/* Koventa — plaster chrome, colour only in the material bands */

:root {
  --paper: #e6e6df;
  --paper-2: #f3f2ed;
  --ink: #1c221f;
  --ink-2: #545b55;
  --rule: #c7c4b9;
  --rule-soft: rgba(28, 34, 31, .13);

  /* the six materials — the page's whole colour budget */
  --steel: #5e6872;
  --walnut: #7c5333;
  --graphite: #33373a;
  --lumen: #e3d2a4;
  --porcelain: #cbd6d2;
  --travertine: #a2917a;

  --measure: 60ch;
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --text: "Source Serif 4", Georgia, "Times New Roman", serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .display {
  font-family: var(--display);
  font-stretch: 118%;
  font-weight: 700;
  letter-spacing: -.028em;
  line-height: 1.03;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }
a { color: inherit; }

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

.wrap { width: min(100% - 2.5rem, 78rem); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--paper);
  padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- header ---------- */

.masthead {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color .2s ease, border-color .2s ease;
}
.masthead.is-scrolled {
  background: rgba(230, 230, 223, .93);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--rule);
}
.masthead-inner {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 4.5rem;
}
.brand {
  display: flex; align-items: center; gap: .6rem;
  text-decoration: none; margin-right: auto;
}
.brand img, .brand-logo { display: block; height: auto; }
.masthead nav { display: flex; align-items: center; gap: 1.5rem; }
.masthead nav a {
  font-family: var(--display);
  font-size: .92rem;
  font-weight: 500;
  text-decoration: none;
  padding-block: .25rem;
  border-bottom: 1px solid transparent;
}
.masthead nav a:hover { border-bottom-color: var(--ink); }
.lang { display: flex; gap: .5rem; padding-left: 1.5rem; border-left: 1px solid var(--rule); }
.lang a { color: var(--ink-2); }
.lang a[aria-current] { color: var(--ink); border-bottom-color: var(--ink); }

.menu-btn {
  display: none;
  font-family: var(--display); font-size: .92rem; font-weight: 500;
  background: none; border: 1px solid var(--rule); border-radius: 0;
  padding: .45rem .8rem; cursor: pointer; color: inherit;
}

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

.hero { padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 6vw, 5rem); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}
.hero h1 { font-size: clamp(2.9rem, 7.4vw, 6.4rem); font-weight: 800; }
.lede {
  margin-top: 1.75rem;
  max-width: var(--measure);
  font-size: 1.18rem;
  line-height: 1.65;
  color: var(--ink-2);
}

/* material key — doubles as navigation into the bands */
.key { display: grid; gap: .55rem; }
.key-item {
  display: grid; gap: .45rem;
  text-decoration: none;
  padding-block: .2rem;
}
.key-swatch {
  height: 14px;
  background: var(--c);
  transform-origin: left center;
  transition: transform .25s cubic-bezier(.2, .7, .3, 1);
}
.key-item:hover .key-swatch,
.key-item:focus-visible .key-swatch { transform: scaleY(1.7); }
.key-label {
  font-family: var(--display);
  font-size: .82rem;
  font-weight: 500;
  color: var(--ink-2);
  display: flex; justify-content: space-between; gap: 1rem;
}
.key-label i { font-style: normal; }

/* one orchestrated load moment: the samples draw in */
@media (prefers-reduced-motion: no-preference) {
  .key-swatch { animation: draw .55s cubic-bezier(.2, .7, .3, 1) backwards; }
  .key-item:nth-child(1) .key-swatch { animation-delay: .15s; }
  .key-item:nth-child(2) .key-swatch { animation-delay: .22s; }
  .key-item:nth-child(3) .key-swatch { animation-delay: .29s; }
  .key-item:nth-child(4) .key-swatch { animation-delay: .36s; }
  .key-item:nth-child(5) .key-swatch { animation-delay: .43s; }
  .key-item:nth-child(6) .key-swatch { animation-delay: .50s; }
  @keyframes draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}

/* ---------- sections with a side rail ---------- */

.rail {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(3.5rem, 7vw, 6rem);
  border-top: 1px solid var(--rule);
}
.rail-name {
  font-family: var(--display);
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink-2);
  align-self: start;
  position: sticky; top: 6rem;
}
.rail h2 { font-size: clamp(1.9rem, 3.6vw, 3.1rem); max-width: 22ch; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}
.split .statement, .split .claims { margin-top: 1.75rem; }

.statement {
  margin-top: 1.75rem;
  font-size: clamp(1.25rem, 2.1vw, 1.6rem);
  line-height: 1.55;
  max-width: 48ch;
}
.claims { margin: 2.75rem 0 0; padding: 0; list-style: none; max-width: 46ch; }
.claims li { padding: 1rem 0; border-top: 1px solid var(--rule-soft); }
.claims li:last-child { border-bottom: 1px solid var(--rule-soft); }

/* ---------- route: four stops, one line ---------- */

.route {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 2.5rem;
}
.stop {
  border-top: 2px solid var(--ink);
  padding: 1.5rem 1.75rem 0 0;
  position: relative;
}
.stop::before {
  content: "";
  position: absolute; top: -6px; left: 0;
  width: 10px; height: 10px;
  background: var(--ink);
}
.stop h3 { font-size: 1.12rem; font-weight: 600; letter-spacing: -.012em; }
.stop p { margin-top: .6rem; font-size: .97rem; color: var(--ink-2); }

