* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background-color: #061a3b;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Yu Gothic UI", sans-serif;
  color: #fff8e8;
  background:
    linear-gradient(
      180deg,
      rgba(3, 12, 31, 0.28) 0%,
      rgba(3, 12, 31, 0.56) 42%,
      rgba(3, 12, 31, 0.88) 100%
    ),
    url("./background_image.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  background-attachment: fixed;
}

.page {
  width: 100%;
  min-height: 100vh;
  padding: 56px 20px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.support-card {
  width: min(760px, 100%);
  margin-top: 42vh;
  padding: 34px 30px;
  border-radius: 28px;
  background: rgba(8, 18, 40, 0.76);
  border: 1px solid rgba(255, 248, 232, 0.22);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0 0 8px;
  color: rgba(255, 248, 232, 0.72);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-align: center;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.25;
  text-align: center;
  letter-spacing: 0.04em;
}

.lead {
  margin: 0 0 30px;
  color: rgba(255, 248, 232, 0.86);
  text-align: left;
}

section {
  margin-top: 28px;
}

h2 {
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 248, 232, 0.18);
  font-size: 20px;
}

p {
  margin: 0;
  line-height: 1.9;
  font-size: 15.5px;
}

a {
  color: #ffe8ad;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.date {
  margin-top: 32px;
  color: rgba(255, 248, 232, 0.68);
  font-size: 14px;
  text-align: right;
}

.sp-only {
  display: none;
}

@media (max-width: 640px) {
  body {
    background-size: auto 100vh;
    background-position: center top;
    background-attachment: scroll;
  }

  .page {
    padding: 32px 16px;
  }

  .support-card {
    margin-top: 56vh;
    padding: 26px 20px;
    border-radius: 24px;
  }

  .sp-only {
    display: inline;
  }

  p {
    font-size: 14.5px;
  }
}