:root { color-scheme: light; --ink: #203b45; --muted: #52676d; --accent: #007d8d; --line: #d4e2e5; }
* { box-sizing: border-box; }
body { margin: 0; background: #f3f7f8; color: var(--ink); font: 15px/1.75 -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; }
a { color: var(--accent); text-underline-offset: 4px; }
a:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid #bc6400; outline-offset: 4px; }
[hidden] { display: none !important; }
.visually-hidden, .skip-link:not(:focus) { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link:focus { position: fixed; top: 8px; left: 8px; padding: 12px; background: white; z-index: 10; }
.site-header { background: linear-gradient(110deg,#00a6bd,#00a398 55%,#2e7ebd); }
.header-inner { max-width: 1060px; margin: auto; padding: 14px 28px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.header-brand { display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 18px; color: white; text-decoration: none; font-size: 14px; font-weight: 700; }
.brand img { width: 86px; height: auto; }
.header-brand > img { width: 136px; height: auto; background: white; padding: 6px; border-radius: 3px; }
main { max-width: 1060px; margin: auto; padding: 24px 28px 40px; }
.purchased-link { display: block; min-height: 44px; padding: 8px 12px; border: 1px solid var(--line); background: white; text-align: center; font-size: 13px; text-decoration: none; border-radius: 4px; }
.intro { padding: 24px 0 20px; }
.eyebrow { font-size: 12px; letter-spacing: .1em; color: var(--accent); font-weight: 700; margin: 0; }
h1 { font-size: 32px; line-height: 1.4; margin: 6px 0 8px; }
.intro p:last-child { margin: 0; color: var(--muted); }
.page-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }
.page-nav a { padding: 10px 8px; min-height: 48px; text-align: center; border: 1px solid var(--line); border-radius: 5px; background: white; text-decoration: none; font-weight: 700; }
.page-nav a[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: white; }
.selector { padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: white; }
h2 { font-size: 21px; margin: 0 0 14px; }
fieldset { margin: 0 0 18px; padding: 0; border: 0; min-width: 0; }
legend { font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.group-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.group-options label { display: flex; align-items: center; gap: 10px; min-height: 54px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 5px; cursor: pointer; }
.group-options label:has(input:checked) { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); background: #eff9f9; }
.group-options input { width: 18px; height: 18px; accent-color: var(--accent); flex-shrink: 0; }
.group-options small { display: block; color: var(--muted); font-size: 12px; }
.day-filter { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-weight: 700; }
select { font: inherit; font-size: 16px; min-height: 48px; min-width: 160px; border: 1px solid var(--line); padding: 8px 12px; border-radius: 4px; background: white; color: var(--ink); }
.result-count { font-size: 13px; color: var(--muted); margin: 16px 0 8px; }
.ticket-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.ticket-card { background: white; border: 1px solid var(--line); border-top: 4px solid var(--accent); padding: 20px; border-radius: 8px; }
.ticket-card h3 { font-size: 28px; margin: 0 0 4px; line-height: 1.4; }
.group-label { margin: 0 0 6px; font-size: 13px; font-weight: 700; color: var(--accent); }
.validity { color: var(--muted); font-size: 12px; margin: 0 0 14px; }
.prices { margin: 0; }
.prices > div { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.prices dt { font-size: 13px; }
.prices dd { font-size: 24px; font-weight: 700; margin: 0; white-space: nowrap; }
.ticket-link { display: block; padding: 10px 8px; min-height: 48px; margin-top: 16px; border-radius: 5px; background: var(--accent); color: white; text-align: center; text-decoration: none; font-weight: 700; }
.ticket-link:hover { background: #005d6b; }
.sale-deadline { font-size: 11px; color: var(--muted); margin: 10px 0 0; }
.ticket-notes { margin: 18px 0 0; padding: 16px; background: #e9f2f3; border-radius: 5px; font-size: 13px; }
.ticket-notes p { margin: 4px 0; }
.usage { margin-top: 32px; }
.usage details { padding: 15px 0; border-top: 1px solid var(--line); }
.usage summary { cursor: pointer; font-weight: 700; min-height: 30px; }
.usage p { margin: 10px 0; font-size: 13px; }
.end-message { padding: 20px; border: 1px solid var(--line); background: white; }
.cg-guidance { border-top: 1px solid var(--line); }
@media (max-width: 760px) { .ticket-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } .header-inner { padding: 12px 20px; } }
@media (max-width: 480px) { main { padding: 16px 16px 28px; } h1 { font-size: 26px; } .intro { padding: 20px 0 16px; } .intro p:last-child { font-size: 13px; } .page-nav { font-size: 13px; margin-bottom: 16px; } .selector { padding: 14px; } h2 { font-size: 19px; } .group-options { gap: 8px; } .group-options label { padding: 8px; gap: 6px; font-size: 13px; } .group-options input { margin: 0; } .group-options small { font-size: 11px; } .day-filter { font-size: 14px; } select { min-width: 145px; } .ticket-grid { grid-template-columns: 1fr; gap: 12px; } .ticket-card { padding: 16px; } .prices { display: flex; gap: 28px; } .prices > div { display: block; } .prices dd { font-size: 27px; } .ticket-link { margin-top: 12px; } }
@media (max-width: 360px) {
  .group-options { grid-template-columns: 1fr; }
  .group-options label { min-height: 54px; gap: 10px; }
}

.language-nav { display: flex; gap: 4px; flex-shrink: 0; }
.language-nav a { padding: 8px 10px; min-height: 44px; color: white; border-radius: 4px; text-decoration: none; }
.language-nav a[aria-current="page"] { background: white; color: var(--accent); font-weight: 700; }
@media (max-width: 760px) {
  .header-inner { padding: 8px 16px; gap: 12px; }
  .header-brand { flex-direction: column; align-items: flex-start; gap: 4px; }
  .brand { gap: 6px; font-size: 10px; line-height: 1.5; }
  .brand img { width: 44px; }
  .header-brand > img { width: 100px; padding: 3px 5px; }
  .language-nav a { display: flex; align-items: center; padding: 4px 8px; font-size: 12px; }
}
@media (max-width: 360px) { .header-inner { padding-inline: 12px; gap: 8px; } }

.donation-jump { margin: -8px 0 20px; text-align: right; font-size: 13px; }
.donation-jump a { display: inline-flex; align-items: center; min-height: 44px; }
.donation { margin-top: 32px; padding: 20px; background: white; border: 1px solid var(--line); border-radius: 8px; scroll-margin-top: 16px; }
.donation p { font-size: 13px; margin: 8px 0; }
.donation-link { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; margin-top: 8px; padding: 8px 16px; border: 1px solid var(--accent); border-radius: 4px; font-weight: 700; text-decoration: none; }
@media (max-width: 480px) { .donation { padding: 16px; } .donation-link { display: flex; text-align: center; } }