/* ==========================================================================
   SC GRUP — Design Tokens
   Palette çıkış noktası: logodaki kırmızı/mavi = sıcak/soğuk su vanası.
   ========================================================================== */
:root{
  --sc-red:        #ED1C24;
  --sc-red-deep:   #B4151B;
  --sc-blue:       #00AEEF;
  --sc-blue-deep:  #0A7FAE;
  --sc-ink:        #231F20;
  --sc-ink-soft:   #45403F;
  --sc-steel:      #6E7378;
  --sc-paper:      #F2F3F1;
  --sc-paper-2:    #E8EAE6;
  --sc-line:       #DFE1DC;
  --sc-white:      #FFFFFF;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius-sm: 4px;
  --radius-md: 10px;
  --container: 1180px;

  --shadow-card: 0 1px 2px rgba(35,31,32,.06), 0 8px 24px -12px rgba(35,31,32,.18);
}

/* ==========================================================================
   Reset
   ========================================================================== */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--sc-ink);
  background:var(--sc-white);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
body.scroll-lock{ overflow:hidden; }
img{ max-width:100%; display:block; }a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:700; line-height:1.05; margin:0 0 .5em; letter-spacing:.2px; }
p{ margin:0 0 1em; }
button{ font-family:inherit; cursor:pointer; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

:focus-visible{
  outline:3px solid var(--sc-blue);
  outline-offset:2px;
}

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--sc-ink); color:#fff;
  padding:.75rem 1.25rem; z-index:999; border-radius:0 0 6px 0;
}
.skip-link:focus{ left:0; }

.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }

/* ==========================================================================
   Signature element — "valve line": sıcak/soğuk gösterge çizgisi
   ========================================================================== */
.valve-line{
  height:6px;
  width:100%;
  background:
    repeating-linear-gradient(90deg, rgba(0,0,0,.08) 0 1px, transparent 1px 34px),
    linear-gradient(90deg, var(--sc-red) 0%, var(--sc-red) 46%, var(--sc-ink) 50%, var(--sc-blue) 54%, var(--sc-blue) 100%);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:sticky; top:0; z-index:100;
  border-bottom:1px solid var(--sc-line);
}
/* Bulanıklaştırma efekti ayrı bir katmanda uygulanıyor. "backdrop-filter"
   doğrudan .site-header üzerinde olursa, tarayıcılar bunu position:fixed
   olan alt öğeler (mobil menü paneli gibi) için yeni bir referans kutusu
   sayıyor ve panel tüm ekran yerine sadece header'ın küçük alanına
   sıkışıp görünmez oluyordu. Bu yüzden filtre header'ın kendisinde değil,
   arkasındaki bu ::before katmanında uygulanıyor. */
.site-header::before{
  content:"";
  position:absolute; inset:0; z-index:-1;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
}
.header-inner{
  position:relative;
  display:flex; align-items:center; justify-content:space-between;
  height:78px;
  gap:16px;
}
.brand{ display:flex; align-items:center; flex-shrink:0; }
.brand-logo{ height:52px; width:auto; }

.site-nav ul{ display:flex; align-items:center; gap:4px; }
.site-nav a{
  display:inline-block;
  font-family:var(--font-display);
  font-weight:600;
  font-size:1.05rem;
  letter-spacing:.3px;
  padding:10px 16px;
  border-radius:var(--radius-sm);
  color:var(--sc-ink-soft);
  transition:color .15s ease, background-color .15s ease;
  position:relative;
}
.site-nav a:hover{ color:var(--sc-ink); background:var(--sc-paper); }
.site-nav a.is-active{ color:var(--sc-ink); }
.site-nav a.is-active::after{
  content:"";
  position:absolute; left:16px; right:16px; bottom:6px; height:3px;
  background:linear-gradient(90deg, var(--sc-red), var(--sc-blue));
  border-radius:2px;
}
.site-nav a.nav-cta{
  background:var(--sc-ink); color:#fff; padding:10px 20px; margin-left:6px;
}
.site-nav a.nav-cta:hover{ background:var(--sc-red-deep); color:#fff; }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:42px; height:42px; background:transparent; border:1px solid var(--sc-line);
  border-radius:var(--radius-sm);
}
.nav-toggle span{ height:2px; width:20px; background:var(--sc-ink); margin:0 auto; transition:transform .2s ease, opacity .2s ease; }
.nav-toggle.is-open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-display); font-weight:700; font-size:1.1rem; letter-spacing:.3px;
  padding:14px 28px; border-radius:var(--radius-sm);
  border:2px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease, background-color .15s ease, color .15s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--sc-red); color:#fff; box-shadow:0 10px 24px -10px rgba(237,28,36,.55); }
.btn-primary:hover{ background:var(--sc-red-deep); }
.btn-secondary{ background:var(--sc-blue); color:#fff; box-shadow:0 10px 24px -10px rgba(0,174,239,.5); }
.btn-secondary:hover{ background:var(--sc-blue-deep); }
.btn-ghost{ background:transparent; border-color:var(--sc-ink); color:var(--sc-ink); }
.btn-ghost:hover{ background:var(--sc-ink); color:#fff; }
.btn-outline-white{ background:transparent; border-color:rgba(255,255,255,.6); color:#fff; }
.btn-outline-white:hover{ background:#fff; color:var(--sc-ink); }

