/* === Base Reset === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* === Global Styles === */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f6f9;
  color: #222;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* === Header === */
.main-header {
  background: linear-gradient(135deg, #0d47a1, #00e0ff);
  color: #fff;
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
}

.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-size: 1.4rem;
  font-weight: 600;
  color: #fff;
}

/* === Navigation === */
nav {
  position: relative;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav ul li a {
  color: #fff;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s ease-in-out;
}

nav ul li a:hover {
  color: #e0e0e0;
  text-decoration: underline;
}

.hamburger {
  display: none;
  font-size: 24px;
  color: white;
  cursor: pointer;
}

/* === Responsive Navigation === */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  nav ul {
    display: none;
    position: absolute;
    right: 0;
    top: 40px;
    background: #0d47a1;
    flex-direction: column;
    width: 200px;
    padding: 10px 0;
    border-radius: 6px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    z-index: 1000;
  }

  nav ul.active {
    display: flex;
  }

  nav ul li {
    text-align: right;
    padding: 10px 20px;
  }

  nav ul li a {
    display: block;
    width: 100%;
  }
}