body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f5f7fa;
}

/* SECTION */
.course-details {
    padding: 40px 20px;
}

/* CONTAINER */
.course-container {
    max-width: 1100px;
    margin: auto;
    display: flex;
    gap: 40px;
    align-items: center;
}

/* IMAGE */
.course-image img {
    width: 100%;
    max-width: 450px;
    border-radius: 10px;
}

/* INFO */
.course-info {
    flex: 1;
}

.course-info h1 {
    margin-bottom: 10px;
    color: #333;
}

.code {
    font-weight: bold;
    color: #007BFF;
}

.department,
.duration {
    margin: 10px 0;
}

.description {
    margin-top: 20px;
}

.apply-btn {
    margin-top: 20px;
    padding: 12px 25px;
    border: none;
    background: #007BFF;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

.apply-btn:hover {
    background: #0056b3;
}

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

/* Mobile */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    flex-direction: column;
  }

  .nav-menu.active {
    display: flex;
  }

  .hamburger {
    display: block;
  }
}

/* TABLET */
@media (max-width: 992px) {
    .course-container {
        flex-direction: column;
        text-align: center;
    }
}

/* MOBILE */
@media (max-width: 600px) {
    .course-info h1 {
        font-size: 22px;
    }

    .apply-btn {
        width: 100%;
    }
}