/* ===== BLOG (extends site style.css) ===== */
.blog-hero { background: var(--steel); color: var(--paper); padding: 72px 0 88px; position: relative; overflow: hidden; border-bottom: 4px solid var(--brick); }
.blog-hero__bg { position: absolute; inset: 0; opacity: .5; pointer-events: none; }
.blog-hero__eyebrow { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; align-items: center; }
.blog-hero h1 { font-size: clamp(36px, 5vw, 60px); font-weight: 300; letter-spacing: -0.02em; line-height: 1.08; color: var(--paper); margin-bottom: 20px; }
.blog-hero h1 em { font-style: normal; color: var(--brick-3); font-weight: 500; }
.blog-hero__lead { font-size: 18px; line-height: 1.55; color: var(--text-inv-2); max-width: 720px; }
.blog-hero__meta { display: flex; gap: 40px; margin-top: 36px; flex-wrap: wrap; font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-inv-2); }
.blog-hero__meta b { color: var(--paper); font-weight: 500; font-size: 22px; font-family: var(--f-display); letter-spacing: -0.01em; text-transform: none; display: block; margin-top: 4px; }

/* Filter bar */
.blog-filter { background: var(--paper-2); border-bottom: 1px solid var(--line); padding: 20px 0; position: sticky; top: 68px; z-index: 20; }
.blog-filter__inner { display: flex; gap: 20px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.blog-filter__pills { display: flex; gap: 8px; flex-wrap: wrap; }
.bp-pill { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; font: 600 12px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; border: 1.5px solid var(--steel); background: transparent; color: var(--steel); cursor: pointer; border-radius: 2px; transition: all 150ms ease; }
.bp-pill:hover { background: var(--steel); color: var(--paper); }
.bp-pill.is-active { background: var(--brick); border-color: var(--brick); color: var(--paper); }
.bp-pill__count { font-size: 11px; opacity: .7; }
.blog-search { position: relative; }
.blog-search input { width: 260px; padding: 12px 14px 12px 40px; border: 1.5px solid var(--steel); background: var(--paper); font: 400 14px/1 var(--f-sans); color: var(--text); border-radius: 2px; }
.blog-search input:focus { outline: 2px solid var(--brick); outline-offset: -1px; }
.blog-search svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); pointer-events: none; }
@media (max-width: 640px) { .blog-search input { width: 100%; } .blog-search { width: 100%; } }

/* Grid of cards */
.blog-grid { padding: 64px 0 96px; }
.blog-grid__wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1.5px solid var(--steel); border-left: 1.5px solid var(--steel); }
.bp-card { display: flex; flex-direction: column; padding: 28px; background: var(--paper); border-right: 1.5px solid var(--steel); border-bottom: 1.5px solid var(--steel); position: relative; overflow: hidden; text-decoration: none; color: var(--text); transition: background 180ms ease, transform 180ms ease; min-height: 320px; }
.bp-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--brick); transform: scaleX(0); transform-origin: left; transition: transform 200ms ease; }
.bp-card:hover { background: var(--paper-2); }
.bp-card:hover::before { transform: scaleX(1); }
.bp-card__top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.bp-card__cat { font: 500 11px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--brick); padding: 6px 10px; border: 1px solid var(--brick); border-radius: 2px; }
.bp-card__cat--tech { color: var(--steel); border-color: var(--steel); }
.bp-card__cat--proc { color: var(--ochre-2); border-color: var(--ochre-2); }
.bp-card__cat--nav { color: var(--forest); border-color: var(--forest); }
.bp-card__num { font: 500 11px/1 var(--f-mono); color: var(--text-3); letter-spacing: .1em; }
.bp-card__title { font-family: var(--f-display); font-weight: 500; font-size: 22px; line-height: 1.2; letter-spacing: -0.01em; color: var(--steel); margin: 0 0 16px; flex: 1; }
.bp-card__meta { display: flex; gap: 14px; font: 400 12px/1 var(--f-mono); color: var(--text-3); letter-spacing: .04em; padding-top: 16px; border-top: 1px dashed var(--line); margin-top: auto; }
.bp-card__meta strong { color: var(--steel); font-weight: 500; }
.bp-card__arrow { position: absolute; right: 24px; bottom: 24px; font-family: var(--f-mono); font-size: 20px; color: var(--brick); opacity: 0; transform: translateX(-6px); transition: all 200ms ease; }
.bp-card:hover .bp-card__arrow { opacity: 1; transform: translateX(0); }
@media (max-width: 960px) { .blog-grid__wrap { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .blog-grid__wrap { grid-template-columns: 1fr; } .bp-card { min-height: 260px; padding: 22px; } .bp-card__title { font-size: 19px; } .blog-filter { top: 60px; padding: 14px 0; } .blog-filter__inner { gap: 12px; } .bp-pill { padding: 8px 12px; font-size: 11px; } }

