/*
===============================================================================
 FILE: /css/articles.css
 VERSION: 1.5
 PROJECT: ОКНА ORIGINAL — Articles Engine
 DATE: 2026-09-04

 v1.3:
 - article body expanded to use the full article stage;
 - removed the extra inner 820px text constraint that still left large side voids;
 - article stage widened from 920px to 1080px;
 - comparison table min-width increased to 920px inside the wider body;
 - desktop hero slightly tightened again.

 v1.2:
 - removed permanent left sidebar rail that created a large empty column;
 - TOC is now a compact full-width editorial block above article content;
 - article text uses an 820px reading measure inside a 920px content stage;
 - technical table is contained by the article stage and scrolls internally;
 - desktop hero gap slightly tightened.

 Editorial layout:
 - readable line length;
 - restrained weight 400/500;
 - 17px body inherited from typography layer;
 - responsive TOC and wide technical tables.
===============================================================================
*/
.articles-index,
.article-page{padding:30px 0 56px}
.articles-index__head{max-width:820px;margin-bottom:28px}
.articles-kicker{display:block;margin-bottom:8px;font-size:13px;font-weight:500;letter-spacing:.04em;text-transform:uppercase;color:#617684}
.articles-index__head h1{margin:0 0 12px;font-size:clamp(2rem,4vw,3.2rem);line-height:1.08;font-weight:500}
.articles-index__head p{max-width:760px;margin:0;color:#5f6f79;font-size:17px;line-height:1.62}

.articles-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.article-card{overflow:hidden;border:1px solid #dce5e9;border-radius:18px;background:#fff;box-shadow:0 8px 28px rgba(28,54,70,.05)}
.article-card__image{display:block;aspect-ratio:16/8;overflow:hidden;background:#edf3f5}
.article-card__image img{width:100%;height:100%;object-fit:cover;display:block}
.article-card__body{padding:22px}
.article-card__meta,.article-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:#6e7f89;font-size:13px}
.article-card__meta span:first-child,.article-meta span:first-child{color:#315f7c;font-weight:500}
.article-card h2{margin:10px 0 10px;font-size:24px;line-height:1.24;font-weight:500}
.article-card h2 a{color:#213b4b;text-decoration:none}
.article-card p{margin:0;color:#5d6c75;line-height:1.6}
.article-card__foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:20px;padding-top:15px;border-top:1px solid #edf1f3;font-size:14px;color:#7a8890}
.article-card__foot a{color:#315f7c;text-decoration:none;font-weight:500}
.article-empty{padding:30px;border:1px dashed #cbd8df;border-radius:15px;color:#71818b}

.article-hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:28px;align-items:center;padding-top:12px;padding-bottom:28px}
.article-hero__copy{max-width:830px}
.article-meta{margin-bottom:13px}
.article-hero h1{margin:0;font-size:clamp(2.1rem,4.5vw,3.75rem);line-height:1.06;letter-spacing:-.025em;font-weight:500;color:#203846}
.article-lead{margin:20px 0 0;max-width:800px;font-size:20px!important;line-height:1.58!important;color:#536773}
.article-updated{margin:12px 0 0;font-size:13px!important;color:#86939a}
.article-cover{margin:0;overflow:hidden;border-radius:20px;aspect-ratio:4/3;background:#eef3f5;box-shadow:0 14px 38px rgba(38,65,82,.08)}
.article-cover img{width:100%;height:100%;object-fit:cover;display:block}

..article-layout{
    display:block;
    width:min(100%,1080px);
    margin:0 auto;
}
.article-toc{
    position:static;
    margin:0 0 28px;
    padding:18px 20px;
    border:1px solid #dce4e8;
    border-radius:14px;
    background:#fbfcfc;
}
.article-toc strong{display:block;margin-bottom:10px;font-size:14px;font-weight:500;color:#394f5c}
.article-toc nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 22px}
.article-toc a{font-size:14px;line-height:1.4;color:#667983;text-decoration:none}
.article-toc a:hover{color:#315f7c}

.article-body{
    min-width:0;
    width:100%;
    color:#344a57;
}
.article-body>p,
.article-body>h2,
.article-body>h3,
.article-body>.article-list,
.article-body>.article-note,
.article-body>.article-links,
.article-body>.article-cta,
.article-source{
    width:100%;
    max-width:none;
    margin-left:0;
    margin-right:0;
}
.article-body>p{margin-top:0;margin-bottom:20px}
.article-body h2{scroll-margin-top:100px;margin-top:42px;margin-bottom:15px;font-size:30px;line-height:1.18;font-weight:500;color:#213b4b}
.article-body h3{scroll-margin-top:100px;margin-top:30px;margin-bottom:12px;font-size:22px;line-height:1.25;font-weight:500}
.article-list{margin:0 0 22px;padding-left:1.2em}
.article-list li{margin:7px 0}

