/* Tanjant Makine — kurumsal site */

:root{
  --blue: #005BC6;
  --blue-dark: #00408f;
  --blue-light: #e8f0fc;
  --ink: #14181f;
  --ink-soft: #4a5568;
  --line: #e2e5ea;
  --bg: #f6f7f9;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 2px 10px rgba(20,24,31,.06), 0 1px 2px rgba(20,24,31,.04);
  --shadow-lg: 0 12px 32px rgba(20,24,31,.14), 0 2px 8px rgba(20,24,31,.08);
  --maxw: 1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:34px;width:auto}
.brand-word{font-weight:800;font-size:1.35rem;letter-spacing:.02em;color:var(--ink)}
.brand-word span{color:var(--blue)}
.brand-sub{display:none}
nav.main-nav ul{display:flex;gap:2px}
nav.main-nav a{
  display:block;padding:10px 16px;border-radius:9px;font-weight:600;font-size:.95rem;color:var(--ink-soft);
  transition:background .15s,color .15s;
}
nav.main-nav a:hover{background:var(--blue-light);color:var(--blue-dark)}
nav.main-nav a.active{color:var(--blue);background:var(--blue-light)}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(160deg,#0a1830 0%,#0d2a5c 55%,var(--blue) 130%);
  color:#fff;padding:88px 0 96px;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at 70% 30%, black 0%, transparent 70%);
  pointer-events:none;
}
.hero .container{position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:#bcd4ff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{font-size:clamp(2rem,4.2vw,3.2rem);max-width:820px;font-weight:800}
.hero p.lead{font-size:1.15rem;max-width:640px;color:#d7e3fb;margin-bottom:2em}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-weight:700;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;
}
.btn-primary{background:#fff;color:var(--blue-dark)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.18)}
.btn-outline{border-color:rgba(255,255,255,.4);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.1)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}

/* stat row */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:-56px;position:relative;z-index:2;box-shadow:var(--shadow-lg)}
.stat-row .stat{background:#fff;padding:26px 24px;text-align:left}
.stat .num{font-size:1.9rem;font-weight:800;color:var(--blue)}
.stat .label{font-size:.88rem;color:var(--ink-soft);margin-top:2px}

/* ---------- Section basics ---------- */
section{padding:84px 0}
.section-head{max-width:680px;margin-bottom:44px}
.kicker{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);margin-top:.4em}
.section-head p{color:var(--ink-soft);font-size:1.05rem;margin-top:.6em}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- Category cards (home) ---------- */
.cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:36px;box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;
  display:flex;flex-direction:column;min-height:260px;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cat-card .tag{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-bottom:10px}
.cat-card h3{font-size:1.5rem}
.cat-card p{color:var(--ink-soft);flex:1}
.cat-card .go{font-weight:700;color:var(--blue);display:inline-flex;align-items:center;gap:6px}
.cat-icon{width:52px;height:52px;border-radius:12px;background:var(--blue-light);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--blue)}
.cat-icon svg{width:26px;height:26px}

/* ---------- Brand strip ---------- */
.brand-strip{display:flex;flex-wrap:wrap;gap:14px}
.brand-pill{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:10px 20px;font-weight:700;color:var(--ink-soft);font-size:.92rem;
}

/* ---------- Product grid ---------- */
.subgroup{margin-bottom:64px}
.subgroup-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px;border-bottom:2px solid var(--ink);padding-bottom:12px}
.subgroup-head h3{font-size:1.3rem}
.subgroup-head .count{color:var(--ink-soft);font-size:.9rem;font-weight:600}

