/* hoseboy.com
   Palette: sun-bleached concrete, wet slate, seawater, brass pump fittings, hose red.
   Type: system grotesque set large and tight for headings, Georgia for reading,
   mono for anything that behaves like an instrument reading. */

:root {
  --ground:   #e4e1d7;
  --ground-2: #d6d3c6;
  --ink:      #131b1e;
  --ink-soft: #4c5c60;
  --rule:     #b6b1a1;
  --sea:      #0f4450;
  --jet:      #21807a;
  --brass:    #97671c;
  --hose:     #b4381c;
  --focus:    #0f4450;

  --font-display: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-body: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --font-util: ui-monospace, "Cascadia Mono", Consolas, "SF Mono", "DejaVu Sans Mono", monospace;

  --rail-w: 12rem;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --measure: 34rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground:   #0d1417;
    --ground-2: #162024;
    --ink:      #dee4e1;
    --ink-soft: #93a4a6;
    --rule:     #2c3a3e;
    --sea:      #6fc3c9;
    --jet:      #4bb5ab;
    --brass:    #d3a04f;
    --hose:     #e06541;
    --focus:    #6fc3c9;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration-color: var(--brass); text-underline-offset: 0.18em; }
a:hover { text-decoration-color: var(--hose); }

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--ground);
  padding: 0.6rem 1rem;
  font-family: var(--font-util);
  z-index: 20;
}
.skip:focus { left: 0; }

/* ---------- the elevation rail: the page is the climb ---------- */

.rail { display: none; }

@media (min-width: 68rem) {
  .rail {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.75rem;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--rail-w);
    padding: 3rem 0 3rem 1.75rem;
    border-right: 1px solid var(--rule);
    font-family: var(--font-util);
    font-size: 0.7rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    z-index: 10;
  }
  body { padding-left: var(--rail-w); }
}

.rail__cap { margin: 0; color: var(--ink-soft); opacity: 0.7; }
.rail__cap--low { margin-top: 0.25rem; }

.rail__list {
  list-style: none;
  margin: 0.5rem 0;
  padding: 0 0 0 0.9rem;
  border-left: 2px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.rail__list a {
  display: grid;
  grid-template-columns: 3.1rem 1fr;
  align-items: baseline;
  gap: 0.5rem;
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
}

.rail__list a::before {
  content: "";
  position: absolute;
  left: -1.05rem;
  top: 0.42em;
  width: 0.5rem;
  height: 2px;
  background: var(--rule);
}

.rail__m { font-variant-numeric: tabular-nums; text-align: right; color: var(--ink-soft); }
.rail__t { letter-spacing: 0.06em; }

.rail__list a:hover { color: var(--ink); }

.rail__list a[aria-current="true"] { color: var(--ink); }
.rail__list a[aria-current="true"] .rail__m { color: var(--brass); }
.rail__list a[aria-current="true"]::before {
  background: var(--brass);
  width: 1.15rem;
  left: -1.05rem;
}

/* ---------- masthead ---------- */

.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding: 1.6rem var(--gutter) 0;
  max-width: 78rem;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.wordmark::after {
  content: "";
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  margin-left: 0.35em;
  border-radius: 50%;
  background: var(--hose);
  vertical-align: 0.08em;
}

.masthead nav {
  display: flex;
  gap: clamp(0.9rem, 2.5vw, 1.9rem);
  font-family: var(--font-util);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.masthead nav a { text-decoration: none; color: var(--ink-soft); border-bottom: 1px solid transparent; padding-bottom: 2px; }
.masthead nav a:hover { color: var(--ink); border-bottom-color: var(--brass); }

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

.eyebrow {
  margin: 0 0 0.9rem;
  font-family: var(--font-util);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1, h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 1.3rem + 4.4vw, 4.6rem); }
h2 { font-size: clamp(1.7rem, 1.2rem + 1.9vw, 2.6rem); line-height: 1.08; }

.lede {
  font-size: clamp(1.06rem, 1rem + 0.35vw, 1.28rem);
  line-height: 1.55;
  max-width: 32rem;
}

.pull {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 1rem + 1.2vw, 1.85rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--sea);
  border-left: 3px solid var(--hose);
  padding-left: 1.1rem;
  margin-block: 2rem;
  max-width: 26rem;
}

.note {
  font-family: var(--font-util);
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--ink-soft);
  border-top: 1px solid var(--rule);
  padding-top: 0.9rem;
  max-width: var(--measure);
}
.note em { font-style: normal; color: var(--brass); }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block: 2rem 2.4rem;
}

