*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
img{max-width:100%;height:auto}
:root{
  --bg:#0c0e14;--bg2:#10131b;--bg3:#161a26;
  --border:rgba(255,255,255,.07);--border2:rgba(255,255,255,.12);
  --accent:#4f8ef7;--accent2:#2563eb;--accent-dim:rgba(79,142,247,.12);
  --text:#dde2ef;--text2:#8892aa;--text3:#4f5875;
  --green:#22c55e;--red:#f87171;--amber:#fbbf24;
  --font-head:'Syne',sans-serif;--font-body:'DM Sans',sans-serif;--font-mono:'DM Mono',monospace;
  --radius:10px;--sidebar-w:210px;
}
html{font-size:16px} /* 10pt ≈ 13.3px; 16px base gives readable 13-14px body text */

/* Table sort & export */
.panel-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.panel-title{font-family:var(--font-head);font-size:14px;font-weight:500;color:var(--text);flex:1}
.panel-count{font-size:12px;color:var(--text3);font-family:var(--font-mono)}
.export-btn{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;background:var(--bg3);border:1px solid var(--border2);border-radius:6px;color:var(--text2);font-size:12px;font-family:var(--font-body);cursor:pointer;transition:all .13s;white-space:nowrap}
.export-btn:hover{background:var(--accent-dim);border-color:rgba(79,142,247,.3);color:var(--accent)}
th.sortable{cursor:pointer;user-select:none;white-space:nowrap}
th.sortable:hover{color:var(--text)}
th.sortable .sort-icon{display:inline-block;margin-left:4px;opacity:.4;font-size:10px}
th.sortable.asc .sort-icon::after{content:'↑';opacity:1}
th.sortable.desc .sort-icon::after{content:'↓';opacity:1}
th.sortable:not(.asc):not(.desc) .sort-icon::after{content:'↕'}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);height:100dvh;overflow:hidden}
.app{display:flex;height:100dvh;overflow:hidden}

/* Sidebar */
.sidebar{width:var(--sidebar-w);background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;transition:transform .25s}
.sidebar-top{flex:1;overflow-y:auto}
.brand{display:flex;align-items:center;gap:10px;padding:18px 16px 14px;border-bottom:1px solid var(--border);margin-bottom:8px}
.brand-mark{display:none}
.brand-logo{width:32px;height:32px;border-radius:6px;object-fit:cover;flex-shrink:0;display:block}
.topbar-logo{width:32px;height:32px;border-radius:6px;object-fit:cover;flex-shrink:0;display:block}
.welcome-icon img,.content img:not(.brand-logo):not(.topbar-logo){max-width:100%;height:auto}
.brand-name{font-family:var(--font-head);font-weight:600;font-size:15px;color:var(--text);letter-spacing:-.3px}
.sidebar-nav{padding:4px 8px}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border-radius:7px;border:none;background:transparent;color:var(--text2);font-family:var(--font-body);font-size:13px;cursor:pointer;text-align:left;transition:all .13s;margin-bottom:2px}
.nav-item:hover{background:var(--bg3);color:var(--text)}
.nav-item.active{background:var(--accent-dim);color:var(--accent)}
.nav-icon{width:16px;height:16px;flex-shrink:0}
.sidebar-bottom{padding:12px;border-top:1px solid var(--border)}
.conn-status{display:flex;align-items:center;gap:7px;padding:7px 10px;background:var(--bg3);border-radius:7px;font-size:11px;color:var(--text2);font-family:var(--font-mono)}
.conn-dot{width:7px;height:7px;border-radius:50%;background:var(--text3);transition:background .3s;flex-shrink:0}
.conn-dot.live{background:var(--green);box-shadow:0 0 6px rgba(34,197,94,.5)}

/* Main */
.main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}
.topbar{padding:12px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;background:var(--bg2);flex-shrink:0}
.menu-btn{display:none;flex-direction:column;gap:4px;padding:6px;border:none;background:transparent;cursor:pointer;border-radius:6px}
.menu-btn span{display:block;width:18px;height:1.5px;background:var(--text2);border-radius:2px}
.search-row{display:flex;gap:8px;flex:1;max-width:600px}
.search-input{flex:1;padding:9px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:var(--font-body);font-size:13px;transition:border-color .15s}
.search-input:focus{outline:none;border-color:var(--accent)}
.search-input::placeholder{color:var(--text3)}
.search-btn{padding:9px 22px;background:var(--accent);border:none;border-radius:8px;color:#fff;font-family:var(--font-body);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap}
.search-btn:hover{background:var(--accent2)}
.search-btn:disabled{opacity:.5;cursor:not-allowed}

/* Content */
.content{flex:1;overflow-y:auto;padding:24px}
.content::-webkit-scrollbar{width:4px}
.content::-webkit-scrollbar-thumb{background:var(--border2);border-radius:4px}

