/* mert.cz — rehber sayfaları (e-ticaret / web sitesi) ortak stil */
:root{
  --bg:#0d0d0b; --panel:#151512; --ink:#edebe6; --soft:#cfccc5; --muted:#8c8a83; --line:#2a2925;
  --accent:#ff4d2e;
  --sans:"Bricolage Grotesque",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --gut:clamp(16px,4vw,48px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
::selection{background:var(--accent);color:var(--bg)}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase}

.grid{position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:96px 96px;opacity:.3;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 70%)}

header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;
  padding:18px var(--gut);background:rgba(13,13,11,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.mark{font-weight:800;font-size:20px;text-decoration:none;letter-spacing:-.02em}
.mark span{color:var(--accent)}
header nav{display:flex;gap:clamp(14px,3vw,32px)}
header nav a{text-decoration:none;opacity:.75}
header nav a:hover,header nav a[aria-current]{opacity:1;color:var(--accent)}

main{position:relative;z-index:1}
.wrap{max-width:1280px;margin:0 auto;padding:0 var(--gut)}

/* başlık alanı */
.intro{padding:clamp(56px,9vw,120px) 0 clamp(40px,6vw,72px)}
.crumbs{color:var(--muted);display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.intro h1{font-weight:800;font-size:clamp(40px,7.4vw,108px);line-height:.92;letter-spacing:-.045em;max-width:14ch}
.intro h1 em{font-style:normal;color:var(--accent)}
.lede{margin-top:28px;max-width:640px;font-size:clamp(18px,1.7vw,22px);color:var(--soft)}
.meta-row{margin-top:28px;color:var(--muted);display:flex;gap:20px;flex-wrap:wrap}

/* aranan sorular bulutu */
.queries{display:flex;flex-wrap:wrap;gap:8px;margin-top:40px;max-width:980px}
.queries a{font-family:var(--mono);font-size:13px;text-decoration:none;padding:7px 12px;border:1px solid var(--line);
  color:var(--soft);background:var(--panel);transition:border-color .2s,color .2s}
.queries a::before{content:"? ";color:var(--accent)}
.queries a:hover{border-color:var(--accent);color:var(--ink)}

/* gövde: içindekiler + makale */
.body{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(32px,6vw,96px);padding-bottom:clamp(64px,10vw,140px);
  border-top:1px solid var(--line);padding-top:clamp(40px,6vw,72px)}
.toc{position:sticky;top:96px;align-self:start}
.toc p{color:var(--muted);margin-bottom:14px}
.toc ol{list-style:none;counter-reset:t;border-left:1px solid var(--line)}
.toc li{counter-increment:t}
.toc a{display:block;padding:6px 0 6px 16px;margin-left:-1px;border-left:1px solid transparent;text-decoration:none;color:var(--muted);font-size:15px;line-height:1.35}
.toc a::before{content:counter(t,decimal-leading-zero) "  ";font-family:var(--mono);font-size:11px;color:#55534d}
.toc a:hover,.toc a.on{color:var(--ink);border-left-color:var(--accent)}

article{max-width:780px;min-width:0}
article section{padding-bottom:clamp(48px,6vw,80px)}
article section+section{border-top:1px solid var(--line);padding-top:clamp(40px,5vw,64px)}
.kicker{color:var(--accent);margin-bottom:14px;display:block}
article h2{font-size:clamp(30px,3.6vw,48px);line-height:1.02;letter-spacing:-.035em;font-weight:700;margin-bottom:20px}
article h3{font-size:clamp(20px,1.8vw,24px);letter-spacing:-.02em;font-weight:600;line-height:1.2;margin:32px 0 10px}
article p{color:var(--soft);margin-top:14px}
article p:first-of-type{margin-top:0}
article strong{color:var(--ink);font-weight:600}
article ul.dash{list-style:none;margin-top:16px}
article ul.dash li{position:relative;padding:10px 0 10px 28px;border-bottom:1px solid var(--line);color:var(--soft)}
article ul.dash li::before{content:"—";position:absolute;left:0;color:var(--accent)}
article ul.dash li b{color:var(--ink);font-weight:600}
article a.inl{color:var(--ink);text-decoration-color:var(--accent);text-underline-offset:3px}

/* kart ızgarası (site türleri) */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:28px}
.card{background:var(--bg);padding:24px 22px}
.card .mono{color:var(--accent)}
.card h3{margin:10px 0 8px;font-size:21px}
.card p{margin-top:0;font-size:15.5px;color:var(--muted)}
.card p b{color:var(--soft);font-weight:500}

