*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #111827;
  --muted: #667085;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eff4ff;
  --code-bg: #0f172a;
  --code-fg: #e2e8f0;
  --header: #ffffff;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}

html.dark {
  --bg: #0b1220;
  --surface: #151c2c;
  --text: #f2f4f7;
  --muted: #98a2b3;
  --border: #243044;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: #1c2944;
  --code-bg: #0a101c;
  --code-fg: #d0d5dd;
  --header: #101828;
  --danger: #f97066;
  --danger-bg: #2a1515;
  --shadow: none;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-width: 0;
}

.site-header {
  background: var(--header);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand img {
  height: 28px;
  width: auto;
}

.logo-dark {
  display: none;
}

html.dark .logo-light {
  display: none;
}

html.dark .logo-dark {
  display: block;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.theme-toggle svg {
  fill: currentColor;
}

.theme-toggle .icon-sun {
  display: none;
}

html.dark .theme-toggle .icon-moon {
  display: none;
}

html.dark .theme-toggle .icon-sun {
  display: block;
}

.hero {
  padding: 36px 0 20px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.03em;
  font-weight: 650;
}

.hero p {
  margin: 0 0 20px;
  color: var(--muted);
  max-width: 42rem;
}

.search {
  display: flex;
  gap: 8px;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  box-shadow: var(--shadow);
}

.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  padding: 10px 12px;
  outline: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--accent-soft);
}

.btn-small {
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
}

.notice,
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
}

.notice {
  padding: 16px 18px;
  margin-bottom: 16px;
}

.notice.error {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: transparent;
}

.results {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: 16px;
  margin-bottom: 16px;
  align-items: stretch;
}

.facts {
  padding: 20px 22px;
}

.facts-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  height: 100%;
}

.facts-stack > .facts:not(.compact) {
  flex: 1 1 auto;
}

.facts.compact {
  padding: 14px 18px;
}

.facts.compact .ip-row {
  margin-bottom: 0;
}

.facts.compact .ip-row h2 {
  font-size: 16px;
}

.hint {
  display: inline-flex;
  margin: 0 0 12px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 650;
}

.hint-hosting {
  background: var(--accent-soft);
  color: var(--accent);
}

.hint-vpn {
  background: var(--danger-bg);
  color: var(--danger);
}

.hint-isp {
  background: #ecfdf3;
  color: #067647;
}

html.dark .hint-isp {
  background: #13281d;
  color: #75e0a7;
}

.hint-unknown {
  background: var(--accent-soft);
  color: var(--muted);
}

.share,
.api {
  margin-bottom: 16px;
  padding: 20px 22px;
}

.share h2,
.api h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.share p,
.api p {
  margin: 0 0 14px;
  color: var(--muted);
}

.share-grid,
.api-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}

.kicker {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.ip-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.ip-row h2 {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 22px;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

.copy-ip {
  flex-shrink: 0;
}

.value-with-copy {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.value-with-copy span {
  word-break: break-all;
}

.place {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
}

.rows {
  display: grid;
  gap: 0;
}

.row {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

.row dt {
  margin: 0;
  color: var(--muted);
}

.row dd {
  margin: 0;
  font-weight: 550;
  min-width: 0;
  overflow-wrap: anywhere;
}

.map-card {
  overflow: hidden;
  position: relative;
  min-width: 0;
  min-height: 360px;
  align-self: stretch;
}

#map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: #dbe4ee;
}

.map-locate {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1000;
}

.ip-marker {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: #3b82f6;
  border: 3px solid #fff;
}

.leaflet-popup-content {
  margin: 8px 10px;
  font-size: 13px;
}

.api {
  padding: 20px 22px;
  margin-bottom: 40px;
}

.api h2 {
  margin: 0 0 4px;
  font-size: 16px;
}

.api > p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
}

.api-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
}

.api-item {
  min-width: 0;
}

.api-item h3 {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}

.api-item pre {
  margin: 0 0 10px;
  max-width: 100%;
  overflow-x: auto;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 12px;
  line-height: 1.45;
}

.api-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 0 28px;
  color: var(--muted);
  font-size: 13px;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--text);
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #111827;
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  display: none;
  z-index: 1000;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 700px) {
  .results,
  .api-grid,
  .share-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .map-card {
    min-height: 320px;
    height: 320px;
  }
}

@media (max-width: 640px) {
  .search {
    flex-wrap: wrap;
  }

  .search input {
    flex-basis: 100%;
  }

  .hero h1 {
    font-size: 24px;
  }

  .row {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}