/* ============================================================
   АЭРОКАРКАС — блог (светлая тема, поверх styles.css)
   ============================================================ */

.reading-progress { position: fixed; top: 0; left: 0; height: 2px; width: 0; background: var(--green); z-index: 80; }

.blog-nav__inner { width: min(100% - 40px, var(--wrap)); margin-inline: auto; display: flex; align-items: center; gap: 20px; height: 76px; }
.blog-nav__back { margin-left: auto; font-family: var(--font-mono); font-size: 13px; color: var(--muted); white-space: nowrap; }
.blog-nav__back + .blog-nav__back { margin-left: 0; }
.blog-nav__back:hover { color: var(--green-strong); }

/* ---------- article ---------- */
.post { padding: 0 0 8px; }
.post__wrap { width: min(100% - 40px, 760px); margin-inline: auto; }
.crumbs { display: flex; gap: 8px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 11.5px; color: var(--dim); margin-bottom: 22px; }
.crumbs a { color: var(--muted); } .crumbs a:hover { color: var(--green-strong); }
.post h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(30px, 4.2vw, 48px); line-height: 1.06; letter-spacing: -.015em; margin-bottom: 20px; }
.post__meta { display: flex; flex-wrap: wrap; gap: 8px 18px; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .03em; text-transform: uppercase; color: var(--dim); padding-bottom: 24px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.post__meta b { color: var(--green-strong); font-weight: 500; }
.lede { font-size: clamp(18px, 2vw, 21px); line-height: 1.5; color: var(--ink); margin-bottom: 26px; }
.post p { color: var(--muted); margin: 0 0 1.1em; }
.post h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(23px, 2.6vw, 30px); line-height: 1.15; margin: 44px 0 14px; }
.post h3 { font-family: var(--font-display); font-weight: 600; font-size: 20px; margin: 30px 0 10px; }
.post ul, .post ol { margin: 0 0 1.2em; padding-left: 0; }
.post ul li, .post ol li { color: var(--muted); position: relative; padding-left: 24px; margin-bottom: 9px; }
.post ul li::before { content: "→"; position: absolute; left: 0; color: var(--green-strong); }
.post ol { counter-reset: n; }
.post ol li { counter-increment: n; padding-left: 30px; }
.post ol li::before { content: counter(n); position: absolute; left: 0; font-family: var(--font-mono); font-size: 12px; color: var(--green-strong); top: 3px; }
.post a.inline { color: var(--green-strong); border-bottom: 1px solid var(--green-tint); }
.post a.inline:hover { border-color: var(--green-strong); }
a.ext::after { content: "↗"; font-size: .78em; margin-left: 3px; vertical-align: super; }
.post strong { color: var(--ink); font-weight: 600; }
.post .post-note { color: var(--dim); }

.callout { border: 1px solid var(--line); background: var(--green-tint); border-radius: var(--r); padding: 18px 22px; margin: 26px 0; }
.callout p { margin: 0; color: var(--ink); font-size: 15.5px; }
.callout .kicker { margin-bottom: 8px; }

.table-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid var(--line); border-radius: var(--r); }
.post table { border-collapse: collapse; width: 100%; min-width: 520px; background: #fff; }
.post th, .post td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.post th { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); background: var(--paper-2); }
.post td { color: var(--muted); }
.post td strong { color: var(--ink); }

.faq-post { margin-top: 40px; }
.faq-post details { border-bottom: 1px solid var(--line); }
.faq-post details:first-child { border-top: 1px solid var(--line); }
.faq-post summary { list-style: none; cursor: pointer; padding: 18px 40px 18px 0; font-family: var(--font-display); font-weight: 600; font-size: 17px; position: relative; color: var(--ink); }
.faq-post summary::-webkit-details-marker { display: none; }
.faq-post summary::after { content: "+"; position: absolute; right: 0; font-family: var(--font-mono); color: var(--green-strong); }
.faq-post details[open] summary::after { content: "–"; }
.faq-post p { padding-bottom: 18px; margin: 0; }

