/**
 * @File:   app.css
 * @Author: Haozhe Xie
 * @Date:   2026-07-17 00:00:00
 * @Last Modified by: Haozhe Xie
 * @Last Modified at: 2026-07-18 12:00:00
 * @Email:  root@haozhexie.com
 */

/* ---------- Design tokens (ported from the mock; fonts self-hosted) ------ */
/* The mock referenced Google Fonts (Inter / Space Grotesk / JetBrains Mono).
   This service avoids external requests, so we map them onto system stacks. */
:root {
  --font-sans: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ---------- LIGHT (default) ---------- */
:root {
  --bg-0:#eef1f7; --bg-1:#ffffff; --panel:rgba(255,255,255,.62); --panel-brd:rgba(20,40,90,.10);
  --panel-hi:rgba(255,255,255,.6); --text:#111a2e; --text-2:#4a566e; --text-3:#8a95ac;
  --accent:#e74c3c; --accent-2:#f0836b; --accent-soft:rgba(231,76,60,.10);
  --land:rgba(60,40,40,.10); --land-brd:rgba(80,45,40,.20); --graticule:rgba(80,45,40,.05);
  --dot:#e74c3c; --dot-hot:#db2777; --good:#059669; --grid-glow:rgba(231,76,60,.3);
  --sheen:radial-gradient(1100px 700px at 78% -12%, rgba(231,76,60,.10), transparent 60%),radial-gradient(900px 600px at 6% 112%, rgba(231,76,60,.07), transparent 55%);
  color-scheme: light;
}

/* ---------- DARK ---------- */
/* Dark palette, shared by an explicit stamp and the OS preference. */
[data-theme="dark"] {
  --bg-0:#000000; --bg-1:#0a0a0c; --panel:rgba(20,20,24,.62); --panel-brd:rgba(255,255,255,.10);
  --panel-hi:rgba(255,255,255,.05); --text:#f3f4f6; --text-2:#a1a1aa; --text-3:#6b7280;
  --accent:#e74c3c; --accent-2:#f0836b; --accent-soft:rgba(231,76,60,.16);
  --land:rgba(255,255,255,.07); --land-brd:rgba(255,255,255,.12); --graticule:rgba(255,255,255,.04);
  --dot:#e74c3c; --dot-hot:#f0abfc; --good:#34d399; --grid-glow:rgba(231,76,60,.4);
  --sheen:radial-gradient(1200px 700px at 72% -10%, rgba(231,76,60,.10), transparent 60%),radial-gradient(900px 600px at 10% 110%, rgba(231,76,60,.08), transparent 55%);
  color-scheme: dark;
}

/* Follow the OS in dark unless a manual light stamp overrides it. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-0:#000000; --bg-1:#0a0a0c; --panel:rgba(20,20,24,.62); --panel-brd:rgba(255,255,255,.10);
    --panel-hi:rgba(255,255,255,.05); --text:#f3f4f6; --text-2:#a1a1aa; --text-3:#6b7280;
    --accent:#e74c3c; --accent-2:#f0836b; --accent-soft:rgba(231,76,60,.16);
    --land:rgba(255,255,255,.07); --land-brd:rgba(255,255,255,.12); --graticule:rgba(255,255,255,.04);
    --dot:#e74c3c; --dot-hot:#f0abfc; --good:#34d399; --grid-glow:rgba(231,76,60,.4);
    --sheen:radial-gradient(1200px 700px at 72% -10%, rgba(231,76,60,.10), transparent 60%),radial-gradient(900px 600px at 10% 110%, rgba(231,76,60,.08), transparent 55%);
    color-scheme: dark;
  }
}

*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  font-family:var(--font-sans); color:var(--text);
  background:var(--bg-0); background-image:var(--sheen);
  min-height:100vh; overflow-x:hidden; -webkit-font-smoothing:antialiased;
  font-size:14px;
  transition:background-color .5s ease, color .4s ease;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-2)}
.wrap{max-width:1440px;margin:0 auto;padding:22px 26px 34px;display:flex;flex-direction:column;gap:18px}

