:root {
  color-scheme: light;
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  color: #17324d;
  background:
    radial-gradient(circle at top left, #fff4bf 0, #fff4bf 16%, transparent 17%),
    radial-gradient(circle at top right, #c8f1ff 0, #c8f1ff 14%, transparent 15%),
    linear-gradient(180deg, #f7fbff 0%, #eef7ff 100%);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  line-height: 1.7;
}

.site-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(760px, 100%);
  padding: 32px 24px;
  border: 4px solid #17324d;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 18px 0 #c8dff5;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 8px 14px;
  border-radius: 999px;
  background: #17324d;
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 4.8vw, 3.4rem);
  line-height: 1.2;
}

p {
  margin: 0 0 12px;
  font-size: clamp(1rem, 2.5vw, 1.15rem);
}

.lead {
  font-size: clamp(1.1rem, 2.8vw, 1.35rem);
  font-weight: 700;
}

.link-grid {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.link-card,
.back-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 72px;
  padding: 18px 20px;
  border: 3px solid #17324d;
  border-radius: 22px;
  color: #17324d;
  background: #ffffff;
  font-size: 1.1rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.link-card:hover,
.link-card:focus-visible,
.back-link:hover,
.back-link:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 0 rgba(23, 50, 77, 0.12);
  background: #f7fbff;
}

.link-card.primary {
  background: #ffdf61;
}

.link-card.secondary {
  background: #c8f1ff;
}

.info-panel {
  margin: 24px 0;
  padding: 22px 20px;
  border: 3px solid #17324d;
  border-radius: 24px;
  background: #f7fbff;
}

.info-title {
  margin: 0 0 14px;
  font-size: 1.3rem;
}

.info-lines {
  margin: 0;
  padding: 0;
  list-style: none;
}

.info-lines li {
  margin: 0;
  padding: 10px 0;
  font-size: clamp(1.05rem, 2.5vw, 1.2rem);
  border-top: 2px dashed #9abedb;
}

.info-lines li:first-child {
  border-top: 0;
  padding-top: 0;
}

.label {
  display: inline-block;
  min-width: 9.5em;
  font-weight: 800;
}

.value {
  font-weight: 700;
  color: #0d4f8b;
  word-break: break-word;
}

.helper {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 20px;
  background: #fff7d1;
}

.helper h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.helper ul {
  margin: 0;
  padding-left: 1.25rem;
}

.helper li + li {
  margin-top: 8px;
}

.status {
  margin: 0 0 14px;
  padding: 14px 16px;
  border-radius: 18px;
  background: #edf5ff;
  font-weight: 700;
}

.status[data-state="error"] {
  background: #ffe7e5;
  color: #9a241d;
}

.status[data-state="ready"] {
  background: #e5f9ec;
  color: #196c34;
}

.footer-actions {
  margin-top: 24px;
}

@media (max-width: 640px) {
  .card {
    padding: 24px 18px;
    border-radius: 24px;
  }

  .label {
    min-width: auto;
    display: block;
    margin-bottom: 4px;
  }
}