/* Wayfinder — wayfndr.dev landing page.
 *
 * The palette is the logo's, not a new one: warm paper (#E4E2DE was the
 * artwork's reference ground), near-black ink, and the mark's red used only as
 * an accent. That reads as a technical document rather than a SaaS gradient,
 * which is the register this product should be sold in.
 *
 * The page commits to one light theme deliberately. A dashboard has to follow
 * the operator's environment; a marketing page has one job and is better for
 * choosing a look. Rhythm comes from alternating paper and ink SECTIONS, not
 * from a colour-scheme toggle. See `.section--ink`, which re-points the same
 * tokens rather than overriding every rule inside it.
 */

/* ---------------------------------------------------------------- tokens -- */

:root {
  --paper: #e9e7e2;
  --paper-2: #f3f1ed;
  --paper-3: #dedbd4;
  --ink: #0a0a0a;
  --ink-2: #131519;
  --ink-3: #1c1f25;

  --text: #16171a;
  --muted: #55524c;
  /* Darkened from the mark's mid-grey until it clears WCAG AA (4.5:1) on
   * --paper at body sizes. This tier carries real copy — the hero note, the
   * diagram caption — not just ornament, so "faint" here means recessive,
   * not unreadable. */
  --faint: #68655d;
  --rule: #cbc7be;
  --rule-soft: #dcd8d0;

  --red: #d43735;
  --red-ink: #e8483f;
  --red-wash: rgb(212 55 53 / 8%);

  --ok: #2f7d4f;
  --warn: #a86718;

  --f-ui:
    Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    sans-serif;
  --f-display: "Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif;
  --f-mono:
    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1180px;
  --gut: clamp(1.25rem, 4vw, 3rem);
  --sec-y: clamp(3.25rem, 6vw, 5.5rem);
  --r: 10px;
  --r-lg: 16px;

  --ease: cubic-bezier(0.2, 0.7, 0.25, 1);
}

/* ------------------------------------------------------------------ base -- */

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

html {
  scroll-behavior: smooth;
  /* Anchored sections must clear the sticky header. */
  scroll-padding-top: 5.5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--paper);
  /* A very faint grain. Without it a flat warm field reads as "unfinished
   * beige" at large sizes; with it, as paper. Kept low enough to be felt
   * rather than seen, and it is a data URI so it costs no request. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.055'/%3E%3C/svg%3E");
  color: var(--text);
  font-family: var(--f-ui);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
}

a {
  color: inherit;
}

p {
  margin: 0 0 1em;
}

code {
  font-family: var(--f-mono);
  font-size: 0.88em;
  background: var(--paper-3);
  padding: 0.1em 0.36em;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper-2);
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip:focus {
  left: 0;
}

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

/* --------------------------------------------------------------- shared -- */

.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

/* The short rule after the label is the page's one repeating ornament; it is
 * what ties a section header to the terminal/spec-sheet register. */
.eyebrow::after {
  content: "";
  flex: 0 0 2.5rem;
  height: 1px;
  background: var(--red);
}

.eyebrow--tight {
  margin-bottom: 0.5rem;
}

.section__title,
.pilot__title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(1.95rem, 3.6vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0 0 1.1rem;
  max-width: 22ch;
}

.section__lede,
.lede {
  font-size: clamp(1.02rem, 1.35vw, 1.19rem);
  line-height: 1.62;
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 1.25em;
}

.section {
  padding-block: var(--sec-y);
  border-top: 1px solid var(--rule-soft);
}

.section--alt {
  background: linear-gradient(
    180deg,
    rgb(255 255 255 / 45%),
    rgb(255 255 255 / 0%)
  );
}