/* karşılaştırma tablosu */
.table{overflow-x:auto;margin-top:24px;border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:15px}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:500;background:var(--panel)}
td{color:var(--soft)}
td:first-child{color:var(--ink);font-weight:600;white-space:nowrap}
tr:last-child td{border-bottom:0}

/* adımlar */
.steps{list-style:none;counter-reset:s;margin-top:24px}
.steps li{counter-increment:s;display:grid;grid-template-columns:56px 1fr;gap:8px;padding:18px 0;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);color:var(--accent);font-size:14px;padding-top:3px}
.steps b{display:block;color:var(--ink);font-weight:600;font-size:19px}
.steps span{color:var(--muted)}

/* örnek iş */
.case{display:grid;grid-template-columns:1.1fr 1fr;gap:0;border:1px solid var(--line);margin-top:28px;text-decoration:none;transition:border-color .3s}
.case:hover{border-color:var(--accent)}
.case img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;display:block}
.case div{padding:24px;display:flex;flex-direction:column;justify-content:center;gap:8px;background:var(--panel)}
.case .mono{color:var(--accent)}
.case h3{margin:0}
.case p{margin:0;font-size:15.5px;color:var(--muted)}

/* SSS */
.faq{margin-top:20px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative;font-size:19px;font-weight:600;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:16px;font-family:var(--mono);font-size:22px;color:var(--accent);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 22px;max-width:680px}

/* çağrı */
.cta{border-top:1px solid var(--line);padding:clamp(72px,11vw,150px) 0}
.cta h2{font-size:clamp(44px,8vw,120px);font-weight:800;line-height:.92;letter-spacing:-.05em}
.cta h2 em{font-style:normal;color:var(--accent)}
.cta p{color:var(--soft);max-width:560px;margin-top:24px;font-size:clamp(17px,1.6vw,20px)}
.mail{display:inline-flex;align-items:center;gap:14px;margin-top:36px;font-size:clamp(20px,2.6vw,34px);font-weight:600;
  text-decoration:none;border-bottom:2px solid var(--accent);padding-bottom:6px}
.mail:hover{color:var(--accent)}
.other{display:inline-block;margin-left:clamp(0px,3vw,40px);margin-top:36px;color:var(--muted);text-decoration:none}
.other:hover{color:var(--ink)}

footer{position:relative;z-index:1;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px var(--gut);border-top:1px solid var(--line);color:var(--muted)}
footer a{text-decoration:none}
footer a:hover{color:var(--ink)}

@media (max-width:900px){
  .body{grid-template-columns:minmax(0,1fr)}
  .toc{position:static}
  .toc ol{columns:2;column-gap:16px}
  .toc li{break-inside:avoid}
}
@media (max-width:640px){
  header nav a.hide-sm{display:none}
  .cards{grid-template-columns:1fr}
  .case{grid-template-columns:1fr}
  .toc ol{columns:1}
  .other{display:block;margin-left:0;margin-top:20px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ilgili yazılar */
.related{border-top:1px solid var(--line);padding:clamp(40px,6vw,72px) 0}
.related>p{color:var(--muted);margin-bottom:20px}
.rels{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.rel{background:var(--bg);padding:22px;text-decoration:none;display:flex;flex-direction:column;gap:10px;transition:background .2s}
.rel .mono{color:var(--accent)}
.rel b{font-size:19px;font-weight:600;letter-spacing:-.01em;line-height:1.25}
.rel:hover{background:var(--panel)}

/* blog listesi */
.label{display:flex;gap:12px;align-items:center;color:var(--muted);margin-bottom:24px}
.label b{color:var(--accent);font-weight:500}
.label::after{content:"";flex:1;height:1px;background:var(--line)}
.group{padding-bottom:clamp(48px,7vw,96px)}
.posts{display:grid;grid-template-columns:repeat(3,1fr);padding:1px 0 0 1px}
.post{background:var(--bg);border:1px solid var(--line);margin:-1px 0 0 -1px;padding:26px 24px;text-decoration:none;display:flex;flex-direction:column;gap:10px;transition:background .2s}
.post.pillar{grid-column:span 2}
.post .mono{color:var(--accent)}
.post h3{font-size:clamp(21px,2vw,26px);font-weight:600;letter-spacing:-.02em;line-height:1.15}
.post p{color:var(--muted);font-size:15.5px}
.post:hover{background:var(--panel)}
@media (max-width:900px){.posts{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.posts{grid-template-columns:1fr}.post.pillar{grid-column:auto}}