/* さかさ川楽市 — 色はIGと同じ（朱・墨・金・生成り） */
:root{
  --red:#c8282d; --red-d:#9e1d22; --ink:#1b1b1b; --gold:#d9a441; --paper:#f7f0e3; --paper-2:#efe4cf;
  --muted:#5b544b; --line:rgba(27,27,27,.14);
  --display:"Dela Gothic One",system-ui,sans-serif;
  --body:"Noto Sans JP",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.9;letter-spacing:.03em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.small{font-size:13px;color:var(--muted);line-height:1.8}
.center{text-align:center}

/* 墨と朱の帯 */
.band{height:10px;background:repeating-linear-gradient(90deg,var(--ink) 0 28px,var(--red) 28px 56px)}
.band--top{position:fixed;top:0;left:0;right:0;z-index:60;height:6px}

/* ヘッダー */
.header{position:fixed;top:6px;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:10px 24px;transition:background .3s,box-shadow .3s}
.header.is-solid{background:rgba(247,240,227,.94);backdrop-filter:blur(8px);box-shadow:0 1px 0 var(--line)}
.header__logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-size:20px;color:#fff;transition:color .3s}
.header__logo img{width:auto;height:40px}
.header.is-solid .header__logo{color:var(--ink)}
.header__nav{display:flex;gap:28px}
.header__nav a{text-decoration:none;font-weight:700;font-size:14px;color:#fff;position:relative;transition:color .3s}
.header.is-solid .header__nav a{color:var(--ink)}
.header__nav a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--red);transform:scaleX(0);transition:transform .25s}
.header__nav a:hover::after{transform:scaleX(1)}
.header__menu{display:none;width:44px;height:44px;border:0;background:var(--ink);border-radius:50%;cursor:pointer;position:relative}
.header__menu span{position:absolute;left:13px;right:13px;height:2px;background:#fff;transition:transform .3s}
.header__menu span:first-child{top:18px}.header__menu span:last-child{top:25px}
.header__menu[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.header__menu[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* 右端の固定ボタン（縦書き） */
.side-cta{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;gap:6px}
.side-cta__btn{writing-mode:vertical-rl;text-decoration:none;background:var(--ink);color:#fff;font-weight:900;font-size:14px;letter-spacing:.2em;padding:18px 12px;border-radius:10px 0 0 10px;transition:padding .2s,background .2s}
.side-cta__btn--red{background:var(--red)}
.side-cta__btn:hover{padding-right:18px}

/* ヒーロー */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;background:var(--ink);color:#fff}
.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .7s ease,transform 6s linear;transform:scale(1.06)}
.hero__video.is-on{opacity:1;transform:scale(1)}
.hero__shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,10,8,.82) 0%,rgba(15,10,8,.45) 55%,rgba(15,10,8,.2) 100%),linear-gradient(0deg,rgba(15,10,8,.6),transparent 40%)}
.hero__inner{position:relative;z-index:2;padding:120px 24px 90px max(24px,calc((100vw - 1120px)/2 + 24px));width:100%}
.hero__place{display:inline-block;font-weight:700;font-size:14px;letter-spacing:.2em;border:1px solid rgba(255,255,255,.6);padding:4px 14px;border-radius:999px;margin:0 0 18px}
.hero__title{font-family:var(--display);font-weight:400;margin:0;line-height:1;font-size:clamp(64px,13vw,168px);letter-spacing:.02em;display:flex;flex-direction:column}
.hero__title span:last-child{color:var(--red);text-shadow:0 0 0 #fff;-webkit-text-stroke:0}
.hero__catch{font-weight:900;font-size:clamp(20px,2.6vw,30px);line-height:1.5;margin:22px 0 32px}
.hero__next{display:inline-flex;align-items:stretch;background:var(--paper);color:var(--ink);border-radius:14px;overflow:hidden;text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.35);transition:transform .2s}
.hero__next:hover{transform:translateY(-3px)}
.hero__next-label{background:var(--red);color:#fff;font-weight:900;font-size:13px;padding:14px 14px;writing-mode:vertical-rl;letter-spacing:.2em;display:flex;align-items:center;justify-content:center}
.hero__next-body{padding:12px 22px 14px}
.hero__next-date{font-family:var(--display);font-size:34px;line-height:1.1}
.hero__next-date small{font-family:var(--body);font-weight:900;font-size:14px;margin-left:4px}
.hero__next-theme{font-weight:900;font-size:15px;color:var(--red)}
.hero__mark{position:absolute;right:max(60px,calc((100vw - 1120px)/2));bottom:70px;z-index:2;width:clamp(90px,12vw,150px);opacity:.95;animation:float 5s ease-in-out infinite}
.hero__mark img{filter:drop-shadow(0 6px 20px rgba(0,0,0,.5))}
@keyframes float{50%{transform:translateY(-10px) rotate(-3deg)}}
.hero__scroll{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);z-index:2;color:#fff;text-decoration:none;font-size:11px;letter-spacing:.3em;padding-bottom:34px}
.hero__scroll::after{content:"";position:absolute;left:50%;bottom:0;width:1px;height:28px;background:#fff;animation:drop 1.8s infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* 流れる文字 */
.marquee{background:var(--red);color:#fff;overflow:hidden;padding:14px 0;border-block:3px solid var(--ink)}
.marquee__track{display:flex;width:max-content;animation:marquee 40s linear infinite;font-family:var(--display);font-size:26px;white-space:nowrap}
.marquee__group{display:flex;align-items:center;gap:28px;padding-right:28px;flex-shrink:0}
.marquee__track i{font-style:normal;color:var(--gold);font-size:14px}
@keyframes marquee{to{transform:translateX(-50%)}}

