/* 共通デザイン設定：色・文字・余白を変えると全ページに反映されます */
:root {
  color-scheme: light;
  --color-background: #f7f6f2;
  --color-surface: #fffefa;
  --color-text: #242521;
  --color-muted: #777970;
  --color-accent: #59665b;
  --color-line: #dcdcd4;
  --font-body: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  --font-display: "Yu Mincho", "Hiragino Mincho ProN", "Times New Roman", serif;
  --space-page: clamp(1.25rem, 6vw, 6.5rem);
  --space-section: clamp(4rem, 9vw, 8.5rem);
  --content-width: 74rem;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--color-background); color: var(--color-text); font-family: var(--font-body); line-height: 1.8; }
a { color: inherit; text-underline-offset: .22em; }
.site-header { min-height: 5.25rem; padding: .8rem var(--space-page); display: flex; align-items: center; justify-content: space-between; gap: 2rem; border-bottom: 1px solid var(--color-line); background: var(--color-background); }
.brand { text-decoration: none; font-weight: 700; letter-spacing: .12em; white-space: nowrap; font-size: 1.05rem; }
.brand span { font-weight: 400; }
.brand small { margin-left: .35rem; font-size: .67rem; letter-spacing: .15em; }
.site-nav { display: flex; align-items: center; gap: clamp(.7rem, 1.8vw, 1.7rem); }
.site-nav a { color: var(--color-muted); text-decoration: none; font-size: .79rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-text); }
.menu-toggle { display: none; border: 1px solid var(--color-line); background: transparent; padding: .45rem .75rem; font: inherit; color: inherit; }
.hero { min-height: min(45rem, 78vh); padding: clamp(5rem, 12vw, 10rem) var(--space-page) 4rem; position: relative; overflow: hidden; background: #e9e8e1; }
.eyebrow { margin: 0 0 .8rem; color: var(--color-accent); font-size: .72rem; font-weight: 700; letter-spacing: .18em; }
.hero h1, .page-title h1 { margin: 0; font: 400 clamp(3.7rem, 9vw, 8rem)/1.18 var(--font-display); letter-spacing: .05em; }
.hero-copy { margin: 1.2rem 0 2.5rem; color: var(--color-muted); }
.hero-meta { display: flex; flex-wrap: wrap; gap: .7rem 2rem; font-size: .88rem; letter-spacing: .08em; }
.text-link { display: inline-flex; gap: .8rem; align-items: center; margin-top: 2rem; font-size: .88rem; text-decoration: none; border-bottom: 1px solid var(--color-text); padding-bottom: .3rem; }
.hero-mark { position: absolute; right: 8%; bottom: -21%; color: rgba(89,102,91,.08); font: 400 clamp(24rem, 56vw, 54rem)/1 var(--font-display); pointer-events: none; }
.section { padding: var(--space-section) var(--space-page); }
.countdown-section { padding: clamp(3.5rem, 7vw, 6rem) var(--space-page); text-align: center; background: var(--color-surface); border-bottom: 1px solid var(--color-line); }
.countdown-caption { margin: 0; color: var(--color-muted); font-size: .9rem; }
.countdown-display { display: flex; align-items: baseline; justify-content: center; gap: .8rem; margin: .3rem 0; font: 400 clamp(4rem, 11vw, 8rem)/1.2 var(--font-display); font-variant-numeric: tabular-nums; }
#countdown-days { display: inline-block; min-width: 3ch; will-change: transform, opacity; }
.countdown-unit { font: 600 .75rem var(--font-body); letter-spacing: .16em; color: var(--color-accent); }
.countdown-section time { font-size: .78rem; letter-spacing: .14em; color: var(--color-muted); }
.movie-dialog { width: min(92vw, 68rem); max-width: none; max-height: 92vh; padding: 0; border: 0; background: transparent; color: var(--color-text); }
.movie-dialog::backdrop { background: rgba(20, 22, 20, .82); animation: movie-backdrop-in .45s ease-out both; }
.movie-dialog-content { position: relative; padding: clamp(1.25rem, 4vw, 3rem); background: var(--color-surface); }