/* top bar */
.topbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.logo{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;position:relative}
.logo svg{width:34px;height:34px}
.brand h1{font-family:var(--font-sans);font-size:17px;font-weight:600;margin:0;letter-spacing:-.01em}
.brand p{margin:1px 0 0;font-size:11.5px;color:var(--text-3);font-family:var(--font-mono)}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--good);animation:beat 2s infinite}
@keyframes beat{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--good) 55%,transparent)}70%{box-shadow:0 0 0 7px transparent}100%{box-shadow:0 0 0 0 transparent}}

/* site selector (styled to blend with the pills) */
.site-wrap{position:relative;display:inline-flex}
.site-wrap[hidden]{display:none}
.site-select{
  appearance:none;-webkit-appearance:none;
  font:500 12.5px var(--font-sans);color:var(--text-2);
  background:var(--panel);border:1px solid var(--panel-brd);
  padding:7px 30px 7px 14px;border-radius:100px;cursor:pointer;backdrop-filter:blur(14px);
  background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);
  background-position:calc(100% - 16px) 52%,calc(100% - 11px) 52%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.site-select:hover{color:var(--text)}

.toggle{display:flex;gap:4px;background:var(--panel);border:1px solid var(--panel-brd);padding:4px;border-radius:12px;backdrop-filter:blur(14px)}
.toggle button{border:0;background:transparent;color:var(--text-2);font:500 12px var(--font-sans);
  padding:7px 12px;border-radius:8px;cursor:pointer;transition:.2s;display:flex;align-items:center;gap:6px}
.toggle button svg{width:14px;height:14px}
.toggle button:hover{color:var(--text)}
.toggle button.on{background:var(--accent-soft);color:var(--text)}

/* demo notice (dismissible; the mock lacks it) */
.notice{display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--panel);border:1px solid var(--panel-brd);border-radius:12px;
  padding:9px 15px;color:var(--text-2);font-size:12.5px;backdrop-filter:blur(14px)}
.notice button{border:0;background:transparent;color:var(--text-3);font-size:17px;line-height:1;cursor:pointer;padding:2px 4px}
.notice button:hover{color:var(--text)}

/* glass panel */
.panel{position:relative;background:var(--panel);border:1px solid var(--panel-brd);border-radius:20px;
  backdrop-filter:blur(22px) saturate(1.2);-webkit-backdrop-filter:blur(22px) saturate(1.2);
  box-shadow:0 24px 60px -34px rgba(10,20,50,.5), inset 0 1px 0 var(--panel-hi);overflow:hidden}
.panel::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.05),transparent 30%);mix-blend-mode:overlay}
.p-head{display:flex;align-items:center;gap:10px;padding:15px 18px 0}
.p-head h2{margin:0;font:600 13px var(--font-sans);letter-spacing:.02em}
.p-head .tag{margin-left:auto;font:500 10.5px var(--font-mono);color:var(--text-3);text-transform:uppercase;letter-spacing:.08em}

/* layout */
.grid{display:grid;grid-template-columns:1fr 356px;gap:18px;align-items:start}
.leftcol{display:flex;flex-direction:column;gap:18px;min-width:0}
@media(max-width:1080px){.grid{grid-template-columns:1fr}}

