/* Puruki — tufting a koberce, informační projekt */

:root {
  --bg: #14161a;
  --bg-alt: #1d2026;
  --bg-contrast: #e4e4e1;
  --text: #d8dbdf;
  --text-dim: #8a9098;
  --text-on-contrast: #14161a;
  --accent: #e8a33d;
  --accent-2: #4fb79a;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --gap: 128px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
}

/* --- grid --- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 0 24px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

.col-center-6 { grid-column: 4 / 10; }
.col-center-8 { grid-column: 3 / 11; }
.col-list-7 { grid-column: 4 / 11; }

/* --- typography --- */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: #ecedef;
}

h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.1rem);
  line-height: 1.22;
  margin: 0;
}

h2 {
  font-size: clamp(1.35rem, 2.1vw, 1.6rem);
  line-height: 1.35;
  margin: 0 0 22px;
}

h3 {
  font-size: 1.06rem;
  line-height: 1.45;
  margin: 40px 0 12px;
  color: #dfe1e4;
}

p { margin: 0 0 22px; max-width: 68ch; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

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

.lead {
  font-size: 1.06rem;
  color: var(--text-dim);
}

.caption {
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  margin: 18px 0 0;
  text-align: center;
}

.sec-num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 14px;
}

/* --- header / nav --- */
.site-head {
  padding: 34px 0 0;
}

.site-head .grid { align-items: baseline; }

.nav-row {
  grid-column: 1 / 13;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 8px 38px;
}

.brand {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #ecedef;
  text-decoration: none;
}

.brand:hover { color: var(--accent); }

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 34px;
}

.site-nav a {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent);
}

/* --- hero --- */
.hero {
  min-height: 74vh;
  display: flex;
  align-items: flex-end;
  padding: 120px 0 var(--gap);
}

.hero .grid { width: 100%; }

.hero-inner {
  grid-column: 3 / 11;
  text-align: center;
}

.hero-inner p {
  margin: 26px auto 0;
  max-width: 60ch;
  color: var(--text-dim);
}

/* --- sections --- */
section { padding: 0 0 var(--gap); }

.band {
  background: var(--bg-alt);
  padding: var(--gap) 0;
}

.band + section { padding-top: var(--gap); }

.contrast {
  background: var(--bg-contrast);
  color: var(--text-on-contrast);
  padding: var(--gap) 0;
}

.contrast h2,
.contrast h3 { color: #101216; }
.contrast .caption { color: #4a4f56; }
.contrast .sec-num { color: #2c7f6b; }
.contrast a { color: #a5661a; }
.contrast :focus-visible { outline-color: #a5661a; }

/* --- figures --- */
.fig-main {
  margin: 0;
  padding: 0 0 var(--gap);
}

.fig-main .grid > * { grid-column: 3 / 11; }

.fig-main img,
.fig-detail img {
  display: block;
  width: 100%;
  height: auto;
}

.split {
  display: contents;
}

.fig-detail {
  grid-column: 2 / 7;
  margin: 0;
}

.fig-detail .caption { text-align: left; }

.split-text { grid-column: 8 / 13; }

/* --- lists --- */
ul.plain, ol.plain {
  margin: 0 0 24px;
  padding: 0 0 0 1.1em;
}

ul.plain { list-style: none; padding-left: 0; }

ul.plain li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  max-width: 66ch;
}

ul.plain li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

ol.plain li { margin-bottom: 12px; max-width: 66ch; }
ol.plain li::marker { color: var(--accent-2); font-size: 13px; }

/* --- about / legal --- */
.doc { padding: 96px 0 var(--gap); }
.doc .grid > * { grid-column: 4 / 10; }
.doc .intro { font-size: 21px; line-height: 1.7; color: #e2e4e7; }
.doc h2 { margin-top: 12px; }

.rule {
  border: 0;
  color: var(--text-dim);
  text-align: center;
  margin: 72px 0;
  overflow: visible;
  height: 0;
}

.rule::after {
  content: "—";
  display: block;
  margin-top: -0.7em;
  color: var(--accent-2);
  font-size: 14px;
}

/* --- footer --- */
.site-foot {
  background: var(--bg-alt);
  padding: 112px 0 96px;
}

.foot-inner {
  grid-column: 3 / 11;
  text-align: center;
}

.foot-brand {
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin: 0 0 32px;
  color: #ecedef;
}

.foot-nav ul {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 40px;
}

.foot-nav a {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
}

.foot-nav a:hover { color: var(--accent); }

.foot-mail { margin: 0 0 26px; font-size: 15px; }

.foot-note {
  font-size: 12px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 56ch;
  margin: 0 auto;
}

/* --- responsive --- */
@media (max-width: 900px) {
  :root { --gap: 88px; }
  .col-center-6, .col-center-8, .col-list-7,
  .hero-inner, .foot-inner,
  .doc .grid > *,
  .fig-main .grid > * { grid-column: 1 / 13; }
  .fig-detail, .split-text { grid-column: 1 / 13; }
  .split-text { margin-top: 40px; }
}

@media (max-width: 620px) {
  :root { --gap: 72px; }
  body { font-size: 16.5px; }
  .grid { padding: 0 20px; }
  .hero { min-height: 66vh; padding: 72px 0 var(--gap); }
  .doc { padding: 64px 0 var(--gap); }
  .site-head { padding-top: 26px; }
  .nav-row { gap: 14px 24px; }
  .site-nav ul { gap: 8px 22px; }
  .site-foot { padding: 80px 0 64px; }
  .rule { margin: 56px 0; }
  .doc .intro { font-size: 19px; }
}