/* 共通見出し */
.section{padding:110px 0}
.eyebrow{font-family:var(--display);color:var(--red);letter-spacing:.2em;font-size:14px;margin:0 0 6px}
.eyebrow--light{color:var(--gold)}
.h2{font-family:var(--display);font-weight:400;font-size:clamp(34px,5vw,56px);line-height:1.25;margin:0 0 28px}
.h2 em{font-style:normal;color:var(--red)}
.h2--light{color:#fff}

/* 次回開催 */
.next{background:var(--paper) radial-gradient(circle at 85% 30%,rgba(200,40,45,.09) 0 260px,transparent 261px)}
.next__card{display:grid;grid-template-columns:1.1fr 1fr;border:3px solid var(--ink);border-radius:24px;overflow:hidden;background:#fff;box-shadow:10px 10px 0 var(--ink)}
.next__left{padding:44px 44px 40px;position:relative}
.next__vol{display:inline-block;background:var(--ink);color:#fff;font-weight:900;font-size:13px;letter-spacing:.15em;padding:4px 12px;border-radius:6px}
.next__date{font-family:var(--display);font-size:clamp(64px,9vw,108px);line-height:1;margin:18px 0 4px;color:var(--red)}
.next__date small{font-family:var(--body);font-weight:900;font-size:22px;color:var(--ink);margin-left:6px;vertical-align:middle}
.next__year{font-weight:900;color:var(--muted);letter-spacing:.2em}
.next__theme{font-family:var(--display);font-size:clamp(26px,3.4vw,38px);margin:16px 0 14px;line-height:1.3}
.next__theme::before{content:"テーマ";display:block;font-family:var(--body);font-size:13px;font-weight:900;color:var(--red);letter-spacing:.2em}
.next__meta{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:20px 0;font-weight:700}
.next__meta dt{color:var(--red)}
.next__meta dd{margin:0}
.next__right{background:var(--ink) url(img/v3-17.webp) center/cover;min-height:320px;position:relative}
.next__right::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(200,40,45,.15),rgba(27,27,27,.35))}
.next__none{text-align:center;padding:40px 0}

/* ボタン */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:900;padding:14px 28px;border-radius:999px;border:2px solid var(--ink);background:#fff;transition:transform .15s,box-shadow .15s;box-shadow:4px 4px 0 var(--ink)}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn--red{background:var(--red);color:#fff}
.btn--red::after{content:"→"}

/* 楽市とは */
.about{background:var(--paper-2)}
.about__grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.about__text p:not(.eyebrow){margin:0 0 1.2em}
.about__photos{position:relative;height:520px}
.about__photos img{position:absolute;object-fit:cover;border-radius:18px;border:3px solid var(--ink)}
.about__photos img:first-child{width:62%;height:74%;left:0;top:0;transform:rotate(-3deg)}
.about__photos img:last-child{width:58%;height:66%;right:0;bottom:0;transform:rotate(3deg);box-shadow:-10px 10px 0 var(--red)}
.enjoy{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:90px}
.enjoy__item video,.enjoy__item img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:3px solid var(--ink);background:var(--ink)}
.enjoy__item h3{margin:18px 0 6px;font-size:20px}
.enjoy__item h3 b{font-family:var(--display);font-weight:400;background:linear-gradient(transparent 60%,rgba(217,164,65,.55) 60%)}
.enjoy__item p{margin:0;font-size:15px;color:var(--muted)}

