body {
  margin: 0;
  font-family: "Cairo", sans-serif;
  background: #fafafa;
  color: #333;
  overflow-x: hidden;
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 51, 102, 0.9);
  color: white;
  padding: 10px 5%;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1000;
  transition: background 0.3s ease;
}

header.scrolled {
  background: #003366;
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-wrap: wrap;
}

.logo {
  width: 80px;
  height: 80px;
  margin-left: 15px;
  border-radius: 10px;
  background: white;
  padding: 5px;
}

.subtitle {
  margin-top: -10px;
  font-size: 1.1em;
  color: #d0e4ff;
}

nav {
  margin-top: 10px;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
}
nav a:hover {
  color: #ffd700;
}

#hero {
  position: relative;
  background: url("images/buildings.jpg") center/cover no-repeat;
  color: white;
  height: 90vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-overlay {
  background: rgba(0, 0, 0, 0.55);
  padding: 40px;
  border-radius: 10px;
  text-align: center;
  animation: fadeIn 1.5s ease;
}

section {
  padding: 80px 20px;
  max-width: 1100px;
  margin: auto;
}

h2 {
  color: #003366;
  border-right: 5px solid #ffd700;
  padding-right: 10px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.product {
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  text-align: center;
  padding: 15px;
  transition: transform 0.3s;
}

.product:hover {
  transform: scale(1.03);
}

.product img {
  width: 100%;
  border-radius: 8px;
  height: 180px;
  object-fit: cover;
}

/* حركات سلسة */
.fade {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.9s ease-out;
}

.fade.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-up {
  opacity: 0;
  transform: translateY(60px);
  transition: all 0.9s ease-out;
}

.slide-up.visible {
  opacity: 1;
  transform: translateY(0);
}

footer {
  text-align: center;
  background: #003366;
  color: white;
  padding: 15px;
  font-size: 0.9em;
}

/* زر واتساب عائم */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 25px;
  right: 25px;
  background-color: #25d366;
  color: white;
  border-radius: 50%;
  text-align: center;
  font-size: 30px;
  z-index: 100;
  box-shadow: 0 3px 5px rgba(0, 0, 0, 0.3);
  line-height: 60px;
  text-decoration: none;
  transition: transform 0.3s;
}
.whatsapp-float:ho