/* ===== seraisitmasistemleri.com.tr — Kurumsal Tasarım ===== */
:root{
  --navy-900:#0c2437; --navy-800:#103049; --navy-700:#16405f; --navy-600:#1e527a;
  --navy-100:#e3edf5; --navy-50:#f2f7fb;
  --acc-600:#d97706; --acc-500:#f59e0b; --acc-100:#fef3e2;
  --green-700:#15803d;
  --ink:#1e293b; --muted:#5b6b7c; --line:#dde5ec; --bg:#ffffff; --bg-soft:#f6f9fb;
  --radius:10px; --shadow:0 12px 34px rgba(12,36,55,.10); --shadow-sm:0 3px 12px rgba(12,36,55,.07);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy-600);text-decoration:none}
a:hover{color:var(--acc-600)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
h1,h2,h3,h4{line-height:1.25;color:var(--navy-900);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.65rem,3.6vw,2.45rem)}
h2{font-size:clamp(1.35rem,2.8vw,1.9rem)}
h3{font-size:1.12rem}
p{margin:.6em 0}
ul{padding-left:1.2em}
li{margin:.3em 0}
svg.icon{width:1em;height:1em;fill:currentColor;vertical-align:-.12em}

/* ---- Üst bar ---- */
.topbar{background:var(--navy-900);color:#c8d9e6;font-size:.82rem;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.topbar a{color:#fff;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.topbar a:hover{color:var(--acc-500)}

/* ---- Header ---- */
header.site{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px}
.logo{display:flex;align-items:center;gap:11px;color:var(--navy-900)}
.logo:hover{color:var(--navy-900)}
.logo .mark{width:42px;height:42px;border-radius:8px;background:var(--navy-800);display:grid;place-items:center;flex:none}
.logo .mark svg{width:24px;height:24px;fill:var(--acc-500)}
.logo .name{font-weight:800;font-size:1.06rem;letter-spacing:-.02em;line-height:1.2}
.logo .name small{display:block;font-size:.68rem;font-weight:500;color:var(--muted);letter-spacing:.03em}
nav.main{display:flex;gap:2px;align-items:center}
nav.main a{padding:9px 14px;border-radius:6px;color:var(--ink);font-weight:600;font-size:.93rem}
nav.main a:hover,nav.main a.active{background:var(--navy-50);color:var(--navy-800)}
.call-btn{display:inline-flex;align-items:center;gap:8px;background:var(--acc-500);color:#fff!important;font-weight:700;padding:11px 20px;border-radius:6px;white-space:nowrap;font-size:.95rem}
.call-btn:hover{background:var(--acc-600)}
.call-btn svg{width:17px;height:17px;fill:#fff}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 12px;font-size:1.15rem;cursor:pointer;color:var(--navy-900)}

/* ---- SPA geçiş ---- */
#app{transition:opacity .25s ease,transform .25s ease;min-height:60vh}
#app.page-leave{opacity:0;transform:translateY(12px)}
#app.page-enter{opacity:0;transform:translateY(-8px)}

/* ---- Hero ---- */
.hero{background:linear-gradient(150deg,var(--navy-900) 0%,var(--navy-800) 60%,var(--navy-700) 100%);color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--acc-500)}
.hero::after{content:"";position:absolute;right:-160px;top:-160px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.16),transparent 65%)}
.hero .container{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;padding-top:70px;padding-bottom:70px;position:relative;z-index:1}
.hero h1{color:#fff}
.hero h1 .accent{color:var(--acc-500)}
.hero p.lead{font-size:1.08rem;color:#c8d9e6;max-width:58ch}
.hero .badge{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:6px 14px;border-radius:4px;font-size:.78rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:16px;color:#e8b45a}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:6px;font-weight:700;border:none;cursor:pointer;font-size:.98rem}
.btn svg{width:16px;height:16px;fill:currentColor}
.btn-primary{background:var(--acc-500);color:#fff}
.btn-primary:hover{background:var(--acc-600);color:#fff}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.45)}
.btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}
.btn-wa{background:#22a556;color:#fff}
.btn-wa:hover{background:#1c8d47;color:#fff}
.hero figure{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:26px}
.hero figure img{border-radius:8px;max-height:360px;width:auto;margin:0 auto}
.hero figcaption{text-align:center;font-size:.82rem;color:#a9c2d4;margin-top:12px;letter-spacing:.02em}
.trust{display:flex;gap:0;margin-top:30px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px}
.trust div{flex:1;padding:0 18px;border-left:1px solid rgba(255,255,255,.14)}
.trust div:first-child{padding-left:0;border-left:none}
.trust div strong{display:block;font-size:1.3rem;color:var(--acc-500);font-weight:800}
.trust div span{font-size:.8rem;color:#a9c2d4}

/* ---- Breadcrumb ---- */
.crumbs{background:var(--bg-soft);border-bottom:1px solid var(--line);font-size:.83rem;padding:10px 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumbs li{margin:0;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px;color:#9aa9b8}

/* ---- Bölümler ---- */
section{padding:60px 0}
section.soft{background:var(--bg-soft)}
.sec-head{max-width:720px;margin:0 auto 40px;text-align:center}
.sec-head.left{text-align:left;margin-left:0}
.sec-head .kicker{display:inline-block;color:var(--acc-600);font-weight:700;text-transform:uppercase;font-size:.74rem;letter-spacing:.14em;border-bottom:2px solid var(--acc-500);padding-bottom:4px;margin-bottom:10px}
.sec-head p{color:var(--muted)}

