/* ==========================================================================
   Göksu Tulumba — Kurumsal Tema
   Palet: Lacivert / Çelik Grisi + Bakır vurgu
   Tipografi: Oswald (başlık) + Inter (gövde) + IBM Plex Mono (teknik/kod)
   ========================================================================== */

:root{
  --navy-950:#0a1c2e;
  --navy-900:#0f2a43;
  --navy-800:#173a5a;
  --steel-600:#4c6579;
  --steel-400:#8fa3b3;
  --steel-200:#c9d5dc;
  --bg-light:#eef2f5;
  --bg-white:#ffffff;
  --text-dark:#1b2733;
  --text-muted:#5b6b78;
  --accent:#c97a2e;
  --accent-dark:#a05f1f;
  --line:#dde5ea;

  --font-display:'Oswald', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;
}

*{ scroll-behavior:smooth; }

body{
  font-family:var(--font-body);
  color:var(--text-dark);
  background:var(--bg-white);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5,.display-font{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.02em;
  color:var(--navy-900);
}

.text-accent{ color:var(--accent) !important; }
.bg-navy{ background-color:var(--navy-900) !important; }
.bg-navy-950{ background-color:var(--navy-950) !important; }
.bg-steel{ background-color:var(--steel-600) !important; }
.bg-soft{ background-color:var(--bg-light) !important; }

.mono{ font-family:var(--font-mono); }

a{ text-decoration:none; }

/* ---------- Eyebrow (bölüm etiketi) ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent);
  display:flex;
  align-items:center;
  gap:.5rem;
  margin-bottom:.75rem;
  font-weight:600;
}
.eyebrow::before{ content:"+"; font-size:1rem; }

/* ---------- Blueprint köşe çerçevesi (imza öge) ---------- */
.blueprint-frame{
  position:relative;
  padding:14px;
}
.blueprint-frame::before,
.blueprint-frame::after,
.blueprint-frame .bp-tr,
.blueprint-frame .bp-bl{
  content:"";
  position:absolute;
  width:26px;
  height:26px;
  border:2px solid var(--accent);
  z-index:2;
}
.blueprint-frame::before{ top:0; left:0; border-right:none; border-bottom:none; }
.blueprint-frame::after{ bottom:0; right:0; border-left:none; border-top:none; }
.blueprint-frame .bp-tr{ top:0; right:0; border-left:none; border-bottom:none; }
.blueprint-frame .bp-bl{ bottom:0; left:0; border-right:none; border-top:none; }
.blueprint-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}

/* ---------- Navbar ---------- */
.navbar-goksu{
  background:var(--navy-950);
  padding-top:.6rem;
  padding-bottom:.6rem;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.navbar-goksu .navbar-brand{
  font-family:var(--font-display);
  color:#fff;
  font-size:1.35rem;
  letter-spacing:.03em;
  line-height:1.05;
}
.navbar-goksu .navbar-brand small{
  display:block;
  font-family:var(--font-mono);
  font-size:.62rem;
  color:var(--steel-400);
  letter-spacing:.15em;
  text-transform:uppercase;
}
.navbar-goksu .nav-link{
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--steel-200);
  padding:.55rem 1rem !important;
  transition:color .2s ease;
}
.navbar-goksu .nav-link:hover,
.navbar-goksu .nav-link.active{
  color:#fff;
}
.navbar-goksu .nav-link.active{
  color:var(--accent);
}
.btn-whatsapp{
  background:#25D366;
  color:#fff;
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.05em;
  padding:.5rem 1.1rem;
  border-radius:2px;
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  transition:background .2s ease, transform .2s ease;
}
.btn-whatsapp:hover{ background:#1ebe5b; color:#fff; transform:translateY(-1px); }

.topbar{
  background:var(--navy-950);
  border-bottom:1px solid rgba(255,255,255,.06);
  font-family:var(--font-mono);
  font-size:.75rem;
  color:var(--steel-400);
}
.topbar a{ color:var(--steel-200); }
.topbar a:hover{ color:var(--accent); }

/* ---------- Butonlar ---------- */
.btn-accent{
  background:var(--accent);
  border:1px solid var(--accent);
  color:#fff;
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:.7rem 1.5rem;
  border-radius:2px;
  transition:all .2s ease;
}
.btn-accent:hover{ background:var(--accent-dark); border-color:var(--accent-dark); color:#fff; }

