/* === Систематик · Блог === */

/* ── Список статей ────────────────────────────────────────── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--ruleInk);
  border: 1px solid var(--ruleInk);
  margin-top: 24px;
}

.post-card {
  background: var(--paper);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 320px;
  position: relative;
  transition: background .2s;
  text-decoration: none;
  color: inherit;
}
.post-card:hover { background: var(--bone); }
.post-card:hover .post-arrow { transform: translate(3px, -3px) rotate(-45deg); color: var(--acid); }

.post-cat {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--acid);
  background: var(--ink);
  display: inline-block;
  padding: 4px 10px;
  align-self: flex-start;
}

.post-card h2 {
  margin: 0;
  font-family: Geist, sans-serif;
  font-weight: 600;
  font-size: clamp(18px, 1.8vw, 24px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.post-excerpt {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: rgba(10,10,11,0.65);
  flex: 1;
}

.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--ruleInk);
}
.post-date {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(10,10,11,0.45);
}
.post-arrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  color: rgba(10,10,11,0.4);
  transition: transform .25s, color .2s;
}

@media (max-width: 900px) { .posts-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .posts-grid { grid-template-columns: 1fr; } .post-card { padding: 28px; min-height: auto; } }

/* ── Пустое состояние ─────────────────────────────────────── */
.posts-empty {
  grid-column: 1 / -1;
  padding: 80px 40px;
  text-align: center;
  color: rgba(10,10,11,0.45);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.1em;
}

/* ── Шапка статьи ─────────────────────────────────────────── */
.article-hero {
  background: var(--ink);
  color: var(--paper);
  padding: 80px 0 64px;
  position: relative;
  overflow: hidden;
}
.article-hero::after {
  content: "";
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  background: var(--acid);
  transform: rotate(45deg);
  opacity: .9;
}
.article-hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  position: relative;
}
.article-crumbs {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 24px;
}
.article-crumbs a:hover { color: var(--paper); }

.article-hero h1 {
  font-family: Geist, sans-serif;
  font-weight: 600;
  font-size: clamp(32px, 5vw, 72px);
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 0 0 32px;
  max-width: 18ch;
}

.article-byline {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  border-top: 1px solid var(--rule);
  padding-top: 20px;
}
.article-byline .cat {
  color: var(--acid);
}

/* ── Тело статьи ──────────────────────────────────────────── */
.article-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px var(--pad) 96px;
}

.article-body { font-size: 18px; line-height: 1.75; color: rgba(10,10,11,0.88); }

.article-body h2 {
  font-family: Geist, sans-serif;
  font-weight: 600;
  font-size: clamp(22px, 2.4vw, 32px);
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 2.5em 0 0.6em;
  color: var(--ink);
}
.article-body h3 {
  font-family: Geist, sans-serif;
  font-weight: 600;
  font-size: clamp(18px, 1.8vw, 22px);
  letter-spacing: -0.02em;
  margin: 2em 0 0.5em;
  color: var(--ink);
}

.article-body p { margin: 0 0 1.4em; }
.article-body p:last-child { margin-bottom: 0; }

.article-body a { color: var(--ink); border-bottom: 1px solid rgba(10,10,11,0.3); transition: border-color .15s; }
.article-body a:hover { border-color: var(--ink); }

.article-body ul,
.article-body ol {
  padding-left: 0;
  margin: 0 0 1.4em;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-body ul li {
  padding-left: 24px;
  position: relative;
}
.article-body ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--acid);
  background: var(--ink);
  font-size: 12px;
  padding: 0 3px;
  top: 3px;
  line-height: 1.4;
}
.article-body ol { counter-reset: ol; }
.article-body ol li {
  padding-left: 32px;
  position: relative;
  counter-increment: ol;
}
.article-body ol li::before {
  content: counter(ol, decimal-leading-zero);
  position: absolute;
  left: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(10,10,11,0.4);
  top: 4px;
}

.article-body blockquote {
  margin: 2em 0;
  padding: 28px 32px;
  background: var(--bone);
  border-left: 3px solid var(--acid);
  font-family: Geist, sans-serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.015em;
  line-height: 1.4;
  color: var(--ink);
}
.article-body blockquote p { margin: 0; }

.article-body code {
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  background: var(--bone);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--ink);
}
.article-body pre {
  background: var(--graphite);
  padding: 24px 28px;
  overflow-x: auto;
  margin: 1.6em 0;
}
.article-body pre code {
  background: none;
  padding: 0;
  color: var(--paper);
  font-size: 14px;
  line-height: 1.6;
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--ruleInk);
  margin: 2.5em 0;
}

.article-body .result-block {
  background: var(--ink);
  color: var(--paper);
  padding: 24px 28px;
  margin: 1.6em 0;
  display: flex;
  align-items: center;
  gap: 16px;
}
.article-body .result-block strong {
  font-family: Geist, sans-serif;
  font-weight: 600;
  font-size: 28px;
  letter-spacing: -0.03em;
  color: var(--acid);
  white-space: nowrap;
}

/* ── CTA «Решаем эту задачу» ─────────────────────────────── */
.article-cta {
  margin: 56px 0 0;
  padding: 36px 40px;
  background: var(--ink);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.article-cta-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--acid);
}
.article-cta p {
  margin: 0;
  font-family: Geist, sans-serif;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--paper);
}
.article-cta a {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--acid);
  text-decoration: none;
  border-bottom: 1px solid rgba(200,255,63,0.35);
  padding-bottom: 2px;
  transition: border-color .15s;
  align-self: flex-start;
}
.article-cta a:hover { border-color: var(--acid); }

@media (max-width: 760px) { .article-cta { padding: 28px; } }

/* ── Навигация внутри статьи ──────────────────────────────── */
.article-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 32px 0;
  border-top: 1px solid var(--ruleInk);
  margin-top: 64px;
  flex-wrap: wrap;
}
.article-nav a {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(10,10,11,0.55);
  transition: color .15s;
}
.article-nav a:hover { color: var(--ink); }

@media (max-width: 760px) {
  .article-wrap { padding: 48px var(--pad) 64px; }
  .article-body { font-size: 16px; }
  .article-body blockquote { font-size: 17px; padding: 20px 22px; }
}