:root{
  --brand:#0077ff;
  --brand-dark:#0b1f4d;
  --accent:#ff5a36;
  --accent-2:#00d1b2;
  --text:#0f1b33;
  --muted:#5b6785;
  --bg:#ffffff;
  --bg-alt:#f2f6ff;
  --border:#e3e9f7;
  --radius:20px;
  --shadow:0 18px 40px rgba(11,31,77,.12);
  --grad:linear-gradient(120deg,#0077ff 0%,#00c2ff 45%,#00d1b2 100%);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){--bg:#0c1a21;--bg-alt:#11232c;--text:#e6eef2;--muted:#9bb0ba;--border:#1d3440;--brand-dark:#8fd3e6;--shadow:none}
}
:root[data-theme="dark"]{--bg:#0c1a21;--bg-alt:#11232c;--text:#e6eef2;--muted:#9bb0ba;--border:#1d3440;--brand-dark:#8fd3e6;--shadow:none}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
.container{width:min(1180px,100% - 32px);margin-inline:auto}
main section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
h1,h2,h3{line-height:1.2;color:var(--brand-dark)}
h1{font-size:clamp(2rem,4.6vw,3.4rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,2.8vw,2.3rem);margin-bottom:12px;letter-spacing:-.01em}
.eyebrow{display:inline-block;text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:800;color:var(--accent);margin-bottom:10px}
h2{background:linear-gradient(90deg,var(--brand-dark),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);max-width:680px;margin-bottom:36px}

/* Butonlar */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:12px;font-weight:600;font-size:.98rem;border:2px solid transparent;cursor:pointer;transition:.2s;font-family:inherit}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,90,54,.4)}
.btn-outline{border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline:hover{background:#fff;color:var(--brand-dark)}
.btn-wa{background:#25d366;color:#fff}
.btn-wa:hover{background:#1ebe5a}
.btn-brand{background:var(--brand);color:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:#ffffff;color:#0f1b33;backdrop-filter:blur(10px);border-bottom:1px solid #e3e9f7}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.logo{font-weight:800;font-size:1.1rem;color:#0b1f4d;letter-spacing:.02em}
.logo span{color:var(--accent);margin-left:4px}
.menu{display:flex;gap:28px}
.menu a{color:#0f1b33;font-weight:600;font-size:.95rem}
.menu a:hover{color:#0077ff}
.head-actions .btn{padding:10px 18px;font-size:.9rem}

/* Hero */
.hero{background:radial-gradient(900px 500px at 90% -10%,rgba(255,90,54,.45) 0%,transparent 60%),radial-gradient(700px 400px at 0% 110%,rgba(0,209,178,.35) 0%,transparent 60%),var(--grad);color:#fff;padding:120px 0 110px;position:relative;overflow:hidden}
.hero h1{color:#fff;max-width:820px;margin-bottom:22px}
.hero p{font-size:1.15rem;opacity:.92;max-width:640px;margin-bottom:34px}
.hero .eyebrow{display:inline-block;color:#fff;background:rgba(11,31,77,.55);padding:7px 16px;border-radius:999px;font-weight:700;letter-spacing:.08em;margin-bottom:14px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* Sihirbaz */
.wizard{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.wizard label{display:grid;gap:8px;font-size:.88rem;font-weight:600;color:var(--brand-dark)}
.wizard label[hidden]{display:none}
.wizard input,.wizard select,.filters input,.filters select{font:inherit;padding:13px 14px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);width:100%}
.wizard input:focus,.wizard select:focus,.filters input:focus,.filters select:focus{outline:2px solid var(--brand);border-color:transparent}
.wizard .btn{grid-column:1/-1;justify-self:start}
.stepper{display:flex;align-items:stretch;gap:6px}
.stepper input{text-align:center;min-width:0}
.stepper button{flex:0 0 auto;padding:0 14px;border:1px solid var(--border);border-radius:10px;background:var(--bg-alt);color:var(--brand-dark);font-weight:700;font-size:.95rem;cursor:pointer;font-family:inherit}
.stepper button:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.wizard-result{margin-top:28px}
.wizard-result .note{color:var(--muted);font-size:.9rem;margin-bottom:14px}

