/* ===== RESET ===== */
    * {
      margin: 0; padding: 0; box-sizing: border-box;
      font-family: 'Poppins', sans-serif;
    }

    body {
      transition: background 0.3s, color 0.3s;
    }

    body.light { background: #f8f8f8; color: #222; }
    body.dark { background: #0d0d1a; color: #eee; }

    .container { max-width: 1200px; margin: auto; padding: 2rem; }

    /* ===== HERO ===== */
    .hero {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      padding: 0rem 1rem;
    }

    .version {
      background: #ff2d75; color: #fff;
      padding: 5px 15px; border-radius: 20px;
      font-size: 14px; display: inline-block;
      margin-bottom: 1rem;
    }

    h1 { font-size: 2.5rem; line-height: 1.4; margin-bottom: 1.5rem; }
    h1 span { color: #ff2d75; }

    /* Features */
    .features {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 12px; margin-bottom: 2rem;
    }

    .feature {
      background: #fff;
      padding: 10px 15px;
      border-radius: 25px;
      font-size: 16px;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    body.dark .feature { background: #1c1c2d; }

    /* QR */
    .qr-box { text-align: center; margin-top: 20px; }
    .qr-box img { width: 150px; border-radius: 12px; margin-bottom: 10px; }

    /* Phone Preview */
    .phone-preview img {
      max-width: 280px;
      border-radius: 25px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    }

    /* ===== PRIVACY SECTION ===== */
    .privacy {
      padding: 4rem 1rem;
      background: #fff;
      color: #222;
    }
    body.dark .privacy {
      background: #1c1c2d;
      color: #eee;
    }
    .privacy h2 {
      color: #ff2d75;
      font-size: 2rem;
      margin-bottom: 1rem;
    }
    .privacy h3 {
      margin-top: 2rem;
      color: #ff2d75;
    }
    .privacy p, .privacy li {
      margin: 10px 0;
      line-height: 1.6;
    }
    .privacy ul { padding-left: 20px; }

    /* ===== THEME TOGGLE ===== */
    .theme-toggle {
      position: fixed; bottom: 20px; right: 20px;
      display: flex; align-items: center; gap: 10px;
    }
    .switch {
      position: relative; display: inline-block;
      width: 50px; height: 25px;
    }
    .switch input { display: none; }
    .slider {
      position: absolute; cursor: pointer; top: 0; left: 0;
      right: 0; bottom: 0; background: #ccc;
      transition: .4s; border-radius: 25px;
    }
    .slider:before {
      position: absolute; content: "";
      height: 18px; width: 18px;
      left: 4px; bottom: 4px;
      background: white; transition: .4s;
      border-radius: 50%;
    }
    input:checked + .slider { background: #ff2d75; }
    input:checked + .slider:before { transform: translateX(24px); }