/* WrangURL site. Colours come from the app icon: a teal-to-violet gradient. */

:root {
  --bg: #f4f5fa;
  --surface: #ffffff;
  --sunken: #eaecf4;
  --ink: #17182c;
  --muted: #595d78;
  --line: #d8dbe8;
  --violet: #5a48cf;
  --violet-ink: #4a39b8;
  --teal: #1f8a80;
  --on-violet: #ffffff;
  --shadow: 0 1px 2px rgb(23 24 44 / 6%), 0 8px 24px rgb(23 24 44 / 6%);

  --font: "Schibsted Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --measure: 42rem;
  --wide: 68rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121320;
    --surface: #1a1b2c;
    --sunken: #222437;
    --ink: #ebecf5;
    --muted: #a2a6c0;
    --line: #2f3148;
    --violet: #9b8cff;
    --violet-ink: #b3a8ff;
    --teal: #5ccabd;
    --on-violet: #15142b;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 25%);
  }
}

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

html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--violet-ink); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 4px; }

code, kbd, pre { font-family: var(--mono); font-size: 0.86em; }
code {
  background: var(--sunken);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}
kbd {
  display: inline-block;
  min-width: 1.7em;
  padding: 0.05em 0.45em;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--surface);
  text-align: center;
  line-height: 1.5;
}

.skip {
  position: absolute; left: 1rem; top: -3rem;
  background: var(--violet); color: var(--on-violet);
  padding: 0.5rem 0.9rem; border-radius: 6px; z-index: 10;
}
.skip:focus { top: 0.75rem; }

/* Header */

.top {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.top-inner {
  max-width: var(--wide); margin: 0 auto;
  padding: 0.7rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand {
  display: flex; align-items: center; gap: 0.55rem;
  color: var(--ink); text-decoration: none; font-weight: 700; letter-spacing: -0.01em;
}
.brand img { border-radius: 7px; }
.top nav { display: flex; gap: clamp(0.9rem, 3vw, 1.75rem); }
.top nav a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.top nav a:hover { color: var(--ink); }

/* Hero */

main > section { max-width: var(--wide); margin: 0 auto; padding-inline: var(--gutter); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-block: clamp(3rem, 9vw, 7rem) clamp(2.5rem, 6vw, 4.5rem);
}
.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 5.2vw, 4.1rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.035em;
}
.lede { font-size: clamp(1.1rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 34rem; margin: 0 0 2rem; }
.fine { color: var(--muted); font-size: 0.9rem; margin: 1.1rem 0 0; }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.button {
  display: inline-flex; align-items: center;
  padding: 0.7rem 1.15rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-weight: 600; text-decoration: none;
  transition: background-color 0.15s, border-color 0.15s;
}
.button:hover { border-color: var(--muted); }
.button.primary { background: var(--violet); border-color: var(--violet); color: var(--on-violet); }
.button.primary:hover { background: var(--violet-ink); border-color: var(--violet-ink); }

/* The router diagram: the one piece of motion on the page. */

.router {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.1rem, 3vw, 1.75rem);
  box-shadow: var(--shadow);
}
.router-url { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.75rem; }
.router-label { font-size: 0.85rem; color: var(--muted); }
.router-url code {
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  background: var(--sunken);
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.router-map { width: 100%; height: auto; display: block; }
.router-map .trunk,
.router-map .branch { fill: none; stroke: var(--line); stroke-width: 2.5; stroke-linecap: round; transition: stroke 0.35s; }
.router-map .trunk { stroke: var(--violet); }
.router-map .node-origin { fill: var(--violet); }
.router-map .node-junction { fill: var(--surface); stroke: var(--violet); stroke-width: 2.5; }
.router-map .branch.on { stroke: var(--violet); stroke-dasharray: 6 7; animation: flow 0.9s linear infinite; }
.router-map .dest circle { fill: var(--surface); stroke: var(--line); stroke-width: 2.5; transition: fill 0.35s, stroke 0.35s; }
.router-map .dest text { fill: var(--muted); font: 500 19px var(--font); transition: fill 0.35s; }
.router-map .dest.on circle { fill: var(--violet); stroke: var(--violet); }
.router-map .dest.on text { fill: var(--ink); font-weight: 700; }
@keyframes flow { to { stroke-dashoffset: -13; } }
@media (prefers-reduced-motion: reduce) { .router-map .branch.on { animation: none; stroke-dasharray: none; } }