/* map */
.map-top{display:flex;align-items:flex-start;gap:16px;padding:18px 20px 6px;flex-wrap:wrap}
.map-top .headline{margin-right:auto}
.map-top .headline .k{display:flex;align-items:center;gap:10px;font:600 12px var(--font-sans);letter-spacing:.03em;color:var(--text-2)}
.range{display:flex;gap:2px;background:var(--panel-hi);border:1px solid var(--panel-brd);border-radius:9px;padding:3px}
.range button{border:0;background:transparent;color:var(--text-3);font:500 11px var(--font-mono);padding:4px 9px;border-radius:6px;cursor:pointer;transition:.18s}
.range button:hover{color:var(--text-2)}
.range button.on{background:var(--accent);color:#fff}
.map-top .headline .v{font:700 34px var(--font-sans);letter-spacing:-.02em;line-height:1.05;margin-top:8px}
.map-top .headline .v small{font-size:15px;font-weight:500;color:var(--text-3)}
.mini-stats{display:flex;gap:24px}
.mini-stats .m .k{font:500 11px var(--font-mono);color:var(--text-3);text-transform:uppercase;letter-spacing:.06em}
.mini-stats .m .v{font:600 20px var(--font-sans);margin-top:3px}
.mini-stats .m .v i{font-style:normal;font-size:12px;color:var(--good);margin-left:5px}
/* today-vs-yesterday delta under the "Today" stat (mirrors .stat .d colours) */
.mini-stats .m .md{font-size:11px;margin-top:4px;color:var(--text-2)}
.mini-stats .m .md b{color:var(--good);font-weight:600}
.mini-stats .m .md b.down{color:var(--accent)}
.mapbox{position:relative;width:100%;aspect-ratio:960/500}
#map{width:100%;height:100%;display:block}
.geo-grat{fill:none;stroke:var(--graticule);stroke-width:.5}
.geo-sphere{fill:transparent;stroke:var(--panel-brd);stroke-width:.8}
.pt{cursor:pointer}
.pt .core{fill:var(--dot);filter:drop-shadow(0 0 4px var(--dot))}
.pt.hot .core{fill:var(--dot-hot);filter:drop-shadow(0 0 6px var(--dot-hot))}
.pt .ring{fill:none;stroke:var(--dot);stroke-width:1.1;opacity:0;transform-origin:center;transform-box:fill-box}
.pt.hot .ring{stroke:var(--dot-hot)}
@keyframes pulse{0%{opacity:.65;transform:scale(.4)}80%{opacity:0;transform:scale(2.6)}100%{opacity:0}}
.geo-land{fill:var(--land);stroke:var(--land-brd);stroke-width:.5}
.map-legend{display:flex;justify-content:center;gap:16px;padding:12px 0 18px;font:500 11px var(--font-mono);color:var(--text-3)}
.map-legend span{display:flex;align-items:center;gap:6px}
.map-legend i{width:9px;height:9px;border-radius:50%;display:inline-block}
.tip{position:fixed;pointer-events:none;z-index:50;background:var(--bg-1);border:1px solid var(--panel-brd);
  border-radius:11px;padding:9px 12px;font-size:12px;box-shadow:0 16px 40px -16px rgba(10,20,50,.4);
  opacity:0;transform:translateY(4px);transition:opacity .14s,transform .14s;backdrop-filter:blur(10px)}
.tip.show{opacity:1;transform:translateY(0)}
.tip .t-city{font:600 13px var(--font-sans)}
.tip .t-cty{color:var(--text-3);font-size:11px;font-family:var(--font-mono)}
.tip .t-n{margin-top:5px;font:600 12px var(--font-sans);color:var(--accent)}
.tip .t-pv{margin-top:2px;font:600 12px var(--font-sans);color:var(--text-2)}

/* live feed (below map) — compact vertical list, scrolls within a capped
   height so the 24h feed (lazily loaded 100 rows at a time) never grows the
   page unboundedly. Thin scrollbar to stay out of the way. */
.feed-row{display:flex;flex-direction:column;padding:4px 0 8px;max-height:60vh;overflow-y:auto;
  scrollbar-width:thin;scrollbar-color:var(--panel-brd) transparent}
.frow{display:grid;grid-template-columns:auto minmax(0,1.5fr) minmax(0,1.4fr) 15ch 10ch;align-items:center;gap:12px;
  padding:8px 18px;border-top:1px solid var(--panel-hi);animation:slidein .4s ease}
.frow:first-child{border-top:0}
@keyframes slidein{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.frow .fdot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none;box-shadow:0 0 7px var(--accent)}
.frow .fc-city{font:600 13px var(--font-sans);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.frow .fc-city .fc-country{font:500 11px var(--font-mono);color:var(--text-3);margin-left:7px}
.frow .fc-page{font:500 11.5px var(--font-mono);color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.frow .fc-ip{font:500 11px var(--font-mono);color:var(--text-3);white-space:nowrap}
.frow .fc-time{font:500 10.5px var(--font-mono);color:var(--text-3);white-space:nowrap;text-align:right;min-width:52px}
@media(max-width:640px){.frow{grid-template-columns:auto 1fr auto}.frow .fc-page,.frow .fc-ip{display:none}}
/* lazy-load sentinel / status row (muted, mono, like the panel tags) */
.feed-sentinel{padding:11px 18px;text-align:center;border-top:1px solid var(--panel-hi);
  font:500 10.5px var(--font-mono);color:var(--text-3);letter-spacing:.08em}

