* { box-sizing: border-box; }
html { font-size: 16px; }
body { font-size: 1rem; }
.teaser-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background-color: #1c1c1f;
  background-image: linear-gradient(rgb(28 28 31 / 93%), rgb(28 28 31 / 93%)), url('../images/teaser-background.webp');
  background-repeat: repeat;
  background-size: auto, 180px 180px;
  color: #d6b36b;
}
.teaser-page > * { flex-shrink: 0; }
.teaser-page > header, .teaser-page > main { width: 100%; }
.teaser-page a, .teaser__actions .teaser__sponsor {
  transition: color .25s ease, background-color .25s ease, border-color .25s ease;
}
.teaser {
  padding: clamp(20px, 3svh, 32px) 20px;
  text-align: center;
}
.teaser__visual { width: min(620px, calc((100svh - 250px) * .9565)); max-width: calc(100vw - 4rem); margin: 0 auto; }
.teaser__visual img { display: block; width: 100%; height: auto; }
.teaser__details {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: clamp(20px, 3svh, 32px);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
}
.teaser__date { margin: 0; font-size: clamp(14px, 3.8vw, 32px); font-weight: 700; letter-spacing: .02em; }
.teaser__date span { display: inline-block; font-size: .75em; }
.teaser__venue { margin: 0; font-size: clamp(12px, 3vw, 22px); line-height: 1.8; }
.teaser__venue a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .3em; }
.teaser__venue a:hover { color: #f4dc9d; }
.teaser__venue a:focus-visible { outline: 2px solid currentColor; outline-offset: 8px; }
.teaser__sponsor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  min-height: 48px;
  margin-top: 28px;
  padding: 12px 28px;
  border: 1px solid #d6b36b;
  color: #d6b36b;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .12em;
  text-decoration: none;
}
.teaser__sponsor:hover { background: #d6b36b; color: #000; }
.teaser__actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; max-width: 400px; margin: 28px auto 0; }
.teaser__actions .teaser__sponsor { margin-top: 0; padding-inline: clamp(8px, 3vw, 28px); font-size: clamp(12px, 4vw, 16px); white-space: nowrap; background-color: #b52c2f; }
.teaser__actions .teaser__sponsor:hover { background-color: #922326; color: #f4dc9d; }
.teaser-news { max-width: 1000px; margin: 56px auto 0; padding-top: 32px; border-top: 1px solid #493c24; font-family: sans-serif; }
.teaser-news h2 { margin: 0 0 24px; font-size: 15px; letter-spacing: .16em; }
.news-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin: 0; padding: 0; list-style: none; text-align: left; }
.news-list li { min-width: 0; }
.news-list .news-card { display: flex; flex-direction: column; height: 100%; overflow: hidden; border: 1px solid #493c24; border-radius: 12px; background: #0b0906; color: #e1d9c9; text-decoration: none; }
.news-card__image { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: contain; background: #000; }
.news-card__body { padding: 20px; }
.news-list time { display: block; color: #a89e89; font-size: 12px; }
.news-card__title { margin: 10px 0 0; font-size: 16px; line-height: 1.8; overflow-wrap: anywhere; }
.news-list .news-card:hover { color: #f4dc9d; background-color: #211a10; border-color: #d6b36b; }
.news-list .news-card:focus-visible { outline: 2px solid #d6b36b; outline-offset: 5px; }
.news-all { display: inline-block; margin-top: 24px; color: #d6b36b; font-size: 13px; text-underline-offset: 4px; }
.news-empty { color: #a89e89; font-size: 14px; line-height: 1.9; text-align: center; }
.teaser-news a:focus-visible { outline: 2px solid #d6b36b; outline-offset: 5px; }
.news-post, .news-index { max-width: 880px; }
.sponsor-main.news-post { max-width: 800px; }
.news-post__card {
  padding: clamp(20px, 5vw, 48px);
  border: 1px solid #493c24;
  border-radius: 12px;
  background: #0b0906;
  box-shadow: 0 16px 48px rgb(0 0 0 / 25%);
}
.news-post__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-bottom: 20px; color: #a89e89; font-size: 13px; }
.news-post__date, .news-post__author { margin: 0; }
.news-post__author { display: inline-flex; align-items: center; gap: 8px; }
.news-post__avatar { display: block; width: 32px; height: 32px; flex-shrink: 0; border-radius: 50%; object-fit: cover; }
.sponsor-main.news-post h1 { text-align: left; font-family: sans-serif; font-size: clamp(26px, 4vw, 40px); line-height: 1.6; overflow-wrap: anywhere; }
.news-post__body img { max-width: 100%; height: auto; }
.news-post__photos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 24px 0; }
.news-post__photos figure { margin: 0; }
.news-post__photos img { display: block; width: 100%; border-radius: 8px; }
.news-post__photos figcaption { margin-top: 8px; font-size: 12px; text-align: center; }
@media (max-width: 480px) {
  .news-post__photos { grid-template-columns: 1fr; }
}
.news-post__thumbnail { width: 100%; aspect-ratio: 1200 / 630; overflow: hidden; margin-bottom: 32px; border: 1px solid #493c24; border-radius: 12px; background: #000; }
.news-post__thumbnail img { display: block; width: 100%; height: 100%; object-fit: cover; }
.news-post__body pre { overflow-x: auto; padding: 20px; background: #17140e; }
@media (max-width: 900px) {
  .news-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .news-list { grid-template-columns: 1fr; }
}
.teaser__sponsor:focus-visible, .teaser-footer a:focus-visible { outline: 2px solid #d6b36b; outline-offset: 5px; }
.teaser-footer { margin-top: auto; padding: 28px 24px 32px; color: #a89e89; text-align: center; }
.teaser-footer p { max-width: 880px; margin: 0 auto; font-family: sans-serif; font-size: 11px; line-height: 1.9; }
.teaser-footer a { color: inherit; text-underline-offset: 3px; }
.teaser-footer a:hover { color: #d6b36b; }
@media (prefers-reduced-motion: reduce) {
  .teaser-page a, .teaser__actions .teaser__sponsor { transition: none; }
}

