/* Header (reusable across pages) */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* Logo */
.logo-container {
  display: flex;
  align-items: center;
}

.logo {
  height: 55px;
  width: auto;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

/* Nav (desktop) */
.nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav a {
  display: inline-block;
  text-decoration: none;
  color: #1d3557;
  font-weight: 600;
  padding: 0.25rem 0;
  transition: color 0.3s ease;
}

.nav a:hover,
.nav a.active {
  color: #e63946;
}

/* Hamburger button (hidden on desktop) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
}

/* Mobile styles */
@media (max-width: 768px) {
  .menu-toggle {
    display: block; /* show hamburger */
  }

  .nav {
    display: none; /* hide nav by default */
    position: absolute;
    top: 70px; /* below header */
    right: 1rem;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    border-radius: 8px;
    max-height: 70vh; /* scroll if too tall */
    overflow-y: auto; /* enable vertical scroll */
    animation: fadeIn 0.3s ease; /* smooth */
    width: 200px; /* optional fixed width */
  }

  .nav ul {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .nav.open {
    display: block; /* show when active */
  }
}

/* Small fade-in effect */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}