/* ---------- Mobile (<=640px): compact top bar + stacked map header ------- */
@media (max-width:640px){
  .wrap{padding:14px 14px 20px;gap:12px}

  /* Top bar: brand (left) + icon-only toggle (right) share row 1; a multi-site
     selector reflows to row 2 via flex order + a line-break spacer (no HTML
     change; .brand already has margin-right:auto). Single-site: one clean row. */
  .topbar{gap:10px 12px}
  .brand{order:0}
  .toggle{order:1}
  .toggle button{font-size:0;gap:0;padding:7px}
  .topbar::after{content:"";order:2;flex-basis:100%;height:0}
  .site-wrap{order:4}
  .site-select{padding:5px 26px 5px 10px;font-size:11.5px}

  /* Map header: headline spans the row; the range switch drops onto its own
     full-width line; TODAY / PAGE VIEWS become an even two-column grid. */
  .map-top{padding:14px 14px 4px;gap:12px}
  .map-top .headline{margin-right:0;flex-basis:100%}
  .map-top .headline .k{display:block}
  .map-top .headline .k .range{margin-top:8px}
  .range button{flex:1}
  .map-top .headline .v{font-size:28px}
  .mini-stats{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:12px}
}

/* sidebar */
.side{display:flex;flex-direction:column;gap:18px}
.stat2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.stat{padding:16px 17px 15px}
.stat .k{font:500 11px var(--font-mono);color:var(--text-3);text-transform:uppercase;letter-spacing:.06em}
/* breathing live-dot inline with the "Online now" card title */
.stat .k .dot-live{width:7px;height:7px;display:inline-block;vertical-align:middle;margin-right:6px}
.stat .v{font:700 30px var(--font-sans);letter-spacing:-.02em;margin-top:6px;line-height:1}
.stat .d{font-size:11.5px;margin-top:8px;color:var(--text-2)}
.stat .d b{color:var(--good);font-weight:600}
.stat .d b.down{color:var(--accent)}
.stat.online .v{color:var(--accent)}

/* trend */
.trend .chart{padding:6px 8px 0}
#trend{width:100%;height:96px;display:block}
.tr-area{fill:url(#trGrad)}
.tr-line{fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
/* faint reference lines + grey labels that sit behind the line/area */
.tr-ref{stroke:var(--text-3);stroke-opacity:.22;stroke-width:1}
.tr-ref-lbl{fill:var(--text-3);font:10px var(--font-mono)}
/* hover crosshair + highlight dot */
.tr-cross{stroke:var(--text-3);stroke-opacity:.4;stroke-width:1}
.tr-dot{fill:var(--accent);stroke:var(--bg-1);stroke-width:2}
.tr-capture{fill:transparent;cursor:crosshair}
.tr-lbl{display:flex;justify-content:space-between;padding:0 14px 14px;font:500 10.5px var(--font-mono);color:var(--text-3)}

/* countries */
.countries{padding:8px 6px 12px}
.crow{display:grid;grid-template-columns:22px 1fr auto;align-items:center;gap:11px;padding:7px 14px}
.crow .flag{font-size:17px;line-height:1}
.crow .nm{display:flex;flex-direction:column;gap:5px;min-width:0}
.crow .nm .top{display:flex;justify-content:space-between;font-size:12.5px;gap:8px}
.crow .nm .top .cn{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crow .nm .top .pc{color:var(--text-3);font-family:var(--font-mono);font-size:11px;flex:none}
.crow .bar{height:5px;border-radius:6px;background:var(--panel-hi);overflow:hidden}
.crow .bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--accent),var(--accent-2));
  box-shadow:0 0 10px -1px var(--grid-glow);transform-origin:left;transition:width 1s cubic-bezier(.4,0,.1,1)}
.crow .cv{font:600 12.5px var(--font-sans);text-align:right;min-width:44px}

.empty{color:var(--text-3);font:500 12px var(--font-mono);padding:16px 18px}

.foot{text-align:center;color:var(--text-3);font:500 11px var(--font-mono);padding-top:2px}
.beep{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--good);margin-right:1px;vertical-align:middle;animation:beat 1.4s infinite}