/* ==========================================================================
   Hero (anasayfa) — logo formundaki diagonal kesim referansı
   ========================================================================== */
.hero{
  position:relative;
  background:var(--sc-ink);
  color:#fff;
  overflow:hidden;
  padding:110px 0 130px;
}
.hero::before,
.hero::after{
  content:"";
  position:absolute; top:-10%; height:130%; width:46%;
  transform:skewX(-12deg);
}
.hero::before{ right:8%; background:linear-gradient(180deg, var(--sc-red), var(--sc-red-deep)); opacity:.92; }
.hero::after{ right:-4%; background:linear-gradient(180deg, var(--sc-blue), var(--sc-blue-deep)); opacity:.85; }
.hero-inner{ position:relative; z-index:2; max-width:640px; }
.hero-eyebrow{
  font-family:var(--font-mono); font-size:.85rem; letter-spacing:.14em; text-transform:uppercase;
  color:#CFEFFB; display:flex; align-items:center; gap:10px; margin-bottom:18px;
}
.hero-eyebrow::before{ content:""; width:26px; height:2px; background:var(--sc-blue); }
.hero h1{ font-size:clamp(2.6rem, 5.2vw, 4.2rem); margin-bottom:.35em; }
.hero h1 span{ color:var(--sc-blue); }
.hero p.lead{ font-size:1.15rem; color:#D9D8D6; max-width:520px; margin-bottom:2em; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; }

/* ==========================================================================
   Sections generic
   ========================================================================== */
.section{ padding:88px 0; }
.section-alt{ background:var(--sc-paper); }
.section-head{ max-width:640px; margin:0 0 48px; }
.eyebrow{
  font-family:var(--font-mono); font-size:.8rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--sc-blue-deep); display:flex; align-items:center; gap:10px; margin-bottom:14px;
}
.eyebrow::before{ content:""; width:22px; height:2px; background:var(--sc-red); }
.section-head h2{ font-size:clamp(1.9rem, 3.2vw, 2.6rem); }
.section-head p{ color:var(--sc-steel); font-size:1.05rem; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head.center .eyebrow{ justify-content:center; }
.section-head.center .eyebrow::before{ display:none; }

/* ==========================================================================
   Highlight strip (anasayfa istatistik/özellik kartları)
   ========================================================================== */
.highlight-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:1px;
  background:var(--sc-line); border:1px solid var(--sc-line); border-radius:var(--radius-md); overflow:hidden;
}
.highlight-card{ background:#fff; padding:28px 22px; }
.highlight-card .num{ font-family:var(--font-display); font-size:2.4rem; font-weight:800; color:var(--sc-ink); line-height:1; }
.highlight-card .num em{ font-style:normal; color:var(--sc-red); }
.highlight-card .label{ margin-top:8px; color:var(--sc-steel); font-size:.95rem; }