.blog-empty { padding: 60px 20px; text-align: center; color: var(--text-3); font-family: var(--f-mono); font-size: 13px; letter-spacing: .05em; text-transform: uppercase; grid-column: 1 / -1; border-right: 1.5px solid var(--steel); border-bottom: 1.5px solid var(--steel); }

/* ===== TOC ABOVE ARTICLE ===== */
.art__toc { margin: 0 0 40px; border: 1.5px solid var(--steel); background: var(--paper-2); padding: 0; }
.art__toc[open] > .art__toc-summary { border-bottom: 1px dashed var(--line); }
.art__toc-summary { list-style: none; cursor: pointer; display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 18px 22px; }
.art__toc-summary::-webkit-details-marker { display: none; }
.art__toc-summary::after { content: '+'; font: 400 22px/1 var(--f-mono); color: var(--brick); margin-left: 8px; transition: transform 200ms ease; }
.art__toc[open] > .art__toc-summary::after { content: '−'; }
.art__toc-eyebrow { font: 700 11px/1 var(--f-mono); letter-spacing: .14em; color: var(--brick); text-transform: uppercase; }
.art__toc-count { font: 500 12px/1 var(--f-mono); color: var(--text-3); letter-spacing: .06em; }
.art__toc-list { list-style: none; padding: 12px 22px 20px; margin: 0; counter-reset: toc; column-count: 2; column-gap: 32px; }
.art__toc-list li { counter-increment: toc; padding: 6px 0 6px 32px; position: relative; break-inside: avoid; }
.art__toc-list li::before { content: counter(toc, decimal-leading-zero); position: absolute; left: 0; top: 7px; font: 500 11px/1 var(--f-mono); color: var(--brick); letter-spacing: .04em; }
.art__toc-list a { font-size: 14px; line-height: 1.4; color: var(--text-2); border-bottom: 1px solid transparent; transition: color 150ms, border-color 150ms; }
.art__toc-list a:hover { color: var(--brick); border-bottom-color: var(--brick); }
@media (max-width: 640px) { .art__toc-list { column-count: 1; } }