.author { display: flex; gap: 16px; align-items: flex-start; margin-top: 40px; padding: 22px; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper-2); }
.author__ava { width: 46px; height: 46px; flex: none; border-radius: 8px; background: var(--green-strong); color: #fff; display: grid; place-content: center; font-family: var(--font-display); font-weight: 700; font-size: 18px; }
.author p { margin: 0; font-size: 14px; color: var(--muted); }
.author b { display: block; color: var(--ink); margin-bottom: 4px; }

.post-cta { margin-top: 32px; padding: 28px; border-radius: var(--r); background: var(--ink); color: #fff; display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between; }
.post-cta p { margin: 0; color: rgba(255,255,255,.72); font-size: 15px; max-width: 44ch; }
.post-cta b { display: block; color: #fff; font-family: var(--font-display); font-size: 19px; margin-bottom: 4px; }

.related { margin-top: 48px; }
.related h2 { font-family: var(--font-display); font-size: 22px; margin-bottom: 16px; }
.related__grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.related__card { border: 1px solid var(--line); border-radius: var(--r); padding: 18px; background: #fff; transition: border-color .18s, transform .18s var(--ease); }
.related__card:hover { border-color: var(--green-tint); transform: translateY(-2px); box-shadow: var(--shadow); }
.related__card span { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--green-strong); }
.related__card b { display: block; margin-top: 8px; color: var(--ink); font-family: var(--font-display); font-size: 16px; font-weight: 600; line-height: 1.25; }

/* ---------- blog index hero ---------- */
.blog-hero { position: relative; overflow: hidden; padding: calc(76px + 64px) 0 60px; border-bottom: 1px solid var(--line);
  background: radial-gradient(130% 170% at 6% -30%, rgba(14,159,91,.18), transparent 55%), linear-gradient(180deg, var(--paper-2), var(--paper)); }
.blog-hero::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(16,22,26,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(16,22,26,.05) 1px, transparent 1px);
  background-size: 48px 48px; -webkit-mask-image: linear-gradient(180deg, #000, transparent 88%); mask-image: linear-gradient(180deg, #000, transparent 88%); }
.blog-hero__in { position: relative; z-index: 1; width: min(100% - 40px, 1080px); margin-inline: auto; }
.blog-hero .kicker { display: inline-flex; align-items: center; gap: 10px; }
.blog-hero .kicker::before { content: ""; width: 30px; height: 2px; background: var(--green); }
.blog-hero h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(40px, 6.4vw, 88px); line-height: .98; letter-spacing: -.03em; margin: 16px 0 20px; max-width: 16ch; }
.blog-hero p { color: var(--muted); max-width: 62ch; font-size: clamp(16px, 1.7vw, 20px); }
.blog-list { padding: 48px 0 var(--sp-sm); display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.post-card { border: 1px solid var(--line); border-radius: var(--r); padding: 26px; background: #fff; display: flex; flex-direction: column; transition: border-color .18s, transform .18s var(--ease), box-shadow .18s var(--ease); }
.post-card:hover { border-color: var(--green-tint); transform: translateY(-3px); box-shadow: var(--shadow); }
.post-card__cat { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--green-strong); }
.post-card h2 { font-family: var(--font-display); font-weight: 600; font-size: 22px; line-height: 1.15; margin: 12px 0 10px; }
.post-card p { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.post-card__foot { margin-top: auto; display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: var(--dim); }

@media (max-width: 760px) {
  .blog-list { grid-template-columns: 1fr; }
  .related__grid { grid-template-columns: 1fr; }
  .post-cta { flex-direction: column; align-items: flex-start; }
}

/* ---------- article hero ---------- */
.post-hero { position: relative; overflow: hidden; margin: 0 0 36px; padding: calc(76px + 44px) 0 48px; border-bottom: 1px solid var(--line);
  background: radial-gradient(130% 170% at 94% -40%, rgba(14,159,91,.16), transparent 58%), linear-gradient(180deg, var(--paper-2), var(--paper)); }
.post-hero::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(16,22,26,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(16,22,26,.05) 1px, transparent 1px);
  background-size: 48px 48px; -webkit-mask-image: linear-gradient(180deg, #000, transparent 86%); mask-image: linear-gradient(180deg, #000, transparent 86%); }
.post-hero__in { position: relative; z-index: 1; width: min(100% - 40px, 1080px); margin-inline: auto; }
.post-hero .crumbs { margin-bottom: 26px; }
.post-hero__txt .kicker { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.post-hero__txt .kicker::before { content: ""; width: 30px; height: 2px; background: var(--green); }
.post-hero__txt h1 { font-family: var(--font-display); font-weight: 700; margin: 0 0 20px; font-size: clamp(32px, 5.2vw, 66px); line-height: 1.01; letter-spacing: -.028em; max-width: 20ch; }
.post-hero__txt .lede { font-size: clamp(17px, 1.9vw, 22px); color: var(--muted); max-width: 66ch; }

