html {
      scroll-behavior: smooth;
    }
    body {
      background-color: #111;
      color: #fff;
      font-family: IRANSans, sans-serif;
      text-align: center;
      padding: 60px 20px;
    }
    .fade-in {
      opacity: 0;
      transform: translateY(20px);
      animation: fadeInUp 1s ease forwards;
    }
    .fade-in.delay-1 { animation-delay: 0.3s; }
    .fade-in.delay-2 { animation-delay: 0.6s; }
    .fade-in.delay-3 { animation-delay: 0.9s; }
    .fade-in.delay-4 { animation-delay: 1.2s; }

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

    h1 {
      font-size: 2rem;
      margin-bottom: 20px;
    }
    p {
      font-size: 1.1rem;
      max-width: 600px;
      margin: 0 auto 30px;
      line-height: 1.8;
    }
    a.button {
      display: inline-block;
      background-color: #ff004f;
      color: #fff;
      padding: 15px 30px;
      border-radius: 12px;
      text-decoration: none;
      font-size: 1.1rem;
      transition: background 0.3s;
      margin-bottom: 10px;
    }
    a.button:hover {
      background-color: #e60045;
    }
    .trust-text {
      font-size: 0.9rem;
      color: #aaa;
      margin-top: 10px;
    }
    .highlight {
      color: #ff004f;
      font-weight: bold;
    }

    /* Testimonials */
    .testimonial-slider {
      max-width: 600px;
      margin: 40px auto;
      position: relative;
      height: 120px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .testimonial-viewport {
      overflow: hidden;
      width: 100%;
      max-width: 600px;
      margin: 0 auto;
    }
    .testimonial-track {
      display: flex;
      transition: transform 0.5s ease;
      /* width removed */
    }
    .testimonial {
      flex: 0 0 100%;
      font-size: 0.95rem;
      color: #ccc;
      font-style: italic;
      padding: 0 20px;
      box-sizing: border-box;
    }
    .testimonial-author {
      display: block;
      margin-top: 8px;
      font-style: normal;
      color: #888;
      font-size: 0.9rem;
    }

    .arrow-btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background-color: rgba(255, 255, 255, 0.1);
      border: none;
      color: #fff;
      font-size: 1.5rem;
      padding: 8px 12px;
      border-radius: 8px;
      cursor: pointer;
      z-index: 10;
      user-select: none;
    }
    .arrow-left {
      left: -40px;
    }
    .arrow-right {
      right: -40px;
    }

    .landing-image {
      max-width: 100%;
      height: auto;
      border-radius: 16px;
      box-shadow: 0 0 20px rgba(255, 0, 79, 0.3);
      transition: transform 0.4s ease;
      margin-top: 40px;
    }
    .landing-image:hover {
      transform: scale(1.03);
    }

    @media (max-width: 600px) {
  .arrow-left {
    left: 10px;
  }
  .arrow-right {
    right: 10px;
  }
  .arrow-btn {
    font-size: 1.2rem;
  }
}