/* lab.hel3an.ru */

:root {
  --bg: #0a0a0a;
  --surface: #131313;
  --surface-2: #1c1c1c;
  --line: #262626;
  --line-soft: #1a1a1a;
  --text: #dcdcdc;
  --text-soft: #a9a9a9;
  --meta: #8391a1;
  --accent: #5c93c4;
  --accent-deep: #4682b4;
  --ink-on-accent: #0a0a0a;

  --serif: Georgia, "Iowan Old Style", "Times New Roman", Times, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-hero: clamp(3.1rem, 9vw, 6.2rem);
  --fs-title: clamp(2.1rem, 5.2vw, 3.3rem);
  --fs-cta: clamp(1.9rem, 4.4vw, 2.9rem);
  --fs-h2: 1.5rem;
  --fs-h3: 1.0625rem;
  --fs-body: 1.0625rem;
  --fs-excerpt: 0.9375rem;
  --fs-meta: 0.8125rem;

  --gap: 1.5rem;
  --radius: 10px;
}

*, *::before, *::after { 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: var(--fs-body);
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

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

.wrap {
  width: 100%;
  max-width: 76rem;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.col { max-width: 44rem; margin: 0 auto; }

/* ── навигация ───────────────────────────────────────── */

.nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  justify-self: start;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
}

.brand svg { display: block; flex: none; }

.nav-mid { justify-self: center; }
.brand:hover { color: #fff; }

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1.7rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-meta);
  color: var(--text-soft);
}

.nav-links a:hover { color: #fff; }
.nav-links [aria-current="page"] { color: var(--text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  justify-self: end;
  font-size: var(--fs-meta);
  color: var(--text-soft);
}

.nav-actions a:hover { color: #fff; }

.pill {
  display: inline-block;
  padding: 0.42rem 0.95rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--ink-on-accent);
  font-weight: 500;
  line-height: 1.2;
}

.pill:hover { background: #7aa9d3; color: var(--ink-on-accent); }

/* ── обложка страницы ────────────────────────────────── */

.hero {
  padding: clamp(3.5rem, 9vw, 7.5rem) 0 clamp(2.5rem, 5vw, 4rem);
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-hero);
  line-height: 1.02;
  letter-spacing: -0.022em;
}

.hero .lede {
  margin: 1.5rem auto 0;
  max-width: 34rem;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.55;
}

.hero.compact { padding-bottom: clamp(1.8rem, 3.5vw, 2.6rem); }
.hero.compact h1 { font-size: var(--fs-title); }

/* ── табы рубрик ─────────────────────────────────────── */

.tabbar { border-top: 1px solid var(--line-soft); }

.tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 1.6rem 0 0;
  font-size: var(--fs-meta);
}

.tabs a {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  color: var(--text-soft);
}

.tabs a:hover { background: var(--surface); color: var(--text); }

.tabs .on a,
.tabs a[aria-current="page"] {
  background: var(--surface-2);
  color: #fff;
}

/* ── сетка карточек ──────────────────────────────────── */

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2.6rem var(--gap);
  list-style: none;
  margin: 2.6rem 0 0;
  padding: 0;
}

.card { display: flex; flex-direction: column; }

.card-media {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  aspect-ratio: 16 / 10;
}

.card-media img { width: 100%; height: 100%; object-fit: cover; }

.card:hover .card-media img { opacity: 0.82; }

.card-meta {
  display: block;
  margin: 0.95rem 0 0;
  color: var(--meta);
  font-size: var(--fs-meta);
}

.card h3 {
  margin: 0.4rem 0 0;
  font-size: var(--fs-h3);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.005em;
}

.card:hover h3 { color: #fff; }

.card .excerpt {
  display: block;
  margin: 0.5rem 0 0;
  color: var(--text-soft);
  font-size: var(--fs-excerpt);
  line-height: 1.5;
}

.group {
  margin: 2.6rem 0 0;
  padding-top: 1.8rem;
  border-top: 1px solid var(--line-soft);
}

.group.first { border-top: 0; padding-top: 0; margin-top: 0; }

.group h2 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-soft);
}

.group .grid { margin-top: 1.6rem; }

/* ── архив: плотные строки ───────────────────────────── */

.rows {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
}

.rows li + li { border-top: 1px solid var(--line-soft); }

.row {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  gap: 1.6rem;
  align-items: center;
  padding: 1.3rem 0;
}

.row-media {
  display: block;
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
  aspect-ratio: 16 / 10;
}

.row-media img { width: 100%; height: 100%; object-fit: cover; }
.row:hover .row-media img { opacity: 0.82; }

.row .card-meta { margin: 0; }

.row h3 {
  margin: 0.35rem 0 0;
  font-size: 1.19rem;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.012em;
}

.row:hover h3 { color: #fff; }

.row .excerpt {
  display: block;
  margin: 0.45rem 0 0;
  max-width: 52ch;
  color: var(--text-soft);
  font-size: var(--fs-excerpt);
  line-height: 1.5;
}

/* ── строка постраничной навигации ───────────────────── */

.pager {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-meta);
  color: var(--text-soft);
}

.pager .steps {
  display: flex;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  justify-self: center;
}

.pager .steps a {
  display: inline-block;
  min-width: 2rem;
  padding: 0.4rem 0.6rem;
  border-radius: 999px;
  text-align: center;
  color: var(--text-soft);
}

.pager .steps a:hover { background: var(--surface); color: var(--text); }
.pager .steps .now a { background: var(--surface-2); color: #fff; }
.pager .end { justify-self: end; }
.pager a:hover { color: #fff; }

/* ── завершающий блок ────────────────────────────────── */

.closer {
  padding: clamp(5rem, 11vw, 9rem) 0 clamp(4rem, 8vw, 7rem);
  text-align: center;
}