.btn-outline-navy{
  border:1px solid rgba(255,255,255,.4);
  color:#fff;
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:.7rem 1.5rem;
  border-radius:2px;
  transition:all .2s ease;
}
.btn-outline-navy:hover{ background:rgba(255,255,255,.1); color:#fff; border-color:#fff; }

.btn-outline-dark2{
  border:1px solid var(--navy-800);
  color:var(--navy-900);
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:.65rem 1.4rem;
  border-radius:2px;
}
.btn-outline-dark2:hover{ background:var(--navy-900); color:#fff; }

/* ---------- Hero (Anasayfa) ---------- */
.hero{
  background:var(--navy-900);
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:42px 42px;
  pointer-events:none;
}
.hero h1{
  color:#fff;
  font-size:clamp(2.1rem, 4.2vw, 3.4rem);
  line-height:1.08;
}
.hero p.lead{
  color:var(--steel-200);
  font-size:1.05rem;
  max-width:520px;
}

/* ---------- Sayfa üst banner (iç sayfalar) ---------- */
.page-banner{
  background:var(--navy-900);
  position:relative;
  padding:3.2rem 0 2.4rem;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:36px 36px;
}
.page-banner h1{ color:#fff; margin-bottom:.4rem; font-size:2.1rem; }
.page-banner .breadcrumb{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.05em;
}
.page-banner .breadcrumb a{ color:var(--steel-400); }
.page-banner .breadcrumb .active{ color:var(--accent); }

/* ---------- Zaman çizelgesi (istatistik şeridi) ---------- */
.timeline-strip{
  background:var(--bg-white);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.timeline-item{
  position:relative;
  padding:2.2rem 1rem 1.6rem;
  text-align:center;
  border-left:1px dashed var(--line);
}
.timeline-item:first-child{ border-left:none; }
.timeline-item::before{
  content:"";
  position:absolute;
  top:0; left:50%;
  transform:translate(-50%,-50%);
  width:9px; height:9px;
  border-radius:50%;
  background:var(--accent);
}
.timeline-num{
  font-family:var(--font-display);
  font-size:2.4rem;
  color:var(--navy-900);
  line-height:1;
}
.timeline-label{
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text-muted);
  margin-top:.4rem;
}

/* ---------- Kategori kartları ---------- */
.cat-card{
  background:var(--bg-white);
  border:1px solid var(--line);
  padding:1.8rem 1.4rem;
  height:100%;
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  display:block;
}
.cat-card:hover{
  border-color:var(--accent);
  transform:translateY(-4px);
  box-shadow:0 12px 24px rgba(15,42,67,.08);
}
.cat-card .cat-icon{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-light);
  color:var(--navy-900);
  margin-bottom:1rem;
  font-size:1.3rem;
}
.cat-card:hover .cat-icon{ background:var(--accent); color:#fff; }
.cat-card h3{ font-size:1.05rem; margin-bottom:.3rem; }
.cat-card p{ color:var(--text-muted); font-size:.88rem; margin-bottom:0; }

/* ---------- Neden biz ---------- */
.feature-item{ display:flex; gap:1rem; align-items:flex-start; }
.feature-item .feature-ico{
  flex:0 0 auto;
  width:44px;height:44px;
  background:var(--navy-900);
  color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;
}
.feature-item h4{ font-size:1rem; margin-bottom:.25rem; }
.feature-item p{ color:var(--text-muted); font-size:.9rem; margin-bottom:0; }

/* ---------- Ürün kartları ---------- */
.product-card{
  background:#fff;
  border:1px solid var(--line);
  overflow:hidden;
  height:100%;
  transition:box-shadow .2s ease, transform .2s ease;
}
.product-card:hover{ box-shadow:0 14px 28px rgba(15,42,67,.1); transform:translateY(-3px); }
.product-card .product-img{
  aspect-ratio:1/1;
  background:var(--bg-light);
  display:flex;align-items:center;justify-content:center;
  padding:1.1rem;
  cursor:pointer;
  overflow:hidden;
}
.product-card .product-img img{
  max-width:100%; max-height:100%; object-fit:contain;
  transition:transform .3s ease;
}
.product-card:hover .product-img img{ transform:scale(1.06); }
.product-card .product-body{
  padding:.9rem 1rem 1.1rem;
  border-top:1px solid var(--line);
}
.product-card .product-cat{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
}
.product-card h3{
  font-size:.92rem;
  text-transform:none;
  letter-spacing:0;
  font-family:var(--font-body);
  font-weight:600;
  color:var(--text-dark);
  margin-top:.15rem;
  margin-bottom:0;
}