.router figcaption {
  margin-top: 0.75rem; padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  font-size: 0.95rem; color: var(--muted); min-height: 3.3em;
}
.router figcaption b { color: var(--ink); }

/* Features */

.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.25rem, 3vw, 2.5rem);
  padding-block: 1rem clamp(3rem, 8vw, 6rem);
}
.features > div { border-top: 2px solid var(--teal); padding-top: 1rem; }
.features h2 { font-size: 1.05rem; margin: 0 0 0.4rem; letter-spacing: -0.01em; }
.features p { margin: 0; color: var(--muted); font-size: 0.97rem; }

/* Long-form sections */

.doc { padding-block: clamp(3rem, 7vw, 5rem); border-top: 1px solid var(--line); }
.doc > :not(.pair, .wide, .shots-strip, .side, .gatekeeper) { max-width: var(--measure); }
.section-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 2rem;
}
.doc h3 { font-size: 1.5rem; letter-spacing: -0.02em; line-height: 1.2; margin: 3.25rem 0 0.75rem; }
.doc h4 { font-size: 1.1rem; margin: 2rem 0 0.5rem; }
.doc p, .doc ul { margin: 0 0 1rem; }
.doc li { margin-bottom: 0.35rem; }
.path { display: inline; }

/* Install steps: a real sequence, so numbered. */

.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.doc > .steps { max-width: 48rem; }
.steps > li {
  counter-increment: step;
  position: relative;
  padding-left: 3.75rem;
  padding-bottom: 2.25rem;
  margin: 0;
}
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: -0.1rem;
  width: 2.4rem; height: 2.4rem;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 2px solid var(--teal);
  color: var(--teal);
  font-weight: 800; font-size: 1.1rem;
  background: var(--bg);
}
.steps > li:not(:last-child)::after {
  content: "";
  position: absolute; left: calc(1.2rem - 1px); top: 2.5rem; bottom: 0.25rem;
  border-left: 2px dotted var(--line);
}
.steps h3 { margin: 0 0 0.4rem; font-size: 1.3rem; }

/* Gatekeeper tabs */

.gatekeeper {
  margin: 1.5rem 0 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.tablist {
  display: flex; flex-wrap: wrap; gap: 0.25rem;
  padding: 0.4rem;
  background: var(--sunken);
}
.tablist [role="tab"] {
  flex: 1 0 auto;
  font: 600 0.92rem var(--font);
  color: var(--muted);
  background: transparent;
  border: 0; border-radius: 8px;
  padding: 0.55rem 0.8rem;
  cursor: pointer;
}
.tablist [role="tab"][aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
.tablist [role="tab"]:hover { color: var(--ink); }
.panel { padding: 1.25rem 1.4rem 0.4rem; }
.panel ol { padding-left: 1.3rem; margin: 0 0 1rem; }
.panel-title { margin: 0 0 0.75rem; font-size: 1rem; }
/* Without JavaScript every panel shows, each with its own title. */
.gatekeeper:not(.js) .tablist { display: none; }
.gatekeeper:not(.js) .panel + .panel { border-top: 1px solid var(--line); }
.gatekeeper.js .panel-title { display: none; }
.gatekeeper.js .panel[hidden] { display: none; }

.note { font-size: 0.93rem; color: var(--muted); }

/* A sketch of the System Settings row, to show what to look for. */
.mock {
  border: 1px solid var(--line);
  border-radius: 10px;
  margin: 0 0 1rem;
  font-size: 0.9rem;
  background: var(--bg);
}
.mock-head { padding: 0.5rem 0.85rem; font-weight: 700; border-bottom: 1px solid var(--line); }
.mock-row {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: 0.7rem 0.85rem;
}
.mock-button {
  padding: 0.2rem 0.75rem;
  border-radius: 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-weight: 600;
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}

