:root {
  --bg: #0a0d13;
  --bg-glow: rgba(56, 189, 248, .07);
  --card: #111722;
  --card-2: #151c29;
  --line: #1e2635;
  --line-2: #2a3446;
  --text: #e8edf5;
  --muted: #8b97a9;
  --faint: #5a6578;
  --dl: #38bdf8;
  --dl-2: #0ea5e9;
  --ul: #a78bfa;
  --ul-2: #8b5cf6;
  --ping: #f5b544;
  --lan: #4ade80;
  --net: #60a5fa;
  --danger: #f87171;
  --btn-text: #06121c;
  --radius: 18px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fa;
    --bg-glow: rgba(14, 165, 233, .08);
    --card: #ffffff;
    --card-2: #f7f9fc;
    --line: #e2e7ef;
    --line-2: #d3dae5;
    --text: #0f172a;
    --muted: #5b677a;
    --faint: #8f9aab;
    --dl: #0284c7;
    --dl-2: #0369a1;
    --ul: #7c3aed;
    --ul-2: #6d28d9;
    --ping: #b7791f;
    --lan: #16a34a;
    --net: #2563eb;
    --btn-text: #ffffff;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 600px at 20% -10%, var(--bg-glow), transparent 60%), var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
.ic { width: 1.15em; height: 1.15em; flex: none; vertical-align: -0.2em; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.num, b, .big { font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------ header */
.top { display: flex; align-items: center; justify-content: space-between; padding: 18px 0 8px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 650; font-size: 17px; letter-spacing: -.01em; }
.brand-mark { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--dl), var(--ul)); color: #fff; }
.brand-mark .ic { width: 18px; height: 18px; }
.brand small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; letter-spacing: 0; }
.tabs { display: flex; gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); }
.tabs a { text-decoration: none; padding: 7px 16px; border-radius: 999px; color: var(--muted); font-weight: 550; font-size: 14px; }
.tabs a.on { background: var(--card-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }
.tabs a:hover { color: var(--text); }

/* ------------------------------------------------------------------ test layout */
.test { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 32px; align-items: center; padding: 18px 0 26px; }
@media (max-width: 920px) { .test { grid-template-columns: 1fr; gap: 22px; } }

.dial-col { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.dial { position: relative; width: min(460px, 86vw); aspect-ratio: 1; }
.dial > svg { width: 100%; height: 100%; display: block; overflow: visible; }
.dial .track { stroke: var(--line); }
.dial .val { transition: stroke .3s; }
.dial .tick { fill: var(--faint); font-size: 15px; font-weight: 550; }
.dial .tick.hit { fill: var(--muted); }
.dial.ping .track { animation: breathe 1.2s ease-in-out infinite; }
@keyframes breathe { 50% { stroke: var(--line-2); } }

.readout { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; padding-top: 4%; pointer-events: none; text-align: center; }
.phase { text-transform: uppercase; letter-spacing: .14em; font-size: 12.5px; font-weight: 650; color: var(--muted); display: flex; align-items: center; gap: 6px; min-height: 18px; }
.dial.download .phase { color: var(--dl); }
.dial.upload .phase { color: var(--ul); }
.dial.ping .phase { color: var(--ping); }
.big { font-size: clamp(56px, 11vw, 92px); font-weight: 700; letter-spacing: -.04em; line-height: 1; margin: 8px 0 4px; }
.unit { color: var(--muted); font-size: 17px; font-weight: 550; }
.sub { margin-top: 14px; color: var(--muted); font-size: 14px; min-height: 20px; max-width: 58%; }
.sub b { color: var(--text); font-weight: 600; }
.sub .ic, .phase .ic { width: 15px; height: 15px; }

.go { appearance: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-width: 220px; height: 58px; padding: 0 30px; border-radius: 999px; font-size: 18px; font-weight: 650; letter-spacing: .01em;
  color: var(--btn-text); background: linear-gradient(110deg, var(--dl), var(--ul));
  box-shadow: 0 10px 30px -10px rgba(56, 189, 248, .55), inset 0 1px 0 rgba(255, 255, 255, .25);
  transition: transform .15s, box-shadow .2s, filter .2s; }
.go:hover { transform: translateY(-1px); filter: brightness(1.06); }
.go:active { transform: translateY(1px); }
.go:focus-visible { outline: 3px solid var(--text); outline-offset: 3px; }
.go.cancel { background: var(--card); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }
.go .ic { width: 20px; height: 20px; }

.steps { display: flex; gap: 8px; }
.step { font-size: 12.5px; font-weight: 600; color: var(--faint); padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); display: flex; align-items: center; gap: 6px; }
.step i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; opacity: .6; }
.step.on { color: var(--text); border-color: var(--line-2); }
.step.on i { opacity: 1; animation: blink 1s infinite; }
.step.ok { color: var(--muted); }
.step.ok i { opacity: 1; background: var(--lan); }
@keyframes blink { 50% { opacity: .25; } }