/* ===== ARTICLE PAGE ===== */
.art-hero { background: var(--paper-2); border-bottom: 1.5px solid var(--line); padding: 44px 0 56px; position: relative; }
.art-hero__bread { font: 500 12px/1.5 var(--f-mono); color: var(--text-3); letter-spacing: .06em; margin-bottom: 24px; text-transform: uppercase; }
.art-hero__bread a { color: var(--text-2); border-bottom: 1px solid transparent; }
.art-hero__bread a:hover { color: var(--brick); border-bottom-color: currentColor; }
.art-hero__stamps { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.art-hero h1 { font-family: var(--f-display); font-weight: 500; font-size: clamp(28px, 4vw, 46px); line-height: 1.15; letter-spacing: -0.02em; color: var(--steel); max-width: 900px; margin: 0 0 20px; }
.art-hero__query { font: 400 13px/1.5 var(--f-mono); color: var(--text-2); background: var(--paper); border-left: 3px solid var(--brick); padding: 10px 14px; max-width: 720px; margin-bottom: 24px; }
.art-hero__query b { color: var(--steel); font-weight: 500; }
.art-hero__byline { display: flex; gap: 32px; padding-top: 20px; border-top: 1px dashed var(--line); font: 400 13px/1.5 var(--f-sans); color: var(--text-2); flex-wrap: wrap; }
.art-hero__byline > div { display: flex; flex-direction: column; gap: 2px; }
.art-hero__byline em { font: 500 11px/1 var(--f-mono); color: var(--text-3); font-style: normal; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 4px; }
.art-hero__byline b { color: var(--steel); font-weight: 500; font-size: 14px; }
.art-hero__role { color: var(--text-3); font-size: 12px; font-family: var(--f-mono); letter-spacing: 0.02em; margin-top: 2px; }

.art-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 64px; padding: 56px 0 96px; align-items: start; }
.art-body { max-width: 780px; font-family: var(--f-sans); font-size: 17px; line-height: 1.65; color: var(--text); }
.art__p { margin: 0 0 20px; }
.art__p strong { color: var(--steel); font-weight: 600; }
.art__h2 { font-family: var(--f-display); font-weight: 500; font-size: 28px; line-height: 1.25; letter-spacing: -0.01em; color: var(--steel); margin: 48px 0 20px; padding-top: 24px; border-top: 1.5px solid var(--steel); display: flex; gap: 14px; align-items: baseline; }
.art__h2-num { font: 500 14px/1 var(--f-mono); background: var(--steel); color: var(--paper); padding: 6px 10px; letter-spacing: .04em; flex-shrink: 0; align-self: flex-start; }
.art__h2-txt { flex: 1; }
.art__h2--stamp .art__h2-mark { font: 700 12px/1 var(--f-mono); letter-spacing: .12em; background: var(--brick); color: var(--paper); padding: 8px 12px; text-transform: uppercase; flex-shrink: 0; align-self: flex-start; }
.art__h2--red { border-top-color: var(--brick); color: var(--brick-2); }
.art__h2--red .art__h2-badge { background: var(--brick); color: var(--paper); padding: 8px 12px; font: 700 14px/1 var(--f-mono); }
.art__h2--green { border-top-color: var(--forest); color: var(--forest); }
.art__h2--green .art__h2-badge { background: var(--forest); color: var(--paper); padding: 8px 12px; font: 700 14px/1 var(--f-mono); }
.art__h3 { font-family: var(--f-display); font-weight: 500; font-size: 20px; line-height: 1.3; color: var(--steel); margin: 32px 0 14px; display: flex; gap: 12px; align-items: baseline; }
.art__h3-num { font: 500 12px/1 var(--f-mono); color: var(--brick); background: var(--brick-tint); padding: 5px 8px; letter-spacing: .04em; }

.art__warn { display: flex; gap: 14px; align-items: flex-start; padding: 14px 18px; background: var(--amber-tint); border-left: 3px solid var(--ochre-2); color: var(--text); font-size: 14px; line-height: 1.5; margin: 0 0 28px; border-radius: 2px; }
.art__warn-tag { font: 700 11px/1 var(--f-mono); letter-spacing: .12em; color: var(--ochre-2); background: rgba(214,154,46,0.15); padding: 5px 8px; text-transform: uppercase; flex-shrink: 0; margin-top: 2px; }
.art__warn-txt { flex: 1; }

