversized{place-items:start}
.frame-wrap{flex-shrink:0}
.device-frame{background:#111;border-radius:34px;padding:14px;box-shadow:0 24px 60px rgba(20,40,60,.25);position:relative;transition:width .25s,height .25s}
.device-frame.desktop{border-radius:12px;padding:10px;padding-top:26px}
.device-frame.desktop::before{content:"";position:absolute;top:10px;left:14px;width:44px;height:8px;background:
  radial-gradient(circle 4px at 4px 4px,#ff5f57 4px,transparent 4px),
  radial-gradient(circle 4px at 20px 4px,#febc2e 4px,transparent 4px),
  radial-gradient(circle 4px at 36px 4px,#28c840 4px,transparent 4px)}
.device-frame.phone::after{content:"";position:absolute;left:50%;transform:translateX(-50%);top:5px;width:80px;height:5px;border-radius:5px;background:#333}
.device-screen{background:#fff;border-radius:20px;overflow:hidden;width:100%;height:100%}
.device-frame.desktop .device-screen{border-radius:6px}
.device-frame.fullpage.desktop{border-radius:0;padding:0;box-shadow:none;background:transparent}
.device-frame.fullpage.desktop::before{display:none}
.device-frame.fullpage.desktop .device-screen{border-radius:0}
.device-screen iframe{width:100%;height:100%;border:0;display:block}
.blocked{display:none;padding:30px;text-align:center;color:var(--muted);font-size:13.5px;line-height:1.6}
.blocked b{color:var(--ink)}
.blocked a{color:var(--accent);font-weight:600}

/* ===== Bug scanner ===== */
.btn-scan{background:#1d2b36;color:#fff}
.btn-scan:hover{background:#33475a}
.scanview{flex:1;display:none;flex-direction:column;min-height:0}
.scanhead{background:var(--panel);border-bottom:1px solid var(--line);padding:12px 20px;display:flex;align-items:center;gap:12px;flex-shrink:0}
.scanhead h2{font-size:16px}
.scanbody{flex:1;overflow:auto;padding:20px 26px;max-width:900px}
.scan-status{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.finding{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--muted);border-radius:10px;padding:14px 16px;margin-bottom:12px}
.finding.sev-high{border-left-color:#d93025}
.finding.sev-med{border-left-color:#f4b400}
.finding.sev-info{border-left-color:#2563eb}
.finding.sev-ok{border-left-color:var(--accent)}
.finding h3{font-size:14.5px;margin-bottom:4px;display:flex;gap:8px;align-items:center}
.finding .sevtag{font-size:10.5px;font-weight:800;letter-spacing:.5px;border-radius:4px;padding:2px 7px;color:#fff}
.sev-high .sevtag{background:#d93025}.sev-med .sevtag{background:#f4b400}.sev-info .sevtag{background:#2563eb}.sev-ok .sevtag{background:var(--accent)}
.finding p{font-size:13px;color:var(--muted);line-height:1.55}
.finding code{background:#f0f3f6;border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:12px;color:#b3261e;word-break:break-all}
.finding pre{background:#0f1b24;color:#c9e3d5;border-radius:8px;padding:10px 12px;font-size:12px;overflow:auto;margin-top:8px;white-space:pre-wrap;word-break:break-all}

/* ===== Lead gate modal ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(20,30,40,.45);display:flex;align-items:center;justify-content:center;z-index:100}
.modal-box{background:var(--panel);border-radius:14px;padding:24px;width:340px;max-width:90vw;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-box h3{font-size:17px;margin-bottom:4px}
.modal-box input{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14px;outline:none}
.modal-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}

/* ===== Promo strip ===== */
.promo{background:#e6f6ef;border-bottom:1px solid #cfe9dc;padding:8px 18px;font-size:13px;display:flex;align-items:center;gap:10px;flex-shrink:0}
.promo .grow{flex:1}
.promo .btn{padding:6px 14px;font-size:12.5px}

.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(20,30,40,.4);z-index:15}
.sidebar-backdrop.show{display:block}

/* ===== Full page mode: hide site chrome, testbar stays visible by default ===== */
body.fullpage-active .th-header,
body.fullpage-active .promo,
body.fullpage-active .topbar,
body.fullpage-active .sidebar{display:none}
body.fullpage-active .stage{padding:0}

@media(max-width:760px){
  .menu-toggle{display:flex}
  .sidebar{position:absolute;z-index:20;height:100%;transform:translateX(-100%);transition:.2s}
  .sidebar.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.2)}
  .topbar .hint{display:none}
  .topbar{flex-wrap:wrap;row-gap:8px}
  .urlbox{max-width:none;width:100%;flex-wrap:wrap;order:3}
  .urlbox input{flex:1 1 100%}
  .promo{flex-wrap:wrap;row-gap:6px}
  .browser-grid{grid-template-columns:1fr}
}