/* アーカイブ */
.archive{background:var(--ink) radial-gradient(circle at 10% 0%,rgba(200,40,45,.35),transparent 50%);color:#fff}
.archive__lead{color:rgba(255,255,255,.7);margin:-12px 0 36px}
.archive__tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.archive__tab{font-family:var(--display);font-size:18px;background:transparent;color:#fff;border:2px solid rgba(255,255,255,.4);border-radius:999px;padding:8px 22px;cursor:pointer;transition:all .2s}
.archive__tab small{font-family:var(--body);font-weight:700;font-size:12px;margin-left:8px;opacity:.75}
.archive__tab[aria-selected="true"]{background:var(--red);border-color:var(--red)}
.archive__tab:hover{border-color:#fff}
.vol{display:none}
.vol.is-active{display:block;animation:fade .4s}
@keyframes fade{from{opacity:0;transform:translateY(10px)}}
.vol__head{display:grid;grid-template-columns:1.2fr 1fr;gap:44px;align-items:center;margin-bottom:40px}
.vol__cover{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:16/10;cursor:zoom-in}
.vol__cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.vol__cover:hover img{transform:scale(1.04)}
.vol__no{font-family:var(--display);font-size:clamp(46px,6vw,74px);line-height:1;margin:0}
.vol__no span{color:var(--red)}
.vol__date{font-family:var(--display);font-size:26px;color:var(--gold);margin:10px 0 0}
.vol__date s{opacity:.55}
.vol__date small{font-family:var(--body);font-weight:700;font-size:13px;color:#fff;opacity:.8}
.vol__theme{display:inline-block;margin-top:12px;background:var(--gold);color:var(--ink);font-weight:900;font-size:13px;padding:3px 12px;border-radius:6px}
.vol__summary{color:rgba(255,255,255,.85);margin:18px 0}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;list-style:none}
.chips li{border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:3px 14px;font-size:13px;font-weight:700}
.vol__sub{font-family:var(--display);font-size:20px;margin:44px 0 16px;display:flex;align-items:center;gap:14px}
.vol__sub::after{content:"";flex:1;height:1px;background:rgba(255,255,255,.2)}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.gallery button{padding:0;border:0;background:#333;border-radius:10px;overflow:hidden;aspect-ratio:1;cursor:zoom-in}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s,opacity .3s}
.gallery button:hover img{transform:scale(1.06);opacity:.85}
.videos{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.videos figure{margin:0}
.videos video{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;background:#000}
.videos figcaption{font-size:13px;margin-top:6px;opacity:.75}
.vendors{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.vendors div{background:rgba(255,255,255,.06);border-left:3px solid var(--red);padding:10px 14px;border-radius:0 8px 8px 0}
.vendors b{display:block}
.vendors span{font-size:13px;opacity:.7}
.vol__fewphotos{font-size:13px;opacity:.6;margin-top:10px}

/* 出店募集 */
.entry{background:var(--paper) repeating-linear-gradient(45deg,transparent 0 22px,rgba(200,40,45,.035) 22px 44px)}
.entry__lead{font-weight:700;margin:-8px 0 36px}
.entry__grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-bottom:40px}
.entry__card{background:#fff;border:3px solid var(--ink);border-radius:20px;padding:30px 32px}
.entry__card h3{font-family:var(--display);font-weight:400;font-size:22px;margin:0 0 16px}
.fee{width:100%;border-collapse:collapse;margin-bottom:12px}
.fee th,.fee td{padding:12px 4px;border-bottom:1px dashed var(--line);text-align:left}
.fee td{text-align:right;font-family:var(--display);font-size:20px;color:var(--red)}
.steps{list-style:none;padding:0;margin:0 0 12px;counter-reset:s}
.steps li{padding:10px 0 10px;border-bottom:1px dashed var(--line);font-weight:700}
.steps b{display:inline-block;background:var(--ink);color:#fff;font-size:12px;padding:2px 10px;border-radius:4px;margin-right:10px;letter-spacing:.1em}

