:root {
  --navy: #1B3358;
  --teal: #2AB3AE;
  --coral: #E5534B;
  --yellow: #F2A516;
  --ink: #1f2a3a;
  --muted: #5b6676;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --line: #e4e8ee;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

h1, h2 { color: var(--navy); line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }

/* Üst bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand img { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: 22px; font-size: .95rem; font-weight: 600; }
.nav a { text-decoration: none; color: var(--navy); }
.nav a:hover { color: var(--teal); }
.nav-cta { background: var(--navy); color: #fff !important; padding: 8px 16px; border-radius: 999px; }
.nav-cta:hover { background: var(--teal); }

/* Giriş */
.hero { position: relative; overflow: hidden; padding: 88px 0 96px; background: linear-gradient(160deg, #fff 0%, #eef8f8 100%); }
.hero-inner { position: relative; z-index: 1; }
.hero-inner > *, .about > * { max-width: 760px; }
.eyebrow { margin: 0 0 12px; color: var(--teal); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: .85rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
.hl { color: var(--coral); }
.lead { font-size: 1.15rem; color: var(--muted); margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-dots span { position: absolute; border-radius: 50%; opacity: .18; }
.hero-dots .d1 { width: 260px; height: 260px; background: var(--teal); right: -60px; top: -40px; }
.hero-dots .d2 { width: 140px; height: 140px; background: var(--yellow); right: 160px; bottom: -50px; }
.hero-dots .d3 { width: 80px; height: 80px; background: var(--coral); right: 80px; top: 220px; }
.hero-dots .d4 { width: 40px; height: 40px; background: var(--navy); right: 300px; top: 70px; }

/* Düğmeler */
.btn {
  display: inline-block; text-decoration: none; font-weight: 700;
  padding: 13px 24px; border-radius: 999px; transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--coral); color: #fff; }
.btn-primary:hover { background: #d0443c; }
.btn-ghost { border: 2px solid var(--navy); color: var(--navy); }
.btn-ghost:hover { background: var(--navy); color: #fff; }
.btn-light { background: #fff; color: var(--navy); white-space: nowrap; }

/* Bölümler */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }

.about p { font-size: 1.1rem; color: var(--muted); margin: 0; }

.groups {
  list-style: none; margin: 8px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px;
}
.groups li {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; font-weight: 600; color: var(--navy);
}
.dot { width: 12px; height: 12px; border-radius: 50%; flex: none; }
.c1 { background: var(--teal); }
.c2 { background: var(--coral); }
.c3 { background: var(--yellow); }
.c4 { background: var(--navy); }

.catalog {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: var(--navy); color: #fff; border-radius: 20px; padding: 40px;
  background-image: radial-gradient(circle at 95% 10%, rgba(42, 179, 174, .45) 0, transparent 40%);
}
.catalog h2 { color: #fff; }
.catalog p { margin: 0; color: #d6deea; max-width: 560px; }

.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-list { margin: 0 0 28px; }
.contact-list div { padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-list dt { font-size: .8rem; font-weight: 700; color: var(--teal); text-transform: uppercase; letter-spacing: .06em; }
.contact-list dd { margin: 4px 0 0; font-size: 1.05rem; }
.contact-list a { text-decoration: none; color: var(--navy); font-weight: 600; }
.contact-list a:hover { color: var(--coral); }
.map { border-radius: 20px; overflow: hidden; border: 1px solid var(--line); background: #e9edf2; aspect-ratio: 4 / 3; }
.map iframe { width: 100%; height: 100%; border: 0; display: block; }

.footer { background: var(--navy); color: #c5cfdd; font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 22px 20px; }

/* Mobil */
@media (max-width: 760px) {
  .topbar-inner { height: 60px; }
  .brand img { height: 38px; }
  .nav { gap: 14px; font-size: .85rem; }
  .nav a:not(.nav-cta) { display: none; }
  .hero { padding: 56px 0 64px; }
  .section { padding: 52px 0; }
  .catalog { flex-direction: column; align-items: flex-start; padding: 28px; }
  .contact { grid-template-columns: 1fr; }
  .groups { grid-template-columns: 1fr 1fr; gap: 10px; }
  .groups li { padding: 14px; font-size: .92rem; }
}