/* Basic reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* RTL layout */
body {
  direction: rtl;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #333;
}

/* Header */
header {
  background-color: #004080;
  color: #fff;
  padding: 1rem;
  text-align: center;
}

/* Navigation */
nav {
  background-color: #0066cc;
}
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
}
nav li {
  margin: 0 1rem;
}
nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

/* Slider */
.slider {
  position: relative;
  overflow: hidden;
}
.slider img {
  width: 100%;
  display: block;
}

/* Slider arrows */
.slider .prev,
.slider .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: #fff;
  padding: 0.5rem;
  cursor: pointer;
}
.slider .prev { left: 10px; }
.slider .next { right: 10px; }

/* Main content */
main {
  padding: 2rem;
}

/* Footer */
footer {
  background-color: #004080;
  color: #fff;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
  }
  nav li {
    margin: 0.5rem 0;
  }
}