/* アクセス */
.access__grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.info{display:grid;grid-template-columns:72px 1fr;gap:14px 16px;margin:0 0 16px}
.info dt{font-weight:900;color:#fff;background:var(--red);border-radius:6px;text-align:center;font-size:13px;height:max-content;padding:3px 0}
.info dd{margin:0;font-weight:500}
.access__map{border:3px solid var(--ink);border-radius:20px;overflow:hidden;box-shadow:8px 8px 0 var(--ink);aspect-ratio:4/3}
.access__map iframe{width:100%;height:100%;border:0;display:block}

/* フッター */
.footer{background:var(--ink);color:#fff;text-align:center;padding:64px 24px 40px}
.footer__logo img{margin:0 auto;height:110px;width:auto}
.footer__name{font-family:var(--display);font-size:28px;margin:14px 0 0}
.footer__sub{font-size:12px;letter-spacing:.15em;opacity:.7;margin:0 0 18px}
.footer__ig{color:var(--gold);font-weight:700}
.footer__copy{font-size:12px;opacity:.55;margin-top:28px}

/* 写真の拡大 */
.lightbox{border:0;padding:0;background:transparent;max-width:100vw;max-height:100vh;width:100vw;height:100vh;margin:0}
.lightbox::backdrop{background:rgba(10,8,6,.92)}
.lightbox[open]{display:flex;align-items:center;justify-content:center}
.lightbox img{max-width:min(92vw,1400px);max-height:84vh;object-fit:contain;border-radius:8px}
.lightbox button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;width:52px;height:52px;border-radius:50%;font-size:30px;cursor:pointer;line-height:1}
.lightbox button:hover{background:var(--red)}
.lightbox__close{top:20px;right:20px}
.lightbox__prev{left:20px;top:50%;transform:translateY(-50%)}
.lightbox__next{right:20px;top:50%;transform:translateY(-50%)}
.lightbox__count{position:absolute;bottom:14px;left:0;right:0;text-align:center;color:#fff;font-size:13px;opacity:.7;margin:0}

/* スクロールで出てくる */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.reveal.is-in{opacity:1;transform:none}

/* ---- タブレット・スマホ ---- */
@media (max-width:900px){
  .header__nav{position:fixed;inset:0;background:var(--ink);flex-direction:column;align-items:center;justify-content:center;gap:26px;opacity:0;pointer-events:none;transition:opacity .3s}
  .header__nav a,.header.is-solid .header__nav a{color:#fff;font-family:var(--display);font-size:24px;font-weight:400}
  .header__nav.is-open{opacity:1;pointer-events:auto}
  .header__menu{display:block;z-index:2}
  .next__card,.about__grid,.vol__head,.entry__grid,.access__grid{grid-template-columns:1fr}
  .next__right{min-height:220px;order:-1}
  .about__photos{height:380px}
  .enjoy{grid-template-columns:1fr;gap:36px;margin-top:60px}
}
@media (max-width:600px){
  .wrap{padding:0 16px}
  .section{padding:76px 0}
  .header{padding:8px 16px}
  .header__logo span{font-size:17px}
  .header__logo img{height:34px}
  .hero__inner{padding:110px 16px 90px}
  .hero__mark{right:16px;bottom:80px;width:70px}
  .hero__next-date{font-size:28px}
  .side-cta{top:auto;bottom:0;left:0;right:0;transform:none;flex-direction:row;gap:0}
  .side-cta__btn{writing-mode:horizontal-tb;flex:1;text-align:center;border-radius:0;padding:12px 0;font-size:14px}
  .side-cta__btn:hover{padding-right:0}
  body{padding-bottom:46px}
  .next__left{padding:28px 22px}
  .next__card{box-shadow:6px 6px 0 var(--ink)}
  .about__photos{height:300px}
  .entry__card{padding:22px 20px}
  .gallery{grid-template-columns:repeat(3,1fr);gap:6px}
  .archive__tab{font-size:15px;padding:6px 16px}
  .marquee__track{font-size:20px}
  .lightbox__prev,.lightbox__next{top:auto;bottom:20px;transform:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}
.vol__cover--none{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;background:var(--red) repeating-linear-gradient(45deg,transparent 0 18px,rgba(0,0,0,.08) 18px 36px);cursor:default;color:#fff;font-weight:900}
.vol__cover--none img{width:90px;height:auto}
.fee td,.next__date small{white-space:nowrap}
@media (max-width:600px){
  .next__date{font-size:64px}
  .next__date small{display:block;font-size:17px;margin:6px 0 0}
  .fee td{font-size:17px}
  .fee th{font-size:14px}
}