/* ---------- AEK Chem · blog katmanı ----------
   site.css'in üzerine biner. Ana sayfanın renk/tipografi
   sistemini kullanır; yalnızca uzun metin bileşenleri ekler. */

/* breadcrumb */
.crumb{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 18px;display:flex;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--petrol)}
.crumb .sep{color:var(--line-2)}

/* yazı başlığı bloğu */
.post-hero{padding:48px 0 34px;border-bottom:1px solid var(--line)}
.post-hero h1{font-size:clamp(30px,4.4vw,46px);max-width:19em;margin-bottom:18px}
.post-hero .lead{margin-bottom:22px;max-width:34em}
.post-meta{font-family:var(--mono);font-size:11.5px;color:var(--muted);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-2)}
.post-meta .cat{font-weight:700;letter-spacing:.08em;color:var(--petrol);background:var(--petrol-soft);border-radius:6px;padding:4px 8px}

/* yazı gövdesi */
.article{padding:52px 0 64px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:56px;align-items:start}
.prose{max-width:40em;font-size:16.5px;line-height:1.72}
.prose > *:first-child{margin-top:0}
.prose h2{font-size:clamp(23px,2.7vw,29px);margin:44px 0 14px;scroll-margin-top:120px}
.prose h3{font-family:var(--disp);font-weight:700;font-size:19px;letter-spacing:-.01em;margin:30px 0 10px;scroll-margin-top:120px}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose li{margin:0 0 9px}
.prose li::marker{color:var(--petrol)}
.prose a{color:var(--petrol);font-weight:500;text-underline-offset:3px}
.prose strong{font-weight:600}
.prose hr{border:0;border-top:1px solid var(--line);margin:38px 0}
.prose .small{font-size:14px;color:var(--muted)}

/* özet kutusu */
.tldr{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--petrol);border-radius:12px;padding:22px 24px;margin:0 0 34px}
.tldr .t{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin:0 0 12px}
.tldr ul{margin:0;padding-left:20px}
.tldr li{font-size:15.5px;margin-bottom:8px}
.tldr li:last-child{margin-bottom:0}

/* tarih / uyarı şeridi */
.callout{background:var(--petrol-soft);border:1px solid #CBDDF6;border-radius:12px;padding:18px 20px;margin:26px 0;font-size:15.5px}
.callout .t{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--petrol);margin:0 0 8px}
.callout p{margin:0}

/* tablo */
.tablewrap{overflow-x:auto;margin:24px 0 28px;border:1px solid var(--line);border-radius:12px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:520px}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:var(--paper);font-weight:700}
tbody tr:last-child td{border-bottom:0}
td .code{font-family:var(--mono);font-size:12px;color:var(--petrol);font-weight:700}

/* adım listesi */
.steps{list-style:none;margin:26px 0 30px;padding:0;display:grid;gap:2px}
.steps li{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--line)}
.steps li:first-child{border-top:0;padding-top:0}
.steps .n{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--petrol);background:var(--petrol-soft);border-radius:6px;padding:4px 8px;flex:0 0 auto}
.steps .txt{font-size:15.5px}
.steps .txt b{display:block;font-family:var(--disp);font-weight:700;font-size:16.5px;margin-bottom:4px}
.steps .txt small{display:block;color:var(--muted);font-size:13.5px;margin-top:4px}

/* SSS */
.faq{margin:28px 0 8px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:16px;display:flex;justify-content:space-between;gap:16px;align-items:baseline}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-family:var(--mono);color:var(--petrol);font-size:18px;flex:0 0 auto}
.faq details[open] summary::after{content:'–'}
.faq .a{padding:0 0 18px;color:var(--muted);font-size:15.5px;max-width:40em}
.faq .a p{margin:0 0 12px}
.faq .a p:last-child{margin:0}

/* "AEK Chem ne yapıyor" kutusu */
.aek-box{background:var(--petrol);color:#fff;border-radius:16px;padding:30px 32px;margin:40px 0 8px}
.aek-box .t{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#9FC2F0;margin:0 0 12px}
.aek-box h3{font-family:var(--disp);font-weight:700;font-size:22px;margin:0 0 12px;color:#fff}
.aek-box p{color:#C7DBF4;font-size:15.5px;margin:0 0 16px;max-width:36em}
.aek-box ul{margin:0 0 20px;padding-left:20px;color:#C7DBF4;font-size:15.5px}
.aek-box li{margin-bottom:7px}
.aek-box li::marker{color:#9FC2F0}
.aek-box .btn.primary{background:#fff;color:var(--petrol)}
.aek-box .btn.primary:hover{background:#E5EEFA}
.aek-box .btn.ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.aek-box .btn.ghost:hover{border-color:#fff}
.aek-box a{color:#fff}

/* kaynakça */
.sources{margin:38px 0 0;padding:22px 24px;background:var(--card);border:1px solid var(--line);border-radius:12px}
.sources .t{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.sources ol{margin:0;padding-left:20px;font-size:14px;color:var(--muted)}
.sources li{margin-bottom:8px;word-break:break-word}
.sources a{color:var(--petrol)}

/* sağ sütun */
.aside{position:sticky;top:124px;display:grid;gap:22px}
.toc{border:1px solid var(--line);border-radius:12px;background:var(--card);padding:18px 20px}
.toc .t{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.toc ol{margin:0;padding-left:18px;font-size:14px}
.toc li{margin-bottom:9px}
.toc a{color:var(--ink);text-decoration:none}
.toc a:hover{color:var(--petrol)}
.aside-cta{border:1px solid var(--line);border-radius:12px;background:var(--petrol-soft);padding:18px 20px}
.aside-cta p{margin:0 0 14px;font-size:14.5px}
.aside-cta .btn{width:100%;justify-content:center;font-size:14px;padding:11px 14px}

/* ilgili yazılar */
.related{border-top:1px solid var(--line);padding:56px 0 72px}
.related h2{font-size:24px;margin-bottom:24px}

/* liste sayfası */
.post-lead{grid-column:1/-1}
.post-lead .cat{margin-bottom:18px}
.post-lead h3{font-size:24px}
.post-lead p{font-size:15px}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:34px}
.pill{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line-2);border-radius:999px;padding:7px 14px;background:var(--card)}

@media(max-width:960px){
  .article-grid{grid-template-columns:1fr;gap:34px}
  .aside{position:static;grid-template-columns:1fr;max-width:40em}
}
@media(max-width:860px){
  .post-hero{padding:36px 0 28px}
  .article{padding:38px 0 48px}
  .prose{font-size:16px}
  .aek-box{padding:24px 22px}
}