@font-face {
  font-family: "Instrument Sans";
  src: url("/fonts/instrument-sans-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Sans";
  src: url("/fonts/instrument-sans-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Sans";
  src: url("/fonts/instrument-sans-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #090a0b;
  --ink: #f5f5f4;
  --muted: #a8a29e;
  --faint: #78716c;
  --line: rgba(245, 245, 244, 0.12);
  --surface: #121315;
  --surface-2: #191a1d;
  --link: #b9cdfb;
  --good: #b6f0c2;
  --warn: #f3d48a;
  --bad: #ffb4b4;
  --glow: rgba(255, 255, 255, 0.06);
  --sans: "Instrument Sans", "Avenir Next", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 18px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f2ef;
  --ink: #1c1917;
  --muted: #57534e;
  --faint: #78716c;
  --line: rgba(28, 25, 23, 0.12);
  --surface: #fffcf8;
  --surface-2: #f6f3ed;
  --link: #1e40af;
  --good: #166534;
  --warn: #92400e;
  --bad: #991b1b;
  --glow: rgba(28, 25, 23, 0.04);
  --shadow: 0 24px 60px rgba(28, 25, 23, 0.06);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f3f2ef;
    --ink: #1c1917;
    --muted: #57534e;
    --faint: #78716c;
    --line: rgba(28, 25, 23, 0.12);
    --surface: #fffcf8;
    --surface-2: #f6f3ed;
    --link: #1e40af;
    --good: #166534;
    --warn: #92400e;
    --bad: #991b1b;
    --glow: rgba(28, 25, 23, 0.04);
    --shadow: 0 24px 60px rgba(28, 25, 23, 0.06);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 420px at 50% -10%, var(--glow), transparent 70%),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.45), transparent 42%);
  opacity: 0.35;
}
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }
button, input, textarea { font: inherit; color: inherit; }
h1, h2, h3 { font-weight: 500; letter-spacing: -0.03em; line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0; }
h2 { font-size: 1.35rem; margin: 0 0 0.6rem; }
h3 { font-size: 1.05rem; margin: 0 0 0.35rem; }
p { margin: 0.4rem 0; }

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 12px;
  border-radius: 999px;
  z-index: 30;
}
.skip:focus { top: 12px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.nav, .foot {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 68px;
  padding: 10px 0;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(16px);
}
.nav-links { display: flex; gap: 16px; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--ink); }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.04em;
}
.brand-mark {
  width: 14px;
  height: 14px;
  border: 1.5px solid currentColor;
  border-radius: 5px;
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 99px;
  background: currentColor;
}
.nav-search { margin-left: auto; display: flex; align-items: center; }
.nav-search input, .form-row input, .stack-form input, .needs input[type="text"], .needs input:not([type="radio"]):not([type="checkbox"]) {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  min-width: 220px;
}
.nav-search input {
  height: 40px;
  padding-top: 0;
  padding-bottom: 0;
  line-height: 38px;
}
.brand { height: 40px; }
#theme-toggle {
  width: 40px;
  height: 40px;
  padding: 0;
  flex: 0 0 40px;
  align-self: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  cursor: pointer;
}
#theme-toggle span { display: none; align-items: center; justify-content: center; line-height: 0; }
#theme-toggle .icon-sun { display: inline-flex; }
#theme-toggle svg { display: block; width: 16px; height: 16px; }
:root[data-theme="light"] #theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] #theme-toggle .icon-moon { display: inline-flex; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) #theme-toggle .icon-sun { display: none; }
  :root:not([data-theme]) #theme-toggle .icon-moon { display: inline-flex; }
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 72px;
  position: relative;
}
.hero { padding: 18px 0 8px; max-width: 920px; }
.kicker {
  margin: 0 0 10px;
  color: var(--faint);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.ip-row { display: flex; align-items: center; gap: 14px; min-width: 0; }
.ip-fit, .addr-fit {
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  container-type: inline-size;
  scrollbar-width: thin;
}
.ip-fit { flex: 1 1 auto; }
.addr-fit { flex: 1 1 auto; display: block; }
.ip, .addr {
  font-family: var(--mono);
  white-space: nowrap;
  overflow-wrap: normal;
  word-break: keep-all;
  display: block;
  width: max-content;
  line-height: 1.15;
}
.ip {
  font-weight: 500;
  letter-spacing: -0.045em;
  font-size: clamp(0.64rem, 4.8vw, 4.15rem);
  font-size: clamp(0.64rem, calc(100cqi / (var(--chars, 15) * 0.64)), 4.15rem);
  margin: 0;
}
.answer { font-size: 1.15rem; max-width: 62ch; margin-top: 12px; }
.hero h1 { margin-bottom: 12px; }
.addr {
  margin-left: auto;
  text-align: right;
  font-size: clamp(0.68rem, 3.2vw, 0.95rem);
  font-size: clamp(0.68rem, calc(100cqi / (var(--chars, 15) * 0.62)), 0.95rem);
}
.where { font-size: 1.2rem; color: var(--muted); margin-top: 12px; }
.cc {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.lede { max-width: 62ch; color: var(--muted); font-size: 1.05rem; }
.fine, .muted { color: var(--faint); font-size: 0.92rem; }
.copy, button, .primary {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
button.primary, .primary { background: var(--ink); color: var(--bg); border-color: transparent; }
.copy[data-state="done"] { color: var(--good); }