.art__tldr { background: var(--paper-2); border: 1.5px solid var(--steel); padding: 24px 28px; margin: 0 0 32px; position: relative; }
.art__tldr::before { content: 'КРАТКО'; position: absolute; top: -10px; left: 20px; background: var(--paper); padding: 0 8px; font: 700 10px/1 var(--f-mono); letter-spacing: .15em; color: var(--brick); }
.art__tldr-list { list-style: none; padding: 0; margin: 0; }
.art__tldr-list li { position: relative; padding: 10px 0 10px 26px; border-bottom: 1px dashed var(--line); font-size: 15px; line-height: 1.5; }
.art__tldr-list li:last-child { border-bottom: 0; }
.art__tldr-list li::before { content: '//'; position: absolute; left: 0; top: 10px; color: var(--brick); font-family: var(--f-mono); font-weight: 700; font-size: 12px; }

.art__alert { list-style: none; padding: 22px 26px; margin: 0 0 32px; border: 1.5px solid; border-radius: 2px; }
.art__alert li { position: relative; padding: 8px 0 8px 24px; font-size: 15px; line-height: 1.55; border-bottom: 1px dashed rgba(0,0,0,0.1); }
.art__alert li:last-child { border-bottom: 0; }
.art__alert li::before { position: absolute; left: 0; top: 8px; font-family: var(--f-mono); font-weight: 700; }
.art__alert--red { background: var(--rust-tint); border-color: var(--brick); }
.art__alert--red li::before { content: '!'; color: var(--brick); }
.art__alert--green { background: var(--forest-tint); border-color: var(--forest); }
.art__alert--green li::before { content: '+'; color: var(--forest); }

.art__data { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 0; margin: 0 0 28px; border: 1px solid var(--line); }
.art__data-cell { padding: 10px 14px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); font: 500 13px/1.4 var(--f-mono); color: var(--text); }

.art__faq { margin: 0 0 32px; border-top: 1.5px solid var(--steel); }
.art__faq-item { border-bottom: 1px solid var(--line); padding: 0; }
.art__faq-item > summary { list-style: none; cursor: pointer; padding: 18px 40px 18px 0; position: relative; font-family: var(--f-display); font-weight: 500; font-size: 17px; color: var(--steel); line-height: 1.35; }
.art__faq-item > summary::-webkit-details-marker { display: none; }
.art__faq-item > summary::after { content: '+'; position: absolute; right: 8px; top: 50%; transform: translateY(-50%); font: 400 22px/1 var(--f-mono); color: var(--brick); }
.art__faq-item[open] > summary::after { content: '−'; }
.art__faq-a { padding: 0 40px 20px 0; font-size: 15px; line-height: 1.6; color: var(--text-2); }

.art__myths { display: grid; grid-template-columns: 1fr; gap: 0; margin: 0 0 32px; }
.art__myth { padding: 16px 20px; border-bottom: 1px solid var(--line); font-size: 15px; line-height: 1.55; background: var(--paper-2); }
.art__myth:first-child { border-top: 1px solid var(--line); }

.art__conclusion { list-style: none; padding: 0; margin: 0 0 32px; counter-reset: c; }
.art__conclusion li { counter-increment: c; padding: 20px 20px 20px 78px; background: var(--paper-2); border-left: 3px solid var(--brick); margin-bottom: 8px; position: relative; font-size: 16px; line-height: 1.55; }
.art__conclusion li::before { content: '0' counter(c); position: absolute; left: 20px; top: 18px; font: 300 34px/1 var(--f-display); color: var(--brick); letter-spacing: -0.02em; }

.art__sources { list-style: none; padding: 0; margin: 0 0 32px; }
.art__sources li { padding: 10px 0 10px 20px; border-bottom: 1px dashed var(--line); font-size: 13px; line-height: 1.5; color: var(--text-2); font-family: var(--f-mono); position: relative; }
.art__sources li::before { content: '§'; position: absolute; left: 0; top: 10px; color: var(--brick); }

