/* Sigma Analitik — tema */
:root{
  --navy:#0b2545;
  --navy-700:#123a66;
  --navy-600:#14406f;
  --ink:#16202b;
  --body:#41505f;
  --muted:#6b7c8d;
  --line:#e3e9ef;
  --bg:#ffffff;
  --bg-soft:#f5f8fb;
  --accent:#0c5a92;        /* kurumsal logo mavisi */
  --accent-dark:#094a79;
  --accent-soft:#e8f1f8;
  --warn:#c8531f;
  --radius:10px;
  --shadow:0 1px 2px rgba(11,37,69,.06),0 8px 24px rgba(11,37,69,.07);
  --shadow-sm:0 1px 3px rgba(11,37,69,.08);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--body);
  font:16px/1.65 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);line-height:1.25;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,1.2rem + 1.8vw,2.6rem)}
h2{font-size:clamp(1.35rem,1.1rem + 1vw,1.9rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.center{text-align:center}
.mt0{margin-top:0}.mb0{margin-bottom:0}

/* ---------- üst bar ---------- */
.topbar{background:var(--navy);color:#c7d7e8;font-size:.83rem}
.topbar a{color:#c7d7e8}
.topbar .wrap{display:flex;gap:20px;align-items:center;justify-content:space-between;
  min-height:40px;flex-wrap:wrap}
.topbar .tb-left{display:flex;gap:18px;flex-wrap:wrap}
.topbar .tb-right{display:flex;gap:16px}
.topbar strong{color:#fff}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
/* dikkat: kısayol "padding" kullanılırsa .wrap'ın yan boşluğu silinir, logo kenara yapışır */
.header-main{display:flex;align-items:center;gap:28px;padding-top:14px;padding-bottom:14px}
.logo{display:flex;align-items:center;text-decoration:none;flex:none}
.logo:hover{text-decoration:none}
.logo img{height:34px;width:auto;flex:none}
.searchbox{flex:1;max-width:460px;position:relative}
.searchbox input{
  width:100%;padding:11px 44px 11px 15px;border:1px solid var(--line);border-radius:var(--radius);
  font-size:.94rem;background:var(--bg-soft);color:var(--ink)}
.searchbox input:focus{outline:2px solid var(--accent-soft);border-color:var(--accent);background:#fff}
.searchbox button{
  position:absolute;right:5px;top:5px;bottom:5px;width:36px;border:0;border-radius:8px;
  background:var(--accent);color:#fff;cursor:pointer;display:grid;place-items:center}
.searchbox button:hover{background:var(--accent-dark)}
.header-cta{margin-left:auto;display:flex;gap:10px;align-items:center}

/* ---------- ana menü ---------- */
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;
  padding:9px 12px;cursor:pointer;color:var(--navy)}
.mainnav{border-top:1px solid var(--line);background:#fff}
.mainnav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap}
.mainnav > .wrap > ul > li{position:relative}
.mainnav > .wrap > ul > li > a{
  display:block;padding:14px 16px;color:var(--navy);font-weight:600;font-size:.94rem}
.mainnav > .wrap > ul > li > a:hover,.mainnav li.active > a{color:var(--accent-dark);text-decoration:none}
.mainnav > .wrap > ul > li:first-child > a{padding-left:0}
/* not: .mainnav ul{display:flex} kuralını ezebilmek için aynı özgüllük seviyesi kullanılır */
.mainnav ul.dropdown{
  position:absolute;left:0;top:100%;min-width:240px;background:#fff;border:1px solid var(--line);
  border-radius:0;box-shadow:var(--shadow);padding:8px 0;display:none;flex-direction:column;z-index:60}
/* açılır menü yalnızca gerçek fare/imleç olan cihazlarda hover ile açılır;
   dokunmatik cihazlarda tıklama (sub-toggle) ile açılır */
@media (hover:hover) and (pointer:fine){
  .mainnav .has-sub:hover > ul.dropdown,
  .mainnav .has-sub:focus-within > ul.dropdown{display:flex}
}
.dropdown li{position:relative}
.dropdown a{display:block;padding:9px 16px;border-radius:0;color:var(--ink);font-size:.92rem;
  white-space:nowrap}
.dropdown a:hover{background:var(--accent-soft);color:var(--accent-dark);text-decoration:none}
.mainnav ul.dropdown ul.dropdown{left:100%;top:-8px}
.dropdown .has-sub > a::after{content:"›";float:right;color:var(--muted)}
.sub-toggle{display:none}   /* masaüstünde gizli, mobilde açılır */