/* ==========================================================================
   Feature / info cards
   ========================================================================== */
.feature-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.feature-card{
  background:#fff; border:1px solid var(--sc-line); border-radius:var(--radius-md);
  padding:30px 26px; box-shadow:var(--shadow-card);
}
.feature-card .icon-tick{
  width:40px; height:6px; border-radius:3px; margin-bottom:18px;
  background:linear-gradient(90deg, var(--sc-red), var(--sc-blue));
}
.feature-card h3{ font-size:1.3rem; margin-bottom:.4em; }
.feature-card p{ color:var(--sc-steel); font-size:.98rem; margin-bottom:0; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{
  background:var(--sc-ink); color:#fff; border-radius:var(--radius-md);
  padding:52px 44px; display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap;
}
.cta-band h3{ font-size:1.9rem; margin-bottom:.2em; }
.cta-band p{ color:#CFD1CE; margin-bottom:0; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ==========================================================================
   Sayfa üstü mini-hero (iç sayfalar)
   ========================================================================== */
.page-hero{
  position:relative; background:var(--sc-ink); color:#fff; padding:64px 0 56px; overflow:hidden;
}
.page-hero::after{
  content:""; position:absolute; right:-6%; top:0; height:100%; width:34%;
  background:linear-gradient(180deg, var(--sc-red), var(--sc-blue)); transform:skewX(-12deg); opacity:.9;
}
.page-hero .eyebrow{ color:#CFEFFB; }
.page-hero .eyebrow::before{ background:var(--sc-blue); }
.page-hero h1{ font-size:clamp(2.1rem, 4vw, 3rem); position:relative; z-index:2; max-width:600px; }
.page-hero p{ color:#D9D8D6; max-width:560px; position:relative; z-index:2; margin-bottom:0; }

/* ==========================================================================
   Hakkımızda
   ========================================================================== */
.about-block{ display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:start; }
.about-block + .about-block{ margin-top:80px; }
.about-block .num-tag{
  font-family:var(--font-mono); font-size:.8rem; color:var(--sc-steel); letter-spacing:.1em;
  display:block; margin-bottom:10px;
}
.about-block h2{ font-size:clamp(1.7rem,3vw,2.3rem); }
.about-block p{ color:var(--sc-ink-soft); }
.stat-list{ display:flex; flex-direction:column; gap:0; border-top:1px solid var(--sc-line); }
.stat-list li{
  display:flex; align-items:center; gap:14px; padding:16px 4px; border-bottom:1px solid var(--sc-line);
  font-family:var(--font-display); font-weight:600; font-size:1.08rem;
}
.stat-list li::before{
  content:""; width:9px; height:9px; border-radius:50%; flex-shrink:0;
  background:linear-gradient(135deg, var(--sc-red), var(--sc-blue));
}
.vision-mission{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.vm-card{ border-radius:var(--radius-md); padding:34px; }
.vm-card.vision{ background:linear-gradient(160deg, var(--sc-red), var(--sc-red-deep)); color:#fff; }
.vm-card.mission{ background:linear-gradient(160deg, var(--sc-blue), var(--sc-blue-deep)); color:#fff; }
.vm-card h3{ font-size:1.5rem; }
.vm-card p{ color:rgba(255,255,255,.92); margin-bottom:0; }

/* ==========================================================================
   Ürünlerimiz — kategori kartları
   ========================================================================== */
.back-link{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-display); font-weight:600; font-size:1.02rem;
  color:var(--sc-steel); margin-bottom:32px;
  transition:color .15s ease;
}
.back-link:hover{ color:var(--sc-ink); }

.category-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:22px;
}
.category-card{
  display:block; border:1px solid var(--sc-line); border-radius:var(--radius-md); overflow:hidden;
  background:#fff; transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.category-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-card); border-color:transparent; }
.category-card__img{
  aspect-ratio:4/3; background:var(--sc-paper); display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.category-card__img img{ width:100%; height:100%; object-fit:contain; padding:18px; }
.category-card__body{
  padding:18px 20px 22px; border-top:3px solid transparent;
  border-image:linear-gradient(90deg, var(--sc-red), var(--sc-blue)) 1;
}
.category-card__body h3{ font-size:1.25rem; margin-bottom:.25em; }
.category-card__count{
  font-family:var(--font-mono); font-size:.78rem; color:var(--sc-steel); letter-spacing:.05em;
}

