/* Портфолио frolovov.ru — оформление.
   Правится руками, сборкой не трогается: build.py просто копирует файл. */

:root {
  --paper:     #F3F5F1;
  --surface:   #FFFFFF;
  --surface-2: #ECEFE9;
  --ink:       #161A17;
  --ink-soft:  #3D453F;
  --muted:     #6F786F;
  --rule:      #DBDFD5;
  --rule-soft: #E6E9E1;
  --accent:    #2A6A4B;
  --accent-2:  #1F5039;
  --hot:       #AB4E17;
  --shadow:    0 1px 2px rgba(20,26,20,.05), 0 14px 34px -20px rgba(20,26,20,.30);

  --f-display: "Bitter", Georgia, serif;
  --f-body:    "Golos Text", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono:    "IBM Plex Mono", ui-monospace, Consolas, monospace;

  --wrap: 1080px;
  --col: 68ch;
  --pad: clamp(18px, 5vw, 48px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:     #0C0F0D;
    --surface:   #141815;
    --surface-2: #1A201B;
    --ink:       #E8EDE6;
    --ink-soft:  #B6BFB6;
    --muted:     #7E8880;
    --rule:      #262D27;
    --rule-soft: #1E241F;
    --accent:    #56B285;
    --accent-2:  #7FCBA4;
    --hot:       #DE9055;
    --shadow:    0 1px 2px rgba(0,0,0,.5), 0 18px 40px -24px rgba(0,0,0,.9);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

/* ───────────────────────────── шапка */

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px var(--pad);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}

.brand { display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.brand b { font-family: var(--f-display); font-weight: 600; font-size: 16px; letter-spacing: -.01em; }
.brand span { font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em; color: var(--muted); }

.top nav { display: flex; gap: 20px; }
.top nav a {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
}
.top nav a:hover { color: var(--accent); }

/* ───────────────────────────── общая типографика */

.eyebrow {
  font-family: var(--f-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
}
.eyebrow a { color: var(--muted); }

h1 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(36px, 6.2vw, 64px);
  line-height: 1.04;
  letter-spacing: -.028em;
  text-wrap: balance;
  margin: 0 0 22px;
}

h2 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(23px, 3vw, 31px);
  line-height: 1.18;
  letter-spacing: -.018em;
  text-wrap: balance;
  margin: 0 0 16px;
}

h3 {
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -.01em;
  margin: 0 0 8px;
}

h4 {
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
}

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

.lede {
  font-size: clamp(18px, 2.1vw, 21px);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: var(--col);
}

.sec-title {
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 26px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

/* ───────────────────────────── главная */

.hero { padding: clamp(56px, 10vw, 116px) 0 clamp(40px, 6vw, 64px); }

.services { padding: clamp(32px, 5vw, 56px) 0; }

.svc {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 28px 34px;
}
.svc h3 { margin-bottom: 6px; }
.svc p { font-size: 15.5px; line-height: 1.55; color: var(--ink-soft); }

.cases { padding: clamp(40px, 6vw, 72px) 0; }

.cards { display: grid; gap: 26px; }
@media (min-width: 900px) { .cards { grid-template-columns: 1fr; } }

.card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--surface);
  border: 1px solid var(--rule-soft);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--rule); }

@media (min-width: 820px) {
  .card { grid-template-columns: 46% minmax(0, 1fr); }
}

.card-img { background: var(--surface-2); overflow: hidden; }
.card-img img {
  display: block;
  width: 100%;
  height: 100%;
  /* Сдвиг вправо: слева у скриншотов служебная панель, а показать надо суть */
  object-fit: cover;
  object-position: 68% center;
  min-height: 220px;
}

.card-body { padding: clamp(20px, 3vw, 30px); display: flex; flex-direction: column; gap: 12px; }
.card-body .meta {
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}
.card-body h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(21px, 2.4vw, 26px);
  letter-spacing: -.018em;
  margin: 0;
}
.card-sum { font-size: 16px; color: var(--ink-soft); margin: 0; }