/* ---------- butonlar ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:var(--radius);
  font-weight:600;font-size:.94rem;border:1px solid transparent;cursor:pointer;transition:.15s}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:#123a66;color:#fff}
.btn-ghost{border-color:var(--line);color:var(--navy);background:#fff}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-dark)}
.btn-wa{background:#25d366;color:#fff}
.btn-wa:hover{background:#1eb257;color:#fff}
.btn-sm{padding:8px 14px;font-size:.86rem}
.btn-block{width:100%;justify-content:center}
/* koyu zeminlerde marka mavisi butonun kontrastı düşük kalıyor: beyaz kullanılır */
.hero .btn-primary,.cta-strip .btn-primary,.side-cta .btn-primary{background:#fff;color:var(--navy)}
.hero .btn-primary:hover,.cta-strip .btn-primary:hover,.side-cta .btn-primary:hover{
  background:var(--accent-soft);color:var(--accent-dark)}

/* ---------- hero ---------- */
.hero{background:linear-gradient(150deg,#0b2545 0%,#123a66 52%,#0c5a92 100%);color:#e8f1f8;
  padding:64px 0 72px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 78% 25%,rgba(12,90,146,.55),transparent 62%);pointer-events:none}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{color:#fff;margin-bottom:.4em}
.hero p.lead{font-size:1.09rem;color:#c9dcec;max-width:56ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-badges{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-badges div{display:flex;flex-direction:column}
.hero-badges b{font-size:1.5rem;color:#fff}
.hero-badges span{font-size:.82rem;color:#a8c4dc}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:26px;backdrop-filter:blur(6px)}
.hero-card h3{color:#fff;font-size:1.02rem;margin-bottom:14px}
.hero-card ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.hero-card li{display:flex;gap:10px;align-items:flex-start;font-size:.93rem;color:#d5e5f2}
.hero-card li::before{content:"";width:7px;height:7px;border-radius:50%;background:#63b3e4;margin-top:8px;flex:none}

/* ---------- bölümler ---------- */
.section{padding:56px 0}
.section-soft{background:var(--bg-soft)}
.section-head{margin-bottom:30px}
.section-head p{color:var(--muted);margin-bottom:0}
.eyebrow{display:inline-block;font-size:.76rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent-dark);font-weight:700;margin-bottom:.55em}

/* ---------- grid kartlar ---------- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
/* en fazla 3 sütun; son satırda az öge kalırsa kartlar genişleyip satırı doldurur.
   (grid + auto-fit son satırı doldurmaz; bu yüzden flex kullanılıyor) */
.grid-auto3{display:flex;flex-wrap:wrap;gap:20px}
.grid-auto3 > *{flex:1 1 300px;min-width:0}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  transition:.18s;display:flex;flex-direction:column}
.card:hover{border-color:#c7d8e6;box-shadow:var(--shadow);transform:translateY(-2px)}
.card h3{margin-bottom:.4em;font-size:1.05rem}
.card p{font-size:.92rem;color:var(--body);margin-bottom:1em}
.card .card-link{margin-top:auto;font-weight:600;font-size:.9rem;color:var(--accent-dark)}
.card-icon{width:44px;height:44px;border-radius:10px;background:var(--accent-soft);color:var(--accent-dark);
  display:grid;place-items:center;margin-bottom:16px}

/* ürün kartı */
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.18s}
.pcard:hover{border-color:#bcd4e4;box-shadow:var(--shadow);transform:translateY(-2px)}
/* küçük görseller 600x600 kare üretildiği için kart alanını boşluksuz doldurur */
.pcard .ph{display:block;aspect-ratio:1/1;background:var(--bg-soft);overflow:hidden;
  border-bottom:1px solid var(--line)}
.pcard .ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s}
.pcard:hover .ph img{transform:scale(1.04)}
.pcard .pb{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1}
.pcard .code{font-size:.76rem;font-weight:700;letter-spacing:.06em;color:var(--accent-dark);
  text-transform:uppercase;margin-bottom:5px}
.pcard .pt{font-size:.9rem;color:var(--ink);font-weight:600;line-height:1.4;margin:0 0 12px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.pcard .pf{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}
.pcard .pf .ask{font-size:.8rem;color:var(--muted)}