/* ==========================================================================
   Ürünlerimiz — 3'lü ürün grid'i
   ========================================================================== */
.product-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:26px;
}
.product-card{
  border:1px solid var(--sc-line); border-radius:var(--radius-md); overflow:hidden; background:#fff;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.product-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-card); border-color:transparent; }
.product-card__img{
  aspect-ratio:1/1; background:var(--sc-paper); display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.product-card__img img{ width:100%; height:100%; object-fit:contain; padding:14px; }
.product-card__body{ padding:18px 20px 22px; }
.product-card__sku{
  font-family:var(--font-mono); font-size:.82rem; color:var(--sc-steel);
  margin:0 0 8px;
}
.product-card__sku strong{ color:var(--sc-ink); font-weight:700; }
.product-card__name{
  font-family:var(--font-display); font-weight:600; font-size:1.2rem; line-height:1.25;
  color:var(--sc-ink); margin:0 0 10px;
}
.product-card__desc{
  font-size:.92rem; line-height:1.65; color:var(--sc-ink-soft);
}

.empty-note{ color:var(--sc-steel); padding:40px 0; text-align:center; font-size:1.05rem; }

.api-error{
  border:1px dashed var(--sc-line); border-radius:var(--radius-md); padding:48px 24px; text-align:center;
  color:var(--sc-steel); background:var(--sc-paper);
}
.api-error strong{ display:block; color:var(--sc-ink); font-family:var(--font-display); font-size:1.3rem; margin-bottom:8px; }

.product-card__img img.js-zoomable{ cursor:zoom-in; }

.product-card__cta{
  display:flex; align-items:center; justify-content:center; gap:9px;
  margin-top:16px; padding:12px 16px; border-radius:var(--radius-sm);
  background:#25D366; color:#fff; font-family:var(--font-display); font-weight:700; font-size:.98rem;
  transition:background-color .15s ease, transform .15s ease;
}
.product-card__cta:hover{ background:#1EBE5A; transform:translateY(-2px); }

/* ==========================================================================
   Sağ alt sabit aksiyon butonları (WhatsApp / Bayi Giriş)
   ========================================================================== */
.float-actions{
  position:fixed; right:20px; bottom:20px; z-index:200;
  display:flex; flex-direction:column; align-items:flex-end; gap:12px;
}
.float-btn{
  display:flex; align-items:center; gap:10px;
  padding:13px 20px; border-radius:999px;
  font-family:var(--font-display); font-weight:700; font-size:.95rem; color:#fff;
  box-shadow:0 12px 26px -8px rgba(0,0,0,.4);
  transition:transform .15s ease, box-shadow .15s ease;
}
.float-btn:hover{ transform:translateY(-3px); }
.float-btn--whatsapp{ background:#25D366; }
.float-btn--bayi{
  background:var(--sc-red);
  animation: bayi-blink 1.6s ease-in-out infinite;
}
@keyframes bayi-blink{
  0%, 100% { opacity:1; box-shadow:0 12px 26px -8px rgba(237,28,36,.55); }
  50%      { opacity:.55; box-shadow:0 12px 34px -4px rgba(237,28,36,.85); }
}
body.scroll-lock .float-actions{ display:none; }

@media (max-width:520px){
  .float-actions{ right:14px; bottom:14px; gap:10px; }
  .float-btn{ padding:0; width:52px; height:52px; justify-content:center; border-radius:50%; }
  .float-btn span{ display:none; }
}

/* ==========================================================================
   Lightbox (ürün görseli büyütme)
   ========================================================================== */
.lightbox{
  position:fixed; inset:0; z-index:300;
  background:rgba(15,13,13,.94);
  display:none; align-items:center; justify-content:center;
  padding:32px;
}
.lightbox.is-open{ display:flex; }
.lightbox__img{
  max-width:min(90vw, 880px); max-height:85vh; width:auto; height:auto;
  border-radius:10px; box-shadow:0 40px 90px -20px rgba(0,0,0,.7);
  background:#fff; object-fit:contain;
}
.lightbox__close{
  position:absolute; top:22px; right:24px; width:44px; height:44px; border-radius:50%;
  background:rgba(255,255,255,.14); color:#fff; border:none; font-size:1.9rem; line-height:1;
  display:flex; align-items:center; justify-content:center;
}
.lightbox__close:hover{ background:rgba(255,255,255,.24); }


