/* ============================================================
   mertas.space — книжная вёрстка
   бумага, тушь, один красный штамп.
   без теней, градиентов, скруглений и анимаций.
   ============================================================ */

@font-face {
  font-family: "Old Standard TT";
  src: url("./fonts/old-standard-tt-cyrillic-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Old Standard TT";
  src: url("./fonts/old-standard-tt-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Old Standard TT";
  src: url("./fonts/old-standard-tt-cyrillic-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Old Standard TT";
  src: url("./fonts/old-standard-tt-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Old Standard TT";
  src: url("./fonts/old-standard-tt-cyrillic-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Old Standard TT";
  src: url("./fonts/old-standard-tt-latin-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* 700 italic в Old Standard TT отсутствует: браузер синтезирует наклон */

/* ---------- tokens: дневная бумага ---------- */
:root {
  --paper: #f2ead8;
  --paper-deep: #e9dfc8;
  --wash: #ece2cd;
  --ink: #17140f;
  --ink-2: #3d3830;
  --ink-3: #6f6759;
  --rule: #b9ac90;
  --red: #96301c;
  --flag: #7d2a18;
  --card: #ece2cd;
  --grain-op: .045;
  --serif: "Old Standard TT", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --maxw: 76rem;
  --readw: 44rem;
  --shadow: rgba(23, 20, 15, .18);
  color-scheme: light;
}

/* ---------- ночь: инверсия той же бумаги ---------- */
:root[data-theme="dark"] {
  --paper: #15120e;
  --paper-deep: #1c1813;
  --wash: #211c15;
  --ink: #e7dcc4;
  --ink-2: #c4b79d;
  --ink-3: #948872;
  --rule: #494034;
  --red: #d2603f;
  --flag: #e0785a;
  --card: #211c15;
  --grain-op: .05;
  --shadow: rgba(0, 0, 0, .5);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: .18em; text-decoration-thickness: 1px; }
img, svg { max-width: 100%; }
.shell { position: relative; z-index: 1; min-height: 100dvh; display: flex; flex-direction: column; }
.shell > main { flex: 1 0 auto; }
.wrap { width: min(100% - 3rem, var(--maxw)); margin-inline: auto; }

::selection { background: var(--red); color: var(--paper); }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

/* ---------- верхняя строка ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 3px double var(--ink);
}
.topbar__in {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  min-height: 3.6rem;
}
.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -.01em;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
}
.brand:hover { text-decoration: none; }
.brand .dot {
  width: 7px; height: 7px;
  background: var(--red);
  transform: rotate(45deg);
  display: inline-block;
}
.topbar__nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1.35rem;
}
.topbar__nav a, .theme-btn {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.topbar__nav a:hover { color: var(--red); text-decoration: none; }
.theme-btn {
  background: none;
  border: 1px solid var(--rule);
  padding: .28rem .55rem;
  cursor: pointer;
  color: var(--ink-2);
}
.theme-btn:hover { border-color: var(--ink); color: var(--ink); }

.progress {
  position: absolute;
  left: 0; bottom: -3px;
  height: 2px; width: 0;
  background: var(--red);
}

/* ---------- шапка главной ---------- */
.masthead { padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2rem, 4vw, 3rem); }
.kicker {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  display: flex;
  align-items: center;
  gap: .7rem;
  margin: 0 0 1.2rem;
}
.kicker::before { content: ""; width: 2.2rem; height: 1px; background: var(--red); }
.h-hero {
  font-family: var(--serif);
  font-size: clamp(3rem, 10vw, 7rem);
  line-height: .92;
  letter-spacing: -.035em;
  font-weight: 700;
  margin: 0 0 1.3rem;
  text-wrap: balance;
}
.h-hero em { font-style: italic; color: var(--red); }
.h-hero .word { display: inline; }
.lede {
  font-family: var(--serif);
  font-size: clamp(1.12rem, 2vw, 1.34rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 43rem;
  margin: 0 0 1.8rem;
  text-wrap: pretty;
}
.meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem .8rem;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.meta-row .sep { color: var(--rule); }