/* ---------------------------------------------------------------- button -- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-bd: var(--rule);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.82rem 1.35rem;
  border: 1px solid var(--btn-bd);
  border-radius: var(--r);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font: 500 0.95rem/1 var(--f-ui);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    transform 0.16s var(--ease),
    background-color 0.16s var(--ease),
    border-color 0.16s var(--ease),
    box-shadow 0.16s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  --btn-bg: var(--ink);
  --btn-fg: #f5f3ef;
  --btn-bd: var(--ink);

  box-shadow: 0 1px 2px rgb(10 10 10 / 18%);
}

.btn--primary:hover {
  --btn-bg: #22242a;

  box-shadow: 0 6px 18px rgb(10 10 10 / 20%);
}

.btn--ghost:hover {
  --btn-bd: var(--ink);
  --btn-bg: rgb(255 255 255 / 55%);
}

.btn--sm {
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
}

.btn--block {
  width: 100%;
  margin-bottom: 0.6rem;
}

.btn__icon {
  width: 15px;
  height: 15px;
  opacity: 0.65;
}

/* ------------------------------------------------------------------- nav -- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(233 231 226 / 82%);
  backdrop-filter: blur(12px) saturate(1.3);
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.2s var(--ease),
    background-color 0.2s var(--ease);
}

.nav.is-stuck {
  border-bottom-color: var(--rule);
  background: rgb(233 231 226 / 94%);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 4.4rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  margin-right: auto;
}

.nav__mark {
  width: 34px;
  height: auto;
  display: block;
}

.nav__word {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  gap: 1.75rem;
}

.nav__links a {
  font-size: 0.92rem;
  color: var(--muted);
  text-decoration: none;
  position: relative;
  padding-block: 0.25rem;
  transition: color 0.16s var(--ease);
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1.5px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s var(--ease);
}

.nav__links a:hover {
  color: var(--text);
}

.nav__links a:hover::after {
  transform: scaleX(1);
}

/* ------------------------------------------------------------------ hero -- */

.hero {
  padding-block: clamp(3rem, 6vw, 5rem) clamp(3.5rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
}

/* A single soft warm bloom behind the visual, so the hero has depth without a
 * gradient that would fight the paper. */
.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 70vw;
  height: 70vw;
  max-width: 900px;
  max-height: 900px;
  background: radial-gradient(
    circle,
    rgb(255 255 255 / 70%) 0%,
    rgb(255 255 255 / 0%) 62%
  );
  pointer-events: none;
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.hero__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(2.7rem, 5.6vw, 4.3rem);
  line-height: 1.01;
  letter-spacing: -0.038em;
  margin: 0 0 1.3rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero__note {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  max-width: 46ch;
  margin: 1.75rem 0 0;
  font-size: 0.875rem;
  color: var(--faint);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  flex: none;
  /* Aligns the dot to the first line's optical centre rather than the centre
   * of a block that wraps to two. */
  margin-top: 0.5em;
  box-shadow: 0 0 0 0 rgb(212 55 53 / 45%);
  animation: pulse 2.6s var(--ease) infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgb(212 55 53 / 45%);
  }

  70%,
  100% {
    box-shadow: 0 0 0 9px rgb(212 55 53 / 0%);
  }
}

/* ------------------------------------------------------- hero visual -- */

.viz {
  margin: 0;
}

.viz__frame {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 0.5rem;
  box-shadow:
    0 1px 2px rgb(10 10 10 / 5%),
    0 18px 44px rgb(10 10 10 / 8%);
  /* A faint engineering grid under the graph — the sheet the diagram is drawn
   * on, and it makes the node motion legible against something fixed. */
  background-image:
    linear-gradient(rgb(10 10 10 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(10 10 10 / 4%) 1px, transparent 1px);
  background-size: 26px 26px;
}

#mesh {
  display: block;
  width: 100%;
  height: auto;
}

.viz__hud {
  position: absolute;
  left: 1.1rem;
  bottom: 1.1rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgb(243 241 237 / 88%);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
}

.viz__hud-label {
  color: var(--faint);
}

.viz__hud-value {
  color: var(--text);
  font-weight: 500;
}

.viz__hud-value.is-alarm {
  color: var(--red);
}

.viz__cap {
  margin-top: 0.9rem;
  font-size: 0.83rem;
  line-height: 1.5;
  color: var(--faint);
  max-width: 46ch;
}

