/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: url('../images/pic2.jpg') no-repeat center center fixed;
    background-size: cover;
    min-height: 100vh;
    position: relative;
    z-index: 0;
  }
  
  /* Blur + Overlay Gelap */
  body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(3px);
    z-index: -1;
  }
  
  /* HEADER */
  header {
    background-color: #ffffff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1000;
  }
  
  header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  header h1 {
    font-size: 2.2rem;
    font-weight: bold;
  }
  .inpo {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
    z-index: 999;
    display: none;
}

#kotak {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    max-width: 400px;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

.close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 24px;
    color: white;
    text-decoration: none;
}

.pesan-link {
    display: inline-block;
    margin-top: 20px;
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
}
.pesan-link:hover {
    background-color: #0056b3;
}


  /* MENU TOGGLE & NAVIGATION */
  .menu-toggle {
    font-size: 1.8rem;
    cursor: pointer;
    display: none;
  }
  
  .nav-menu {
    display: flex;
    gap: 1rem;
  }
  
  .nav-menu a {
    text-decoration: none;
    color: #1f2937;
    font-weight: 500;
    padding: 8px 12px;
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  
  .nav-menu a:hover {
    background-color: #facc15;
    color: white;
    border-radius: 5px;
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    .menu-toggle {
      display: block;
    }
  
    .nav-menu {
      display: none;
      flex-direction: column;
      position: absolute;
      top: 100%;
      right: 20px;
      background: white;
      padding: 1rem;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
      z-index: 999;
    }
  
    .nav-menu.show {
      display: flex;
    }
  
    .nav-menu a {
      color: #1f2937;
      padding: 10px 0;
    }
  
    .nav-menu a:hover {
      background-color: #facc15;
      color: white;
    }
  
    header .container {
      flex-direction: column;
      align-items: flex-start;
      position: relative;
    }
  }
  
  /* HERO */
  .hero {
    text-align: center;
    color: white;
    padding: 100px 20px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
  }
  
  .hero h2 {
    font-size: 3.5rem;
    margin-bottom: 15px;
  }
  
  .hero p {
    font-size: 1.3rem;
    margin-bottom: 25px;
  }
  
  .btn.masuk {
    background-color: #388e3c;
    color: white;
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: background-color 0.3s ease;
    text-decoration: none;
  }
  
  .btn.masuk:hover {
    background-color: #2e7d32;
  }
  
  /* ABOUT */
  #about {
    padding: 60px 20px;
    background-color: rgba(255, 255, 255, 0.95);
    text-align: center;
  }
  
  #about h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
  }
  
  #about p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
  }
  
  /* COURSES */
  .courses {
    padding: 60px 20px;
    background-color: rgba(255, 255, 255, 0.9);
  }
  
  .courses h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
  }
  
  .course-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .course {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    flex: 1 1 30%;
    text-align: center;
    transition: transform 0.3s ease;
  }
  
  .course:hover {
    transform: translateY(-5px);
  }
  
  .course img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
  }
  
  .course h3 {
    font-size: 1.6rem;
    margin-bottom: 10px;
  }
  
  .course p {
    font-size: 1rem;
    margin-bottom: 15px;
  }
  
  .course .btn {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
  }
  
  .course .btn:hover {
    background-color: #388e3c;
  }
  
  /* TESTIMONI */
  .ulasan {
    background-color: rgba(245, 245, 245, 0.95);
    padding: 60px 20px;
    text-align: center;
  }
  
  .ulasan h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
  }
  
  .ulasan .ulasan {
    max-width: 700px;
    margin: 0 auto 30px;
    font-style: italic;
    color: #555;
  }
  
  .ulasan h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 10px;
    color: #333;
  }
  
  /* FOOTER */
  footer {
    background-color: rgba(76, 175, 80, 0.95);
    color: white;
    padding: 25px 20px;
    text-align: center;
  }
  
  footer a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  footer a:hover {
    text-decoration: underline;
  }