.closer p {
  margin: 0 auto;
  max-width: 20ch;
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-cta);
  line-height: 1.12;
  letter-spacing: -0.018em;
}

.closer .pill { margin-top: 2.2rem; padding: 0.6rem 1.35rem; font-size: 0.9375rem; }

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

.site-foot {
  border-top: 1px solid var(--line-soft);
  padding: 1.4rem 0 2.6rem;
  font-size: var(--fs-meta);
  color: var(--text-soft);
}

.site-foot .row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem 1.6rem;
}

.site-foot ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-foot a:hover { color: #fff; }

/* ── статья ──────────────────────────────────────────── */

.article-head {
  padding: clamp(2.6rem, 6vw, 5rem) 0 0;
  text-align: center;
}

.article-head .kicker {
  margin: 0;
  color: var(--meta);
  font-size: var(--fs-meta);
}

.article-head h1 {
  margin: 1rem auto 0;
  max-width: 20ch;
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-title);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.article-head .standfirst {
  margin: 1.25rem auto 0;
  max-width: 38rem;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.55;
}

.cover {
  margin: clamp(2.2rem, 5vw, 3.4rem) auto 0;
  max-width: 50rem;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.cover img { width: 100%; }

.prose { padding: clamp(2.4rem, 5vw, 3.6rem) 0 0; }

.prose p { margin: 1.35rem 0; }

.prose h2 {
  margin: 2.9rem 0 0.7rem;
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-h2);
  letter-spacing: -0.012em;
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.prose a:hover { color: #8fb8dd; }

.prose blockquote {
  margin: 2.2rem 0;
  padding: 0 0 0 1.4rem;
  border-left: 2px solid var(--accent-deep);
  font-family: var(--serif);
  font-size: 1.28rem;
  line-height: 1.4;
  color: #efefef;
}

.prose blockquote p { margin: 0; }

.prose figure { margin: 2.4rem 0; }

.prose figure img {
  border-radius: var(--radius);
  background: var(--surface);
  width: 100%;
}

.prose figcaption {
  margin-top: 0.75rem;
  color: var(--meta);
  font-size: var(--fs-meta);
  line-height: 1.5;
}

.params {
  display: grid;
  grid-template-columns: 10.5rem minmax(0, 1fr);
  margin: 2rem 0 2.4rem;
  font-size: 0.9375rem;
  border-top: 1px solid var(--line);
}

.params dt {
  color: var(--meta);
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.params dd {
  margin: 0;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.after {
  margin-top: 2.8rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line-soft);
  color: var(--text-soft);
  font-size: 0.9375rem;
}

.readmore {
  margin-top: clamp(3.2rem, 7vw, 5rem);
  padding-top: 2rem;
  border-top: 1px solid var(--line-soft);
}

.readmore h2 {
  margin: 0 0 1.6rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-soft);
}

.readmore .grid { margin-top: 0; }

/* ── словарь ─────────────────────────────────────────── */

.terms { margin: 2.4rem 0 0; }

.terms > div {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  gap: 0 2.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line-soft);
}

.terms dt {
  font-size: 1.0625rem;
  font-weight: 500;
}

.terms dd { margin: 0; color: var(--text-soft); }

.terms dd .aside {
  display: block;
  margin-top: 0.5rem;
  color: var(--meta);
  font-size: 0.9375rem;
}

/* ── чем делается ────────────────────────────────────── */

.rig { margin: 2.4rem 0 0; }

.rig h2 {
  margin: 3rem 0 0.4rem;
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-h2);
}

.rig ul { list-style: none; margin: 0; padding: 0; }

.rig li {
  padding: 1.15rem 0;
  border-top: 1px solid var(--line-soft);
}

.rig .name { margin: 0 0 0.3rem; font-weight: 500; }
.rig .note { margin: 0; color: var(--text-soft); font-size: 0.9375rem; }
.rig .grump { color: #d98b6c; }

/* ── простые страницы ────────────────────────────────── */

.plain { padding: clamp(2rem, 4vw, 3rem) 0 0; }
.plain p { margin: 1.3rem 0; }
.plain p.first { color: var(--text-soft); font-size: 1.1rem; }

.lost { padding: clamp(5rem, 12vw, 9rem) 0; text-align: center; }

.lost h1 {
  margin: 0 auto;
  max-width: 16ch;
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-title);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.lost p {
  margin: 1.3rem auto 0;
  max-width: 32rem;
  color: var(--text-soft);
}

.lost .pill { margin-top: 2rem; padding: 0.55rem 1.25rem; }

/* ── адаптив ─────────────────────────────────────────── */

@media (max-width: 60rem) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .terms > div { grid-template-columns: 11rem minmax(0, 1fr); gap: 0 1.5rem; }
}

@media (max-width: 44rem) {
  .nav {
    grid-template-columns: auto auto;
    row-gap: 0.9rem;
    justify-content: space-between;
  }
  .nav-mid { order: 3; grid-column: 1 / -1; justify-self: stretch; }
  .nav-links { justify-content: flex-start; }
  .grid { grid-template-columns: minmax(0, 1fr); gap: 2.4rem; }
  .terms > div { grid-template-columns: minmax(0, 1fr); gap: 0.4rem; }
  .params { grid-template-columns: 8rem minmax(0, 1fr); }
  .row { grid-template-columns: minmax(0, 1fr); gap: 0.9rem; }
  .pager { grid-template-columns: 1fr; justify-items: center; row-gap: 0.9rem; text-align: center; }
  .pager .end { justify-self: center; }
  .site-foot .row { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 23.5rem) {
  :root { --fs-hero: 2.7rem; --fs-title: 1.95rem; }
  .nav-links { gap: 0.3rem 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}