/* Filtre pills */
.filter-pills .btn{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  border-radius:2px;
  border:1px solid var(--line);
  color:var(--text-muted);
  background:#fff;
  padding:.5rem 1.1rem;
}
.filter-pills .btn.active,
.filter-pills .btn:hover{
  background:var(--navy-900);
  border-color:var(--navy-900);
  color:#fff;
}

/* ---------- Galeri ---------- */
.gallery-item{
  overflow:hidden;
  cursor:pointer;
  aspect-ratio:4/3;
  border:1px solid var(--line);
  position:relative;
}
.gallery-item img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.gallery-item:hover img{ transform:scale(1.08); }
.gallery-item::after{
  content:"\f52a";
  font-family:"bootstrap-icons";
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:1.4rem;
  background:rgba(15,42,67,0);
  transition:background .25s ease;
}
.gallery-item:hover::after{ background:rgba(15,42,67,.45); }

/* ---------- İletişim ---------- */
.contact-card{
  background:var(--navy-900);
  color:#fff;
  padding:2.2rem;
}
.contact-card .ci-row{
  display:flex; gap:.9rem; align-items:flex-start;
  padding:.85rem 0;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.contact-card .ci-row:last-of-type{ border-bottom:none; }
.contact-card .ci-row i{ color:var(--accent); font-size:1.15rem; margin-top:.15rem; }
.contact-card .ci-label{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--steel-400);
  margin-bottom:.15rem;
}
.form-control, .form-select{
  border-radius:2px;
  border:1px solid var(--line);
  padding:.7rem .9rem;
  font-size:.92rem;
}
.form-control:focus, .form-select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 .2rem rgba(201,122,46,.15);
}
.form-label{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text-muted);
}
.map-frame{ border:1px solid var(--line); }
.map-frame iframe{ width:100%; height:100%; min-height:320px; display:block; }

/* ---------- CTA şeridi ---------- */
.cta-band{
  background:var(--navy-950);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:40px 40px;
}
.cta-band h2{ color:#fff; }
.cta-band p{ color:var(--steel-200); }

/* ---------- Footer ---------- */
footer.site-footer{
  background:var(--navy-950);
  color:var(--steel-200);
  padding-top:3.5rem;
}
footer.site-footer h5{
  color:#fff;
  font-size:.95rem;
  letter-spacing:.06em;
  margin-bottom:1.1rem;
}
footer.site-footer a{ color:var(--steel-400); }
footer.site-footer a:hover{ color:var(--accent); }
footer.site-footer .flink{
  display:block;
  font-size:.88rem;
  padding:.28rem 0;
  font-family:var(--font-mono);
}
footer.site-footer p{ font-size:.88rem; color:var(--steel-400); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:2.5rem;
  padding:1.1rem 0;
  font-family:var(--font-mono);
  font-size:.75rem;
  color:var(--steel-400);
}
.social-ico{
  width:36px;height:36px;
  border:1px solid rgba(255,255,255,.15);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--steel-200);
  margin-right:.4rem;
  transition:all .2s ease;
}
.social-ico:hover{ background:var(--accent); border-color:var(--accent); color:#fff; }

/* ---------- Floating WhatsApp ---------- */
.float-whatsapp{
  position:fixed;
  bottom:22px; right:22px;
  width:56px;height:56px;
  border-radius:50%;
  background:#25D366;
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;
  box-shadow:0 8px 20px rgba(0,0,0,.25);
  z-index:1040;
  transition:transform .2s ease;
}
.float-whatsapp:hover{ transform:scale(1.08); color:#fff; }

/* ---------- Lightbox modal ---------- */
.lightbox-modal .modal-content{
  background:transparent;
  border:none;
}
.lightbox-modal .modal-body{ padding:0; text-align:center; }
.lightbox-modal img{ max-height:82vh; max-width:100%; border:4px solid #fff; }
.lightbox-modal .btn-close{
  filter:invert(1);
  position:absolute;
  top:-40px; right:0;
}

/* ---------- Section paddings ---------- */
.section{ padding:4.5rem 0; }
.section-sm{ padding:3rem 0; }

@media (max-width:767.98px){
  .section{ padding:3rem 0; }
  .timeline-item{ border-left:none; border-top:1px dashed var(--line); padding-top:1.6rem; }
  .timeline-item::before{ top:0; }
  .timeline-item:first-child{ border-top:none; }
}