/* ---------- список записей ---------- */
.list { padding: .5rem 0 4.5rem; }
.list__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: .55rem 0 .5rem;
  margin-bottom: 0;
}
.list__head h2 {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0;
  font-weight: 400;
}
.list__head .count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .08em;
  color: var(--red);
}
.post-card {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr) 1.6rem;
  gap: 1.8rem;
  padding: 1.9rem 0;
  border-bottom: 1px solid var(--rule);
  color: inherit;
}
.post-card:hover { text-decoration: none; }
.post-card:hover .post-card__title { color: var(--red); }
.post-card__date {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .06em;
  line-height: 1.8;
  color: var(--ink-3);
  padding-top: .45rem;
  text-transform: uppercase;
}
.post-card__title {
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.8vw, 1.95rem);
  line-height: 1.15;
  letter-spacing: -.015em;
  margin: 0 0 .45rem;
  font-weight: 700;
  text-wrap: balance;
}
.post-card__excerpt {
  font-family: var(--serif);
  color: var(--ink-2);
  margin: 0 0 .85rem;
  max-width: 42rem;
  font-size: 1.02rem;
  line-height: 1.55;
}
.tags { display: flex; flex-wrap: wrap; gap: .35rem .55rem; }
.tag {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule);
  padding-bottom: .1rem;
}
.post-card__arrow {
  font-family: var(--serif);
  font-size: 1.25rem;
  color: var(--ink-3);
  padding-top: .25rem;
}
.post-card:hover .post-card__arrow { color: var(--red); }

/* ---------- о блоге ---------- */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 2.6rem 0 4.5rem;
  border-top: 3px double var(--ink);
}
.about h3 {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  margin: 0 0 .8rem;
  font-weight: 400;
}
.about p {
  font-family: var(--serif);
  color: var(--ink-2);
  margin: 0 0 .7rem;
  font-size: 1.03rem;
}
.about p:last-child { margin-bottom: 0; }
.about em { color: var(--ink); }

/* ---------- статья ---------- */
.post-hero { padding: clamp(2.4rem, 6vw, 4.6rem) 0 0; }
.post-hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.3rem, 5.6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -.03em;
  font-weight: 700;
  margin: 0 0 1rem;
  max-width: 54rem;
  text-wrap: balance;
}
.post-hero .lede { max-width: 40rem; margin-bottom: 1.4rem; }
.post-hero .meta-row {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: .5rem 0;
  margin-bottom: 3.2rem;
}
.post-hero .kicker { margin-bottom: 1.1rem; }

.layout {
  display: grid;
  grid-template-columns: 13rem minmax(0, var(--readw)) 1fr;
  gap: clamp(1.6rem, 4vw, 3.6rem);
  align-items: start;
  padding-bottom: 5rem;
}

/* ---------- оглавление ---------- */
.toc {
  position: sticky;
  top: 5.2rem;
  max-height: calc(100vh - 7rem);
  overflow: auto;
  border-top: 1px solid var(--ink);
  padding-top: .7rem;
  font-size: .8rem;
}
.toc__title {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--red);
  margin: 0 0 .65rem;
}
.toc a {
  display: block;
  color: var(--ink-3);
  padding: .26rem 0 .26rem .1rem;
  line-height: 1.3;
}
.toc a::before {
  content: counter(toc, decimal-leading-zero) "  ";
  font-family: var(--mono);
  font-size: .62em;
  color: var(--rule);
  letter-spacing: .06em;
}
.toc { counter-reset: toc; }
.toc a { counter-increment: toc; }
.toc a:hover { color: var(--ink); text-decoration: none; }
.toc a.active { color: var(--ink); font-style: italic; }
.toc a.active::before { color: var(--red); }

/* ---------- набор ---------- */
.prose {
  font-family: var(--serif);
  font-size: 1.145rem;
  line-height: 1.74;
  min-width: 0;
}
.prose > p { margin: 0 0 1.05em; text-wrap: pretty; }
.prose > p:first-of-type::first-letter {
  float: left;
  font-size: 4.5em;
  line-height: .78;
  padding: .06em .1em 0 0;
  font-weight: 700;
  color: var(--red);
}
.prose h2 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.05rem);
  line-height: 1.14;
  letter-spacing: -.018em;
  font-weight: 700;
  margin: 2.6em 0 .85em;
  padding-top: .55em;
  border-top: 1px solid var(--rule);
  text-wrap: balance;
  scroll-margin-top: 5.5rem;
}
.prose h2 .num {
  display: block;
  font-family: var(--mono);
  font-size: .58em;
  font-weight: 400;
  letter-spacing: .14em;
  color: var(--red);
  margin-bottom: .45em;
}
.prose h3 {
  font-family: var(--serif);
  font-size: 1.22rem;
  line-height: 1.3;
  margin: 2em 0 .45em;
  font-weight: 700;
}
.prose h2 + p, .prose h3 + p, .prose blockquote + p, .prose figure + p,
.prose .callout + p, .prose .ticket + p, .prose .table-wrap + p, .prose .code-block + p {
  text-indent: 0;
}
.prose strong { color: var(--ink); font-weight: 700; }
.prose em { font-style: italic; }
.prose a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .16em;
  text-decoration-color: var(--rule);
}
.prose a:hover { color: var(--red); text-decoration-color: var(--red); }
.prose ul, .prose ol { margin: 0 0 1.35em; padding-left: 1.35em; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--red); }
.prose hr { border: 0; height: 1px; background: var(--rule); margin: 2.6em 0; }
.prose > p + p { text-indent: 1.4em; }