/* Filtreler */
.filters{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:14px;margin-bottom:28px}
.thumb{width:100%;aspect-ratio:4/3;object-fit:contain;border-radius:12px;background:linear-gradient(160deg,#f2f6ff,#e8fbf7)}
.thumb-empty{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem}
.detail-top{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.detail-top .thumb{aspect-ratio:auto;max-height:260px}

/* Ürün kartları */
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.25s;display:flex;flex-direction:column;gap:10px}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.card .tag{align-self:flex-start;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:linear-gradient(90deg,#e6f0ff,#e0fbf6);color:var(--brand);padding:6px 12px;border-radius:20px}
.card .price{background:var(--bg-alt);border-radius:12px;padding:10px 14px}
.card h3{font-size:1.15rem}
.card .specs{list-style:none;color:var(--muted);font-size:.92rem;display:grid;gap:4px}
.card .price{margin-top:auto;font-size:1.25rem;font-weight:800;color:var(--brand-dark)}
.card .price small{display:block;font-size:.72rem;font-weight:500;color:var(--muted)}
.card .actions{display:flex;gap:10px;flex-wrap:wrap}
.card .actions .btn{padding:10px 16px;font-size:.88rem}
.card .btn-outline{border-color:var(--border);color:var(--brand)}
.card .btn-outline:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.empty{color:var(--muted)}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(6,20,27,.6);display:grid;place-items:center;padding:16px;z-index:100}
.modal[hidden]{display:none}
.modal-box{background:var(--bg);color:var(--text);border-radius:20px;max-width:720px;width:100%;max-height:90vh;overflow:auto;padding:34px;position:relative}
.modal-close{position:absolute;top:12px;right:14px;background:none;border:0;font-size:2rem;cursor:pointer;color:var(--muted)}
.modal-box h3{font-size:1.5rem;margin-bottom:6px}
.spec-table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.95rem}
.spec-table td{padding:10px 8px;border-bottom:1px solid var(--border)}
.spec-table td:first-child{color:var(--muted);width:45%}
.modal .price-big{font-size:1.8rem;font-weight:800;color:var(--brand-dark)}

/* Markalar */
.brands .card h3{color:var(--brand-dark)}

/* Footer */
.site-footer{background:var(--brand-dark);color:#cfe0e8;padding:60px 0 24px}
.site-footer a{color:#cfe0e8}
.site-footer a:hover{color:var(--accent)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;margin-bottom:34px}
.site-footer strong{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;text-align:center;font-size:.85rem;opacity:.8}
.foot-logo{height:72px;width:auto;background:#fff;border-radius:14px;padding:10px 16px;margin:0 auto 28px;display:block}

/* WhatsApp yüzen */
.wa-float{position:fixed;right:20px;bottom:20px;background:#25d366;color:#fff;padding:14px 20px;border-radius:50px;font-weight:700;box-shadow:0 8px 22px rgba(0,0,0,.2);z-index:60}

@media (max-width:900px){
  .menu{display:none}
  .filters{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  main section{padding:56px 0}
  .hero{padding:90px 0 80px}
  .modal-box{padding:24px}
}

