:root {
  --brand: #2563eb;
  --brand-dark: #1e40af;
  --accent: #facc15;
  --ink: #0f172a;
  --muted: #475569;
  --bg: linear-gradient(135deg, #f3f8ff 0%, #ffffff 100%);
}

/* Genel */
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--ink);
  margin: 0;
  padding: 0;
}

/* Üst Bar ve Menü */
.topbar {
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, .05);
}

.navbar {
  background: #ffffffcc;
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, .06);
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.05rem;
}

.navbar-brand .brand-accent {
  color: var(--brand);
}

/* Butonlar */
.btn-brand {
  background: var(--brand);
  border: none;
  color: #fff;
  transition: .3s;
}

.btn-brand:hover {
  background: var(--brand-dark);
}

.btn-outline-brand {
  border: 1px solid var(--brand);
  color: var(--brand);
  transition: .3s;
}

.btn-outline-brand:hover {
  background: var(--brand);
  color: #fff;
}

/* Offcanvas Menü */
.offcanvas {
  background: linear-gradient(180deg, #eaf2ff 0%, #ffffff 100%);
}

.offcanvas-header {
  background: linear-gradient(135deg, #2563eb, #60a5fa);
  color: #fff;
}

.menu-list a {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .9rem 1.25rem;
  font-weight: 600;
  color: #0b1220;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 0, 0, .03);
  transition: .25s;
}

.menu-list a:hover {
  background: rgba(37, 99, 235, .08);
  color: var(--brand);
  transform: translateX(4px);
}

/* İçerik alanı */
.hero {
  padding: 70px 0;
  background: linear-gradient(145deg, #2563eb, #1e40af);
  color: #fff;
  text-align: center;
}

.hero .lead {
  color: #e0e7ff;
}

/* Görseller */
.image-fit {
  width: 100%;
  aspect-ratio: 4/5; /* 1080x1350 oranı */
  object-fit: cover;
  border-radius: 1rem;
  display: block;
}

.ratio-4x5 {
  position: relative;
  width: 100%;
  padding-top: 125%;
}

.ratio-4x5 img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 1rem;
}

/* Kart ve Cam efekt */
.glass {
  background: rgba(255, 255, 255, .9);
  border-radius: 1rem;
  box-shadow: 0 10px 40px rgba(30, 58, 138, .2);
}

.card {
  border: 1px solid rgba(37, 99, 235, .14);
  border-radius: 1rem;
}

/* Sabit Butonlar */
.float-btn {
  position: fixed;
  right: 20px;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.6rem;
  z-index: 1055;
  transition: .3s;
}

.float-btn.wa {
  bottom: 22px;
  background: #22c55e;
}

.float-btn.tel {
  bottom: 85px;
  background: #2563eb;
}

.float-btn:hover {
  transform: scale(1.05);
}

/* Footer */
footer {
  font-size: .9rem;
  color: #64748b;
  line-height: 1.6;
}