:root{
  --bg:#08111b; --bg2:#0d1726; --panel:#101b2a; --panel2:#0b1420; --line:#22354d;
  --text:#eef6ff; --muted:#8ea4c3; --accent:#34d8c3; --accent2:#35a8ff; --good:#27c282;
  --shadow:0 22px 50px rgba(0,0,0,.28);
}
body.theme-light{
  --bg:#edf3fb; --bg2:#f8fbff; --panel:#ffffff; --panel2:#f7faff; --line:#d7e4f1;
  --text:#102033; --muted:#677b96; --accent:#06b6a3; --accent2:#1593ff; --good:#0d9f6e;
  --shadow:0 18px 44px rgba(15,23,42,.08);
}
html,body{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at top left,var(--bg2),var(--bg) 38%);color:var(--text)}
a{text-decoration:none;color:inherit}button,input,textarea{font:inherit}*{box-sizing:border-box}
body.layout-boxed .site-wrap,body.layout-boxed .receiver-shell{max-width:1540px} body.layout-full .site-wrap,body.layout-full .receiver-shell{max-width:none}
.site-wrap,.receiver-shell{margin:0 auto;padding:18px 22px 28px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
.brand-block{display:flex;align-items:center;gap:14px}.brand-mark{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;color:#03131c;font-size:13px;font-weight:900;box-shadow:var(--shadow)}
.brand-text{display:grid;gap:4px}.eyebrow{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:900}.title{font-size:28px;font-weight:900;line-height:1}.sub{font-size:14px;color:var(--muted)}
.topbar-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.status-chip,.nav-btn,.icon-btn,.accent-btn,.ghost-btn,.pill-btn{height:44px;padding:0 15px;border-radius:15px;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));color:var(--text);display:inline-flex;align-items:center;justify-content:center;gap:9px;cursor:pointer;box-shadow:var(--shadow);transition:.2s ease}
.icon-btn{width:44px;padding:0}.accent-btn{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#04121a;border-color:transparent;font-weight:800}
.nav-btn:hover,.icon-btn:hover,.accent-btn:hover,.ghost-btn:hover,.pill-btn:hover{transform:translateY(-1px)}
.status-chip{font-weight:800;background:rgba(52,216,195,.09)}.status-chip::before{content:"";width:9px;height:9px;border-radius:999px;background:var(--muted)}.status-chip.online::before{background:var(--good);box-shadow:0 0 0 6px rgba(39,194,130,.14)}
.tooltip{position:relative}.tooltip:hover::after{content:attr(data-tip);position:absolute;left:50%;transform:translateX(-50%);bottom:calc(100% + 10px);background:#031019;color:#e6fbf7;border:1px solid rgba(52,216,195,.25);padding:8px 10px;border-radius:10px;white-space:nowrap;font-size:12px;z-index:40}body.theme-light .tooltip:hover::after{background:#0f172a;color:#fff}
.studio-shell{display:grid;grid-template-columns:84px 1fr;gap:18px;align-items:start}.sidebar{position:sticky;top:18px;padding:12px;border-radius:24px;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),var(--panel2));box-shadow:var(--shadow);display:grid;gap:12px}.side-link{width:58px;height:58px;border-radius:18px;border:1px solid var(--line);display:grid;place-items:center;background:rgba(255,255,255,.02);font-size:24px;box-shadow:var(--shadow)}.side-link.active{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#04121a;border-color:transparent}.side-spacer{height:4px}
.panel{border:1px solid var(--line);border-radius:26px;background:linear-gradient(180deg,var(--panel),var(--panel2));box-shadow:var(--shadow)}
.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 20px 0}.section-head h2{margin:0;font-size:22px}.section-head p{margin:5px 0 0;font-size:13px;color:var(--muted)}
.metrics{display:flex;flex-wrap:wrap;gap:10px}.metric{min-width:108px;padding:12px 14px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.02)}.metric .k{display:block;font-size:12px;color:var(--muted)}.metric .v{display:block;font-size:20px;font-weight:900}
.hidden-url{position:absolute !important;left:-99999px !important;width:1px !important;height:1px !important;opacity:0 !important;pointer-events:none !important}
.qr-modal,.panel-modal{position:fixed;inset:0;background:rgba(4,10,18,.68);display:none;align-items:center;justify-content:center;padding:20px;z-index:60}.qr-modal.open,.panel-modal.open{display:flex}
.qr-box-wrap,.panel-box{width:min(94vw,440px);background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}.qr-frame{display:grid;place-items:center;min-height:240px;background:#fff;border-radius:20px;padding:16px;border:1px solid var(--line)}.qr-frame canvas,.qr-frame img{max-width:100%;height:auto}
.panel-box{width:min(96vw,1320px)}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.panel-head h3{margin:0;font-size:24px}.panel-stage{aspect-ratio:16/9;background:#000;border-radius:20px;overflow:hidden;border:1px solid var(--line)}.panel-stage iframe{display:block;width:100%;height:100%;border:0;background:#000}
@media (max-width:1120px){.studio-shell{grid-template-columns:1fr}.sidebar{position:static;grid-auto-flow:column;justify-content:start;overflow:auto}.side-link{width:52px;height:52px}.topbar{flex-direction:column;align-items:stretch}.topbar-actions{justify-content:space-between}}
@media (max-width:760px){.site-wrap,.receiver-shell{padding:14px}.title{font-size:23px}.brand-mark{width:42px;height:42px;border-radius:14px}}