:root {
  color-scheme: light;
  --bg: #f4f2ec;
  --surface: #fbfaf6;
  --ink: #16181c;
  --soft: #565a63;
  --line: #d8d5cb;
  --wire: #b5b1a4;
  --ok: #0f7a55;
  --ok-bg: #dcefe5;
  --info: #2b5fb8;
  --info-bg: #e0e8f7;
  --warn: #8f5400;
  --warn-bg: #f7e7c9;
  --bad: #b3261e;
  --bad-bg: #f9dedb;
  --run: #6b6f78;
  --run-bg: #e7e5de;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0e1012;
    --surface: #15181b;
    --ink: #ebe9e2;
    --soft: #a2a5ac;
    --line: #2a2d31;
    --wire: #3d4146;
    --ok: #4bd6a4;
    --ok-bg: #12332a;
    --info: #86b1f5;
    --info-bg: #182a47;
    --warn: #eebb5c;
    --warn-bg: #3a2c10;
    --bad: #ff8a7e;
    --bad-bg: #431c19;
    --run: #a2a5ac;
    --run-bg: #24272b;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e1012;
  --surface: #15181b;
  --ink: #ebe9e2;
  --soft: #a2a5ac;
  --line: #2a2d31;
  --wire: #3d4146;
  --ok: #4bd6a4;
  --ok-bg: #12332a;
  --info: #86b1f5;
  --info-bg: #182a47;
  --warn: #eebb5c;
  --warn-bg: #3a2c10;
  --bad: #ff8a7e;
  --bad-bg: #431c19;
  --run: #a2a5ac;
  --run-bg: #24272b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
}

a {
  color: inherit;
}

h1, h2, p, ol, ul, dl, dd {
  margin: 0;
  padding: 0;
}

ol, ul {
  list-style: none;
}

button {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: transparent;
  color: var(--soft);
  padding: 5px 11px;
  font: inherit;
  font-size: 13.5px;
  cursor: pointer;
}

button:hover {
  border-color: var(--wire);
  color: var(--ink);
}

button:disabled {
  opacity: .5;
  cursor: progress;
}

:focus-visible {
  outline: 2px solid var(--info);
  outline-offset: 2px;
}

.mono, .ip {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.bar, main, .foot {
  width: 100%;
  max-width: 860px;
  margin-inline: auto;
  padding-inline: 16px;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 650;
  letter-spacing: -.01em;
  text-decoration: none;
}

.tools {
  display: flex;
  gap: 8px;
}

.hero {
  padding-block: clamp(28px, 7vw, 64px) clamp(24px, 5vw, 40px);
}

.kicker {
  color: var(--soft);
  font-size: 14px;
}

.hero-ip {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: clamp(2.2rem, 9.4vw, 4.6rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.035em;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.hero-ip.long {
  font-size: clamp(1.35rem, 5.2vw, 2.7rem);
  letter-spacing: -.02em;
}

.hero-place {
  margin-top: 12px;
  color: var(--soft);
  font-size: 17px;
}

.hero-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 28px;
}

.strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.strip a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 6px;
  background: var(--tone-bg);
  color: var(--tone);
  padding: 2px 9px;
  font-size: 13.5px;
  font-weight: 550;
  text-decoration: none;
}

.strip a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
  padding: 7px 16px;
  font-size: 14.5px;
  font-weight: 550;
}

.primary:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
  opacity: .86;
}

[data-state] {
  --tone: var(--run);
  --tone-bg: var(--run-bg);
}

[data-state="ok"] {
  --tone: var(--ok);
  --tone-bg: var(--ok-bg);
}

[data-state="info"] {
  --tone: var(--info);
  --tone-bg: var(--info-bg);
}

[data-state="warn"] {
  --tone: var(--warn);
  --tone-bg: var(--warn-bg);
}

[data-state="bad"] {
  --tone: var(--bad);
  --tone-bg: var(--bad-bg);
}

.wire {
  position: relative;
  padding-left: 30px;
}

.wire::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 30px;
  left: 6px;
  width: 2px;
  background: var(--wire);
}

