/* ============================================================
   DAMLA SİNEKLİK & YAPI — Shared Design System
   Navy #0A1F44 · Electric Blue #1A6BFF · White
   Barlow Condensed (display) · Nunito (body)
   ============================================================ */

:root {
  --navy: #0A1F44;
  --navy-700: #122a55;
  --navy-600: #1b3868;
  --blue: #1A6BFF;
  --blue-600: #0d56dd;
  --blue-tint: #eaf1ff;
  --ink: #0d1730;
  --slate: #5b6580;
  --line: #e4e8f0;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --white: #ffffff;
  --green: #25D366;
  --green-600: #1ebe5a;

  --maxw: 1200px;
  --r: 4px;
  --r-lg: 8px;
  --shadow: 0 2px 14px rgba(10, 31, 68, 0.06);
  --shadow-lg: 0 18px 50px rgba(10, 31, 68, 0.16);

  --display: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --body: 'Nunito', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.4px;
  margin: 0;
  color: var(--navy);
  text-transform: uppercase;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

.eyebrow {
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 600;
  font-size: 16px;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 3px;
  background: var(--blue);
  display: inline-block;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 15px 28px;
  border: 2px solid transparent;
  border-radius: var(--r);
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--blue); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(26,107,255,.3); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; transform: translateY(-2px); }
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { background: var(--blue-600); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(26,107,255,.35); }
.btn-whatsapp { background: var(--green); color: #fff; }
.btn-whatsapp:hover { background: var(--green-600); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(37,211,102,.35); }
.btn-ghost-light { background: rgba(255,255,255,.08); color:#fff; border-color: rgba(255,255,255,.35); }
.btn-ghost-light:hover { background:#fff; color: var(--navy); }

/* ---------- Navbar ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo { display: flex; align-items: baseline; gap: 2px; }
.logo .mark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 34px;
  letter-spacing: 1.5px;
  color: var(--navy);
  text-transform: uppercase;
  line-height: 1;
}
.logo .mark b { color: var(--blue); }
.logo .sub {
  font-family: var(--display);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--slate);
  text-transform: uppercase;
  margin-left: 8px;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-family: var(--display);
  text-transform: uppercase;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--navy);
  padding: 8px 16px;
  border-radius: var(--r);
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--blue); }
.nav-links a.active { color: var(--blue); }
.nav-links a.active::after {
  content:""; display:block; height:3px; background: var(--blue); margin-top: 4px;
}
.nav-cta {
  margin-left: 10px;
  display:inline-flex; align-items:center; gap:8px;
  background: var(--navy); color:#fff !important;
  padding: 11px 18px !important; border-radius: var(--r);
  font-size: 17px !important;
}
.nav-cta:hover { background: var(--blue); }
.nav-cta svg { width:16px; height:16px; }
.hamburger {
  display: none;
  width: 46px; height: 46px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--r);
  cursor: pointer;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.hamburger span { width: 22px; height: 2.5px; background: var(--navy); display:block; transition: .25s; }
.hamburger.open span:nth-child(1){ transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2){ opacity:0; }
.hamburger.open span:nth-child(3){ transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Section scaffolding ---------- */
.section { padding: 92px 0; }
.section-head { max-width: 720px; margin-bottom: 50px; }
.section-head.center { margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2 { font-size: 52px; margin: 16px 0 14px; }
.section-head p { color: var(--slate); font-size: 19px; }
.bg-alt { background: var(--bg-alt); }

/* ---------- Product cards grid ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 34px 30px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content:""; position:absolute; top:0; left:0; width:100%; height:4px;
  background: var(--blue); transform: scaleX(0); transform-origin: left;
  transition: transform .25s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--navy); box-shadow: var(--shadow-lg); }
.card:hover::before { transform: scaleX(1); }
.card .icon {
  width: 60px; height: 60px; border-radius: var(--r);
  background: var(--blue-tint); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
}
.card .icon svg { width: 32px; height: 32px; }
.card h3 { font-size: 27px; margin-bottom: 10px; }
.card p { color: var(--slate); font-size: 16.5px; }