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

.band {
  background-image: var(--band-img, none);
  background-color: var(--band);
  background-size: cover;
  background-position: center;
  color: var(--band-fg, #f6f5f1);
}
.band-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(3rem, 5.5vw, 4.75rem);
  align-items: start;
}
.band h3 { font-size: clamp(2rem, 4.4vw, 3.4rem); font-weight: 700; }
.band p { margin-top: 1.1rem; max-width: 46ch; }
.band-meta {
  font-family: var(--display);
  font-size: .88rem;
  line-height: 1.6;
  align-self: start;
}
.band-meta dt { font-size: .78rem; font-weight: 400; letter-spacing: .01em; }
.band-meta dd { margin: .1rem 0 1.15rem; font-weight: 600; }
.band-meta dd:last-child { margin-bottom: 0; }

.band-steel      { --band: var(--steel); }
.band-walnut     { --band: var(--walnut); }
.band-graphite   { --band: var(--graphite); }
.band-lumen      { --band: var(--lumen); --band-fg: var(--ink); }
.band-porcelain  { --band: var(--porcelain); --band-fg: var(--ink); }
.band-travertine { --band: var(--travertine); --band-fg: var(--ink); }

/* ---------- suppliers ---------- */

.origins {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 3rem);
  margin-top: 2.5rem;
}
.origin h3 { font-size: 1.45rem; font-weight: 600; }
.origin p { margin-top: .75rem; color: var(--ink-2); font-size: .99rem; }

/* ---------- contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  margin-top: 2.5rem;
}
.lines { margin: 0; }
.lines div { padding: 1.1rem 0; border-top: 1px solid var(--rule-soft); }
.lines div:last-child { border-bottom: 1px solid var(--rule-soft); }
.lines dt { font-family: var(--display); font-size: .88rem; color: var(--ink-2); }
.lines dd {
  margin: .15rem 0 0;
  font-family: var(--display); font-stretch: 118%; font-weight: 600;
  font-size: clamp(1.3rem, 2.2vw, 1.75rem); letter-spacing: -.02em; line-height: 1.2;
}
.lines a { text-decoration: none; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size .25s; }
.lines a:hover { background-size: 100% 1px; }
.pending {
  font-weight: 400; color: var(--ink-2);
  border-bottom: 1px dashed var(--rule);
}

.company {
  align-self: start;
  font-style: normal;
  background: var(--paper-2);
  border-top: 3px solid var(--ink);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}
.company-label { font-family: var(--display); font-size: .88rem; font-weight: 600; color: var(--ink-2); }
.company-name { margin-top: .9rem; font-family: var(--display); font-stretch: 118%; font-weight: 700; font-size: 1.3rem; letter-spacing: -.02em; }
.company-name + p { margin-top: .35rem; }
.company dl {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem;
  margin: 1.5rem 0 0; padding-top: 1.25rem; border-top: 1px solid var(--rule-soft);
}
.company dt { font-family: var(--display); font-size: .8rem; color: var(--ink-2); }
.company dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.company-map {
  display: inline-block; margin-top: 1.5rem;
  font-family: var(--display); font-size: .9rem; font-weight: 600;
  text-underline-offset: 3px; text-decoration-thickness: 1px;
}
.company-map::after { content: " \2197"; }

.mailto {
  display: inline-block;
  margin-top: 2rem;
  font-family: var(--display); font-weight: 600; font-size: .95rem;
  background: var(--ink); color: var(--paper);
  padding: .85rem 1.6rem;
  text-decoration: none;
}
.mailto:hover { background: var(--walnut); }

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

.colophon { background: var(--ink); color: rgba(243, 242, 237, .72); padding-block: 3rem; }
.colophon-inner { display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; justify-content: space-between; align-items: baseline; }
.colophon p { max-width: 40ch; font-size: .97rem; margin-top: .6rem; }
.colophon nav { display: flex; flex-wrap: wrap; gap: 1.25rem; font-family: var(--display); font-size: .9rem; }
.colophon a { text-decoration: none; }
.colophon nav a:hover { color: var(--paper-2); }

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

@media (max-width: 62rem) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .key { margin-top: 1rem; grid-template-columns: repeat(2, 1fr); gap: .55rem 1.5rem; }
  .rail { grid-template-columns: 1fr; gap: 1rem; }
  .split { grid-template-columns: 1fr; }
  .rail-name { position: static; }
  .route { grid-template-columns: 1fr; }
  .stop { border-top: none; border-left: 2px solid var(--ink); padding: 0 0 1.75rem 1.5rem; }
  .stop:last-child { padding-bottom: 0; }
  .stop::before { top: .45rem; left: -6px; }
  .band-inner { grid-template-columns: 1fr; }
  .band-meta { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 1.5rem; margin-top: 1.75rem; }
  .origins { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 48rem) {
  .menu-btn { display: block; margin-left: auto; }
  .masthead nav {
    display: none;
    flex-direction: column; align-items: flex-start; gap: .25rem;
    width: 100%; padding: .5rem 0 1.25rem;
  }
  .masthead[data-open] nav { display: flex; }
  .masthead[data-open] { background: var(--paper); border-bottom-color: var(--rule); }
  .masthead-inner { flex-wrap: wrap; gap: .75rem; }
  .masthead nav a { font-size: 1.05rem; padding-block: .4rem; }
  .lang { padding-left: 0; border-left: none; padding-top: .5rem; }
  .key { grid-template-columns: 1fr; }
}

/* ---------- products inside a band ---------- */

.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 2.5rem clamp(1.25rem, 2.5vw, 2rem);
  padding-bottom: clamp(3rem, 5.5vw, 4.75rem);
}
.product img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; }
.band .product-kind { margin-top: 1rem; font-family: var(--display); font-size: .78rem; }
.product h4 { margin: .2rem 0 0; font-family: var(--display); font-size: 1.12rem; font-weight: 600; letter-spacing: -.012em; }
.band .product p:last-child { margin-top: .5rem; font-size: .95rem; line-height: 1.6; }