/* Centrage global */
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #f2f2f2;
  font-family: sans-serif;
}

/* Conteneur externe */
.mobile-wrapper {
  padding: 20px;
}

/* Cadre type smartphone */
.mobile-frame {
  width: 393px;
  height: 852px;
  border-radius: 36px;
  padding: 14px;
  background: #000;
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
  box-sizing: border-box;
}

/* Iframe */
.mobile-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 20px;
  background: #fff;
}