/* 8MATES — 明るい地に黒の文字と信号のオレンジ。強度の区画だけ夜の帯で切り替える */
:root{
  --paper:#f4f1ea; --card:#ffffff; --ink:#121211; --muted:#6c6860; --line:#e3ddd1;
  --sig:#ff5a1f; --sig-deep:#e2440c; --sig-soft:#ffe3d6; --night:#0f0f0e; --night-2:#1b1a18; --on-night:#f4f1ea;
  --r:22px; --r-sm:14px;
  --display:"Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",sans-serif;
  --num:"Anton","Zen Kaku Gothic New",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;background:var(--paper);color:var(--ink)}
body{font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img,video{display:block;max-width:100%}
[hidden]{display:none!important}
.nb{display:inline-block}
h1,h2,h3,.tile b,.stepc b{word-break:auto-phrase}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* ヘッダー */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 86%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.top.scrolled{border-bottom-color:var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-family:var(--num);font-size:26px;letter-spacing:.04em;text-decoration:none;line-height:1}
.logo b{color:var(--sig);font-weight:400}
.pill{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--paper);text-decoration:none;font-weight:700;font-size:14px;padding:10px 16px;border-radius:999px}

/* ヒーロー */
.hero{padding:28px 0 8px}
.eyebrow{display:inline-flex;gap:10px;align-items:center;font-weight:700;font-size:13px;letter-spacing:.06em;color:var(--muted)}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--sig);box-shadow:0 0 0 4px var(--sig-soft)}
h1.big{white-space:nowrap;font-family:var(--display);font-weight:900;font-size:clamp(44px,12.6vw,112px);line-height:1.02;letter-spacing:-.035em;margin:14px 0 18px}
.mark{position:relative;color:var(--sig);white-space:nowrap}
.mark::after{content:"";position:absolute;left:-2%;right:-2%;bottom:.04em;height:.16em;background:var(--sig);opacity:.18;border-radius:4px;transform:skewX(-12deg)}
.sub{font-size:17px;color:#2b2a27;max-width:34em;margin:0 0 22px}
.hero-grid{display:grid;gap:22px}
.film{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:16/11;background:#ddd}
.film video,.film img{width:100%;height:100%;object-fit:cover}
.film .tag{position:absolute;left:14px;bottom:14px;background:var(--paper);color:var(--ink);font-weight:800;font-size:13px;padding:8px 12px;border-radius:999px;box-shadow:0 6px 20px rgba(0,0,0,.18)}
.film .tag b{color:var(--sig)}

/* 部門のタイル */
.pick{margin-top:26px;margin-bottom:10px}
.pick h2{font-family:var(--display);font-weight:900;font-size:22px;margin:0 0 12px;letter-spacing:-.01em}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tile{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:96px;padding:14px 14px 12px;border-radius:var(--r-sm);background:var(--card);border:1.5px solid var(--line);text-decoration:none;color:var(--ink);transition:transform .15s,border-color .15s,box-shadow .15s}
.tile:active{transform:scale(.98)}
.tile:hover{border-color:var(--ink);box-shadow:0 10px 28px rgba(0,0,0,.08)}
.tile b{font-family:var(--display);font-size:19px;font-weight:900;line-height:1.25}
.tile small{color:var(--muted);font-size:13px}
.tile .go{position:absolute;right:12px;top:12px;width:28px;height:28px;border-radius:50%;background:var(--paper);display:grid;place-items:center;font-size:15px}
.tile.wide{grid-column:span 2;background:var(--ink);color:var(--paper);border-color:var(--ink)}
.tile.wide small{color:#bdb8ad}
.tile.wide .go{background:var(--sig);color:#fff}
.free{display:flex;flex-wrap:wrap;gap:8px 16px;margin:14px 0 0;font-size:13px;color:var(--muted)}
.free span::before{content:"✓";color:var(--sig);font-weight:900;margin-right:6px}

/* 夜の帯（数字） */
.night{background:var(--night);color:var(--on-night);margin-top:56px;position:relative;overflow:hidden}
.stat{padding-top:64px;padding-bottom:60px;display:grid;gap:18px;align-items:center}
.stat .n{font-family:var(--num);font-size:clamp(120px,36vw,260px);line-height:.85;color:var(--sig);letter-spacing:-.01em}
.stat .n small{font-size:.42em;color:var(--on-night)}
.stat h3{font-family:var(--display);font-weight:900;font-size:clamp(26px,6.4vw,44px);line-height:1.25;margin:0;letter-spacing:-.02em}
.stat p{color:#bdb8ad;margin:0}
.stat .src{font-size:12px;color:#8d887e}
.bar8{display:flex;gap:4px;margin-top:6px}
.bar8 i{flex:1;height:10px;border-radius:3px;background:#2c2b28}
.bar8 i.on{background:var(--sig)}

/* 見出しの型 */
.sec{padding:76px 0 0}
.kicker{font-family:var(--num);font-size:15px;letter-spacing:.14em;color:var(--sig)}
h2.h{font-family:var(--display);font-weight:900;font-size:clamp(30px,7.6vw,56px);line-height:1.15;letter-spacing:-.03em;margin:8px 0 14px}
.lede{color:#3a3934;max-width:36em;margin:0 0 26px}

