/* Гром-Строй, вариант D — «Задача → Решение».
   Тот же материал, что у A/B/C (тёмный металл, грунтовый оранжевый, PT Sans/PT Mono,
   линии вместо теней), но ось другая: вход по симптому, а не по марке и не по услуге. */

:root {
  --bg: #141414;
  --raised: #1b1b1b;
  --line: #343434;
  --line-soft: #262626;
  --paper: #e9e6df;
  --dim: #a5a099;
  --accent: #f36600;
  --mono: "PT Mono", "Liberation Mono", monospace;
  --sans: "PT Sans", "Liberation Sans", Arial, sans-serif;
  --maxw: 1160px;
}

@font-face {
  font-family: "PT Sans";
  src: url("assets/fonts/ptsans-400-cyr.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "PT Sans";
  src: url("assets/fonts/ptsans-400-lat.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "PT Sans";
  src: url("assets/fonts/ptsans-700-cyr.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "PT Sans";
  src: url("assets/fonts/ptsans-700-lat.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "PT Mono";
  src: url("assets/fonts/ptmono-cyr.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "PT Mono";
  src: url("assets/fonts/ptmono-lat.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--paper);
  font: 400 16px/1.55 var(--sans);
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

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

.top {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.top__in {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.top__name a {
  font: 700 20px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  text-decoration: none;
}

.top__meta {
  font: 400 12px/1.4 var(--mono);
  color: var(--dim);
  letter-spacing: .04em;
}

/* ---------- intro ---------- */

.intro { padding: 56px 24px 40px; }

.intro h1 {
  margin: 0 0 20px;
  font: 700 56px/1.02 var(--sans);
  letter-spacing: -.02em;
}

.intro__text {
  max-width: 64ch;
  margin: 0 0 28px;
  font-size: 17px;
  color: #cfcbc4;
}

.intro__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 0 0 32px;
}

.intro__stats > div {
  flex: 1 1 180px;
  padding: 14px 18px 14px 0;
  border-right: 1px solid var(--line-soft);
}

.intro__stats > div:last-child { border-right: 0; }

.intro__stats b {
  display: block;
  font: 700 30px/1 var(--mono);
  color: var(--accent);
}

.intro__stats span {
  display: block;
  margin-top: 6px;
  font: 400 12px/1.3 var(--mono);
  color: var(--dim);
}

/* the task index: the whole point of D — a numbered list of symptoms */

.toc {
  list-style: none;
  counter-reset: t;
  margin: 0 0 24px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.toc li {
  counter-increment: t;
  border-bottom: 1px solid var(--line-soft);
}

.toc a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 2px;
  text-decoration: none;
  font-size: 18px;
}

.toc a::before {
  content: counter(t, decimal-leading-zero);
  font: 400 12px/1 var(--mono);
  color: var(--accent);
  min-width: 22px;
}

.toc a span {
  margin-left: auto;
  font: 400 13px/1 var(--mono);
  color: var(--dim);
  border: 1px solid var(--line);
  padding: 3px 8px;
}

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

.intro__note {
  max-width: 64ch;
  margin: 0;
  font: 400 13px/1.6 var(--mono);
  color: var(--dim);
}

/* ---------- task sections ---------- */

.task { border-top: 1px solid var(--line); padding: 40px 0 8px; }

.task__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
}

.task__head h2 {
  margin: 0;
  font: 700 28px/1.15 var(--sans);
  letter-spacing: -.01em;
}

.task__count {
  font: 400 13px/1 var(--mono);
  color: var(--accent);
  border: 1px solid var(--line);
  padding: 4px 9px;
  white-space: nowrap;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  text-decoration: none;
  padding-bottom: 16px;
}

.card:hover { background: var(--raised); }

.card__photo {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #101010;
  border-bottom: 1px solid var(--line-soft);
}

.card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__photo--none {
  display: flex;
  align-items: center;
  justify-content: center;
  font: 400 11px/1 var(--mono);
  color: #5c5852;
  letter-spacing: .06em;
}

.card__body { padding: 14px 16px 0; }

.card__meta {
  font: 400 11px/1.4 var(--mono);
  color: var(--accent);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.card__title {
  margin: 7px 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
}

.card__lead {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--dim);
}

.card__more {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
  font: 400 11px/1.4 var(--mono);
  color: #8b8781;
}

.tail {
  padding: 14px 0 0;
  font: 400 12px/1.4 var(--mono);
  color: var(--dim);
}

/* ---------- archive ---------- */

.crumb {
  margin: 24px 0 0;
  font: 400 12px/1 var(--mono);
}

.crumb a { color: var(--accent); text-decoration: none; }

.archive-h {
  margin: 14px 0 18px;
  font: 700 40px/1.05 var(--sans);
}

.work {
  display: grid;
  grid-template-columns: 168px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid var(--line-soft);
}

.work__side {
  font: 400 12px/1.7 var(--mono);
  color: var(--dim);
  padding-top: 4px;
}

.work__no { color: var(--accent); font-size: 14px; }
.work__date, .work__brand, .work__cnt { display: block; }

.work__main h2 {
  margin: 0 0 10px;
  font: 700 24px/1.2 var(--sans);
}

.work__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.chip {
  font: 400 11px/1 var(--mono);
  color: var(--dim);
  border: 1px solid var(--line);
  padding: 5px 8px;
  text-decoration: none;
  letter-spacing: .03em;
}

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

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  margin-bottom: 16px;
}

.gallery figure { margin: 0; background: var(--bg); }

.gallery img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
}

.gallery figcaption {
  padding: 7px 10px;
  font: 400 10.5px/1 var(--mono);
  color: #6f6b65;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.work__text {
  margin: 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.62;
  color: #cfcbc4;
  white-space: pre-wrap;
}

.muted { color: #6f6b65; font-style: italic; }

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

.foot { border-top: 1px solid var(--line); margin-top: 40px; }

.foot__in {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  padding-bottom: 28px;
  font: 400 11.5px/1.6 var(--mono);
  color: var(--dim);
}

/* ---------- small screens ---------- */

@media (max-width: 760px) {
  .intro { padding-top: 36px; }
  .intro h1 { font-size: 34px; }
  .intro__stats > div { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .task__head { flex-direction: column; gap: 8px; align-items: flex-start; }
  .task__head h2 { font-size: 22px; }
  .work { grid-template-columns: 1fr; gap: 10px; }
  .work__side { display: flex; gap: 14px; flex-wrap: wrap; padding-top: 0; }
  .top__in { flex-direction: column; gap: 6px; }
  .gallery img { height: 170px; }
  .archive-h { font-size: 28px; }
  .foot__in { flex-direction: column; }
}

@media (max-width: 420px) {
  .cards { grid-template-columns: 1fr; }
  .toc a { font-size: 16px; }
}