/* ---------- Tablet (up to 1024px) ---------- */
@media (max-width: 1024px) {
  /* Navbar */
  .navbar {
    padding: 12px 25px;
  }

  .nav-links {
    gap: 18px;
  }

  .auth-buttons .signup {
    padding: 6px 12px;
  }

  /* Header */
  header {
    padding: 80px 25px;
  }

  header h1 {
    font-size: 45px;
  }

  .subtitle {
    font-size: 18px;
  }

  .price {
    font-size: 20px;
  }

  /* Highlight section */
  .course_highlight {
    max-width: 90%;
  }

  .highlight-box {
    gap: 20px;
  }

  /* Trainer cards */
  .trainer-container {
    gap: 20px;
  }

  .trainer-card {
    width: 240px;
  }

  /* Success section */
  .success-container {
    gap: 20px;
  }

  /* Course box */
  .course-box {
    flex-direction: column;
    padding: 30px;
    text-align: center;
  }

  .left-box, .right-box {
    width: 100%;
  }

  /* Dates box */
  .dates-box {
    flex-direction: column;
    gap: 20px;
  }
}

/* ------ Mobile (up to 768px) ------ */
@media (max-width: 768px) {
  /* Navbar */
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 15px 20px;
  }

  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .auth-buttons {
    width: 100%;
    justify-content: flex-start;
  }

  /* Header */
  header {
    padding: 60px 15px;
  }

  header h1 {
    font-size: 32px;
    line-height: 1.3;
  }

  .subtitle {
    font-size: 16px;
  }

  .btn {
    font-size: 14px;
    padding: 10px 18px;
  }

  /* Highlight boxes */
  .highlight-box {
    flex-direction: column;
    align-items: center;
  }

  .H-box {
    width: 100%;
    max-width: 320px;
  }

  .c-highlight {
    font-size: 1.8rem;
  }

  /* Trainer cards */
  .trainer-container {
    flex-direction: column;
    align-items: center;
  }

  .trainer-card {
    width: 85%;
    max-width: 300px;
  }

  .trainers-section h1 {
    font-size: 1.8rem;
  }

  /* Success section */
  .success-section h2 {
    font-size: 24px;
  }

  .success-container {
    flex-direction: column;
    align-items: center;
  }

  .success-card {
    width: 90%;
    max-width: 300px;
  }

  /* Modules */
  .content-box {
    flex-direction: column;
    text-align: left;
  }

  .left, .right {
    flex: 1 1 100%;
  }

  /* Course box */
  .course-box {
    flex-direction: column;
    padding: 25px;
    align-items: center;
  }

  .left-box, .right-box {
    width: 100%;
  }

  .left-box h2, .right-box h2 {
    text-align: center;
  }

  /* Enroll */
  .enroll-section {
    width: 90%;
    padding: 25px;
  }

  .enroll-container {
    flex-direction: column;
    align-items: center;
  }

  .enroll-card {
    width: 90%;
    max-width: 300px;
  }

  /* Dates section */
  .dates-box {
    flex-direction: column;
    padding: 20px;
  }

  .dates-section h2 {
    font-size: 22px;
  }

  .left p, .right p {
    font-size: 14px;
  }

  /* Footer */
  footer {
    flex-direction: column;
    text-align: center;
    gap: 10px;
    padding: 20px;
  }
}

/* ------ Extra Small (up to 480px) -------*/
@media (max-width: 480px) {
  header h1 {
    font-size: 26px;
  }

  .subtitle {
    font-size: 14px;
  }

  .H-box {
    padding: 20px 15px;
  }

  .highlight-title {
    font-size: 1.1rem;
  }

  .trainer-card {
    width: 95%;
  }

  .success-card {
    width: 95%;
  }

  .btn {
    font-size: 13px;
  }

  .dates-box {
    width: 100%;
  }
}