/* ------------------------------------------------------------------ result cards */
.cards { display: grid; gap: 14px; }
.card { position: relative; overflow: hidden; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; min-height: 140px; }
.card h3 { margin: 0; display: flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; color: var(--muted); }
.card.dl h3 { color: var(--dl); }
.card.ul h3 { color: var(--ul); }
.card.lat h3 { color: var(--ping); }
.card .v { display: flex; align-items: baseline; gap: 8px; margin-top: 10px; position: relative; z-index: 1; }
.card .v b { font-size: 50px; font-weight: 700; letter-spacing: -.035em; line-height: 1; }
.card .v span { color: var(--muted); font-weight: 550; font-size: 16px; }
.card .spark { position: absolute; right: 0; bottom: 0; width: 62%; height: 78%; opacity: .95; }
.card.dl .spark path { fill: url(#gDl); stroke: var(--dl); }
.card.ul .spark path { fill: url(#gUl); stroke: var(--ul); }
.card .spark path { stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.card.live { border-color: var(--line-2); }
.card.dl.live { box-shadow: inset 0 0 0 1px rgba(56, 189, 248, .35); }
.card.ul.live { box-shadow: inset 0 0 0 1px rgba(167, 139, 250, .35); }
.lat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 10px; }
.lat-grid > div > small { display: block; color: var(--muted); font-size: 12.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; }
.lat-grid .v { margin-top: 4px; }
.lat-grid .v b { font-size: 42px; }
.loaded { margin-top: 12px; color: var(--muted); font-size: 13.5px; display: flex; gap: 14px; flex-wrap: wrap; }
.loaded b { color: var(--text); font-weight: 600; }
.loaded .ic { color: var(--faint); }

/* ------------------------------------------------------------------ you strip */
.you { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; }
.you .scope { width: 40px; height: 40px; }
.you .scope .ic { width: 22px; height: 22px; }
.you-ip code { font-family: var(--mono); font-size: 15px; font-weight: 600; }
.you-ip small, .you-dev small { display: block; color: var(--muted); font-size: 12.5px; }
.you .sep { width: 1px; align-self: stretch; background: var(--line); }
.you-dev { display: flex; align-items: center; gap: 10px; min-width: 0; }
.you-dev > .ic { width: 22px; height: 22px; color: var(--muted); }
.you-dev .name { font-weight: 600; }
.linkbtn { appearance: none; background: none; border: 1px solid var(--line-2); border-radius: 999px; padding: 5px 12px; cursor: pointer; color: var(--muted); font-size: 13px; display: inline-flex; gap: 6px; align-items: center; }
.linkbtn:hover { color: var(--text); }
.name-form { display: flex; gap: 8px; align-items: center; }
.name-form input { background: var(--card-2); border: 1px solid var(--line-2); color: var(--text); border-radius: 10px; padding: 7px 10px; font: inherit; width: 200px; }
.you .spacer { flex: 1; }
.saved { color: var(--muted); font-size: 13.5px; }
.saved a { color: var(--dl); }

/* ------------------------------------------------------------------ scope badges */
.scope { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; flex: none; }
.scope.lan { color: var(--lan); background: color-mix(in srgb, var(--lan) 14%, transparent); }
.scope.net { color: var(--net); background: color-mix(in srgb, var(--net) 14%, transparent); }
.scope .ic { width: 18px; height: 18px; }

/* ------------------------------------------------------------------ result rows */
.section-h { display: flex; align-items: baseline; justify-content: space-between; margin: 30px 0 10px; gap: 12px; }
.section-h h2 { margin: 0; font-size: 18px; letter-spacing: -.01em; }
.section-h a { color: var(--dl); text-decoration: none; font-weight: 600; font-size: 14px; }
.rows { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.rows .empty { padding: 26px; color: var(--muted); text-align: center; }
.row, .row-h { display: grid; grid-template-columns: 44px 112px minmax(170px, 1.5fr) minmax(150px, 1.1fr) 112px 112px 70px 70px 40px; align-items: center; gap: 10px; padding: 11px 16px; }
.rows.no-del .row, .rows.no-del .row-h { grid-template-columns: 44px 112px minmax(170px, 1.5fr) minmax(150px, 1.1fr) 112px 112px 70px 70px; }
.row + .row { border-top: 1px solid var(--line); }
.row-h { color: var(--faint); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; font-weight: 700; border-bottom: 1px solid var(--line); padding-top: 10px; padding-bottom: 10px; }
.row.mine { background: linear-gradient(90deg, color-mix(in srgb, var(--dl) 7%, transparent), transparent 60%); }
.row.fresh { animation: fresh 2.4s ease-out; }
@keyframes fresh { from { background: color-mix(in srgb, var(--dl) 22%, transparent); } }
.c-when { display: flex; flex-direction: column; gap: 2px; font-size: 13.5px; color: var(--muted); }
.you-tag { font-style: normal; font-size: 10.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--dl); }
.dev { display: flex; align-items: center; gap: 10px; min-width: 0; }
.dev > .ic { width: 20px; height: 20px; color: var(--muted); }
.dev-t { display: flex; flex-direction: column; min-width: 0; }
.dev-t > span, .dev-t > b, .dev-t > small { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dev-t > b { font-weight: 600; }
.dev-t > small { color: var(--muted); font-size: 12.5px; }
.ip { display: flex; flex-direction: column; min-width: 0; }
.ip code { font-family: var(--mono); font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ip small { color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.c-num { position: relative; display: flex; align-items: baseline; gap: 4px; justify-content: flex-end; padding-bottom: 6px; }
.c-num b { font-size: 17px; font-weight: 650; }
.c-num small { color: var(--muted); font-size: 12px; }
.c-num .lbl { display: none; }
.c-dl b { color: var(--dl); }
.c-ul b { color: var(--ul); }
.c-num .bar { position: absolute; right: 0; bottom: 0; height: 3px; border-radius: 3px; opacity: .55; }
.bar.dl { background: var(--dl); }
.bar.ul { background: var(--ul); }
.row-h .c-num { padding-bottom: 0; }
.c-act { text-align: right; }
.del { appearance: none; background: none; border: 0; color: var(--faint); cursor: pointer; padding: 6px; border-radius: 8px; opacity: 0; transition: opacity .15s; }
.row:hover .del, .del:focus-visible { opacity: 1; }
.del:hover { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, transparent); }

