*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN',
    'Hiragino Sans', Meiryo, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: #333333;
  background-color: #EFF6F9;
  min-height: 100vh;
  min-height: 100dvh;
}

.maintenance {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
}

.maintenance__card {
  width: 100%;
  max-width: 720px;
  background-color: #FFFFFF;
  border-radius: 5px;
  overflow: hidden;
  padding: 56px;
  max-height: 371px;
  border: 1px solid #E1EBEB;
}

.maintenance__logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.maintenance__logo img {
  height: 36px;
  width: auto;
}

.maintenance__content {
  text-align: center;
  padding: 48px 0;
}

.maintenance__title {
  font-size: 20px;
  font-weight: 500;
  line-height: 30px;
  color: #101828;
  margin-bottom: 8px;
}

.maintenance__message {
  font-size: 18px;
  line-height: 24px;
  color: #4A5565;
  margin-bottom: 1px;
}

.maintenance__info {
  font-size: 16px;
  line-height: 24px;
  color: #4A5565;
}

.maintenance__link {
  color: #00ABFF;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.maintenance__link:hover {
  opacity: 0.8;
}

.maintenance__footer {
  border-top: 1px solid #E5E7EB;
  padding-top: 21px;
}

.maintenance__contact {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.maintenance__contact-text {
  font-size: 14px;
  line-height: 20px;
  color: #4A5565;
}

.maintenance__contact-text a {
  margin-left: 8px;
  color: #0092B8;
}

@media (max-width: 640px) {
  .maintenance {
    padding: 16px;
  }

  .maintenance__card {
    padding: 32px 24px;
    max-height: none;
  }

  .maintenance__logo img {
    height: 30px;
  }

  .maintenance__content {
    padding: 32px 0;
  }

  .maintenance__title {
    font-size: 18px;
    line-height: 28px;
  }

  .maintenance__message {
    font-size: 16px;
    line-height: 22px;
  }

  .maintenance__info {
    font-size: 14px;
    line-height: 20px;
  }

  .maintenance__footer {
    padding-top: 16px;
  }

  .maintenance__contact {
    gap: 6px;
  }

  .maintenance__contact-text {
    font-size: 13px;
    line-height: 18px;
  }
}