/* 3 ステップ */
.steps{display:grid;gap:16px}
.stepc{background:var(--card);border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.stepc .ph{aspect-ratio:4/3;overflow:hidden}
.stepc .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.stepc:hover .ph img{transform:scale(1.04)}
.stepc .tx{padding:18px 18px 20px;display:grid;grid-template-columns:auto 1fr;gap:4px 14px;align-items:baseline}
.stepc .no{font-family:var(--num);font-size:44px;line-height:1;color:var(--sig);grid-row:span 2}
.stepc b{font-family:var(--display);font-size:21px;font-weight:900}
.stepc span{color:var(--muted);font-size:15px}

/* 組み方 */
.match{display:grid;gap:18px}
.chips{display:grid;gap:10px}
.chip{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px}
.chip svg{width:44px;height:44px}
.chip b{display:block;font-family:var(--display);font-weight:900;font-size:17px}
.chip span{color:var(--muted);font-size:14px}
.collage{display:grid;grid-template-columns:1.2fr 1fr;gap:10px}
.collage img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-sm)}
.collage .t{aspect-ratio:3/4}
.collage .s{display:grid;gap:10px}
.collage .s img{aspect-ratio:1/1}

/* レースの図 */
.race{background:var(--night);color:var(--on-night);border-radius:var(--r);padding:26px 18px;margin-top:6px}
.race h3{font-family:var(--display);font-weight:900;font-size:22px;margin:0 0 4px}
.race p.m{color:#bdb8ad;margin:0 0 18px;font-size:15px}
.lap{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.st{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center;background:var(--night-2);border-radius:14px;padding:10px 12px;opacity:.25;transform:translateY(6px);transition:opacity .5s,transform .5s}
.st.on{opacity:1;transform:none}
.st .k{font-family:var(--num);font-size:13px;color:var(--sig);letter-spacing:.08em;grid-column:span 2}
.st svg{width:38px;height:38px}
.st b{font-size:14px;line-height:1.35;word-break:keep-all}
.st small{display:block;color:#8d887e;font-size:12px;font-weight:400}
.split{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}
.split div{border:1px solid #2c2b28;border-radius:12px;padding:10px;text-align:center}
.split b{font-family:var(--num);font-size:30px;display:block;line-height:1.1;color:var(--sig)}
.split span{font-size:12px;color:#bdb8ad}

/* 大会 */
.races{display:grid;gap:12px}
.rc{display:grid;grid-template-columns:1fr auto;gap:6px 14px;align-items:end;background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);padding:18px}
.rc b{font-family:var(--display);font-weight:900;font-size:22px}
.rc small{color:var(--muted);font-size:14px;grid-column:1}
.rc .d{grid-row:span 2;text-align:right;font-family:var(--num);font-size:46px;line-height:1;color:var(--ink)}
.rc .d span{display:block;font-family:var(--display);font-size:12px;color:var(--muted);font-weight:700}
.rc.hot{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.rc.hot small,.rc.hot .d span{color:#bdb8ad}
.rc.hot .d{color:var(--sig)}
.note{font-size:12px;color:var(--muted)}

/* よくある質問 */
.faq details{border-bottom:1px solid var(--line);padding:16px 2px}
.faq summary{list-style:none;cursor:pointer;font-weight:800;font-size:17px;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--num);color:var(--sig);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq p{margin:10px 0 0;color:#3a3934}

/* 最後の申込み */
.final{position:relative;margin-top:84px;color:#fff;min-height:540px;display:flex;align-items:flex-end;overflow:hidden}
.final img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 30%}
.final::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 20%,rgba(0,0,0,.78) 78%);z-index:1}
.final .wrap{position:relative;z-index:2;padding-bottom:44px;width:100%}
.final h2{font-family:var(--display);font-weight:900;font-size:clamp(36px,10vw,80px);line-height:1.05;letter-spacing:-.03em;margin:0 0 18px}
.cta{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--sig);color:#fff;text-decoration:none;font-weight:900;font-size:18px;padding:18px 26px;border-radius:999px;box-shadow:0 12px 30px rgba(255,90,31,.35);transition:transform .15s,background .15s}
.cta:hover{background:var(--sig-deep)}
.cta:active{transform:scale(.98)}
.cta.block{display:flex;width:100%}

footer{background:var(--night);color:#8d887e;font-size:13px;padding:30px 0 calc(30px + env(safe-area-inset-bottom))}
footer a{color:#bdb8ad}
footer .logo{color:var(--on-night);font-size:22px}
footer .row{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:10px}

/* 出てくる動き */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.rv{opacity:1;transform:none;transition:none}.st{opacity:1;transform:none}}

/* 広い画面 */
@media (min-width:860px){
  .hero{padding:56px 0 8px}
  .hero-grid{grid-template-columns:1.05fr 1fr;align-items:center;gap:48px}
  .film{aspect-ratio:1/1}
  .film video,.film img{object-position:35% 50%}
  h1.big{font-size:clamp(60px,5.6vw,80px)}
  .tiles{grid-template-columns:repeat(3,1fr)}
  .tile.wide{grid-column:span 1}
  .stat{grid-template-columns:auto 1fr;gap:48px;padding-top:96px;padding-bottom:96px}
  .steps{grid-template-columns:repeat(3,1fr)}
  .match{grid-template-columns:1fr 1fr;gap:28px;align-items:start}
  .lap{grid-template-columns:repeat(4,1fr)}
  .races{grid-template-columns:1fr 1fr}
  .race{padding:36px 32px}
  .final{min-height:620px}
}