/* ===== Токены ===== */
:root {
  --ink: #101a33;
  --ink-soft: #2b3555;
  --bg: #f6f5f0;
  --surface: #ffffff;
  --surface-border: #e4e1d6;
  --muted: #6b7085;
  --accent: #2f5de3;
  --accent-ink: #ffffff;
  --warm: #ff6b4a;
  --radius: 10px;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'IBM Plex Sans', -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
  --max-width: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef0f7;
    --ink-soft: #c7cbe0;
    --bg: #10131f;
    --surface: #171b2b;
    --surface-border: #2a2f45;
    --muted: #9198b5;
    --accent: #7d9bff;
    --accent-ink: #0b0e18;
    --warm: #ff8b6e;
  }
}

:root[data-theme='dark'] {
  --ink: #eef0f7;
  --ink-soft: #c7cbe0;
  --bg: #10131f;
  --surface: #171b2b;
  --surface-border: #2a2f45;
  --muted: #9198b5;
  --accent: #7d9bff;
  --accent-ink: #0b0e18;
  --warm: #ff8b6e;
}

:root[data-theme='light'] {
  --ink: #101a33;
  --ink-soft: #2b3555;
  --bg: #f6f5f0;
  --surface: #ffffff;
  --surface-border: #e4e1d6;
  --muted: #6b7085;
  --accent: #2f5de3;
  --accent-ink: #ffffff;
  --warm: #ff6b4a;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink);
  text-wrap: balance;
  margin: 0 0 .5em;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}

/* ===== Шапка ===== */
.site-header {
  border-bottom: 1px solid var(--surface-border);
  background: var(--surface);
}
.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 24px;
}
.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 20px;
}
.wordmark:hover { text-decoration: none; }
.wordmark__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--serif);
  font-size: 18px;
}
.wordmark__text em { font-style: normal; color: var(--accent); }

.site-nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.site-nav__link {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
  padding: 8px 12px;
  border-radius: 8px;
}
.site-nav__link:hover { background: var(--bg); text-decoration: none; }
.site-nav__link.is-active {
  background: var(--ink);
  color: var(--bg);
}
.site-nav__tg {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-ink);
  background: var(--accent);
  padding: 8px 14px;
  border-radius: 8px;
  margin-left: 4px;
}
.site-nav__tg:hover { text-decoration: none; opacity: .88; }

/* ===== Hero ===== */
.hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--surface-border);
}
.hero__inner { max-width: 720px; }
.hero__title {
  font-size: clamp(28px, 4.5vw, 44px);
  line-height: 1.15;
}
.hero__lede {
  color: var(--muted);
  font-size: 17px;
  max-width: 58ch;
}

.page-header { padding: 40px 0 8px; }
.page-header__title { font-size: clamp(24px, 4vw, 34px); }
.page-header__lede { color: var(--muted); }

/* ===== Карточки ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  padding: 32px 0 64px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16, 26, 51, 0.08);
}
.card__label {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.card__category { color: var(--accent); font-weight: 500; }
.card__title { font-size: 19px; margin: 0; }
.card__title a { color: var(--ink); }
.card__title a:hover { color: var(--accent); }
.card__excerpt {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0;
  flex-grow: 1;
}
.card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  padding: 3px 9px;
}
.card__actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  font-size: 13.5px;
}
.card__more { font-weight: 600; }
.card__external { color: var(--warm); }

.empty-state {
  padding: 60px 0;
  color: var(--muted);
  text-align: center;
}

/* ===== Материал ===== */
.material { padding: 32px 0 72px; max-width: 720px; }
.breadcrumbs {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 18px;
}
.material__title { font-size: clamp(26px, 4vw, 36px); }
.material__body {
  font-size: 17px;
  color: var(--ink-soft);
  white-space: pre-wrap;
  margin-bottom: 20px;
}
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  margin-top: 20px;
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn--primary:hover { text-decoration: none; opacity: .9; }

.not-found { padding: 100px 0; text-align: center; }

/* ===== Подвал ===== */
.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13.5px;
}
.site-footer__row { display: flex; flex-direction: column; gap: 4px; }
.site-footer__muted { opacity: .75; }

@media (max-width: 640px) {
  .site-header__row { flex-direction: column; align-items: flex-start; }
  .card-grid { grid-template-columns: 1fr; }
}