.sponsor-page { color: #e1d9c9; font-family: sans-serif; }
.sponsor-page a { color: #d6b36b; text-underline-offset: 4px; }
.sponsor-page a:hover { color: #f4dc9d; }
.sponsor-page a:focus-visible, .sponsor-table:focus-visible { outline: 2px solid #d6b36b; outline-offset: 5px; }
.sponsor-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; max-width: 1160px; margin: 0 auto; padding: 28px 24px; font-size: 12px; }
.sponsor-header__brand { font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 20px; font-weight: 700; text-decoration: none; }
.sponsor-header__brand img { display: block; width: clamp(150px, 18vw, 200px); height: auto; }
.sponsor-main { max-width: 1100px; margin: 0 auto; padding: 40px 24px 64px; }
.sponsor-main h1 { margin: 0 0 56px; padding-bottom: 36px; border-bottom: 1px solid #493c24; color: #d6b36b; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(28px, 5vw, 48px); text-align: center; }
.sponsor-body { font-size: 1rem; line-height: 1.9; overflow-wrap: anywhere; }
.sponsor-body :is(h2, h3, h4, h5, h6) { font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; font-weight: 700; line-height: 1.6; }
.sponsor-body h2 { margin: 56px 0 24px; padding-left: 16px; border-left: 2px solid #d6b36b; color: #d6b36b; font-size: clamp(23px, 3vw, 30px); }
.sponsor-body h3 { margin: 32px 0 16px; color: #d6b36b; font-size: 20px; }
.sponsor-body h4 { margin: 28px 0 12px; font-size: 18px; }
.sponsor-body h5, .sponsor-body h6 { margin: 24px 0 12px; font-size: 16px; }
.sponsor-body ul { padding-left: 1.5em; }
.sponsor-table { overflow-x: auto; margin: 24px 0; border: 1px solid #493c24; }
.sponsor-table table { width: 100%; border-collapse: collapse; font-size: 1rem; }
.sponsor-table th, .sponsor-table td { padding: 16px 20px; text-align: left; vertical-align: top; }
.sponsor-table th { background: #201b12; color: #d6b36b; white-space: nowrap; }
.sponsor-table td { border-top: 1px solid #493c24; }
.sponsor-table td:first-child { min-width: 130px; }
.sponsor-table table:has(th:nth-child(6)) { min-width: 980px; }
.sponsor-table td ul { margin: 0; }
.sponsor-body tbody tr { background: rgb(0 0 0 / 20%); }
.sponsor-table tbody tr:nth-child(even) { background: #0e0d0a; }
.sponsor-body .teaser__sponsor { margin-top: 8px; }
.sponsor-page .teaser__sponsor:hover { color: #000; }
.sponsor-back { display: inline-block; margin-top: 48px; font-size: 14px; }
@media (max-width: 600px) {
  .sponsor-header__brand { font-size: 16px; }
  .sponsor-header, .sponsor-main { padding-right: 20px; padding-left: 20px; }
  .sponsor-table th, .sponsor-table td { padding: 12px; }
}

.error-page {
  margin: 10px auto;
  max-width: 600px;
  text-align: center;

  h1 {
    margin: 30px 0;
    font-size: 4em;
    line-height: 1;
    letter-spacing: -1px;
  }
}