.card-metrics { display: flex; flex-wrap: wrap; gap: 22px; margin: 2px 0 0; }
.card-metrics b, .metrics b {
  display: block;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  color: var(--hot);
}
.card-metrics span, .metrics span {
  display: block;
  font-size: 12.5px;
  line-height: 1.35;
  color: var(--muted);
  max-width: 15ch;
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--ink-soft);
  border: 1px solid var(--rule);
  padding: 3px 8px;
}

.more {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: auto;
  padding-top: 6px;
}

.empty { color: var(--muted); }

.about { padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 8vw, 90px); }
.about-body { max-width: var(--col); font-size: 17.5px; color: var(--ink-soft); }

/* ───────────────────────────── страница кейса */

.case-head { padding: clamp(40px, 7vw, 84px) 0 clamp(24px, 4vw, 40px); }

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  margin-top: 34px;
}
.facts > div { background: var(--surface); padding: 14px 16px; }
.facts span {
  display: block;
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.facts b { font-weight: 500; font-size: 15px; line-height: 1.35; }

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 26px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--rule);
}
.metrics b { font-size: clamp(26px, 3.4vw, 34px); }
.metrics span { max-width: 18ch; }

.case-body { padding: clamp(20px, 4vw, 40px) 0 clamp(48px, 7vw, 84px); }
.case-body article { max-width: var(--col); }

.case-body h2 {
  margin-top: clamp(40px, 5vw, 60px);
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}
.case-body h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.case-body h3 { margin-top: 30px; }

.case-body ul, .case-body ol { margin: 0 0 18px; padding-left: 22px; }
.case-body li { margin-bottom: 9px; color: var(--ink-soft); }

.case-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
  font-size: 16.5px;
}

.case-body hr { border: 0; border-top: 1px solid var(--rule); margin: 34px 0; }

.case-body code {
  font-family: var(--f-mono);
  font-size: .88em;
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
}

.code {
  margin: 24px 0;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--rule-soft);
  overflow-x: auto;
}
.code pre { margin: 0; font-family: var(--f-mono); font-size: 12.5px; line-height: 1.7; color: var(--ink-soft); }

.tbl { overflow-x: auto; margin: 24px 0; }
.case-body table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.case-body th, .case-body td {
  text-align: left;
  padding: 11px 16px 11px 0;
  border-bottom: 1px solid var(--rule-soft);
  vertical-align: top;
}
.case-body th {
  font-family: var(--f-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.case-body td:first-child { font-weight: 500; padding-right: 24px; }

/* картинки шире колонки текста — это главное, ради чего кейс существует */
.case-body figure {
  margin: 34px 0;
  width: min(var(--wrap), calc(100vw - 2 * var(--pad)));
  background: var(--surface);
  border: 1px solid var(--rule-soft);
  box-shadow: var(--shadow);
}
.case-body figure img { display: block; width: 100%; height: auto; border-bottom: 1px solid var(--rule-soft); }
.case-body figcaption { padding: 13px 17px 15px; font-size: 14.5px; line-height: 1.5; color: var(--ink-soft); }
.case-body figcaption b { display: block; font-weight: 600; color: var(--ink); margin-bottom: 2px; }

.next { padding: 0 0 clamp(48px, 7vw, 80px); }
.next .wrap { border-top: 1px solid var(--rule); padding-top: 26px; }
.next-link {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(21px, 2.6vw, 27px);
  letter-spacing: -.018em;
  text-decoration: none;
  color: var(--ink);
}
.next-link:hover { color: var(--accent); }
.next-link span { color: var(--accent); }

/* ───────────────────────────── подвал */

.foot { border-top: 1px solid var(--rule); padding: 30px 0 44px; }
.foot-grid { display: flex; flex-wrap: wrap; gap: 24px 40px; justify-content: space-between; }
.foot-grid > div:first-child { display: flex; flex-direction: column; }
.foot-grid b { font-family: var(--f-display); font-weight: 600; font-size: 16px; }
.foot-grid > div:first-child span { font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em; color: var(--muted); }

.foot-contacts { display: flex; flex-wrap: wrap; gap: 20px 34px; }
.foot-contacts a { display: flex; flex-direction: column; text-decoration: none; color: var(--ink); font-size: 15.5px; }
.foot-contacts a span {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}
.foot-contacts a:hover { color: var(--accent); }