/* ---------- article body: less flat ---------- */
.post p { font-size: 17px; line-height: 1.72; }
.post h2 { margin-top: 52px; }
.tldr { background: var(--green-tint); border: 1px solid #cfe8da; border-radius: 14px; padding: 22px 24px; margin: 0 0 36px; }
.tldr .kicker { margin-bottom: 10px; }
.tldr ul { display: grid; gap: 8px; }
.tldr li { position: relative; padding-left: 24px; color: var(--ink); font-size: 16px; }
.tldr li::before { content: "→"; position: absolute; left: 0; color: var(--green-strong); }
.post .lede { color: var(--ink); }

/* ---------- нормы и первоисточники ---------- */
.sources { margin: 44px 0 8px; padding: 24px 26px; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper-2); }
.post .sources { margin: 44px 0 8px; }
.sources h2 { font-family: var(--font-display); font-size: 18px; margin: 0 0 14px; }
.sources ul { display: grid; gap: 9px; margin: 0; padding: 0; }
.sources li { position: relative; padding-left: 22px; color: var(--muted); font-size: 14.5px; line-height: 1.5; }
.sources li::before { content: "→"; position: absolute; left: 0; color: var(--green-strong); }
.sources a { color: var(--green-strong); border-bottom: 1px solid var(--green-tint); }
.sources a:hover { border-color: var(--green-strong); }
@media (min-width: 1700px) { .sources { padding: 30px 34px; } .sources li { font-size: 15.5px; } }
/* посадочные: блок «Нормы» — центрированная карточка */
.wrap.sources { max-width: 920px; margin: 44px auto 8px; }
.wrap.sources h2 { text-align: center; }

/* ============================================================
   Крупные экраны: 2K / 4K / retina
   ============================================================ */
@media (min-width: 1200px) {
  .post__wrap { width: min(100% - 64px, 800px); }
}
@media (min-width: 1500px) {
  .post__wrap { width: min(100% - 80px, 840px); }
  .post-hero__in, .blog-hero__in { width: min(100% - 80px, 1200px); }
  .post p { font-size: 18px; }
}
@media (min-width: 1700px) {
  .post__wrap { width: min(100% - 80px, 880px); }
  .post-hero__in, .blog-hero__in { width: min(100% - 80px, 1320px); }
  .post p { font-size: 18.5px; }
  .post h2 { font-size: clamp(26px, 1.7vw, 34px); }
  .post-hero__txt h1 { font-size: clamp(36px, 3.4vw, 72px); }
  .post-hero__txt .lede { font-size: clamp(19px, 1.2vw, 24px); }
  .blog-hero h1 { font-size: clamp(48px, 4.4vw, 104px); }
  .blog-hero p { font-size: clamp(18px, 1.2vw, 23px); }
  .blog-list { grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
  .blog-list .post-card h2 { font-size: 24px; }
}
@media (min-width: 2300px) {
  .post__wrap { width: min(100% - 120px, 960px); }
  .post-hero__in, .blog-hero__in { width: min(100% - 120px, 1560px); }
  .post p { font-size: 19.5px; }
  .post h2 { font-size: clamp(30px, 1.4vw, 40px); }
  .post-hero__txt h1 { font-size: clamp(48px, 2.6vw, 92px); }
  .blog-hero h1 { font-size: clamp(64px, 3vw, 136px); }
  .post-hero { padding: calc(76px + 60px) 0 64px; }
  .blog-hero { padding: calc(76px + 84px) 0 84px; }
}