/* cihaz kartı */
.icard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;transition:.18s}
.icard:hover{border-color:#bcd4e4;box-shadow:var(--shadow);transform:translateY(-2px)}
.icard .tag{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  font-weight:700;margin-bottom:8px}
.icard h3{font-size:1.18rem;color:var(--navy);margin-bottom:.35em}
.icard p{font-size:.92rem;margin-bottom:1.1em}

/* ---------- breadcrumb ---------- */
.crumbs{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:12px 0;font-size:.85rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;color:var(--muted)}
.crumbs li::after{content:"/";margin-left:8px;color:#c3cfda}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--muted)}
.crumbs li:last-child{color:var(--ink);font-weight:600}

/* ---------- sayfa yerleşimi ---------- */
.page{padding:40px 0 64px}
.page-head{margin-bottom:32px}
.page-head h1{margin-bottom:.3em}
.page-head p{color:var(--muted);margin-bottom:0}
/* varsayılan: yan sütun solda (kategori/cihaz sayfaları)
   .rev: içerik solda, yan sütun sağda (hakkımızda/servis/iletişim/teklif) */
.layout{display:grid;grid-template-columns:292px minmax(0,1fr);gap:36px;align-items:start}
.layout.rev{grid-template-columns:minmax(0,1fr) 292px}
.sidebar{position:sticky;top:110px}
.side-box{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:20px;background:#fff}
.side-box h4{margin:0;padding:14px 16px;background:var(--bg-soft);border-bottom:1px solid var(--line);
  font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;color:var(--navy)}
.side-box ul{list-style:none;margin:0;padding:8px}
.side-box a{display:flex;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:7px;
  font-size:.87rem;color:var(--ink);white-space:nowrap}
.side-box a:hover{background:var(--accent-soft);color:var(--accent-dark);text-decoration:none}
.side-box a.on{background:var(--accent);color:#fff}
.side-box a span{color:var(--muted);font-size:.8rem}
.side-box a.on span{color:#d6f1f9}
.side-cta{background:var(--navy);color:#cfe0f0;border-radius:var(--radius);padding:20px}
.side-cta h4{color:#fff;font-size:1rem;margin-bottom:.5em}
.side-cta p{font-size:.88rem;margin-bottom:1em}

/* ---------- içerik tipografisi ---------- */
/* metin sütunu, içinde bulunduğu alanı doldurur; yan sütunlu sayfalarda
   zaten grid kolonu sınırlıyor */
.prose{max-width:none}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.25em;margin:0 0 1.2em}
.prose li{margin-bottom:.45em}
.prose table{width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:.93rem}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:var(--bg-soft);color:var(--navy)}

/* ---------- ürün detay ---------- */
.pdetail{display:grid;grid-template-columns:minmax(0,480px) 1fr;gap:44px;align-items:start}
.pdetail .gallery{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
.spec{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:.94rem}
.spec th,.spec td{border-bottom:1px solid var(--line);padding:11px 2px;text-align:left;vertical-align:top}
.spec th{width:42%;color:var(--muted);font-weight:600}
.quote-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.quote-box h3{margin-bottom:.4em;font-size:1.05rem}
.badge{display:inline-block;background:var(--accent-soft);color:var(--accent-dark);border-radius:20px;
  padding:4px 12px;font-size:.78rem;font-weight:700;letter-spacing:.04em}

/* ---------- form ---------- */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:.86rem;font-weight:600;color:var(--ink)}
.field input,.field textarea,.field select{
  padding:11px 13px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.94rem;
  background:#fff;color:var(--ink)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:2px solid var(--accent-soft);border-color:var(--accent)}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:.82rem;color:var(--muted)}
.alert{padding:14px 18px;border-radius:var(--radius);margin-bottom:22px;font-size:.94rem}
.alert-ok{background:#e8f7ee;border:1px solid #b7e4c8;color:#1c6b3c}
.alert-err{background:#fdecea;border:1px solid #f5c2bd;color:#9c2c1e}

/* ---------- sayfalama ---------- */
.pager{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:36px}
.pager a,.pager span{padding:8px 13px;border:1px solid var(--line);border-radius:8px;font-size:.89rem;color:var(--ink)}
.pager .cur{background:var(--navy);color:#fff;border-color:var(--navy)}
.pager a:hover{border-color:var(--accent);color:var(--accent-dark);text-decoration:none}

