/*
  Стили блога. Токены — те же, что в landing/index.html (apps/web theme.css):
  один визуальный язык у лендинга, блога и приложения.
*/

:root {
  --bg: #f7f7f9;
  --card: #ffffff;
  --ink: #000000;
  --ink-secondary: #3c3c43;
  --ink-tertiary: #8e8e93;
  --border: rgba(60, 60, 67, 0.12);
  --border-strong: rgba(60, 60, 67, 0.22);
  --accent: #000000;
  --accent-fg: #ffffff;
  --dot: rgba(0, 0, 0, 0.055);
  --surface-secondary: #ededf0;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 14px rgba(0, 0, 0, 0.05);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}
:root[data-theme='light'] {
  --bg: #f7f7f9; --card: #ffffff; --ink: #000000; --ink-secondary: #3c3c43;
  --ink-tertiary: #8e8e93; --border: rgba(60, 60, 67, 0.12);
  --border-strong: rgba(60, 60, 67, 0.22); --accent: #000000; --accent-fg: #ffffff;
  --dot: rgba(0, 0, 0, 0.055); --surface-secondary: #ededf0;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 14px rgba(0, 0, 0, 0.05);
}
:root[data-theme='dark'] {
  --bg: #0a0a0b; --card: #1c1c1e; --ink: #ffffff; --ink-secondary: #ebebf5;
  --ink-tertiary: #8e8e93; --border: rgba(235, 235, 245, 0.16);
  --border-strong: rgba(235, 235, 245, 0.28); --accent: #ffffff; --accent-fg: #000000;
  --dot: rgba(255, 255, 255, 0.09); --surface-secondary: #141416;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  letter-spacing: -0.2px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.shell { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.shell-wide { max-width: 1060px; }

/* ---------- шапка (та же, что на лендинге) ---------- */
header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.wordmark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  line-height: 1.15;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.head-nav { display: flex; align-items: center; gap: 20px; margin-left: auto; margin-right: 20px; }
.head-nav a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.head-nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
@media (max-width: 640px) { .head-nav { display: none; } }
.theme-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-tertiary);
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 9999px;
  padding: 5px 12px;
  cursor: pointer;
}
.theme-chip:hover { color: var(--ink); border-color: var(--ink); }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 9999px;
  padding: 11px 18px;
  white-space: nowrap;
  transition: transform 0.12s ease;
  color: var(--accent-fg);
  background: var(--accent);
  box-shadow: var(--shadow-card);
  border: none;
  cursor: pointer;
}
.btn:hover { transform: scale(1.04); }
.btn-small { font-size: 11px; padding: 8px 16px; }
.head-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- индекс блога ---------- */
.blog-head {
  padding: 56px 0 12px;
  background-image: radial-gradient(circle, var(--dot) 1px, transparent 1px);
  background-size: 26px 26px;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: 9999px;
  padding: 5px 14px;
  margin-bottom: 18px;
  background: var(--bg);
}
h1 {
  font-size: clamp(34px, 5.6vw, 52px);
  font-weight: 800;
  letter-spacing: -1.4px;
  line-height: 1.05;
}
.blog-head p {
  margin-top: 14px;
  font-size: clamp(15px, 2vw, 17px);
  color: var(--ink-secondary);
  max-width: 52ch;
}

/* сетка плиток: обложка сверху, текст под ней */
.post-grid {
  padding: 30px 0 72px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) { .post-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .post-grid { grid-template-columns: 1fr; } }
.post-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.post-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06), 0 18px 40px rgba(0, 0, 0, 0.1);
}
.card-cover {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  aspect-ratio: 16 / 9;
  background-color: var(--surface-secondary);
  background-image: radial-gradient(circle, var(--dot) 1.4px, transparent 1.4px);
  background-size: 22px 22px;
}
.card-cover .cover-big {
  font-size: clamp(30px, 5.5vw, 48px);
  letter-spacing: -1.6px;
}
.card-cover .cover-small { font-size: 9.5px; letter-spacing: 0.14em; }
.card-body { display: block; padding: 16px 18px 20px; }
.post-date {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--ink-tertiary);
}
.post-card h2 {
  margin-top: 6px;
  font-size: clamp(18px, 2.2vw, 21px);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.22;
}
.post-card p {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--ink-secondary);
  line-height: 1.5;
}

/* ---------- статья ---------- */
.article-head { padding: 34px 0 20px; }
/* кнопка «назад» - пилюля, как у референса */
.back-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
  text-decoration: none;
  background: var(--card);
  border-radius: 9999px;
  box-shadow: var(--shadow-card);
  padding: 9px 16px;
}
.back-link:hover { color: var(--ink); }
.article-meta {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-tertiary);
}
.article-head h1 {
  margin-top: 8px;
  font-size: clamp(30px, 4.8vw, 46px);
}

/* обложка статьи: dot-grid, крупное слово, вотермарк - вместо стоковой картинки */
.cover {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  aspect-ratio: 16 / 8;
  border-radius: 18px;
  overflow: hidden;
  background-color: var(--surface-secondary);
  background-image: radial-gradient(circle, var(--dot) 1.4px, transparent 1.4px);
  background-size: 26px 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
@media (max-width: 800px) { .cover { margin: 0 24px; } }
.cover-big {
  font-size: clamp(46px, 11vw, 96px);
  font-weight: 800;
  letter-spacing: -3px;
  line-height: 1;
  color: var(--ink);
  text-align: center;
  padding: 0 24px;
}
.cover-small {
  font-family: var(--font-mono);
  font-size: clamp(10px, 1.6vw, 13px);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
  text-align: center;
  padding: 0 24px;
}
.cover-mark {
  position: absolute;
  left: 20px;
  bottom: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
}
.shell-lead { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.article-lead {
  margin-top: 26px;
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--ink-secondary);
  line-height: 1.5;
}

article { padding: 30px 0 40px; }
article h2 {
  margin: 34px 0 10px;
  font-size: clamp(21px, 2.8vw, 27px);
  font-weight: 800;
  letter-spacing: -0.6px;
  line-height: 1.2;
}
article h3 {
  margin: 24px 0 8px;
  font-size: clamp(17px, 2.2vw, 19px);
  font-weight: 700;
  letter-spacing: -0.3px;
}
article p {
  margin-top: 12px;
  font-size: 16.5px;
  color: var(--ink-secondary);
  line-height: 1.65;
}
article p b, article li b { color: var(--ink); font-weight: 700; }
article a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
article ul, article ol { margin: 12px 0 0 20px; }
article li {
  margin-top: 8px;
  font-size: 16.5px;
  color: var(--ink-secondary);
  line-height: 1.6;
}
article blockquote {
  margin: 22px 0;
  padding: 16px 18px;
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  font-size: 16px;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.2px;
}

/* врезка-CTA внутри статьи */
.inline-cta {
  margin: 30px 0;
  padding: 20px 22px;
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}
.inline-cta p {
  margin: 0 0 14px;
  font-size: 15.5px;
  color: var(--ink-secondary);
}
.inline-cta b { color: var(--ink); }

/* следующие статьи */
.next-up {
  border-top: 1px solid var(--border);
  padding: 30px 0 60px;
}
.next-up .mono-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
}
.next-grid { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) { .next-grid { grid-template-columns: 1fr; } }
.next-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  padding: 16px 18px;
}
.next-card span {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.25;
}
.next-card:hover span { text-decoration: underline; text-underline-offset: 3px; }

footer {
  border-top: 1px solid var(--border);
  padding: 16px 24px 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-tertiary);
}
footer a { color: var(--ink-secondary); text-decoration: none; border-bottom: 1px solid var(--border-strong); }