.article-note{margin:24px 0;padding:18px 20px;border-left:3px solid #4e9a9a;border-radius:0 13px 13px 0;background:#f3f8f8}
.article-note strong{display:block;margin-bottom:5px;font-size:15px;font-weight:500}
.article-note p{margin:0!important;font-size:16px!important;line-height:1.58!important}

.article-table-wrap{
    width:100%;
    max-width:100%;
    margin:24px 0 30px;
    overflow-x:auto;
    overflow-y:hidden;
    border:1px solid #dbe5e9;
    border-radius:14px;
    background:#fff;
    overscroll-behavior-inline:contain;
    -webkit-overflow-scrolling:touch;
}
..article-table{
    width:100%;
    min-width:920px;
    border-collapse:collapse;
}
.article-table th,.article-table td{padding:12px 13px;border-right:1px solid #e7edef;border-bottom:1px solid #e7edef;text-align:left;vertical-align:top;font-size:14px!important;line-height:1.4}
.article-table thead th{position:sticky;top:0;background:#f4f7f8;color:#526773;font-weight:500}
.article-table tbody th{background:#fafcfc;font-weight:500;white-space:nowrap}
.article-table a{color:#315f7c;text-decoration:none}

.article-links{margin:24px 0;padding:20px;border:1px solid #dfe7eb;border-radius:15px;background:#fbfcfc}
.article-links h3{margin:0 0 12px}
.article-links>a{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:43px;padding:8px 0;border-bottom:1px solid #e9eef0;color:#315f7c;text-decoration:none;font-size:15px}
.article-links>a:last-child{border-bottom:0}

.article-cta{margin:30px 0;padding:24px 26px;border:1px solid #d9e7e7;border-radius:18px;background:linear-gradient(135deg,#edf5f5,#f7f9fa)}
.article-cta h2{margin:0 0 9px;font-size:24px}
.article-cta p{margin:0!important;color:#5b6e79}
.article-cta__actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:17px}

.article-source{margin-top:34px;padding-top:20px;border-top:1px solid #dfe6e9;color:#73838d}
.article-source strong{display:block;margin-bottom:5px;font-size:14px}
.article-source p{margin:0!important;font-size:14px!important;line-height:1.55!important}

@media(max-width:900px){
    .articles-grid{grid-template-columns:1fr}
    .article-hero{grid-template-columns:1fr;gap:22px;padding-bottom:26px}
    .article-cover{max-height:360px}
    .article-layout{width:100%}
    .article-toc{margin-bottom:24px;padding:16px 18px}
    .article-toc nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 16px}
    .article-body>p,
    .article-body>h2,
    .article-body>h3,
    .article-body>.article-list,
    .article-body>.article-note,
    .article-body>.article-links,
    .article-body>.article-cta,
    .article-source{width:100%}
}
@media(max-width:640px){
    .articles-index,.article-page{padding-top:16px;padding-bottom:38px}
    .articles-index__head{margin-bottom:20px}
    .articles-grid{gap:16px}
    .article-card__body{padding:18px}
    .article-card h2{font-size:21px}
    .article-card__foot{align-items:flex-start;flex-direction:column}
    .article-hero{padding-top:2px}
    .article-hero h1{font-size:clamp(2rem,10vw,2.75rem)}
    .article-lead{font-size:18px!important}
    .article-cover{border-radius:15px;aspect-ratio:16/10}
    .article-toc{margin-bottom:22px;padding:15px 16px}
    .article-toc nav{grid-template-columns:1fr}
    .article-body h2{margin-top:34px;font-size:26px}
    .article-body h3{font-size:20px}
    .article-note{margin:20px 0;padding:16px}
    .article-table-wrap{width:100%;max-width:100%;margin-left:0}
    .article-cta{margin:26px 0;padding:20px}
}