.probe {
  position: relative;
  scroll-margin-top: 16px;
  padding-block: 0 34px;
}

.node {
  position: absolute;
  top: 7px;
  left: -30px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--tone);
  border-radius: 50%;
  background: var(--bg);
  transition: background .25s, border-color .25s;
}

.probe:not([data-state="run"]) .node {
  background: var(--tone);
}

.probe[data-state="run"] .node {
  animation: probe-pulse 1.3s ease-in-out infinite;
}

@keyframes probe-pulse {
  50% {
    box-shadow: 0 0 0 5px var(--tone-bg);
  }
}

.probe-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.probe h2, .history h2 {
  font-size: 19px;
  font-weight: 620;
  letter-spacing: -.01em;
  line-height: 1.4;
}

.num {
  margin-right: 9px;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 450;
}

.hint, .note {
  color: var(--soft);
  font-size: 14.5px;
}

.verdict {
  flex: none;
  border-radius: 6px;
  background: var(--tone-bg);
  color: var(--tone);
  padding: 2px 10px;
  font-size: 14px;
  font-weight: 560;
  white-space: nowrap;
}

.probe-body:not(:empty) {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  padding: 6px 16px 12px;
}

.kv {
  display: grid;
  grid-template-columns: minmax(96px, 150px) minmax(0, 1fr);
}

.kv dt, .kv dd {
  padding-block: 7px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.kv dt {
  padding-right: 16px;
  color: var(--soft);
}

.kv dd {
  overflow-wrap: anywhere;
}

.kv dt:nth-last-of-type(1), .kv dd:last-of-type {
  border-bottom: 0;
}

.stack {
  display: flex;
  flex-direction: column;
}

.rows .row {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1.1fr) minmax(0, 1.25fr);
  gap: 2px 14px;
  border-bottom: 1px solid var(--line);
  padding-block: 8px;
  font-size: 15px;
  overflow-wrap: anywhere;
}

.rows .row:last-child {
  border-bottom: 0;
}

.row-org {
  color: var(--soft);
}

.row-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.rows .row-tags {
  grid-column: 1 / -1;
}

.rows .row-tags:empty {
  display: none;
}

.tag {
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--soft);
  padding: 0 6px;
  font-family: var(--sans);
  font-size: 13px;
}

.note {
  margin-top: 8px;
}

.reach {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 28px;
}

.reach li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-block: 7px;
  font-size: 15px;
}

.reach [data-state] {
  color: var(--tone);
}

.history {
  margin-left: 30px;
  border-top: 1px solid var(--line);
  padding-block: 28px;
}

.history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.history .rows {
  margin-top: 10px;
}

.empty {
  color: var(--soft);
  font-size: 15px;
}

.foot {
  padding-block: 12px 48px;
  color: var(--soft);
  font-size: 14.5px;
}

.foot h2 {
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 620;
}

.foot p + p {
  margin-top: 8px;
}

.foot a {
  text-underline-offset: 2px;
}

@media (max-width: 620px) {
  .brand span {
    font-size: 15px;
  }

  button {
    padding-inline: 8px;
    font-size: 13px;
  }

  .primary {
    padding-inline: 14px;
  }

  .wire {
    padding-left: 24px;
  }

  .node {
    left: -24px;
  }

  .probe-head {
    flex-direction: column;
    gap: 6px;
  }

  .probe-body:not(:empty) {
    padding-inline: 12px;
  }

  .kv {
    grid-template-columns: 92px minmax(0, 1fr);
  }

  .kv dt {
    padding-right: 10px;
  }

  .rows .row {
    grid-template-columns: minmax(0, 1fr);
  }

  .reach {
    grid-template-columns: minmax(0, 1fr);
  }

  .history {
    margin-left: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .probe[data-state="run"] .node {
    animation: none;
  }

  .node {
    transition: none;
  }
}