/* ---------- Why us ---------- */
.feature { text-align: center; display:flex; flex-direction:column; align-items:center; }
.feature .ficon {
  width: 64px; height: 64px; border-radius: var(--r);
  background: var(--navy); color: #fff;
  display:flex; align-items:center; justify-content:center; margin-bottom: 20px;
}
.feature p { max-width: 300px; }
.feature .ficon svg { width: 32px; height: 32px; }
.feature h3 { font-size: 26px; margin-bottom: 8px; }
.feature p { color: var(--slate); }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--navy);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-banner .wrap { position: relative; z-index: 2; padding-top: 80px; padding-bottom: 80px; }
.cta-banner h2 { color:#fff; font-size: 48px; max-width: 640px; }
.cta-banner .lead { color: rgba(255,255,255,.72); font-size: 19px; margin-top: 14px; }
.cta-phone {
  font-family: var(--display); font-weight: 700; font-size: 56px; color:#fff;
  letter-spacing: 1px; display:inline-flex; align-items:center; gap:16px; margin: 8px 0 4px;
}
.cta-phone svg { width: 44px; height: 44px; color: var(--blue); }
.cta-actions { display:flex; gap:14px; flex-wrap: wrap; margin-top: 26px; }
.cta-grid { display:grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }

/* ---------- Footer ---------- */
.footer { background: #060f24; color: rgba(255,255,255,.7); padding: 64px 0 30px; }
.footer h4 { color:#fff; font-size: 20px; letter-spacing: 1.5px; margin-bottom: 18px; }
.footer-grid { display:grid; grid-template-columns: 1.6fr 1fr 1.2fr; gap: 48px; }
.footer .logo .mark { color:#fff; }
.footer p { font-size: 15.5px; margin-top: 14px; max-width: 320px; line-height: 1.7; }
.footer a { color: rgba(255,255,255,.7); transition: color .15s; }
.footer a:hover { color: var(--blue); }
.footer li { margin-bottom: 10px; }
.footer .addr { font-style: normal; line-height: 1.8; font-size: 15.5px; }
.footer .social-row { display:flex; gap:10px; margin-top:18px; }
.footer .social-row a { width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center; background:rgba(255,255,255,.08); color:#fff; transition:background .15s, transform .15s; }
.footer .social-row a:hover { background:var(--blue); color:#fff; transform:translateY(-3px); }
.footer .social-row svg { width:20px; height:20px; }

/* ---------- Lightbox (galeri zoom) ---------- */
.lightbox { position:fixed; inset:0; background:rgba(7,15,36,.92); display:flex; align-items:center; justify-content:center; z-index:9999; opacity:0; visibility:hidden; transition:opacity .2s; padding:24px; cursor:zoom-out; }
.lightbox.open { opacity:1; visibility:visible; }
.lightbox img { max-width:95vw; max-height:90vh; border-radius:8px; box-shadow:0 30px 80px rgba(0,0,0,.5); transform:scale(.96); transition:transform .2s; }
.lightbox.open img { transform:scale(1); }
.lightbox-close { position:absolute; top:18px; right:24px; width:46px; height:46px; border:0; border-radius:50%; background:rgba(255,255,255,.12); color:#fff; font-size:26px; line-height:1; cursor:pointer; display:flex; align-items:center; justify-content:center; }
.lightbox-close:hover { background:rgba(255,255,255,.25); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 48px; padding-top: 24px;
  display:flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 14px; color: rgba(255,255,255,.5);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  body { font-size: 16px; }
  .hamburger { display: flex; }
  .nav-links {
    position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    gap: 0; padding: 8px 18px 18px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 8px; font-size: 20px; border-bottom: 1px solid var(--line); }
  .nav-links a.active::after { display:none; }
  .nav-cta { margin: 10px 0 0; justify-content:center; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 40px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-banner h2 { font-size: 36px; }
  .cta-phone { font-size: 40px; }
  .cta-phone svg { width: 32px; height: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .wrap { padding: 0 20px; }
}