.btn {
  display: inline-block;
  font-family: var(--font-util);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.72rem 1.35rem;
  background: var(--ink);
  color: var(--ground);
  border: 2px solid var(--ink);
}
.btn:hover { background: var(--hose); border-color: var(--hose); color: #f6f2ea; }

.btn--quiet { background: transparent; color: var(--ink); }
.btn--quiet:hover { background: transparent; color: var(--ink); border-color: var(--hose); }

/* ---------- spec lists: anything that reads like an instrument panel ---------- */

.spec {
  margin: 2rem 0 0;
  border-top: 1px solid var(--rule);
  max-width: var(--measure);
}
.spec > div {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.4rem 1.2rem;
  padding: 0.72rem 0;
  border-bottom: 1px solid var(--rule);
}
.spec dt {
  font-family: var(--font-util);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 0.22em;
}
.spec dd { margin: 0; font-size: 0.98rem; line-height: 1.45; }

@media (max-width: 34rem) {
  .spec > div { grid-template-columns: 1fr; gap: 0.15rem; }
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(3rem, 8vw, 6rem) var(--gutter) clamp(3rem, 7vw, 5.5rem);
  max-width: 78rem;
}

@media (min-width: 56rem) {
  .hero { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); }
}

.hero h1 { margin-bottom: 1.6rem; }
.hero .lede { margin: 0; }
.hero .actions { margin-block: 2.2rem 0; }
.hero .spec--hero { margin-top: 2.4rem; }

.hero__art { margin: 0; }
.art--mountain { width: 100%; height: auto; max-height: 78vh; }

figure { margin: 0; }

figcaption {
  margin-top: 0.9rem;
  font-family: var(--font-util);
  font-size: 0.74rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  max-width: 26rem;
}

.art { display: block; width: 100%; height: auto; }

/* ---------- bands ---------- */

.band {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: clamp(3rem, 7vw, 5.5rem) var(--gutter);
  max-width: 78rem;
  border-top: 1px solid var(--rule);
}

@media (min-width: 62rem) {
  .band { grid-template-columns: 15rem minmax(0, 1fr); align-items: start; }
  .band__head { position: sticky; top: 2.5rem; }
}

.band__head .eyebrow { margin-bottom: 0.7rem; }
.band__body > p { max-width: var(--measure); }
.band__body > p:first-child { margin-top: 0; }

@media (min-width: 62rem) {
  .band--figure { grid-template-columns: 15rem minmax(0, 1fr) minmax(0, 15rem); }
  .band--figure .band__art { position: sticky; top: 3rem; }
}

.band__art { margin: 0; }

.band--status { background: var(--ground-2); border-top-color: var(--ink); }

/* ---------- diagrams ---------- */

.loop, .ladder { margin-top: 2.6rem; }

.loop svg text, .ladder svg text {
  font-family: var(--font-util);
  fill: var(--ink);
}
.loop-title { font-size: 15px; letter-spacing: 0.04em; }
.loop-sub { font-size: 11px; fill: var(--ink-soft); letter-spacing: 0.04em; }
.ladder-label { font-size: 11px; fill: var(--ink-soft); letter-spacing: 0.1em; text-transform: uppercase; }
.ladder-node { font-size: 12px; letter-spacing: 0.08em; }
.ladder-note { font-size: 11px; fill: var(--ink-soft); letter-spacing: 0.04em; }

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

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: end;
  gap: 1.5rem 3rem;
  padding: clamp(2.5rem, 5vw, 4rem) var(--gutter) 3rem;
  max-width: 78rem;
  border-top: 2px solid var(--ink);
}

.foot__studio {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.foot__line, .foot__nav {
  font-family: var(--font-util);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.foot__line { margin: 0; }

.foot__nav { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.foot__nav a { text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 2px; }
.foot__nav a:hover { color: var(--ink); border-bottom-color: var(--hose); }

/* ---------- the one orchestrated moment: the pump line draws itself ---------- */

@media (prefers-reduced-motion: no-preference) {
  .art-pump {
    stroke-dasharray: 480;
    stroke-dashoffset: 480;
    animation: prime 2.4s 0.35s cubic-bezier(.5, 0, .2, 1) forwards;
  }
  .art-jet {
    opacity: 0;
    animation: charge 0.5s 1.9s ease-out forwards;
  }
}

@keyframes prime { to { stroke-dashoffset: 0; } }
@keyframes charge { to { opacity: 1; } }