/* Блог «Полезные статьи» — статические SEO-страницы в бренд-эстетике лендинга */
:root{
  --bg:#FFFFFF; --bg-2:#F6F7F9; --bg-3:#EEF0F3;
  --gold:#B97A12; --gold-light:#E8A020; --gold-soft:rgba(232,160,32,0.14);
  --gold-line:rgba(26,46,74,0.14); --teal:#0D7377; --teal-light:#0F8F8C;
  --white:#14161A; --muted:rgba(20,22,26,0.58); --muted-2:rgba(20,22,26,0.72); --muted-3:rgba(20,22,26,0.85);
  --card-bg:#F6F7F9; --card-border:rgba(26,46,74,0.12); --card-border-hover:rgba(232,160,32,0.45);
  --navy:#1A2E4A;
  --maxw:720px; --font-head:'Montserrat',system-ui,sans-serif; --font-body:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--white);font-family:var(--font-body);
  font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--gold);text-decoration:none}
a:hover{color:var(--gold-light)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.wrap.wide{max-width:1120px}

/* Шапка */
.top{border-bottom:1px solid var(--gold-line);padding:22px 0;position:sticky;top:0;
  background:rgba(255,255,255,0.9);backdrop-filter:blur(8px);z-index:10}
.top .wrap{display:flex;align-items:center;justify-content:space-between}
.brand{font-family:var(--font-head);font-weight:800;letter-spacing:.02em;color:var(--white)}
.brand span{color:var(--gold)}
.top nav a{color:var(--muted);font-size:15px;margin-left:22px}
.top nav a:hover{color:var(--white)}

/* Заголовок раздела */
.hero{padding:64px 0 28px;text-align:center}
.hero h1{font-family:var(--font-head);font-weight:800;font-size:clamp(30px,6vw,46px);
  margin:0 0 12px;line-height:1.1}
.hero p{color:var(--muted);max-width:540px;margin:0 auto;font-size:17px}

/* Рубрики-фильтр */
.rubrics{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:26px 0 40px}
.rubrics a{border:1px solid var(--gold-line);border-radius:999px;padding:7px 16px;
  font-size:14px;color:var(--muted)}
.rubrics a:hover,.rubrics a.active{color:var(--bg);background:var(--gold);border-color:var(--gold)}

/* Список статей — сетка 3 в ряд */
.list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding-bottom:80px}
.card{display:flex;flex-direction:column;background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:16px;overflow:hidden;transition:.2s;height:100%}
.card:hover{border-color:var(--card-border-hover);transform:translateY(-3px)}
.card .thumb{aspect-ratio:1200/630;width:100%;object-fit:cover;background:#FFFFFF;display:block;border-bottom:1px solid var(--card-border)}
.card .body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-block;align-self:flex-start;font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--teal-light);border:1px solid rgba(13,115,119,0.4);border-radius:999px;
  padding:3px 10px;margin-bottom:10px}
.card h2{font-family:var(--font-head);font-weight:700;font-size:19px;margin:0 0 8px;color:var(--white);line-height:1.28}
.card .cmeta{color:var(--muted);font-size:13px;margin:0 0 10px}
.card p{margin:0 0 14px;color:var(--muted);font-size:15px;line-height:1.55}
.card .more{color:var(--gold);font-size:14px;margin-top:auto;display:inline-block}

@media (max-width:900px){.list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.list{grid-template-columns:1fr}}

/* Статья */
article.post{padding:48px 0 80px}
article.post .tag{margin-bottom:16px}
article.post h1{font-family:var(--font-head);font-weight:800;font-size:clamp(28px,5.5vw,40px);
  line-height:1.15;margin:0 0 14px}
article.post .meta{color:var(--muted);font-size:14px;margin-bottom:24px;border-bottom:1px solid var(--gold-line);padding-bottom:20px}
article.post .hero{width:100%;border-radius:14px;border:1px solid var(--card-border);margin:0 0 30px;display:block}
article.post h2{font-family:var(--font-head);font-weight:700;font-size:24px;margin:40px 0 12px;color:var(--gold-light)}
article.post p{margin:0 0 20px}
article.post strong{color:var(--white)}
article.post .cta{background:var(--card-bg);border:1px solid var(--card-border);border-left:3px solid var(--gold);
  border-radius:12px;padding:22px 24px;margin:36px 0}
article.post .cta p{margin:0}
/* Панель с готовым промптом: рамка-сообщение, как в каруселях */
article.post .prompt{background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:18px 18px 18px 6px;padding:22px 24px;margin:24px 0;font-size:.94em;line-height:1.5}
article.post .prompt p{margin:0 0 14px}
article.post .prompt p:last-child{margin:0}
.backlink{display:inline-block;margin:0 0 8px;color:var(--muted);font-size:15px}
.backlink:hover{color:var(--gold)}