/* ==========================================================================
   İletişim
   ========================================================================== */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:40px; align-items:start; }
.contact-card{
  background:#fff; border:1px solid var(--sc-line); border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
}
.contact-list{ display:flex; flex-direction:column; }
.contact-list li{
  display:flex; gap:16px; padding:22px 26px; border-bottom:1px solid var(--sc-line);
}
.contact-list li:last-child{ border-bottom:none; }
.contact-list .ico{
  width:42px; height:42px; border-radius:10px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(160deg, var(--sc-red), var(--sc-blue)); color:#fff;
  font-family:var(--font-mono); font-size:.75rem; font-weight:700;
}
.contact-list .label{
  display:block; font-family:var(--font-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--sc-steel); margin-bottom:4px;
}
.contact-list .value{ font-family:var(--font-display); font-size:1.15rem; font-weight:600; }
.contact-list a.value:hover{ color:var(--sc-blue-deep); }

.map-wrap{
  border-radius:var(--radius-md); overflow:hidden; border:1px solid var(--sc-line);
  box-shadow:var(--shadow-card); height:100%; min-height:420px;
}
.map-wrap iframe{ width:100%; height:100%; min-height:420px; border:0; display:block; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background:var(--sc-ink); color:#D9D8D6; margin-top:100px; }
.footer-grid{
  display:grid; grid-template-columns:1.2fr 1fr 1.2fr; gap:48px;
  padding-top:56px; padding-bottom:40px;
}
.footer-logo{ height:44px; margin-bottom:16px; }
.footer-brand p{ color:#A9ACA9; max-width:280px; }
.footer-col h3{
  font-family:var(--font-mono); font-size:.8rem; letter-spacing:.12em; text-transform:uppercase;
  color:#8D908C; margin-bottom:18px; font-weight:500;
}
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a:hover{ color:#fff; }
.footer-contact li{ display:flex; flex-direction:column; gap:2px; }
.footer-contact .label{ font-family:var(--font-mono); font-size:.7rem; color:#8D908C; letter-spacing:.08em; text-transform:uppercase; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1); }
.footer-bottom-inner{
  padding-top:20px; padding-bottom:20px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; font-size:.88rem; color:#8D908C;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .highlight-grid{ grid-template-columns:repeat(2,1fr); }
  .feature-grid{ grid-template-columns:repeat(2,1fr); }
  .category-grid{ grid-template-columns:repeat(2,1fr); }
  .product-grid{ grid-template-columns:repeat(2,1fr); }
  .about-block{ grid-template-columns:1fr; gap:28px; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width: 760px){
  .header-inner{ height:66px; }
  .brand-logo{ height:42px; }
  .nav-toggle{ display:flex; }
  .site-nav{
    position:fixed; top:66px; left:0; right:0; bottom:0;
    background:#fff; transform:translateX(100%); transition:transform .25s ease;
    padding:20px; overflow-y:auto; z-index:99;
  }
  .site-nav.is-open{ transform:translateX(0); }
  .site-nav ul{ flex-direction:column; align-items:stretch; gap:2px; }
  .site-nav a{ font-size:1.3rem; padding:16px 10px; border-bottom:1px solid var(--sc-line); border-radius:0; }
  .site-nav a.is-active::after{ display:none; }
  .site-nav a.nav-cta{ margin:14px 0 0; text-align:center; }

  .hero{ padding:64px 0 84px; text-align:left; }
  .hero::before,.hero::after{ width:70%; opacity:.5; }
  .hero-inner{ max-width:100%; }

  .section{ padding:60px 0; }
  .highlight-grid{ grid-template-columns:1fr 1fr; }
  .highlight-card{ padding:22px 16px; }
  .feature-grid{ grid-template-columns:1fr; }
  .category-grid{ grid-template-columns:1fr 1fr; gap:14px; }
  .product-grid{ grid-template-columns:1fr; gap:18px; }
  .vision-mission{ grid-template-columns:1fr; }
  .cta-band{ padding:36px 24px; flex-direction:column; align-items:flex-start; }
  .footer-grid{ grid-template-columns:1fr; padding-top:44px; padding-bottom:28px; gap:32px; }
  .page-hero::after{ width:60%; opacity:.55; }
}

@media (max-width: 420px){
  .category-grid{ grid-template-columns:1fr; }
  .highlight-grid{ grid-template-columns:1fr 1fr; }
}