/* ---------- şerit CTA ---------- */
.cta-strip{background:linear-gradient(120deg,#0b2545,#0c5a92);color:#dceaf5;border-radius:14px;
  padding:36px 40px;display:flex;gap:28px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-strip h2{color:#fff;margin-bottom:.3em}
.cta-strip p{margin-bottom:0;color:#bdd5e8;max-width:60ch}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#a9c2d8;margin-top:0;padding:52px 0 0;font-size:.92rem}
.site-footer a{color:#a9c2d8}
.site-footer a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:38px}
.site-footer h4{color:#fff;font-size:.86rem;letter-spacing:.11em;text-transform:uppercase;margin-bottom:1.1em}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.foot-brand img{height:34px;width:auto;margin-bottom:16px}
.foot-brand p{color:#94b0c9;font-size:.9rem}
.foot-contact li{display:flex;gap:10px;align-items:flex-start}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#89a5be}

/* whatsapp float */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:80;background:#25d366;color:#fff;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  box-shadow:0 6px 20px rgba(37,211,102,.4)}
.wa-float:hover{background:#1eb257}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .hero .wrap{grid-template-columns:1fr;gap:34px}
  .layout{grid-template-columns:1fr}
  /* tek sütuna inince yan menü içeriğin altına alınır */
  .layout{display:flex;flex-direction:column}
  .sidebar{position:static;order:2}
  .pdetail{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .grid-4{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:860px){
  .nav-toggle{display:block}
  .header-main{gap:14px;flex-wrap:wrap}
  .searchbox{order:3;max-width:none;flex-basis:100%}
  .header-cta .btn-navy{display:none}
  .mainnav{display:none;border-top:1px solid var(--line)}
  .mainnav.open{display:block}
  .mainnav ul{flex-direction:column}
  .mainnav > .wrap > ul > li > a{padding:12px 0;border-bottom:1px solid var(--line)}
  /* mobilde alt menüler katlanır; ok düğmesiyle açılır */
  .mainnav li.has-sub{position:relative}
  .mainnav ul.dropdown{position:static;display:none;border:0;box-shadow:none;
    padding:0 0 8px 14px;min-width:0}
  /* dar ekranda hover/odak ile açılmasın (özgüllük hover kuralıyla eşit olmalı) */
  .mainnav .has-sub:hover > ul.dropdown,
  .mainnav .has-sub:focus-within > ul.dropdown{display:none}
  .mainnav li.has-sub.open > ul.dropdown{display:flex}
  .mainnav ul.dropdown ul.dropdown{padding-left:14px;left:auto;top:auto}
  .sub-toggle{display:grid;place-items:center;position:absolute;right:0;top:0;width:46px;height:46px;
    background:none;border:0;padding:0;color:var(--muted);cursor:pointer}
  .sub-toggle svg{transition:transform .18s}
  .mainnav li.open > .sub-toggle svg{transform:rotate(90deg)}
  .dropdown a{padding-right:52px}
  /* mobilde ok yerine sub-toggle düğmesi kullanılır (özgüllük masaüstü kuralını ezmeli) */
  .mainnav .dropdown .has-sub > a::after{content:""}
}
@media(max-width:720px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  /* dar ekranda footer tek sütun: marka metni sıkışıp kelime kelime kırılmasın */
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .form-grid{grid-template-columns:1fr}
  .cta-strip{padding:26px 22px}
  .section{padding:42px 0}
  .topbar .tb-left span.hide-sm{display:none}
}
@media(max-width:460px){
  /* metin kartları tek sütun, ürün kartları telefonda da 2 sütun kalır */
  .grid-3,.grid-auto3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr);gap:12px}
  .pcard .pt{font-size:.84rem;-webkit-line-clamp:2}
  .pcard .pb{padding:12px}
  .pcard .pf{flex-direction:column;align-items:stretch;gap:8px}
  .pcard .pf .ask{font-size:.74rem}
  .pcard .pf .btn{justify-content:center}
  .hero-badges{gap:18px}
}

/* ---------- uygulama rehberi ---------- */
.answer-box{background:var(--accent-soft);border-left:4px solid var(--accent);
  border-radius:0 var(--radius) var(--radius) 0;padding:18px 22px;margin:0 0 30px;max-width:80ch}
.answer-box p{margin:0;font-size:1.05rem;color:var(--ink);line-height:1.6}
.note-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 18px;font-size:.93rem}
.table-wrap{overflow-x:auto;margin:0 0 1.4em}
.table-wrap table{margin:0;min-width:520px}
.prose h2{scroll-margin-top:120px}