/* mesh graph primitives (driven by mesh.js) */
.mesh-link {
  stroke: #b9b4a9;
  stroke-width: 1.5;
  transition:
    stroke 0.4s var(--ease),
    opacity 0.4s var(--ease);
}

.mesh-link.is-down {
  stroke: var(--red);
  stroke-dasharray: 4 5;
  opacity: 0.5;
}

.mesh-route {
  stroke: var(--ink);
  stroke-width: 2.25;
  stroke-linecap: round;
  fill: none;
}

.mesh-node {
  fill: var(--paper-2);
  stroke: var(--ink);
  stroke-width: 1.75;
}

.mesh-node.is-endpoint {
  fill: var(--ink);
}

.mesh-halo {
  fill: none;
  stroke: var(--red);
  stroke-width: 1.5;
}

.mesh-packet {
  fill: var(--red);
}

.mesh-label {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  fill: var(--faint);
  text-transform: uppercase;
  /* The endpoint labels sit where links pass. `paint-order: stroke` draws the
   * halo *under* the glyphs, so a label crossing a link stays readable without
   * needing a background rect that would have to be sized to the text. */
  paint-order: stroke;
  stroke: var(--paper-2);
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* ----------------------------------------------------------------- proof -- */

.proof {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: rgb(255 255 255 / 34%);
}

.proof__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.proof__item {
  padding: 2rem 1.6rem 2.1rem 0;
  border-right: 1px solid var(--rule-soft);
}

.proof__item:first-child {
  padding-left: 0;
}

.proof__item:last-child {
  border-right: 0;
  padding-right: 0;
}

.proof__item + .proof__item {
  padding-left: 1.6rem;
}

.proof__k {
  font-family: var(--f-mono);
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0 0 0.5rem;
  color: var(--text);
  /* Reserve two lines so a heading that wraps does not push its own body copy
   * out of line with the three columns beside it. */
  min-height: 3.2em;
}

.proof__v {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--muted);
}

/* ------------------------------------------------------------- 3 columns -- */

.cols {
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 3rem);
  margin-top: 3.25rem;
}

.cols--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.col {
  border-top: 2px solid var(--ink);
  padding-top: 1.1rem;
}

.col__num {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--red);
  margin: 0 0 0.6rem;
}

.col__title {
  font-family: var(--f-display);
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 0.55rem;
}

.col p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

/* -------------------------------------------------------------- features -- */

.feat {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 3.25rem;
}

.feat__card {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 2.5vw, 2.1rem);
  transition:
    border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease),
    transform 0.2s var(--ease);
}

/* Two of the four feature cards explain something inherently spatial — where
 * the same routing runs, and how several links meet at one node. A drawing
 * states either in a fraction of the words the paragraph needed, which is why
 * these two cards carry one and the other two do not. */
.dia {
  display: block;
  width: 100%;
  /* The drawing is scaled by its container, so cap it: in a single-column card
   * an uncapped viewBox would render these 11px labels at nearly 20px. */
  max-width: 420px;
  height: auto;
  margin: 0 0 1.15rem;
}

.dia__box {
  fill: var(--paper);
  stroke: var(--rule);
  stroke-width: 1;
}

.dia__link {
  fill: none;
  stroke: var(--rule);
  stroke-width: 1.5;
  stroke-linecap: round;
}

.dia__node,
.dia__bus {
  fill: var(--ink);
}

.dia__t,
.dia__bus-t,
.dia__node-t {
  font-family: var(--f-mono);
  font-size: 11px;
  text-anchor: middle;
}

.dia__t {
  fill: var(--muted);
}

.dia__bus-t,
.dia__node-t {
  fill: var(--paper);
}

.dia__node-t {
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

.feat__card:hover {
  border-color: #b6b0a4;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgb(10 10 10 / 7%);
}

.feat__icon {
  width: 42px;
  height: 42px;
  border-radius: 9px;
  background: var(--ink);
  display: grid;
  place-items: center;
  margin-bottom: 1.15rem;
}