/* ===== ARTICLE TABLE ===== */
.art__tbl-wrap { margin: 0 0 32px; overflow-x: auto; border: 1.5px solid var(--steel); background: var(--paper); }
.art__tbl { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.45; }
.art__tbl thead th { background: var(--steel); color: var(--paper); font: 600 12px/1.3 var(--f-mono); letter-spacing: 0.05em; text-transform: uppercase; padding: 12px 14px; text-align: left; border-right: 1px solid var(--steel-2); vertical-align: middle; }
.art__tbl thead th:last-child { border-right: 0; }
.art__tbl tbody td { padding: 12px 14px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); vertical-align: top; color: var(--text); }
.art__tbl tbody td:last-child { border-right: 0; }
.art__tbl tbody tr:nth-child(odd) td { background: var(--paper-2); }
.art__tbl tbody td:first-child { font-weight: 500; color: var(--steel); font-family: var(--f-display); }
@media (max-width: 640px) { .art__tbl { font-size: 13px; } .art__tbl thead th, .art__tbl tbody td { padding: 10px 10px; } }

/* ===== SIMPLE LIST (ul/ol) ===== */
.art__list { list-style: none; padding: 0 0 0 4px; margin: 0 0 24px; counter-reset: al; }
.art__list li { position: relative; padding: 8px 0 8px 28px; border-bottom: 1px dashed var(--line); font-size: 15px; line-height: 1.55; }
.art__list li:last-child { border-bottom: 0; }
.art__list li::before { content: '—'; position: absolute; left: 8px; top: 8px; color: var(--brick); font-family: var(--f-mono); font-weight: 700; font-size: 14px; }
ol.art__list { counter-reset: al; }
ol.art__list li { counter-increment: al; padding-left: 40px; }
ol.art__list li::before { content: counter(al, decimal-leading-zero); left: 0; font: 500 12px/1 var(--f-mono); color: var(--brick); background: var(--brick-tint); padding: 6px 7px; top: 6px; letter-spacing: 0.04em; }

/* ===== CHECKLIST (grouped list with subheads) ===== */
.art__checklist { margin: 28px 0 32px; border: 1.5px solid var(--steel); background: var(--paper); }
.art__checklist-head { font: 500 13px/1.3 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--paper); background: var(--steel); padding: 12px 18px; margin: 0; border-top: 4px solid var(--paper); }
.art__checklist > .art__checklist-head:first-child { border-top: 0; }
.art__checklist-list { list-style: none; padding: 4px 18px 14px; margin: 0; }
/* Ensure a paragraph or heading that follows a checklist has breathing room */
.art__checklist + p.art__p,
.art__checklist + .art__warn,
.art__checklist + .art__data,
.art__checklist + .art__tbl-wrap { margin-top: 24px; }
/* Space between stacked checklists */
.art__checklist + .art__checklist { margin-top: 24px; }
.art__checklist-list li { padding: 8px 0 8px 26px; position: relative; border-bottom: 1px dashed var(--line); font-size: 15px; line-height: 1.5; }
.art__checklist-list li:last-child { border-bottom: 0; }
ol.art__checklist-list { counter-reset: cli; }
ol.art__checklist-list li { counter-increment: cli; }
ol.art__checklist-list li::before { content: counter(cli, decimal-leading-zero) !important; color: var(--brick) !important; letter-spacing: 0.02em !important; }
.art__checklist-list li::before { content: '[ ]'; position: absolute; left: 0; top: 8px; font: 700 12px/1.2 var(--f-mono); color: var(--brick); letter-spacing: -0.05em; }
@media (max-width: 640px) { .art__checklist-head { font-size: 12px; padding: 10px 14px; } .art__checklist-list { padding: 4px 14px 10px; } .art__checklist-list li { padding-left: 22px; font-size: 14px; } }