/* ---- Ürün kartları ---- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c3d2de}
.card .thumb{background:#fff;padding:20px;display:grid;place-items:center;min-height:225px;border-bottom:1px solid var(--line)}
.card .thumb img{max-height:210px;width:auto;object-fit:contain}
.card .body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.card .tag{align-self:flex-start;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:4px;margin-bottom:10px}
.tag.elektrik{background:var(--navy-100);color:var(--navy-700)}
.tag.mazot{background:var(--acc-100);color:var(--acc-600)}
.card h3 a{color:var(--navy-900)}
.card .specs{list-style:none;padding:0;margin:10px 0 12px;font-size:.86rem;color:var(--muted)}
.card .specs li{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding:4px 0}
.card .specs li b{color:var(--ink)}
.card .foot{margin-top:auto;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.card .foot .btn{padding:10px 18px;font-size:.88rem}
.link-more{font-weight:700;font-size:.88rem}

/* ---- Şehir grid ---- */
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}
.city-grid a{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px;font-weight:600;color:var(--navy-800);display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow-sm);font-size:.93rem}
.city-grid a:hover{background:var(--navy-50);border-color:var(--navy-600);color:var(--navy-900)}
.city-grid a span.arrow{color:var(--acc-500)}

/* ---- Özellik listesi ---- */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat .f{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.feat .f .ic{width:48px;height:48px;border-radius:8px;background:var(--navy-100);display:grid;place-items:center;margin-bottom:14px}
.feat .f .ic svg{width:24px;height:24px;fill:var(--navy-700)}
.feat .f p{color:var(--muted);font-size:.93rem}

/* ---- SSS ---- */
.faq{max-width:840px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;color:var(--navy-900);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.25rem;color:var(--acc-500);font-weight:700;flex:none}
.faq details[open] summary::after{content:"–"}
.faq details .ans{padding:0 20px 16px;color:var(--muted);font-size:.94rem}

/* ---- CTA bandı ---- */
.cta-band{background:var(--navy-900);color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-100px;bottom:-100px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.18),transparent 65%)}
.cta-band .container{position:relative;z-index:1;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#b8cbda}
.cta-band .btn{margin:6px}
.cta-band .btn-light{background:var(--acc-500);color:#fff}
.cta-band .btn-light:hover{color:#fff;background:var(--acc-600)}

/* ---- Şehir sayfası ---- */
.city-hero{background:linear-gradient(150deg,var(--navy-900),var(--navy-700));color:#fff;padding:56px 0;position:relative;overflow:hidden}
.city-hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--acc-500)}
.city-hero h1{color:#fff}
.city-hero p{color:#c8d9e6;max-width:72ch}
.prose{max-width:840px}
.prose h2{margin-top:1.4em}
.prose h3{margin-top:1.1em}
.prose p,.prose li{color:var(--muted)}
.prose strong{color:var(--ink)}
.toc{background:var(--navy-50);border:1px solid var(--line);border-left:4px solid var(--acc-500);border-radius:6px;padding:16px 22px;font-size:.9rem}
.toc b{color:var(--navy-900)}
.toc ol{margin:.4em 0 0;padding-left:1.3em}

/* ---- Bağlantı hedefleri sabit header altında kalmasın ---- */
section[id], .prose h2[id], .prose h3[id]{scroll-margin-top:92px}

/* ---- İçerik içi görsel ---- */
.prose figure.inline-img{float:right;max-width:290px;margin:6px 0 18px 26px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;box-shadow:var(--shadow-sm)}
.prose figure.inline-img img{border-radius:6px}
.prose figure.inline-img figcaption{font-size:.8rem;color:var(--muted);text-align:center;margin-top:10px;line-height:1.4}
.prose::after{content:"";display:block;clear:both}
@media(max-width:640px){.prose figure.inline-img{float:none;max-width:100%;margin:14px auto}}

/* ---- Ürün sayfası ---- */
.product-top{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.product-top .gallery{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.product-top .gallery img{max-height:420px;width:auto;margin:0 auto}
.spec-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.93rem}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.spec-table th{background:var(--navy-50);color:var(--navy-900);width:42%}
.price-note{background:var(--acc-100);border-left:4px solid var(--acc-500);border-radius:4px;padding:12px 16px;font-size:.92rem;color:#7a4a08}

/* ---- Footer ---- */
footer{background:var(--navy-900);color:#a9c2d4}
footer .container{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:32px;padding-top:52px;padding-bottom:52px}
footer h4{color:#fff;margin-bottom:14px;font-size:.95rem;text-transform:uppercase;letter-spacing:.08em}
footer a{color:#a9c2d4;font-size:.9rem}
footer a:hover{color:var(--acc-500)}
footer ul{list-style:none;padding:0}
footer li{margin:.4em 0}
footer .copy{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:.8rem;text-align:center;color:#7e99ad}
footer .copy p{margin:0}

/* ---- Sabit sağ butonlar (Ara + WhatsApp) ---- */
.side-actions{position:fixed;right:16px;bottom:16px;z-index:120;display:flex;flex-direction:column;gap:10px}
.side-actions a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 22px rgba(12,36,55,.28);transition:transform .2s ease}
.side-actions a:hover{transform:scale(1.08)}
.side-actions a.call{background:var(--acc-500)}
.side-actions a.wa{background:#22a556}
.side-actions svg{width:26px;height:26px;fill:#fff}

/* ---- Responsive ---- */
@media(max-width:980px){
  .hero .container{grid-template-columns:1fr}
  .hero figure{max-width:460px;margin:0 auto}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .feat{grid-template-columns:1fr 1fr}
  .product-top{grid-template-columns:1fr}
  footer .container{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  nav.main.open{display:flex}
  .burger{display:block}
  .grid-4,.grid-3,.grid-2,.feat{grid-template-columns:1fr}
  footer .container{grid-template-columns:1fr}
  .call-btn span.txt{display:none}
  .trust{flex-wrap:wrap;gap:14px}
  .trust div{border-left:none;padding:0}
}