.movie-dialog[open] .movie-dialog-content { transform-origin: center; animation: movie-popup-in .5s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes movie-popup-in { from { opacity: 0; transform: translateY(1rem) scale(.96); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes movie-backdrop-in { from { background-color: rgba(20, 22, 20, 0); } to { background-color: rgba(20, 22, 20, .82); } }
.movie-dialog-content h2 { margin: 0 3rem 1.25rem 0; font: 400 clamp(1.5rem, 4vw, 2.5rem)/1.4 var(--font-display); }
.movie-placeholder { min-height: clamp(14rem, 52vw, 38rem); display: grid; place-items: center; padding: 2rem; background: #111; color: #fff; text-align: center; }
.movie-dialog-content video { display: block; width: 100%; max-height: 70vh; background: #111; object-fit: contain; }
.movie-dialog-close { position: absolute; top: .65rem; right: .8rem; width: 2.5rem; height: 2.5rem; border: 1px solid var(--color-line); border-radius: 50%; background: transparent; color: var(--color-text); font: 1.5rem/1 var(--font-body); cursor: pointer; }
.closing h2 { margin: 0 0 1rem; font: 400 clamp(2rem, 5vw, 3.5rem) var(--font-display); }
.section-tint { background: var(--color-surface); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.section-heading h2 { margin: 0; font: 400 clamp(2rem, 4vw, 3rem) var(--font-display); }
.section-heading .text-link { margin: 0; }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--color-line); }
.info-grid > div { display: grid; gap: .5rem; padding: 1.5rem 1rem 1.5rem 0; border-bottom: 1px solid var(--color-line); }
.info-grid span, .details dt { color: var(--color-muted); font-size: .82rem; }
.info-grid strong { font-weight: 500; }
.news-row { display: grid; grid-template-columns: 8rem 1fr 1.5rem; align-items: center; gap: 1rem; padding: 1.25rem 0; border-top: 1px solid var(--color-line); text-decoration: none; }
.news-row:last-child { border-bottom: 1px solid var(--color-line); }
.news-row time { color: var(--color-muted); font-size: .82rem; }
.closing { padding: var(--space-section) var(--space-page); text-align: center; background: #e9e8e1; }
.button { display: inline-block; margin-top: 1rem; padding: .8rem 1.5rem; border: 1px solid var(--color-text); text-decoration: none; font-size: .86rem; }
.site-footer { padding: 2rem var(--space-page); display: flex; justify-content: space-between; align-items: center; gap: 1rem; border-top: 1px solid var(--color-line); }
.site-footer p { color: var(--color-muted); font-size: .75rem; }
.page-main { width: min(100% - 2 * var(--space-page), var(--content-width)); min-height: 68vh; margin: 0 auto; padding: clamp(4rem, 9vw, 7rem) 0 var(--space-section); }
.page-title { margin-bottom: clamp(2.5rem, 6vw, 5rem); }
.page-title h1 { font-size: clamp(3rem, 7vw, 5.7rem); }
.page-title > p:last-child { color: var(--color-muted); margin: .8rem 0 0; }
.content-panel { padding: clamp(1.5rem, 5vw, 3.5rem); background: var(--color-surface); }
.details { margin: 0; }
.details > div { display: grid; grid-template-columns: minmax(8rem, 1fr) 3fr; gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid var(--color-line); }
.details dd { margin: 0; }
.details dd a { color: var(--color-accent); }
.note { margin-top: 1.5rem; color: var(--color-muted); font-size: .85rem; }
.coming-soon { min-height: 20rem; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.status-pill { display: inline-block; padding: .3rem .75rem; border: 1px solid var(--color-line); color: var(--color-accent); font-size: .7rem; letter-spacing: .15em; }
.coming-soon h2 { margin: 1.5rem 0 .4rem; font: 400 clamp(1.5rem, 4vw, 2.4rem) var(--font-display); }
