/* Блог ritm.guru/blog — поверх /landing/styles.css (токены, шапка, сцена, .pa, подвал). Тот же язык: сцена-горизонт,
   стекло на статичных поверхностях, серифный дисплей, один акцент. Моушен — transform/opacity, гасится reduced-motion. */

.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase;
  color: color-mix(in oklab, var(--accent) 55%, var(--ink)); }
[data-theme='light'] .eyebrow { color: color-mix(in oklab, var(--accent) 80%, var(--ink)); }
.eyebrow a { color: inherit; text-decoration: none; } .eyebrow a:hover { text-decoration: underline; }

/* ---- герой списка: короткая сцена ---- */
.bhero { position: relative; overflow: hidden; isolation: isolate; color: var(--scene-ink);
  padding-block: calc(var(--nav-h) + clamp(48px, 7vw, 112px)) clamp(120px, 14vw, 200px); }
.bhero .hill { height: 16vh; bottom: -9vh; } .bhero .hill--far { height: 14vh; bottom: -10vh; }
.bhero__in { position: relative; z-index: 3; }
.bhero .eyebrow { color: color-mix(in oklab, var(--accent) 45%, var(--scene-ink)); }
.bhero h1 { margin-top: var(--s-4); max-width: 16ch; font-size: clamp(2.6rem, 1.4rem + 4.4vw, 5.25rem); }
.bhero__lead { margin-top: var(--s-5); max-width: 40ch; font-size: var(--t-lead); line-height: 1.42; color: var(--ink-glass); }
.bhero__btn { margin-top: var(--s-6); }
.bhero--404 { min-height: 70svh; }

/* ---- секция списка ---- */
.bsec { padding-block: clamp(48px, 5vw, 88px) var(--sec); }
.bsec__title { font-size: clamp(2rem, 1.4rem + 2vw, 3rem); margin-bottom: var(--s-7); }
.bsec--related { padding-top: var(--s-8); border-top: 1px solid var(--line); }

.chips { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-bottom: var(--s-7); }
.chip { display: inline-grid; place-items: center; min-height: 44px; padding: 0 18px; border-radius: 999px; font-size: 15px; font-weight: 500;
  text-decoration: none; color: var(--ink-2); border: 1px solid var(--line-2);
  transition: color var(--d-fast), background-color var(--d-fast), border-color var(--d-fast); }
.chip:hover { color: var(--ink); border-color: color-mix(in oklab, var(--ink) 40%, transparent); }
.chip.is-on { color: var(--ink); background: color-mix(in oklab, var(--ink) 8%, transparent); border-color: color-mix(in oklab, var(--ink) 30%, transparent); }
.chip:focus-visible, .bcard__link:focus-visible, .toc a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---- карточки статей ---- */
.bgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }
.bcard { min-width: 0; }
.bcard__link { display: flex; flex-direction: column; height: 100%; text-decoration: none; color: inherit; border-radius: var(--r-lg); overflow: hidden;
  background: var(--surface); border: 1px solid var(--line); box-shadow: inset 0 1px 0 color-mix(in oklab, white 6%, transparent);
  transition: transform var(--d-base) var(--ease-out), box-shadow var(--d-base) var(--ease-out), border-color var(--d-base); }
.bcard__media { display: block; aspect-ratio: 1200 / 630; overflow: hidden; background: var(--bg-2); border-bottom: 1px solid var(--line); }
[data-theme='light'] .bcard__media .for-dark, [data-theme='dark'] .bcard__media .for-light { display: none; }
.bcard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease-out); }
.bcard__body { display: flex; flex-direction: column; gap: var(--s-3); padding: var(--s-5) var(--s-5) var(--s-6); flex: 1; }
.bcard__title { font: 500 clamp(1.25rem, 1.1rem + .45vw, 1.5rem)/1.18 var(--font-serif); letter-spacing: -0.018em; text-wrap: balance; }
.bcard__desc { color: var(--ink-2); line-height: 1.5; max-width: 52ch; }
.bcard__meta { margin-top: auto; padding-top: var(--s-2); display: flex; gap: 8px; font-size: var(--t-s); color: var(--ink-2); font-variant-numeric: tabular-nums; }
@media (hover: hover) {
  .bcard__link:hover { transform: translateY(-4px); border-color: var(--line-2); box-shadow: 0 2px 4px oklch(0 0 0 / .08), 0 18px 40px oklch(0 0 0 / .14); }
  .bcard__link:hover .bcard__media img { transform: scale(1.03); }
}
.bcard__link:active { transform: translateY(-1px) scale(.995); }