@media (max-width: 1000px) {
  .row-h { display: none; }
  .row, .rows.no-del .row { grid-template-columns: 40px repeat(4, minmax(0, 1fr)); row-gap: 8px; padding: 14px; }
  .c-scope { grid-column: 1; grid-row: 1 / span 2; align-self: start; }
  .c-dev { grid-column: 2 / span 3; grid-row: 1; }
  .c-when { grid-column: 5; grid-row: 1; align-items: flex-end; text-align: right; }
  .c-ip { grid-column: 2 / span 4; grid-row: 2; }
  .row > .c-dl { grid-column: 2; grid-row: 3; }
  .row > .c-ul { grid-column: 3; grid-row: 3; }
  .row > .c-ping { grid-column: 4; grid-row: 3; }
  .row > .c-jit { grid-column: 5; grid-row: 3; }
  .c-act { display: none; }
  .row .c-num { justify-content: flex-start; flex-wrap: wrap; }
  .c-num .lbl { display: block; width: 100%; color: var(--faint); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; font-weight: 700; }
  .c-num .lbl .ic { width: 13px; height: 13px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 16px; }
  .row, .rows.no-del .row { grid-template-columns: 36px repeat(2, minmax(0, 1fr)); }
  .c-dev { grid-column: 2 / span 2; grid-row: 1; }
  .c-ip { grid-column: 2 / span 2; grid-row: 2; }
  .c-when { grid-column: 2 / span 2; grid-row: 3; flex-direction: row; gap: 8px; align-items: baseline; text-align: left; }
  .row > .c-dl { grid-column: 2; grid-row: 4; }
  .row > .c-ul { grid-column: 3; grid-row: 4; }
  .row > .c-ping { grid-column: 2; grid-row: 5; }
  .row > .c-jit { grid-column: 3; grid-row: 5; }
  .tabs a { padding: 7px 12px; }
  .brand small { display: none; }
  .you { gap: 12px; }
  .you .sep { display: none; }
  .name-form input { width: 150px; }
}

/* ------------------------------------------------------------------ history page */
.hist-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 22px 0 14px; }
.hist-head h1 { margin: 0; font-size: 28px; letter-spacing: -.02em; }
.hist-head p { margin: 4px 0 0; color: var(--muted); }
.seg { display: flex; gap: 4px; padding: 4px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); }
.seg button { appearance: none; border: 0; background: none; cursor: pointer; padding: 7px 12px; border-radius: 9px; color: var(--muted); font-weight: 600; font-size: 13.5px; display: flex; align-items: center; gap: 7px; }
.seg button .n { color: var(--faint); font-weight: 600; }
.seg button.on { background: var(--card-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }
.seg button .ic { width: 16px; height: 16px; }
.seg button[data-scope="lan"] .ic { color: var(--lan); }
.seg button[data-scope="internet"] .ic { color: var(--net); }
.note { margin: 0 0 12px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); color: var(--muted); font-size: 13.5px; display: flex; gap: 8px; align-items: center; }
.more { display: flex; justify-content: center; padding: 16px; }
.legend { display: flex; gap: 16px; color: var(--muted); font-size: 13px; margin: 12px 2px 40px; flex-wrap: wrap; }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend .scope { width: 24px; height: 24px; border-radius: 7px; }
.legend .scope .ic { width: 14px; height: 14px; }

footer.foot { color: var(--faint); font-size: 12.5px; padding: 26px 0 40px; display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; }
footer.foot a { color: var(--muted); }
.err { color: var(--danger); }
.rows.no-del .row-h > :last-child { display: none; }
[hidden] { display: none !important; }