@charset "utf-8";
/* カタドリ事前登録ページ。世界観は採用サムネ正本と同じ深藍×金（光のペン先）。 */
:root {
  color-scheme: dark;
  --navy-950: #0a1120;
  --navy-900: #0f1a2e;
  --navy-800: #16233d;
  --navy-700: #22314f;
  --ivory: #f4eedc;
  --ivory-muted: #c9c3b1;
  --gold: #d6ab4f;
  --gold-soft: #ecd08a;
  --focus: #ffe7a3;
  --font-gothic: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-gothic);
  font-size: 18px;
  line-height: 1.9;
  color: var(--ivory);
  background: radial-gradient(120% 80% at 50% 0%, #1a2a49 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  overflow-wrap: anywhere;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--gold-soft); text-underline-offset: .18em; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}
.shell { width: min(100% - 40px, 680px); margin-inline: auto; padding: 40px 0 72px; }
.hero { text-align: center; }
.hero-label {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--gold);
  border-radius: 999px;
  color: var(--gold-soft);
  font-size: 14px;
  letter-spacing: .12em;
}
.hero h1 {
  margin: 18px 0 6px;
  font-size: clamp(38px, 8vw, 56px);
  letter-spacing: .08em;
  line-height: 1.2;
  color: var(--ivory);
}
.hero .subtitle {
  margin: 0 0 28px;
  font-size: clamp(18px, 3.6vw, 22px);
  color: var(--gold-soft);
  letter-spacing: .04em;
}
.hero-image {
  border-radius: 14px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .45), 0 0 0 1px rgba(214, 171, 79, .35);
  margin-inline: auto;
}
.card {
  margin-top: 40px;
  padding: clamp(24px, 5vw, 40px);
  border-radius: 16px;
  background: rgba(22, 35, 61, .82);
  border: 1px solid rgba(214, 171, 79, .22);
}
.card h2 {
  margin: 0 0 18px;
  font-size: clamp(21px, 4.4vw, 26px);
  line-height: 1.4;
  color: var(--gold-soft);
}
.card p { margin: 0 0 1.2em; }
.card p:last-child { margin-bottom: 0; }
.quote {
  margin: 0 0 1.4em;
  font-size: clamp(19px, 4vw, 22px);
  font-weight: 700;
  line-height: 1.7;
}
.audience { margin: 0; padding: 0; list-style: none; }
.audience li { position: relative; padding-left: 1.4em; margin-bottom: .5em; }
.audience li::before { content: "・"; position: absolute; left: 0; color: var(--gold); }
.register-form { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin: 22px 0 14px; }
.register-form label { flex-basis: 100%; font-weight: 700; }
.register-form input[type="email"] {
  flex: 1 1 260px;
  min-height: 52px;
  padding: 10px 16px;
  border: 1.5px solid rgba(214, 171, 79, .5);
  border-radius: 10px;
  font: inherit;
  color: var(--navy-950);
  background: var(--ivory);
}
.register-form button {
  flex: 1 1 100%;
  min-height: 56px;
  padding: 12px 24px;
  border: 0;
  border-radius: 10px;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .04em;
  cursor: pointer;
  color: var(--navy-950);
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  box-shadow: 0 6px 0 #8a6a25;
}
.register-form button:active { transform: translateY(3px); box-shadow: 0 3px 0 #8a6a25; }
#register-status { font-weight: 700; min-height: 1.6em; margin: 0 0 8px; color: var(--gold-soft); }
.note { font-size: 15px; color: var(--ivory-muted); }
.site-footer {
  margin-top: 48px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ivory-muted);
  text-align: center;
}
@media (max-width: 480px) {
  body { font-size: 17px; }
  .shell { padding-top: 28px; }
  /* 狭い画面では句点改行の<br>を外し、語の途中で折り返さないよう自然に流す */
  .card p br { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .register-form button:active { transform: none; }
}