/* первая статья — широкая: картинка слева, текст справа */
.bcard--lead { grid-column: 1 / -1; }
.bcard--lead .bcard__link { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
.bcard--lead .bcard__media { aspect-ratio: auto; min-height: 100%; border-bottom: 0; border-right: 1px solid var(--line); }
.bcard--lead .bcard__body { padding: clamp(24px, 3vw, 48px); justify-content: center; gap: var(--s-4); }
.bcard--lead .bcard__title { font-size: clamp(1.75rem, 1.2rem + 1.6vw, 2.75rem); line-height: 1.08; letter-spacing: -0.025em; }
.bcard--lead .bcard__meta { margin-top: var(--s-3); }

/* ---- пустое состояние ---- */
.bempty { display: grid; justify-items: center; text-align: center; gap: var(--s-4); padding: clamp(40px, 6vw, 88px) var(--s-5);
  border-radius: var(--r-lg); border: 1px dashed var(--line-2); background: color-mix(in oklab, var(--surface) 55%, transparent); }
.bempty__wheel { width: 140px; height: 140px; margin-bottom: var(--s-3); }
.bempty__wheel path { transform-origin: 50px 50px; animation: petal-grow .9s var(--ease-out) calc(.2s + var(--i) * .07s) both; }
.bempty h2 { font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem); }
.bempty p { max-width: 46ch; color: var(--ink-2); line-height: 1.55; }
.bempty .btn { margin-top: var(--s-3); }

/* ---- статья: герой ---- */
.phero { position: relative; overflow: hidden; isolation: isolate; color: var(--scene-ink);
  padding-block: calc(var(--nav-h) + clamp(40px, 5vw, 88px)) clamp(96px, 10vw, 150px); }
.phero .hill { height: 11vh; bottom: -7vh; } .phero .hill--far { height: 10vh; bottom: -8vh; }
.phero__in { position: relative; z-index: 3; max-width: calc(860px + 2 * var(--gutter)); }
.crumbs { display: flex; flex-wrap: wrap; gap: 10px; font-size: var(--t-s); color: var(--ink-glass); }
.crumbs a { color: inherit; text-decoration: none; min-height: 24px; } .crumbs a:hover { color: var(--scene-ink); text-decoration: underline; }
.phero h1 { margin-top: var(--s-5); font-size: clamp(2.3rem, 1.3rem + 3.4vw, 4.25rem); line-height: 1.04; }
.phero__lead { margin-top: var(--s-5); max-width: 46ch; font-size: var(--t-lead); line-height: 1.42; color: var(--ink-glass); }
.phero__meta { margin-top: var(--s-5); display: flex; flex-wrap: wrap; gap: 8px; font-size: var(--t-s); color: var(--ink-glass); font-variant-numeric: tabular-nums; }

/* ---- статья: колонка чтения + оглавление ---- */
.post__grid { display: grid; grid-template-columns: minmax(0, 680px); justify-content: center; gap: var(--s-8); padding-block: clamp(40px, 5vw, 72px) var(--s-9); }
.post__grid:has(.toc) { grid-template-columns: 220px minmax(0, 680px); justify-content: center; }
.toc { position: sticky; top: calc(var(--nav-h) + 24px); align-self: start; display: grid; gap: var(--s-3); }
.toc ol { display: grid; gap: 2px; border-left: 1px solid var(--line-2); }
.toc a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 1px solid transparent; font-size: 14px; line-height: 1.35;
  color: var(--ink-2); text-decoration: none; transition: color var(--d-fast), border-color var(--d-fast); }
.toc a:hover { color: var(--ink); border-left-color: var(--ink-3); }