.families {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 280px));
  gap: 10px;
  margin-top: 22px;
}
.families div, .card, .map-card, .verdict, .affiliate, .api-strip {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.families div { padding: 12px 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-width: 0; }
.families div > span:first-child { color: var(--faint); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; flex: none; }
.families code, pre, code { font-family: var(--mono); }
.split {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 16px;
  margin-top: 22px;
}
.card { padding: 8px 22px; }
.facts { margin: 0; }
.facts > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}
.facts > div:first-child { border-top: 0; }
.facts dt { color: var(--faint); }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.map-card { min-height: 320px; overflow: hidden; display: flex; flex-direction: column; }
.map { flex: 1; min-height: 280px; background: var(--surface-2); }
.map-idle { display: grid; place-items: center; }
.families .status {
  font-family: var(--sans);
  font-size: 0.82rem;
  line-height: 1.35;
  text-align: right;
  white-space: normal;
  width: auto;
  max-width: 22ch;
}
.live-check, .visitor-ip { margin: 0 0 16px; padding: 14px 16px; }
.map-empty { display: grid; place-items: center; padding: 24px; color: var(--muted); }
.map-credit { margin: 0; padding: 8px 12px 10px; color: var(--faint); font-size: 0.75rem; }
.map-dark .leaflet-tile-pane { filter: invert(1) hue-rotate(180deg) brightness(0.9) contrast(0.92); }
.leaflet-container { font-family: var(--sans); background: var(--surface-2); }

.verdict { margin-top: 16px; padding: 16px 18px; border-left: 3px solid var(--faint); }
.verdict[data-type="mobile"] { border-left-color: var(--warn); }
.verdict[data-type="vpn"], .verdict[data-type="tor"], .verdict[data-type="datacenter"] { border-left-color: var(--bad); }
.verdict[data-type="broadband"] { border-left-color: var(--good); }
.verdict[data-type="relay"] { border-left-color: var(--warn); }
.relay-note { margin: 6px 0 0; color: var(--warn); }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 22px;
}
.tool-grid a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  background: var(--surface);
  min-height: 150px;
}
.tool-grid a:hover { border-color: color-mix(in srgb, var(--ink) 35%, var(--line)); }
.tool-grid span { color: var(--faint); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; }
.tool-grid strong { font-size: 1.15rem; letter-spacing: -0.03em; }
.tool-grid em { color: var(--muted); font-style: normal; }

.api-strip {
  margin-top: 22px;
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: center;
}
pre {
  margin: 0;
  padding: 14px 16px;
  background: var(--surface-2);
  border-radius: 12px;
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.7;
}
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--faint); font-size: 0.85rem; margin: 0 0 14px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--ink); }
.faq { margin-top: 28px; max-width: 74ch; }
.faq h2 { margin-bottom: 4px; }
.faq article { border-top: 1px solid var(--line); padding: 14px 0; }
.faq h3 { font-size: 1.02rem; letter-spacing: -0.02em; margin: 0; }
.faq p { color: var(--muted); margin: 8px 0 0; }
.prose { margin-top: 28px; max-width: 74ch; }
.prose h2 { margin-top: 1.6rem; }
.prose pre { margin: 12px 0 18px; }
.guide h1 { margin-bottom: 0.8rem; }
.affiliate { margin-top: 18px; padding: 18px 20px; }
.affiliate ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.affiliate li { display: flex; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); padding-top: 8px; }
.affiliate li span { color: var(--faint); }

.stack-form, .needs { display: grid; gap: 12px; margin: 18px 0; }
.stack-form label, .needs label { display: grid; gap: 6px; color: var(--muted); }
.form-row { display: flex; gap: 8px; flex-wrap: wrap; }
.form-row input, .stack-form input, textarea, .needs input[name="country"] {
  border-radius: 12px;
  min-width: 0;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 10px 12px;
}
textarea { min-height: 140px; font-family: var(--mono); font-size: 0.9rem; }
.form-error { color: var(--bad); }
.summary { margin: 16px 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); }
th { font-weight: 500; }
thead th { color: var(--faint); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }
.corrections, .answers, .ranked { padding: 0; list-style: none; }
.corrections li, .ranked li { margin: 14px 0; }
.corrections p, .ranked span { display: block; color: var(--muted); margin-top: 4px; }
.answers li { display: flex; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); font-family: var(--mono); }
.isp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.isp, .isp-grid article { border: 1px solid var(--line); border-radius: 16px; padding: 14px 16px; background: var(--surface); }
fieldset { border: 1px solid var(--line); border-radius: 16px; padding: 12px; }
legend { padding: 0 6px; color: var(--faint); }
.needs label { display: flex; gap: 8px; align-items: center; }
.foot {
  display: grid;
  gap: 12px;
  padding: 28px 0 48px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.foot nav { display: flex; flex-wrap: wrap; gap: 14px; }
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover { color: var(--ink); }

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 22px;
  align-items: start;
  margin-top: 8px;
}
.tool-side { display: grid; gap: 12px; }
.tool-side .affiliate { margin-top: 0; }
#leak-affiliate { margin-top: 16px; }
.primary { display: inline-block; text-decoration: none; }

@media (max-width: 860px) {
  .nav { flex-wrap: wrap; position: static; }
  .nav-links { order: 4; width: 100%; overflow-x: auto; }
  .nav-search { margin-left: 0; flex: 1; }
  .nav-search input { width: 100%; min-width: 0; }
  .split, .api-strip, .tool-grid, .families, .isp-grid, .tool-layout { grid-template-columns: 1fr; }
  .facts > div { grid-template-columns: 1fr; gap: 2px; }
  main { padding-top: 12px; }
}

@media (prefers-reduced-motion: no-preference) {
  main { animation: rise 0.35s ease both; }
}
@keyframes rise {
  from { transform: translateY(6px); }
  to { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  main { animation: none; }
}