.feat__icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: #f3f1ed;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* The encryption card is a menu rather than an argument: three tiers a buyer
 * picks from, so it is set as a keyed list instead of the prose the other
 * cards carry. */
.tiers {
  list-style: none;
  /* `.feat__card p` zeroes paragraph margins, so the lede above this list has
   * nothing holding it off the first tier label. */
  margin: 1.25rem 0 0;
  padding: 0;
}

.tiers li {
  border-top: 1px solid var(--rule-soft);
  padding: 0.85rem 0 0;
  margin-top: 0.85rem;
  /* Match the card's own paragraph register — these are body copy, not list
   * items in a different voice. */
  color: var(--muted);
  font-size: 0.94rem;
}

.tiers li:first-child {
  border-top: 0;
  padding-top: 0;
  margin-top: 0;
}

.tiers__k {
  display: block;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.3rem;
}

.feat__title {
  font-family: var(--f-display);
  font-size: 1.28rem;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin: 0 0 0.6rem;
}

.feat__card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

/* A card that carries a caveat as well as a claim (the encryption note, the
 * no_std detail) runs to two paragraphs; the rule above zeroes every margin,
 * so without this they set solid. */
.feat__card p + p {
  margin-top: 0.85rem;
}

/* ------------------------------------------------------------ ink section -- */

.section--ink {
  background: var(--ink-2);
  color: #eceae5;
  border-top: 0;

  /* Re-point the shared tokens instead of overriding every descendant rule —
   * the same trick the dashboard uses for its themes. */
  --text: #f2f0eb;
  --muted: #a6a29a;
  --faint: #96918a;
  --rule: #2b2e35;
  --rule-soft: #23262c;
  --paper-2: #1c1f25;
  --paper-3: #262a31;
  --red: var(--red-ink);
}

.section--ink .eyebrow::after {
  background: var(--red-ink);
}

/* --------------------------------------------------------- deploy cards -- */

.deploy {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}

.deploy__card {
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  background: var(--paper-2);
  padding: 1.5rem 1.35rem 1.4rem;
  display: flex;
  flex-direction: column;
  transition:
    border-color 0.2s var(--ease),
    background-color 0.2s var(--ease);
}

.deploy__card:hover {
  border-color: #3c414b;
  background: var(--paper-3);
}

.deploy__n {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--red-ink);
  margin: 0 0 0.9rem;
}

.deploy__title {
  font-family: var(--f-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 0.6rem;
}

.deploy__card p {
  font-size: 0.89rem;
  color: var(--muted);
  margin: 0;
}

.deploy__meta {
  margin-top: auto !important;
  padding-top: 1.1rem;
  font-family: var(--f-mono);
  font-size: 0.68rem !important;
  letter-spacing: 0.06em;
  color: var(--faint) !important;
}

/* The evidence line closing the deployment section. Sits below the cards, so
 * it needs the gap the cards' own grid does not provide. */
/* The evidence line. It sat at the page's faintest tier, which styled the one
 * hard credibility claim on the page as though it were a disclaimer. Lift it to
 * body copy: this is a statement of fact, not fine print. */
.proven {
  color: var(--muted);
  font-size: 0.92rem;
}

/* ------------------------------------------------------------- use cases -- */

.uses {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.25rem);
  margin-top: 3.25rem;
}

.use {
  border-top: 2px solid var(--ink);
  padding-top: 1.2rem;
}

/* The use cases are not peers: one is the segment the page leads with, and the
 * other two are secondary. The lead spans the grid and sets larger, so the
 * hierarchy is visible before any of it is read. */
.use--lead {
  grid-column: 1 / -1;
}

.use--lead .use__title {
  font-size: 1.55rem;
}

.use--lead p {
  font-size: 1.02rem;
  max-width: 68ch;
}

.use__title {
  font-family: var(--f-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin: 0 0 0.65rem;
}

.use p {
  color: var(--muted);
  font-size: 0.94rem;
  margin: 0 0 1.1rem;
}

.use__pts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.use__pts li {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  background: rgb(255 255 255 / 45%);
}

