<style>
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  body {
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(to right, #f5f7fa, #c3cfe2);
    color: #1f2937;
    scroll-behavior: smooth;
  }

  header {
    background: #0f172a;
    color: white;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  }

  header h1 {
    font-size: 2.8rem;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
  }

  nav {
    display: flex;
    justify-content: center;
    background: #1e293b;
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 999;
  }

  nav a {
    color: #f1f5f9;
    text-decoration: none;
    margin: 0 1.5rem;
    font-weight: 600;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  nav a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: #38bdf8;
    transition: width 0.3s ease;
  }

  nav a:hover::after {
    width: 100%;
  }

  .section {
    padding: 3rem 2rem;
    display: none;
  }

  #home {
    text-align: center;
  }

  .highlight-box {
    background: white;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    padding: 2rem;
    border-radius: 20px;
    max-width: 900px;
    margin: 3rem auto 0;
    line-height: 1.6;
  }

  #products h2, #testimoni h2 {
    text-align: center;
    font-size: 2.2rem;
    color: #0f172a;
    margin-bottom: 0.5rem;
  }

  #products p, #testimoni p {
    text-align: center;
    color: #475569;
    max-width: 650px;
    margin: 0 auto 2rem;
  }

  .product-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
  }

  .product {
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    width: 280px;
    overflow: hidden;
    transform: translateY(40px);
    opacity: 0;
    transition: all 0.6s ease;
    position: relative;
    margin-bottom: 2rem;
  }

  .product.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .product img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }

  .product .badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: #ef4444;
    color: white;
    padding: 4px 8px;
    font-size: 0.75rem;
    border-radius: 6px;
    font-weight: bold;
    z-index: 2;
  }

  .product-content {
    padding: 1.8rem 1rem 1rem 1rem;
  }

  .product-content h3 {
    font-size: 1.2rem;
    color: #0f172a;
    margin-bottom: 0.5rem;
  }

  .product-content p {
    font-size: 0.9rem;
    color: #475569;
    min-height: 48px;
  }

  .product-content .price {
    margin-top: 0.8rem;
    font-weight: 700;
    color: #10b981;
  }

  .product-content .old {
    text-decoration: line-through;
    font-size: 0.9rem;
    color: #9ca3af;
    margin-left: 8px;
    font-weight: 500;
  }

  .buy-btn {
    display: inline-block;
    margin-top: 1rem;
    background: #0ea5e9;
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.3s;
  }

  .buy-btn:hover {
    background: #0284c7;
  }

  .buy-buttons {
    display: flex;
    gap: 10px;
    margin-top: 1rem;
    justify-content: center;
  }

  .buy-buttons a {
    background-color: #10b981;
    padding: 0.6rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
    width: 40px;
    height: 40px;
  }

  .buy-buttons a.tele {
    background-color: #2aabee;
  }

  .buy-buttons img {
    width: 16px;
    height: 16px;
  }

  .buy-buttons a:hover {
    opacity: 0.85;
  }

  footer {
    background: #0f172a;
    color: #cbd5e1;
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
    font-size: 0.9rem;
  }

  .typewriter-loop {
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid #0ea5e9;
    font-size: 1.8rem;
    font-weight: bold;
    width: 0;
    animation: typing 4s steps(30, end) infinite, blink 0.75s step-end infinite;
  }

  @keyframes typing {
    0% {
      width: 0;
    }
    50% {
      width: 100%;
    }
    100% {
      width: 0;
    }
  }

  @keyframes blink {
    from, to {
      border-color: transparent;
    }
    50% {
      border-color: #0ea5e9;
    }
  }

  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 1s ease-out forwards;
  }

  @keyframes fadeIn {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (max-width: 768px) {
    header h1 {
      font-size: 1.8rem;
    }

    .product-grid {
      flex-direction: column;
      align-items: center;
    }

    .highlight-box {
      padding: 1.5rem;
    }

    nav a {
      margin: 0 1rem;
      font-size: 0.9rem;
    }

    .typewriter-loop {
      font-size: 1.3rem;
    }
  }
</style>