.coming-soon p { margin: .25rem 0; color: var(--color-muted); }
.date-line { margin-top: 2rem !important; font-size: .8rem; letter-spacing: .12em; }
.news-list { padding-top: .5rem; padding-bottom: .5rem; }
.news-entry { display: grid; grid-template-columns: 8rem 1fr; gap: 1rem; align-items: start; padding: 1.25rem 0; border-bottom: 1px solid var(--color-line); }
.news-entry time { color: var(--color-muted); font-size: .82rem; }
.news-entry summary { cursor: pointer; }
.news-entry details p { max-width: 48rem; margin-bottom: 0; color: var(--color-muted); white-space: pre-wrap; }
.news-editor { margin-top: 2rem; }
.news-editor h2 { margin: 0; font: 400 clamp(1.7rem, 4vw, 2.4rem) var(--font-display); }
.news-editor form { display: grid; gap: .65rem; max-width: 42rem; }
.news-editor label { margin-top: .8rem; font-size: .88rem; }
.news-editor input, .news-editor textarea { width: 100%; padding: .8rem; border: 1px solid var(--color-line); border-radius: 0; background: var(--color-background); color: var(--color-text); font: inherit; }
.news-editor textarea { resize: vertical; }
.news-editor .button { width: fit-content; margin-top: 1rem; background: transparent; color: var(--color-text); cursor: pointer; }
.news-editor .note { margin: .5rem 0 0; }
.admin-link { color: var(--color-muted); font-size: .68rem; opacity: .7; text-decoration: none; }
.admin-link:hover { opacity: 1; text-decoration: underline; }
.admin-warning { padding: 1rem 1.2rem; border-left: 3px solid var(--color-accent); background: var(--color-background); color: var(--color-muted); font-size: .85rem; }
.admin-warning[hidden], [hidden] { display: none !important; }
.article time { color: var(--color-muted); font-size: .85rem; }
.article h2 { margin: 1rem 0 2rem; font: 400 clamp(1.5rem, 4vw, 2.4rem)/1.5 var(--font-display); }
.article p { max-width: 48rem; }
.back-link { margin-top: 2rem; }
.map-embed { width: 100%; height: clamp(18rem, 48vw, 32rem); margin-top: 2rem; background: #e9e8e1; }
.map-embed iframe { width: 100%; height: 100%; border: 0; }
.dresscode-main { max-width: 84rem; }
.dresscode-photo-slot { min-height: clamp(15rem, 40vw, 34rem); margin: 0 0 clamp(4rem, 8vw, 7rem); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .65rem; background: #e9e8e1; color: var(--color-muted); }
.photo-slot-label { font-size: .9rem; letter-spacing: .08em; }
.dresscode-photo-slot figcaption { font-size: .68rem; letter-spacing: .18em; }
.dresscode-title h1 { font-size: clamp(3rem, 7vw, 6rem); line-height: 1.12; }
.dresscode-title > p:last-child { font-size: 1.05rem; }
.dresscode-intro { max-width: 52rem; margin: 0 auto clamp(4rem, 8vw, 7rem); font-size: 1rem; }
.dresscode-intro p { margin: 0 0 1.1rem; }
.dresscode-guidelines { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--color-line); }
.dresscode-card { padding: 2rem clamp(1rem, 3vw, 2.5rem) 2rem 0; border-bottom: 1px solid var(--color-line); }
.dresscode-card:nth-child(odd) { border-right: 1px solid var(--color-line); }
.dresscode-card:nth-child(even) { padding-left: clamp(1rem, 3vw, 2.5rem); }
.dresscode-number { margin: 0 0 1.2rem; color: var(--color-accent); font-size: .8rem; font-weight: 700; letter-spacing: .1em; }
.dresscode-number span { margin-left: .35rem; letter-spacing: .14em; }
.dresscode-card h2 { margin: 0 0 .85rem; font: 400 clamp(1.3rem, 2.4vw, 1.8rem)/1.5 var(--font-display); }
.dresscode-card > p:last-child { margin: 0; color: var(--color-muted); font-size: .9rem; }
.dresscode-closing { padding: clamp(4rem, 8vw, 7rem) 1rem 0; text-align: center; font: 400 clamp(1.2rem, 2.8vw, 1.8rem)/1.8 var(--font-display); }
