main {
    padding-bottom: 100px;
}

.page-content {
  margin: 0 auto;
  width: 100%;
  max-width: 1440px;
  padding: 0 20px;
}

.warning-message {
  color: red !important;
}

.upper-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 40px 100px;
}

.upper-section img {
  cursor: pointer;
}

.upper-section span {
  display: flex;
  gap: 4px;
}

.upper-section span,
p {
  color: #29abe2;
  font-size: 19px;
}

h1 {
  text-align: center;
  font-weight: bold;
  color: #2a3647;
  margin-bottom: 40px;
}

.middle-section p,
h2 {
  color: #2a3647;
}

.middle-section p {
    text-align: justify;
}

.img-mobile {
  display: none;
}

.middle-section h2 {
  font-size: 24px;
  font-weight: 200;
  margin-bottom: 20px;
}

.middle-section {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}

.txt-photo {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
}

.main-btn {
  cursor: pointer;
  background-color: #29abe2;
  border: none;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 16px;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.main-btn:hover {
  background-color: #2a3647;
}

.warning {
  background-color: #ffd2d285;
  padding: 8px 16px;
  border-radius: 10px;
}

footer {
  display: flex;
  justify-content: center;
  gap: 24px;
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translate(-50%);
  width: 100%;
  background-color: #f6f7f8;
  padding: 20px 0;
  margin: 0 auto;
}

footer a {
  color: #a8a8a8;
}

footer a:hover {
  color: #29abe2;
}

/* Media queries */

@media (max-width: 850px) {
  .upper-section {
    margin: 40px;
  }

  .img-mobile {
    display: block;
    margin: 0 auto;
  }

  .img-pc {
    display: none;
  }

  .subtext {
    margin-bottom: 40px;
  }
}

@media (max-width: 450px) {
  .upper-section {
    margin: 20px 0;
  }

  .img-mobile {
    width: 250px;
    height: 250px;
  }

  .upper-section span,
  p {
    font-size: 16px;
  }
}