/* ==========================================================================
   v1.4 — article actions: contextual consultation, share, universal bottom CTA
   ========================================================================== */
.article-consultation{
    width:100%;
    margin:30px 0 34px;
    padding:22px 24px;
    display:grid;
    grid-template-columns:44px minmax(0,1fr) auto;
    gap:18px;
    align-items:center;
    border:1px solid #d5e6e6;
    border-radius:18px;
    background:linear-gradient(135deg,#eff7f7 0%,#f8fafb 100%);
}
.article-consultation__icon{
    width:44px;
    height:44px;
    display:grid;
    place-items:center;
    border-radius:50%;
    background:#fff;
    border:1px solid #cfe0e0;
    color:#346d72;
    font-size:22px;
    font-weight:500;
}
.article-consultation__eyebrow,
.article-bottom-cta__eyebrow{
    display:block;
    margin-bottom:5px;
    color:#55767c;
    font-size:13px;
    font-weight:500;
    letter-spacing:.02em;
}
.article-consultation h2{
    margin:0 0 6px!important;
    font-size:23px!important;
}
.article-consultation p{
    margin:0!important;
    font-size:16px!important;
    line-height:1.55!important;
    color:#5d717b;
}
.article-consultation__action .btn{white-space:nowrap}

.article-share{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
}
.article-share--top{margin-top:18px}
.article-share--bottom{
    margin:26px 0 0;
    padding-top:20px;
    border-top:1px solid #e2e8eb;
}
.article-share__label{
    margin-right:3px;
    color:#6d7f89;
    font-size:13px;
}
.article-share a,
.article-share button{
    min-height:36px;
    padding:7px 11px;
    border:1px solid #d8e2e6;
    border-radius:9px;
    background:#fff;
    color:#395664;
    font:inherit;
    font-size:13px!important;
    font-weight:400!important;
    line-height:1;
    text-decoration:none;
    cursor:pointer;
}
.article-share a:hover,
.article-share button:hover{
    border-color:#afc4ce;
    background:#f7fafb;
}
.article-share__native{font-weight:500!important}
.article-share__status{
    min-width:1px;
    color:#55756e;
    font-size:12px;
}

.article-bottom-cta{
    margin:28px 0 0;
    padding:28px;
    display:grid;
    grid-template-columns:minmax(0,1fr) auto;
    gap:24px;
    align-items:center;
    border-radius:20px;
    background:#203b4b;
    color:#fff;
}
.article-bottom-cta h2{
    margin:0 0 8px!important;
    color:#fff!important;
    font-size:28px!important;
}
.article-bottom-cta p{
    margin:0!important;
    max-width:690px;
    color:rgba(255,255,255,.78);
    font-size:16px!important;
}
.article-bottom-cta__eyebrow{color:#9fd2d0}
.article-bottom-cta__actions{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    justify-content:flex-end;
}
.article-bottom-cta .btn{
    background:#fff;
    color:#203b4b;
    border-color:#fff;
    white-space:nowrap;
}
.article-bottom-cta .btn.secondary{
    background:transparent;
    color:#fff;
    border-color:rgba(255,255,255,.42);
}

@media(max-width:760px){
    .article-consultation{
        grid-template-columns:40px minmax(0,1fr);
        gap:14px;
        padding:19px;
    }
    .article-consultation__icon{width:40px;height:40px}
    .article-consultation__action{
        grid-column:1/-1;
        padding-left:54px;
    }
    .article-share__label{width:100%}
    .article-share a,
    .article-share button{min-height:40px}
    .article-bottom-cta{
        grid-template-columns:1fr;
        gap:18px;
        padding:22px 20px;
    }
    .article-bottom-cta__actions{justify-content:flex-start}
}
@media(max-width:520px){
    .article-consultation{grid-template-columns:1fr}
    .article-consultation__icon{display:none}
    .article-consultation__action{grid-column:auto;padding-left:0}
    .article-consultation__action .btn{width:100%;text-align:center}
    .article-share a,
    .article-share button{flex:1 1 auto;justify-content:center}
    .article-bottom-cta__actions{display:grid;grid-template-columns:1fr}
    .article-bottom-cta .btn{text-align:center}
}


/* ==========================================================================
   v1.5 — SEO-ready explanatory figures
   ========================================================================== */
.article-figure{
    width:100%;
    margin:28px 0 32px;
}
.article-figure img{
    display:block;
    width:100%;
    height:auto;
    border:1px solid #dce5e9;
    border-radius:16px;
    background:#f7fafb;
}
.article-figure--normal{
    max-width:820px;
}
.article-figure--wide{
    max-width:100%;
}
.article-figure figcaption{
    display:flex;
    justify-content:space-between;
    gap:16px;
    margin-top:9px;
    color:#73838c;
    font-size:13px;
    line-height:1.45;
}
.article-figure__caption{max-width:760px}
.article-figure__credit{
    flex:0 0 auto;
    white-space:nowrap;
}
.article-figure__credit a{color:#55737f}
@media(max-width:640px){
    .article-figure{margin:23px 0 27px}
    .article-figure img{border-radius:12px}
    .article-figure figcaption{display:block}
    .article-figure__credit{display:block;margin-top:4px;white-space:normal}
}