.dresscode-closing p { margin: 0 0 .7rem; }
/* カーソルを合わせた時に少し浮く動き。スマートフォンではタップ時も反応します。 */
.text-link, .button, .news-row, .award-card, .memory-card, .slider-button { transition: transform .25s ease, color .25s ease, background-color .25s ease, opacity .25s ease; }
.text-link:hover, .button:hover, .news-row:hover, .award-card:hover, .memory-card:hover { transform: translateY(-4px); }
.slider-controls { display: flex; justify-content: flex-end; gap: .6rem; margin-bottom: 1rem; }
.slider-button { width: 2.8rem; height: 2.8rem; border: 1px solid var(--color-line); border-radius: 50%; background: transparent; color: var(--color-text); font: inherit; cursor: pointer; }
.slider-button:hover { transform: translateY(-3px); background: var(--color-text); color: var(--color-surface); }
.memory-slider { overflow: hidden; padding: .25rem .25rem 1rem; touch-action: pan-y; cursor: grab; user-select: none; }
.memory-slider:active { cursor: grabbing; }
.memory-track { display: grid; grid-auto-columns: minmax(16rem, 34vw); grid-auto-flow: column; gap: 1.25rem; width: max-content; will-change: transform; }
.memory-card { min-width: 0; margin: 0; }
.memory-photo { min-height: clamp(13rem, 27vw, 23rem); display: grid; place-items: center; background: linear-gradient(135deg, #e9e8e1, #d7d8d0); color: var(--color-muted); letter-spacing: .18em; font-family: var(--font-display); }
.memory-card:nth-child(3n + 2) .memory-photo { background: linear-gradient(135deg, #dedfd8, #efeee9); }
.memory-card:nth-child(3n) .memory-photo { background: linear-gradient(135deg, #e7e5df, #d6d8d3); }
.memory-card figcaption { padding-top: .8rem; font-size: .82rem; letter-spacing: .08em; }
.memories-section > .note { margin: 1rem 0 0; }
.award-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.award-card { display: flex; gap: 1.25rem; padding: clamp(1.25rem, 3vw, 2rem); border: 1px solid var(--color-line); background: var(--color-surface); }
.award-number { color: var(--color-accent); font-size: .75rem; letter-spacing: .12em; }
.award-card h2 { margin: -.3rem 0 .45rem; font: 400 clamp(1.35rem, 2.5vw, 1.8rem)/1.4 var(--font-display); }
.award-card p { margin: 0; color: var(--color-muted); font-size: .9rem; }
.award-card-wide { grid-column: 1 / -1; }
.performance-list { display: grid; gap: .55rem; margin: 1rem 0 0; padding-left: 1.4rem; color: var(--color-muted); font-size: .9rem; }
@media (max-width: 800px) {
  .site-header { position: relative; flex-wrap: wrap; }
  .menu-toggle { display: block; }
  .site-nav { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: .5rem 0; }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: .7rem 0; border-top: 1px solid var(--color-line); }
  .hero { min-height: 39rem; }
  .info-grid { grid-template-columns: 1fr; }
  .info-grid > div { padding: 1rem 0; }
  .memory-track { grid-auto-columns: 82vw; }
  .award-list { grid-template-columns: 1fr; }
  .award-card-wide { grid-column: auto; }
  .dresscode-card { padding-top: 1.5rem; padding-bottom: 1.5rem; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: clamp(3.5rem, 17vw, 5rem); }
  .section-heading { align-items: start; flex-direction: column; }
  .news-row { grid-template-columns: 1fr 1.5rem; gap: .25rem .75rem; }
  .news-row time { grid-column: 1 / -1; }
  .news-entry { grid-template-columns: 1fr; gap: .25rem; }
  .details > div { grid-template-columns: 1fr; gap: .25rem; }
  .dresscode-guidelines { grid-template-columns: 1fr; }
  .dresscode-card, .dresscode-card:nth-child(even) { padding: 1.5rem 0; border-right: 0; }
  .desktop-break { display: none; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}