/* Welcome */
.welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;text-align:center;gap:16px}
.welcome-icon{width:60px;height:60px;animation:spin-slow 20s linear infinite}
@keyframes spin-slow{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.welcome h1{font-family:var(--font-head);font-size:32px;font-weight:700;color:var(--text);letter-spacing:-1px}
.welcome p{color:var(--text2);font-size:13px;line-height:1.7}
.quick-pills{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.pill{padding:6px 14px;background:var(--bg2);border:1px solid var(--border);border-radius:20px;font-size:12px;color:var(--text2);cursor:pointer;transition:all .15s;font-family:var(--font-body)}
.pill:hover{border-color:var(--accent);color:var(--accent)}

/* Cards */
.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:24px}
.metric-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.metric-label{font-size:11px;color:var(--text3);letter-spacing:.5px;margin-bottom:8px;text-transform:uppercase;font-family:var(--font-mono)}
.metric-value{font-size:22px;font-weight:600;color:var(--text);font-family:var(--font-mono)}
.metric-sub{font-size:11px;color:var(--text3);margin-top:4px}

.panel{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden}
.panel-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.panel-title{font-family:var(--font-head);font-size:14px;font-weight:500;color:var(--text)}
.panel-count{font-size:12px;color:var(--text3);font-family:var(--font-mono)}

table{width:100%;border-collapse:collapse}
th{text-align:left;padding:8px 14px;font-size:11px;color:var(--text3);border-bottom:1px solid var(--border);font-weight:400;text-transform:uppercase;letter-spacing:.5px;font-family:var(--font-mono)}
td{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.04);font-size:13.3px;color:var(--text)}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,.02)}
.td-muted{color:var(--text2)}
.td-accent{color:var(--accent)}
.td-url{color:var(--accent);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500;font-family:var(--font-mono)}
.badge-green{background:rgba(34,197,94,.12);color:var(--green)}
.badge-red{background:rgba(248,113,113,.12);color:var(--red)}
.badge-amber{background:rgba(251,191,36,.12);color:var(--amber)}
.badge-blue{background:var(--accent-dim);color:var(--accent)}

.diff-wrap{display:flex;align-items:center;gap:8px}
.diff-bar{height:4px;width:70px;background:var(--bg3);border-radius:2px;overflow:hidden;flex-shrink:0}
.diff-fill{height:100%;border-radius:2px}
.diff-easy{background:var(--green)}
.diff-med{background:var(--amber)}
.diff-hard{background:var(--red)}

.loading{display:flex;align-items:center;gap:12px;padding:40px;justify-content:center;color:var(--text2);font-family:var(--font-body)}
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}

.error-box{background:rgba(248,113,113,.08);border:1px solid rgba(248,113,113,.2);border-radius:var(--radius);padding:16px 20px;color:var(--red);font-size:13px;margin-bottom:16px}

@media(max-width:768px){
  .sidebar{position:fixed;top:0;left:0;height:100%;transform:translateX(-100%);z-index:50}
  .sidebar.open{transform:translateX(0);box-shadow:4px 0 24px rgba(0,0,0,.5)}
  .menu-btn{display:flex}
  .metrics-grid{grid-template-columns:1fr 1fr}
  td,th{padding:8px 10px}
}
/* Login screen */
.login-screen{position:fixed;inset:0;background:var(--bg);display:flex;align-items:center;justify-content:center;z-index:999;flex-direction:column;gap:24px}
.login-box{background:var(--bg2);border:1px solid var(--border2);border-radius:14px;padding:36px 40px;width:100%;max-width:380px;display:flex;flex-direction:column;gap:18px}
.login-logo{width:56px;height:56px;border-radius:10px;object-fit:cover;margin:0 auto 4px}
.login-title{font-family:var(--font-head);font-size:20px;font-weight:600;color:var(--text);text-align:center}
.login-sub{font-size:13px;color:var(--text2);text-align:center;margin-top:-8px}
.login-input{padding:10px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:var(--font-body);font-size:14px;width:100%;transition:border-color .15s}
.login-input:focus{outline:none;border-color:var(--accent)}
.login-input::placeholder{color:var(--text3)}
.login-btn{padding:11px;background:var(--accent);border:none;border-radius:8px;color:#fff;font-family:var(--font-body);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s}
.login-btn:hover{background:var(--accent2)}
.login-err{font-size:12px;color:var(--red);text-align:center;min-height:16px}
/* Back button */
.back-btn{display:none;align-items:center;gap:6px;padding:6px 10px;border:none;background:var(--bg3);border-radius:6px;color:var(--text2);font-size:12px;font-family:var(--font-body);cursor:pointer;transition:all .13s;white-space:nowrap;flex-shrink:0}
.back-btn:hover{background:var(--border2);color:var(--text)}
.back-btn.visible{display:flex}
/* Clickable brand */
.brand{cursor:pointer}
.brand:hover .brand-name{color:var(--accent)}