/* Подвал */
.foot{border-top:1px solid var(--gold-line);padding:34px 0;color:var(--muted);font-size:14px;text-align:center}

@media (max-width:560px){body{font-size:17px}.card{padding:20px 20px}}

/* Product CTA and related articles at the end of a post */
article.post .product{background:var(--card-bg);border:1px solid var(--gold);border-radius:14px;
  padding:24px 26px;margin:40px 0 8px}
article.post .product-kicker{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-bottom:6px}
article.post .product-title{font-family:var(--font-head);font-weight:700;font-size:21px;color:var(--white);margin-bottom:8px}
article.post .product p{margin:0 0 16px;color:var(--muted)}
article.post .product-btn{display:inline-block;background:var(--gold);color:#fff;border-radius:999px;
  padding:10px 20px;font-weight:600;font-size:15px}
article.post .product-btn:hover{opacity:.9}
article.post .related{margin:36px 0 24px}
article.post .related h2{margin:0 0 16px}
.rel-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.rel-card{display:flex;flex-direction:column;background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:12px;overflow:hidden;color:var(--white);font-size:15px;line-height:1.35;transition:.2s}
.rel-card:hover{border-color:var(--card-border-hover);transform:translateY(-2px)}
.rel-card img{width:100%;aspect-ratio:1200/630;object-fit:cover;display:block;border-bottom:1px solid var(--card-border)}
.rel-card span{padding:12px 14px}
@media (max-width:600px){.rel-list{grid-template-columns:1fr}}
/* Reading time and date line under the byline */
article.post .art-info{color:var(--muted);font-size:13px;margin:-14px 0 24px}
/* Author box */
article.post .author-box{display:flex;gap:16px;align-items:flex-start;border-top:1px solid var(--card-border);
  border-bottom:1px solid var(--card-border);padding:20px 0;margin:28px 0 8px}
article.post .author-box img{width:64px;height:64px;border-radius:50%;object-fit:cover;flex:none}
article.post .author-name{font-family:var(--font-head);font-weight:700;color:var(--white);margin-bottom:4px}
article.post .author-box p{margin:0 0 6px;color:var(--muted);font-size:15px}
article.post .author-box a{color:var(--gold);font-size:14px}
/* Long-read template (30.09): short answer, glossary, checklist, FAQ, sources */
article.post .tldr{background:var(--gold-soft);border-left:3px solid var(--gold);border-radius:12px;padding:18px 22px;margin:8px 0 30px}
article.post .tldr b{display:block;font-family:var(--font-head);color:var(--white);margin-bottom:6px}
article.post .tldr p{margin:0}
article.post .glossary{background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;padding:18px 22px;margin:24px 0}
article.post .glossary dt{font-weight:600;color:var(--white);margin-top:10px}
article.post .glossary dt:first-child{margin-top:0}
article.post .glossary dd{margin:2px 0 0;color:var(--muted-2)}
article.post .warn{border:1px solid rgba(200,60,40,.35);background:rgba(200,60,40,.06);border-radius:12px;padding:16px 20px;margin:24px 0}
article.post .checklist{list-style:none;padding:0;margin:16px 0 24px}
article.post .checklist li{padding:8px 0 8px 30px;position:relative;border-bottom:1px solid var(--card-border)}
article.post .checklist li:before{content:"✓";position:absolute;left:4px;color:var(--gold);font-weight:700}
article.post table{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:.95em}
article.post th,article.post td{border:1px solid var(--card-border);padding:10px 12px;text-align:left;vertical-align:top}
article.post th{background:var(--card-bg);color:var(--white)}
article.post details.faq{border:1px solid var(--card-border);border-radius:10px;padding:12px 16px;margin:10px 0}
article.post details.faq summary{cursor:pointer;font-weight:600;color:var(--white)}
article.post details.faq p{margin:10px 0 0}
article.post .sources{font-size:.9em;color:var(--muted-2)}
article.post .sources li{margin:4px 0}
@media (max-width:600px){article.post table{display:block;overflow-x:auto}}