.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:22px}
.product-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  cursor:pointer;transition:transform .18s,box-shadow .18s;display:flex;flex-direction:column;
  box-shadow:var(--shadow);
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.product-card .thumb{
  aspect-ratio:4/3;background:#eef1f5;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;
}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:top center}
.product-card .thumb .zoom-hint{
  position:absolute;bottom:8px;right:8px;background:rgba(20,24,31,.72);color:#fff;font-size:.72rem;
  padding:4px 9px;border-radius:999px;font-weight:600;opacity:0;transition:opacity .15s;
}
.product-card:hover .zoom-hint{opacity:1}
.product-card .body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.product-card .body .brandline{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-bottom:6px}
.product-card .body h4{font-size:1.05rem;margin-bottom:8px}
.product-card .body .tagline{color:var(--ink-soft);font-size:.92rem;flex:1}
.product-card .body .more{margin-top:14px;font-weight:700;font-size:.88rem;color:var(--blue)}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed;inset:0;background:rgba(10,14,22,.66);backdrop-filter:blur(3px);
  display:none;align-items:flex-start;justify-content:center;z-index:1000;padding:5vh 16px;overflow-y:auto;
}
.modal-overlay.open{display:flex}
.modal{
  background:#fff;border-radius:16px;max-width:960px;width:100%;box-shadow:var(--shadow-lg);
  overflow:hidden;margin-bottom:5vh;
}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;padding:26px 30px 0}
.modal-head .brandline{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue)}
.modal-head h3{font-size:1.5rem;margin-top:4px}
.modal-close{background:var(--bg);border:1px solid var(--line);width:36px;height:36px;border-radius:50%;font-size:1.1rem;cursor:pointer;flex:none;color:var(--ink-soft)}
.modal-close:hover{background:var(--line)}
.modal-body{padding:16px 30px 34px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:30px}
.modal-gallery{display:flex;flex-direction:column;gap:10px}
.modal-gallery .main-img{border-radius:10px;overflow:hidden;background:#eef1f5;border:1px solid var(--line);aspect-ratio:4/3}
.modal-gallery .main-img img{width:100%;height:100%;object-fit:contain;cursor:zoom-in;background:#fff}
.modal-thumbs{display:flex;gap:8px;flex-wrap:wrap}
.modal-thumbs img{width:64px;height:48px;object-fit:cover;border-radius:6px;border:2px solid transparent;cursor:pointer;background:#eef1f5}
.modal-thumbs img.active{border-color:var(--blue)}
.modal-desc p{color:var(--ink-soft);font-size:.96rem}
.modal-desc h5{font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink);margin:18px 0 8px;font-weight:700}
.spec-table{width:100%;border-collapse:collapse;font-size:.88rem}
.spec-table td{padding:7px 0;border-bottom:1px solid var(--line)}
.spec-table td:first-child{color:var(--ink-soft);width:46%}
.spec-table td:last-child{font-weight:600}
.app-list li{position:relative;padding-left:18px;color:var(--ink-soft);font-size:.92rem;margin-bottom:6px}
.app-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.tech-table-wrap{overflow-x:auto;margin-top:8px}
.tech-table{border-collapse:collapse;width:100%;font-size:.8rem;white-space:nowrap}
.tech-table th,.tech-table td{border:1px solid var(--line);padding:6px 10px;text-align:left}
.tech-table th{background:var(--bg);font-weight:700}
.source-note{font-size:.78rem;color:#9aa3af;margin-top:20px}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(6,8,12,.92);z-index:1100;display:none;align-items:center;justify-content:center;padding:24px}
.lightbox.open{display:flex}
.lightbox img{max-width:100%;max-height:92vh;border-radius:6px}
.lightbox-close{position:absolute;top:22px;right:26px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);color:#fff;width:40px;height:40px;border-radius:50%;font-size:1.2rem;cursor:pointer}

/* ---------- About / Contact ---------- */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:18px}
.info-card h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;color:var(--blue);margin-bottom:10px}
.info-card .value{font-size:1.05rem;font-weight:700}
.info-card .sub{color:var(--ink-soft);font-size:.9rem;margin-top:4px}
.contact-form-note{background:var(--blue-light);border:1px solid #cfe0fb;border-radius:var(--radius);padding:22px;color:var(--blue-dark);font-size:.95rem}
.value-list{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
.value-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.value-item h4{font-size:1rem;margin-bottom:6px}
.value-item p{color:var(--ink-soft);font-size:.9rem;margin:0}

/* ---------- Footer ---------- */
footer{background:#0a1220;color:#c7cfdb;padding:56px 0 28px;margin-top:40px}
footer .foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;margin-bottom:40px}
footer h5{color:#fff;font-size:.95rem;margin-bottom:14px}
footer .brand-word{color:#fff}
footer p{color:#8b95a7;font-size:.9rem}
footer ul li{margin-bottom:9px}
footer a{color:#c7cfdb;font-size:.92rem}
footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem;color:#697285}

/* ---------- misc ---------- */
.page-hero{background:linear-gradient(160deg,#0a1830,#0d2a5c 70%,var(--blue) 140%);color:#fff;padding:64px 0 56px}
.page-hero h1{font-size:clamp(1.8rem,3.4vw,2.6rem)}
.page-hero p{color:#d7e3fb;max-width:640px;font-size:1.05rem;margin-bottom:0}
.breadcrumb{font-size:.85rem;color:#9db6e6;margin-bottom:14px}
.breadcrumb a:hover{color:#fff}

.empty-note{border:1px dashed var(--line);border-radius:var(--radius);padding:30px;text-align:center;color:var(--ink-soft);background:#fff}

@media (max-width: 900px){
  .about-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .modal-body{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr;margin-top:20px}
  footer .foot-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  nav.main-nav{
    position:fixed;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;padding:8px 16px 16px;display:none;box-shadow:var(--shadow-lg);
  }
  nav.main-nav.open{display:flex}
  nav.main-nav ul{flex-direction:column;width:100%}
  nav.main-nav a{padding:12px 10px}
  .nav-toggle{display:block}
  section{padding:56px 0}
  .value-list{grid-template-columns:1fr}
}