.prose { font-size: 1.125rem; line-height: 1.7; letter-spacing: -0.006em; color: var(--ink); min-width: 0; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 2em; font-size: clamp(1.6rem, 1.3rem + 1vw, 2.1rem); line-height: 1.15; letter-spacing: -0.02em; scroll-margin-top: calc(var(--nav-h) + 16px); }
.prose h3 { margin-top: 1.6em; font-size: 1.35rem; line-height: 1.25; scroll-margin-top: calc(var(--nav-h) + 16px); }
.prose h4 { margin-top: 1.4em; font-size: 1.1rem; font-weight: 600; font-family: var(--font-sans); }
.prose h2 + *, .prose h3 + * { margin-top: .6em; }
.prose p, .prose li { color: color-mix(in oklab, var(--ink) 88%, var(--ink-2)); }
.prose a { color: var(--ink); text-decoration: underline; text-decoration-color: color-mix(in oklab, var(--accent) 70%, transparent); text-underline-offset: .18em; text-decoration-thickness: 1.5px; }
.prose a:hover { text-decoration-color: var(--accent); }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: .45em; }
.prose ul { list-style: none; }
.prose ul > li { position: relative; }
.prose ul > li::before { content: ''; position: absolute; left: -1em; top: .72em; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
.prose ol { list-style: decimal; } .prose ol > li::marker { color: var(--ink-2); font-variant-numeric: tabular-nums; }
.prose blockquote { margin-inline: 0; padding: var(--s-2) 0 var(--s-2) var(--s-5); border-left: 2px solid var(--accent);
  font: 400 1.35rem/1.45 var(--font-serif); letter-spacing: -0.012em; color: var(--ink); }
.prose blockquote p { color: inherit; }
.prose strong { color: var(--ink); }
.prose code { font-family: var(--font-code, ui-monospace, monospace); font-size: .9em; padding: .1em .35em; border-radius: 6px; background: color-mix(in oklab, var(--ink) 8%, transparent); }
.prose pre { overflow-x: auto; padding: var(--s-4) var(--s-5); border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--line); font-size: .9rem; line-height: 1.55; }
.prose pre code { padding: 0; background: none; }
.prose hr { border: 0; height: 1px; background: var(--line-2); margin-block: 2.2em; }
.prose figure img, .post__cover img { width: 100%; height: auto; border-radius: var(--r-lg); border: 1px solid var(--line); }
.prose figcaption { margin-top: var(--s-2); font-size: var(--t-s); color: var(--ink-2); text-align: center; }
.post__cover { margin-bottom: var(--s-7); }
.post__table { overflow-x: auto; border-radius: var(--r-md); border: 1px solid var(--line); }
.prose table { width: 100%; border-collapse: collapse; font-size: .95rem; line-height: 1.45; font-variant-numeric: tabular-nums; }
.prose th, .prose td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.prose th { font-weight: 600; background: color-mix(in oklab, var(--ink) 5%, transparent); }
.prose tr:last-child td { border-bottom: 0; }

.blog-finale { margin-top: 0; }

/* ---- адаптив ---- */
@media (max-width: 1023px) {
  .bgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .post__grid:has(.toc) { grid-template-columns: minmax(0, 680px); }
  .toc { position: static; padding: var(--s-5); border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--line); }
}
@media (max-width: 859px) {
  .bcard--lead .bcard__link { grid-template-columns: 1fr; }
  .bcard--lead .bcard__media { aspect-ratio: 1200 / 630; border-right: 0; border-bottom: 1px solid var(--line); }
  .bhero .hill, .phero .hill { height: 10vh; }
}
@media (max-width: 639px) {
  .bgrid { grid-template-columns: 1fr; }
  .prose { font-size: 1.0625rem; }
  .chips { flex-wrap: nowrap; overflow-x: auto; margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); scrollbar-width: none; }
  .chip { flex: none; }
}
@media (prefers-reduced-motion: reduce) {
  .bcard__link:hover, .bcard__link:hover .bcard__media img { transform: none; }
}