.code { position: relative; margin: 0 0 1rem; }
.code pre {
  margin: 0;
  background: var(--sunken);
  border-radius: 10px;
  padding: 0.9rem 5.5rem 0.9rem 1rem;
  overflow-x: auto;
}
.code pre code { background: none; padding: 0; font-size: 0.9rem; overflow-wrap: normal; }
.copy {
  position: absolute; right: 0.5rem; top: 50%; transform: translateY(-50%);
  font: 600 0.85rem var(--font);
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
}

.why {
  border-left: 3px solid var(--teal);
  padding: 0.25rem 0 0.25rem 1rem;
  margin: 1.25rem 0 0;
}
.why summary { cursor: pointer; font-weight: 600; }
.why[open] summary { margin-bottom: 0.6rem; }
.why p { color: var(--muted); }

/* Screenshots. The PNGs carry their own window shadow, so no frame is added. */

.shots-strip {
  list-style: none; padding: 0; margin: 1.5rem 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 2rem;
  max-width: 56rem;
  counter-reset: shot;
}
.shots-strip li { margin: 0; counter-increment: shot; }
.shots-strip p { font-size: 0.93rem; color: var(--muted); margin: 0.25rem 0 0; }
.shots-strip p::before {
  content: counter(shot);
  display: inline-grid; place-items: center;
  width: 1.4rem; height: 1.4rem; margin-right: 0.4rem;
  border-radius: 50%;
  background: var(--teal); color: var(--bg);
  font-weight: 800; font-size: 0.8rem;
}
.shots-strip p b { color: var(--ink); }

figure { margin: 0; }
figcaption { font-size: 0.93rem; color: var(--muted); }
.pair {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem; margin: 1.5rem 0 1rem;
}
.pair figcaption, .wide figcaption { padding-inline: 5%; margin-top: -0.25rem; }
.wide { max-width: 34rem; margin: 1.5rem 0; }

.side {
  display: grid; grid-template-columns: minmax(0, 24rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem); align-items: start;
  max-width: 60rem;
}

.table-wrap { overflow-x: auto; margin: 0 0 1rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; padding: 0.55rem 0.9rem 0.55rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 700; }
td:first-child { white-space: nowrap; }
.keys td:first-child { width: 1%; padding-right: 1.5rem; }

.faq dt { font-weight: 700; margin-top: 1.25rem; }
.faq dd { margin: 0.25rem 0 0; color: var(--muted); }

/* Closing */

.cta { padding-block: clamp(3rem, 7vw, 5rem); border-top: 1px solid var(--line); }
.cta h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); letter-spacing: -0.025em; margin: 0 0 0.5rem; }
.cta p { color: var(--muted); margin: 0 0 1.5rem; }
.sponsor { margin-top: 2rem; }
.sponsor p { margin-bottom: 0.75rem; }
.sponsor iframe { display: block; }

.foot {
  max-width: var(--wide); margin: 0 auto;
  padding: 2rem var(--gutter) 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 0.9rem;
}
.foot p { margin: 0; max-width: var(--measure); }

/* Smaller screens */

@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .side { grid-template-columns: minmax(0, 1fr); }
  .side picture { max-width: 24rem; }
}
@media (max-width: 600px) {
  body { font-size: 1rem; }
  .features, .pair { grid-template-columns: minmax(0, 1fr); }
  .shots-strip { grid-template-columns: minmax(0, 1fr); }
  .steps > li { padding-left: 3rem; }
  .steps > li::before { width: 2rem; height: 2rem; font-size: 0.95rem; }
  .steps > li:not(:last-child)::after { left: calc(1rem - 1px); top: 2.1rem; }
  .panel { padding-inline: 1rem; }
  td:first-child { white-space: normal; }
}