.prose blockquote {
  margin: 2.3em 0;
  padding: .1em 0 .1em 2.2em;
  position: relative;
  font-size: 1.16em;
  line-height: 1.5;
  color: var(--ink);
}
.prose blockquote::before {
  content: "“";
  position: absolute;
  left: 0; top: -.18em;
  font-family: var(--serif);
  font-size: 2.6em;
  line-height: 1;
  color: var(--red);
}
.prose blockquote p { margin: 0 0 .45em; text-indent: 0; }
.prose blockquote cite {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: .58em;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: .5em;
}

/* ---------- код ---------- */
.code-block {
  position: relative;
  margin: 2em 0;
  border: 1px solid var(--ink);
  background: var(--paper-deep);
  box-shadow: 4px 4px 0 var(--shadow);
}
.code-block__bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .42rem .7rem;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.code-block__bar .dots { display: flex; gap: .28rem; margin-right: .25rem; }
.code-block__bar .dots i {
  width: 7px; height: 7px;
  border: 1px solid var(--ink-3);
  border-radius: 50%;
  display: block;
  background: transparent;
}
.copy-btn {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: none;
  color: var(--ink-3);
  border: 1px solid var(--rule);
  padding: .14rem .42rem;
  cursor: pointer;
}
.copy-btn:hover { color: var(--red); border-color: var(--red); }
pre {
  margin: 0;
  padding: .9rem 1rem 1.05rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: .8rem;
  line-height: 1.66;
  color: var(--ink);
  tab-size: 2;
}
pre .c { color: var(--ink-3); font-style: italic; }
pre .k { color: var(--red); }
pre .s { color: #46603c; }
pre .p { color: #304c63; }
pre .n { color: var(--flag); }
:root[data-theme="dark"] pre .s { color: #8fae7d; }
:root[data-theme="dark"] pre .p { color: #8aa8c2; }

/* ---------- терминал-факсимиле ---------- */
.terminal {
  margin: 2.3em 0;
  border: 1px solid var(--ink);
  background: var(--paper-deep);
  box-shadow: 6px 6px 0 var(--shadow);
  font-family: var(--mono);
  font-size: .8rem;
  line-height: 1.72;
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .42rem .7rem;
  background: var(--ink);
  color: var(--paper);
  font-size: .6rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.terminal__bar .dots { display: flex; gap: .28rem; }
.terminal__bar .dots i {
  width: 7px; height: 7px;
  border: 1px solid var(--paper);
  border-radius: 50%;
  display: block;
}
.terminal__body { padding: .85rem 1rem 1rem; min-height: 7rem; }
.terminal__body div { white-space: pre-wrap; word-break: break-word; }
.terminal .prompt { color: var(--red); }
.terminal .ok { color: #46603c; }
.terminal .dim { color: var(--ink-3); }
:root[data-theme="dark"] .terminal .ok { color: #8fae7d; }
.terminal .cursor {
  display: inline-block;
  width: .5em; height: 1em;
  background: var(--ink);
  vertical-align: -.15em;
}

/* ---------- врезки ---------- */
.callout {
  margin: 2.2em 0;
  padding: 1.05rem 1.2rem 1.1rem;
  border: 1px solid var(--ink);
  border-left: 4px solid var(--red);
  background: var(--wash);
  font-size: .96em;
  line-height: 1.62;
}
.callout__label {
  display: block;
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: .4rem;
}
.callout p { margin: 0 0 .5em; text-indent: 0; }
.callout p:last-child { margin: 0; }

.ticket {
  margin: 2.2em 0;
  border: 1px dashed var(--ink-3);
  padding: 1rem 1.1rem;
  background: var(--paper-deep);
  font-family: var(--mono);
  font-size: .76rem;
  line-height: 1.7;
  color: var(--ink-2);
}
.ticket dt {
  font-size: .6rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
  margin-top: .55rem;
}
.ticket dt:first-child { margin-top: 0; }
.ticket dd { margin: 0 0 .35rem; color: var(--ink); }
.ticket s { color: var(--ink-3); }

.memo {
  margin: 2.4em 0;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--ink);
  background: var(--wash);
}
.memo__title {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
  margin: 0 0 .55rem;
}
.memo p { text-indent: 0; }

/* ---------- экспонаты ---------- */
.exhibits {
  margin: 2.4em 0;
  border-top: 2px solid var(--ink);
}
.exhibit {
  padding: 1.35rem 0 1.4rem;
  border-bottom: 1px solid var(--rule);
}
.exhibit__no {
  display: block;
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: .35rem;
}
.exhibit h3 {
  margin: .1em 0 .45em;
  font-size: 1.18rem;
  line-height: 1.3;
}
.exhibit p { margin: 0 0 .5em; text-indent: 0; }
.verdict {
  display: block;
  margin-top: .55rem;
  font-size: .95em;
  font-style: italic;
  color: var(--ink-2);
}
.verdict::before { content: "→ "; color: var(--red); font-style: normal; }