/* Ürün detayı: galeri, öne çıkan değerler, dokümanlar */
.modal-box{max-width:940px}
.detail-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:start}
.gallery-main{background:linear-gradient(160deg,#f2f6ff,#e8fbf7);border-radius:16px;padding:12px;display:flex;align-items:center;justify-content:center;min-height:260px}
.gallery-main img{max-width:100%;max-height:340px;object-fit:contain;display:block}
.gallery-thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.gal-thumb{width:62px;height:62px;padding:3px;border:2px solid var(--border);border-radius:10px;background:#fff;cursor:pointer;transition:.15s}
.gal-thumb img{width:100%;height:100%;object-fit:contain;display:block}
.gal-thumb.on,.gal-thumb:hover{border-color:var(--brand)}
.detail-info h3{margin:6px 0 4px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.chip{background:var(--bg-alt);border:1px solid var(--border);border-radius:12px;padding:8px 12px;font-weight:700;font-size:.92rem;color:var(--brand-dark)}
.chip em{display:block;font-style:normal;font-weight:600;font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.detail-actions{margin-top:16px}
.detail-h{margin:26px 0 8px;font-size:1.05rem;color:var(--brand-dark)}
.spec-note{font-size:.85rem}
.doc-links{display:flex;gap:10px;flex-wrap:wrap}
@media (max-width:760px){.detail-grid{grid-template-columns:1fr}}
/* Marka butonları */
.brand-pick{grid-column:1/-1}
.brand-title{display:block;font-size:.88rem;font-weight:600;color:var(--brand-dark);margin-bottom:8px}
.brand-btns{display:flex;gap:12px;flex-wrap:wrap}
.brand-btn{flex:1 1 150px;max-width:240px;height:68px;display:flex;align-items:center;justify-content:center;padding:10px 18px;background:#fff;border:2px solid var(--border);border-radius:14px;cursor:pointer;transition:.15s}
.brand-btn img{max-height:34px;max-width:100%;width:auto;display:block}
.brand-btn:hover{border-color:var(--brand)}
.brand-btn.on{border-color:var(--brand);box-shadow:0 0 0 4px rgba(0,119,255,.15)}
/* Kategori butonları */
.cat-pills{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.pill{border:2px solid var(--border);background:#fff;color:var(--brand-dark);font:600 .9rem "Segoe UI",Roboto,Arial,sans-serif;padding:8px 14px;border-radius:999px;cursor:pointer;transition:.15s}
.pill span{display:inline-block;margin-left:4px;font-weight:700;font-size:.78rem;color:var(--muted)}
.pill:hover{border-color:var(--brand)}
.pill.on{background:var(--brand);border-color:var(--brand);color:#fff}
.pill.on span{color:#dbeaff}
/* Ana ekran fotoğrafı (mağaza girişi) */
.hero-photo{position:absolute;right:max(16px,calc((100% - 1180px)/2));top:50%;transform:translateY(-50%);width:min(340px,30%);z-index:1;border-radius:22px;overflow:hidden;box-shadow:0 24px 50px rgba(0,0,0,.35);border:4px solid rgba(255,255,255,.85)}
.hero-photo img{display:block;width:100%;height:auto;max-height:520px;object-fit:cover}
.hero .container{position:relative;z-index:2}
@media (min-width:1001px){.hero{min-height:600px;display:flex;align-items:center}.hero .container{width:min(1180px,100% - 32px)}.hero h1,.hero p{max-width:620px}}
@media (max-width:1000px){.hero-photo{position:relative;right:auto;top:auto;transform:none;width:min(320px,calc(100% - 32px));margin:36px auto 0}}
/* Ana ekran: daha derli toplu (düşük yükseklik, küçük başlık) */
.hero{padding:52px 0 48px}
.hero h1{font-size:clamp(1.8rem,3.4vw,2.6rem);margin-bottom:12px}
.hero p{font-size:1.02rem;margin-bottom:22px}
.hero .btn{padding:12px 22px}
@media (min-width:1001px){.hero{min-height:0}.hero:has(.hero-photo){min-height:460px}.hero-photo{width:min(250px,22%)}.hero-photo img{max-height:360px}}
/* Ana ekran görseli: Zen hava perdesi (beyaz zeminli ürün görseli kart içinde) */
.hero-photo{background:#fff;padding:14px;width:min(380px,30%);border-width:0}
.hero-photo img{max-height:240px;object-fit:contain}
@media (min-width:1001px){.hero:has(.hero-photo){min-height:0}}
.old-price{font-size:.85rem;font-weight:500;color:var(--muted);margin-right:4px}
.brand-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.brand-card{position:relative;background:#fff;border:1px solid var(--line,#e3e8ef);border-radius:16px;padding:28px 24px;display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.brand-card img{height:44px;width:auto;max-width:180px;object-fit:contain}
.brand-card h3{margin:6px 0 0;font-size:1.25rem}
.brand-card p{margin:0;color:var(--muted)}
.brand-card .brand-count{margin-top:auto;font-size:.9rem}
.brand-card .brand-count strong{color:var(--brand-dark);font-size:1.1rem}
.brand-card-main{border:2px solid var(--brand-dark,#0b4a8f);box-shadow:0 10px 28px rgba(11,74,143,.14)}
.brand-card .ribbon{position:absolute;top:-12px;right:16px;background:var(--brand-dark,#0b4a8f);color:#fff;font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:999px}
@media(max-width:820px){.brand-cards{grid-template-columns:1fr}}