/* Reset & Fonts */
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #fff;
      background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
      overflow-x: hidden;
    }
    header {
      position: fixed;
      width: 100%;
      top: 0;
      left: 0;
      background: rgba(0,0,0,0.6);
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1rem 2rem;
      z-index: 1000;
    }
    header h1 {
      font-size: 1.5rem;
      font-weight: bold;
      color: #00ffe7;
    }
    nav a {
      color: #fff;
      text-decoration: none;
      margin-left: 1.5rem;
      font-weight: 500;
      transition: color .3s;
    }
    nav a:hover {
      color: #00ffe7;
    }

    /* Hero Section */
    .hero {
      height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      padding: 0 2rem;
    }
    .hero h2 {
      font-size: 3rem;
      margin-bottom: 1rem;
      animation: fadeInDown 1.2s ease forwards;
    }
    .hero p {
      font-size: 1.2rem;
      margin-bottom: 2rem;
      color: #ddd;
      animation: fadeInUp 1.2s ease forwards;
    }
    .hero button {
      background: #00ffe7;
      color: #000;
      border: none;
      padding: 1rem 2rem;
      font-size: 1rem;
      border-radius: 30px;
      cursor: pointer;
      transition: background .3s;
      animation: fadeInUp 1.5s ease forwards;
    }
    .hero button:hover {
      background: #00c6a7;
    }

    /* Features */
    .features {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
      padding: 5rem 2rem;
      background: #111;
    }
    .feature {
      background: rgba(255,255,255,0.05);
      padding: 2rem;
      border-radius: 15px;
      text-align: center;
      transition: transform .3s, background .3s;
    }
    .feature:hover {
      transform: translateY(-10px);
      background: rgba(0,255,231,0.1);
    }
    .feature img {
      width: 80px;
      margin-bottom: 1rem;
    }
    .feature h3 {
      margin-bottom: 0.5rem;
      color: #00ffe7;
    }
    .feature p {
      font-size: 0.95rem;
      color: #bbb;
    }

    /* Footer */
    footer {
      background: #0b0b0b;
      text-align: center;
      padding: 2rem;
      color: #888;
      font-size: 0.9rem;
    }

    /* Animations */
    @keyframes fadeInDown {
      from { opacity: 0; transform: translateY(-30px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(30px); }
      to { opacity: 1; transform: translateY(0); }
    }