/* ---------- таблицы ---------- */
.table-wrap { overflow-x: auto; margin: 2em 0; }
table {
  border-collapse: collapse;
  width: 100%;
  font-family: var(--serif);
  font-size: .96rem;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
th, td {
  text-align: left;
  padding: .58rem .7rem .58rem 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
th {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 400;
  border-bottom: 1px solid var(--ink);
}
tbody tr:last-child td { border-bottom: 0; }
td b { color: var(--ink); }
caption {
  caption-side: top;
  text-align: left;
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: .5rem;
}

/* ---------- рисунок ---------- */
.figure { margin: 2.6em 0; padding: 0; }
.figure svg { width: 100%; height: auto; display: block; }
.figure .room { overflow: visible; }
.figure .room text { font-family: var(--mono); }
.figure .node rect {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 1.3;
}
.figure .node--agent rect {
  fill: var(--wash);
  stroke: var(--red);
  stroke-width: 1.8;
}
.figure .t1 { fill: var(--ink); font-size: 16px; font-weight: 700; letter-spacing: -.01em; }
.figure .t1--big { font-size: 24px; }
.figure .t2 { fill: var(--ink-2); font-size: 12px; }
.figure .t3 { fill: var(--ink-3); font-size: 11px; letter-spacing: .04em; }
.figure .t3.accent { fill: var(--red); }
.figure .lbl {
  fill: var(--red);
  font-size: 9px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.figure .edge {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.3;
  stroke-dasharray: none;
}
.figure .edge--out { stroke: var(--red); stroke-width: 1.8; }
.figure .node, .figure .edges { opacity: 1; transform: none; }
.figure figcaption {
  font-family: var(--mono);
  font-size: .66rem;
  line-height: 1.5;
  color: var(--ink-3);
  margin-top: .8rem;
  padding-top: .45rem;
  border-top: 1px solid var(--rule);
  letter-spacing: .02em;
}

/* ---------- низ ---------- */
.footer {
  border-top: 3px double var(--ink);
  padding: 1.7rem 0 2.6rem;
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .04em;
  color: var(--ink-3);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
  align-items: baseline;
}
.footer a { color: var(--ink-2); text-decoration: underline; text-underline-offset: .15em; }
.footer .right { margin-left: auto; }

/* ---------- зерно бумаги ---------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  opacity: var(--grain-op);
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="dark"] .grain { mix-blend-mode: screen; opacity: .03; }

/* ---------- адаптив ---------- */
@media (max-width: 1040px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; }
  .prose { max-width: var(--readw); }
}
@media (max-width: 860px) {
  .about { grid-template-columns: 1fr; gap: 1.8rem; }
  .post-card { grid-template-columns: minmax(0, 1fr) 1.4rem; gap: .3rem 1rem; }
  .post-card__date { grid-column: 1 / -1; padding-top: 0; }
}
@media (max-width: 620px) {
  body { font-size: 17px; }
  .wrap { width: min(100% - 1.7rem, var(--maxw)); }
  .topbar__in { gap: .8rem; min-height: 3.2rem; }
  .brand { font-size: 1rem; }
  .topbar__nav { gap: .8rem; }
  .topbar__nav a { font-size: .6rem; letter-spacing: .08em; }
  .topbar__nav a:first-child { display: none; }
  .theme-btn { font-size: .6rem; padding: .25rem .4rem; }
  .masthead { padding-top: 2.4rem; }
  .h-hero { font-size: clamp(2.7rem, 13vw, 4.2rem); }
  .post-hero { padding-top: 2rem; }
  .post-hero h1 { font-size: clamp(1.95rem, 8.5vw, 2.7rem); }
  .post-hero .meta-row { margin-bottom: 2.2rem; }
  .prose { font-size: 1.07rem; line-height: 1.7; }
  .prose h2 { margin-top: 2.1em; }
  .prose > p:first-of-type::first-letter { font-size: 3.7em; }
  .code-block, .terminal { box-shadow: 3px 3px 0 var(--shadow); }
  .footer .right { margin-left: 0; }
}

/* ---------- печать ---------- */
@media print {
  .topbar, .toc, .grain, .progress, .copy-btn, .theme-btn, .footer { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .wrap { width: 100%; }
  .layout { display: block; }
  .prose { max-width: none; font-size: 11pt; }
  .prose h2 { break-after: avoid; }
  .code-block, .terminal, .callout, .memo, .ticket { break-inside: avoid; box-shadow: none; }
  a { text-decoration: underline; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}