/* ===== MYTHS (Миф / Факт pairs) ===== */
.art__myths { margin: 0 0 32px; border-top: 1.5px solid var(--steel); }
.art__myth-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-bottom: 1px solid var(--line); }
.art__myth-q, .art__myth-a { display: flex; gap: 12px; padding: 16px 20px; align-items: flex-start; font-size: 15px; line-height: 1.5; }
.art__myth-q { background: var(--paper-2); border-right: 1px solid var(--line); }
.art__myth-a { background: var(--paper); }
.art__myth-tag { font: 700 10px/1 var(--f-mono); letter-spacing: 0.15em; padding: 5px 8px; text-transform: uppercase; flex-shrink: 0; margin-top: 2px; align-self: flex-start; }
.art__myth-tag--myth { background: var(--rust-tint); color: var(--brick-2); }
.art__myth-tag--fact { background: var(--forest-tint); color: var(--forest); }
@media (max-width: 640px) { .art__myth-row { grid-template-columns: 1fr; } .art__myth-q { border-right: 0; border-bottom: 1px dashed var(--line); } }

/* Sidebar TOC + related on desktop */
.art-side { position: sticky; top: 92px; align-self: start; display: flex; flex-direction: column; gap: 28px; }
.art-side__box { border: 1.5px solid var(--steel); padding: 20px 22px; background: var(--paper); }
.art-side__title { font: 700 11px/1 var(--f-mono); letter-spacing: .12em; color: var(--brick); text-transform: uppercase; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px dashed var(--line); }
.art-side__list { list-style: none; padding: 0; margin: 0; }
.art-side__list li { padding: 6px 0; }
.art-side__list a { font-size: 13px; line-height: 1.4; color: var(--text-2); display: block; padding: 4px 0 4px 12px; border-left: 2px solid transparent; transition: all 150ms ease; }
.art-side__list a:hover { color: var(--brick); border-left-color: var(--brick); }
.art-side__box--dark { background: var(--steel); border-color: var(--steel); color: var(--paper); }
.art-side__box--dark .art-side__title { color: var(--brick-3); border-bottom-color: rgba(244,237,224,0.2); }
.art-side__box--dark a { color: var(--text-inv-2); }
.art-side__box--dark a:hover { color: var(--paper); }
.art-side__cta { display: block; padding: 14px 16px; background: var(--brick); color: var(--paper); font: 600 12px/1.3 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; text-align: center; margin-top: 12px; transition: background 150ms ease; }
.art-side__cta:hover { background: var(--brick-2); color: var(--paper); }

/* Related section (below article) */
.art-related { padding: 72px 0 96px; background: var(--concrete); border-top: 1.5px solid var(--steel); }
.art-related__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 32px; gap: 20px; flex-wrap: wrap; }
.art-related__head h2 { font-family: var(--f-display); font-weight: 500; font-size: 32px; letter-spacing: -0.01em; color: var(--steel); margin: 0; }
.art-related__eyebrow { font: 500 12px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--brick); margin-bottom: 8px; display: block; }
.art-related__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1.5px solid var(--steel); border-left: 1.5px solid var(--steel); }
@media (max-width: 960px) { .art-related__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .art-related__grid { grid-template-columns: 1fr; } }

.art-next-cta { padding: 60px 0; background: var(--steel); color: var(--paper); }
.art-next-cta__inner { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; }
.art-next-cta h3 { font-family: var(--f-display); font-weight: 400; font-size: 30px; line-height: 1.2; color: var(--paper); letter-spacing: -0.01em; margin: 0 0 8px; }
.art-next-cta p { color: var(--text-inv-2); font-size: 15px; margin: 0; max-width: 640px; }
@media (max-width: 720px) { .art-next-cta__inner { grid-template-columns: 1fr; gap: 20px; } }

@media (max-width: 1024px) { .art-wrap { grid-template-columns: 1fr; gap: 40px; } .art-side { position: static; order: 2; } }
@media (max-width: 640px) { .art-body { font-size: 16px; } .art__h2 { font-size: 22px; margin-top: 36px; padding-top: 18px; gap: 10px; } .art__h2-num { padding: 5px 8px; font-size: 12px; } .art__h3 { font-size: 17px; } .art-hero { padding: 32px 0 40px; } .art-related { padding: 52px 0 72px; } .art-related__head h2 { font-size: 24px; } }