/* ----------------------------------------------------------------- pilot -- */

.pilot {
  padding-block: var(--sec-y);
  border-top: 1px solid var(--rule-soft);
  background:
    radial-gradient(
      ellipse at 15% 0%,
      var(--red-wash) 0%,
      rgb(212 55 53 / 0%) 55%
    ),
    rgb(255 255 255 / 30%);
}

.pilot__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.steps {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

/* What the pilot actually costs the partner in effort, set apart from the
 * three steps it qualifies. */
.pilot__shape {
  margin: 2.25rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.94rem;
  color: var(--muted);
  max-width: 60ch;
}

.step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.1rem;
  align-items: start;
}

.step__n {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  font-weight: 500;
  flex: none;
}

.step__title {
  font-family: var(--f-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0.15rem 0 0.35rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.pilot__card {
  position: sticky;
  top: 6rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 2.5vw, 2rem);
  box-shadow: 0 14px 40px rgb(10 10 10 / 7%);
}

.pilot__card-k {
  font-family: var(--f-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 0.6rem;
}

.pilot__card-p {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.pilot__card-fine {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: var(--faint);
  text-align: center;
}

.pilot__card-fine a {
  color: var(--muted);
  text-decoration-color: var(--rule);
  text-underline-offset: 2px;
}

/* ---------------------------------------------------------------- footer -- */

.foot {
  background: var(--ink);
  color: #b9b5ac;
  padding-block: 3.25rem 2.5rem;
}

.foot__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: start;
}

/* The mono mark is `fill="currentColor"`, which does NOT resolve through an
 * `<img>` — the browser renders a referenced SVG in its own document context,
 * so it would come out black on this black footer. A mask keys off the alpha
 * channel instead and takes its colour from `background-color`, which is the
 * fix assets/logo/README.md calls for. */
.foot__mark {
  display: block;
  width: 46px;
  height: 32px;
  margin-bottom: 0.9rem;
  background-color: #f3f1ed;
  mask: url("/wayfinder-mark-mono.svg") no-repeat center / contain;
}

.foot__tag {
  margin: 0;
  font-size: 0.88rem;
  color: #8f8b83;
  max-width: 30ch;
}

.foot__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: flex-end;
}

.foot__links a {
  font-size: 0.88rem;
  color: #b9b5ac;
  text-decoration: none;
  transition: color 0.16s var(--ease);
}

.foot__links a:hover {
  color: #f3f1ed;
}

/* ------------------------------------------------------------ responsive -- */

@media (width <= 1000px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .proof__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof__item {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--rule-soft);
  }

  .proof__item:nth-child(2n) {
    border-right: 0;
    padding-right: 0;
  }

  .proof__item:nth-child(2n + 1) {
    padding-left: 0;
  }

  .proof__item:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .deploy {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .pilot__card {
    position: static;
  }
}

/* Between these two widths the cards are still side by side but much narrower,
 * which scales the diagram labels down to around 8px. Scale them back up. */
@media (780px < width <= 1000px) {
  .dia__t,
  .dia__bus-t {
    font-size: 13px;
  }

  .dia__node-t {
    font-size: 11px;
  }
}

@media (width <= 780px) {
  .nav__links {
    display: none;
  }

  .cols--3,
  .feat,
  .uses {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .foot__links {
    justify-content: flex-start;
  }
}

@media (width <= 560px) {
  body {
    font-size: 16px;
  }

  /* The eyebrow is a flex row of label + rule. Once the label wraps to two
   * lines the rule lands alone at the end of the second, which reads as a
   * stray mark rather than an ornament. Drop it at this width. */
  .eyebrow::after {
    display: none;
  }

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

  .proof__item {
    border-right: 0;
    padding-inline: 0;
  }

  /* Stacked in one column, there is nothing beside a heading to line up with,
   * so drop the reserved second line. */
  .proof__k {
    min-height: 0;
  }

  .hero__actions .btn {
    flex: 1 1 100%;
  }
}

/* The mesh animation is the page's one moving part that could plausibly
 * bother someone; mesh.js also checks this and renders a static converged
 * graph instead of driving the packet. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}