:root{
  --bg:#f4f6f9; --surface:#ffffff; --surface-2:#eef2f7; --ink:#1d2430; --ink-2:#55606f; --ink-3:#8a94a3;
  --line:#dde3ea; --accent:#2f86d6; --accent-ink:#ffffff; --accent-soft:#e3f0fb;
  --bar:#2b2f36; --bar-ink:#ffffff;
  --ok:#378add; --low:#ba7517; --full:#e24b4a;
  --badge:#e24b4a; --badge-ink:#fff;
  --tag-beginner:#bfe8a8; --tag-kick:#e2c3f0; --tag-live:#f6b98e; --tag-hard:#e07a7a; --tag-event:#f3e39a; --tag-shuffle:#6b6f76; --tag-lite:#b9d4f2;
  --shadow:0 1px 2px rgba(20,30,50,.06),0 6px 18px rgba(20,30,50,.06);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#11151b; --surface:#1a2028; --surface-2:#222a34; --ink:#e8edf3; --ink-2:#a9b3bf; --ink-3:#7a8594;
    --line:#2d3641; --accent:#5aa7ee; --accent-ink:#0d1520; --accent-soft:#1c2c3d;
    --bar:#0b0e12; --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 18px rgba(0,0,0,.25);
    --tag-beginner:#4e7a3b; --tag-kick:#6c4a80; --tag-live:#9a5a32; --tag-hard:#8e3a3a; --tag-event:#7d6d2a; --tag-shuffle:#555a61; --tag-lite:#3c5c80;
  }
}
:root[data-theme="dark"]{
  --bg:#11151b; --surface:#1a2028; --surface-2:#222a34; --ink:#e8edf3; --ink-2:#a9b3bf; --ink-3:#7a8594;
  --line:#2d3641; --accent:#5aa7ee; --accent-ink:#0d1520; --accent-soft:#1c2c3d;
  --bar:#0b0e12; --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 18px rgba(0,0,0,.25);
  --tag-beginner:#4e7a3b; --tag-kick:#6c4a80; --tag-live:#9a5a32; --tag-hard:#8e3a3a; --tag-event:#7d6d2a; --tag-shuffle:#555a61; --tag-lite:#3c5c80;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans JP",system-ui,sans-serif;line-height:1.8;font-size:16px;-webkit-text-size-adjust:100%}
a{color:var(--accent)}
img{max-width:100%}

/* header */
.top{position:sticky;top:0;z-index:20;background:var(--bar);color:var(--bar-ink)}
.top-in{max-width:1080px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px}
.logo{width:32px;height:32px;flex:none;display:block}
.brand{display:flex;align-items:center;gap:14px;margin:4px 0 18px}
.brand img{width:56px;height:56px;flex:none}
.brand span{font:500 clamp(18px,3vw,26px)/1.3 "M PLUS Rounded 1c","Noto Sans JP",sans-serif;color:var(--ink-2)}
.top b{font-family:Oswald,sans-serif;font-weight:500;letter-spacing:.04em;font-size:17px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .go{margin-left:auto;flex:none;background:var(--accent);color:#fff;text-decoration:none;font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px}

.hero{background:linear-gradient(180deg,var(--bar) 0%,var(--bar) 60%,var(--bg) 60%);padding:28px 16px 0}
.hero-card{max-width:1080px;margin:0 auto;background:var(--surface);border-radius:18px;box-shadow:var(--shadow);padding:36px 32px}
.eyebrow{font:600 13px/1 Oswald,sans-serif;letter-spacing:.18em;color:var(--accent);text-transform:uppercase}
h1{font-size:clamp(26px,4.4vw,40px);line-height:1.35;margin:10px 0 14px;font-weight:900}
.lead{color:var(--ink-2);margin:0;max-width:46em}
.quick{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:26px}
.quick a{display:block;text-decoration:none;color:var(--ink);background:var(--surface-2);border-radius:12px;padding:14px 16px;font-weight:700;font-size:15px;border:1px solid transparent}
.quick a:hover{border-color:var(--accent)}
.quick a span{display:block;font-weight:400;font-size:13px;color:var(--ink-2)}

/* layout */
.wrap{max-width:1080px;margin:0 auto;padding:0 16px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:36px;margin-top:36px}
nav.toc{position:sticky;top:72px;align-self:start;font-size:14px}
nav.toc p{font-weight:700;margin:0 0 8px;color:var(--ink-3);font-size:12px;letter-spacing:.1em}
nav.toc a{display:block;color:var(--ink-2);text-decoration:none;padding:5px 10px;border-left:2px solid var(--line)}
nav.toc a:hover{color:var(--accent);border-left-color:var(--accent)}
main{min-width:0}
section{background:var(--surface);border-radius:16px;box-shadow:var(--shadow);padding:30px 32px;margin-bottom:24px}
h2{font-size:24px;margin:0 0 6px;display:flex;align-items:center;gap:12px;line-height:1.4}
h2 .no{font:600 14px/1 Oswald,sans-serif;background:var(--bar);color:#fff;border-radius:6px;padding:6px 8px;flex:none}
h2 + .sub{color:var(--ink-2);margin:0 0 20px;font-size:15px}
h3{font-size:18px;margin:28px 0 8px;padding-left:12px;border-left:4px solid var(--accent);line-height:1.5}
p{margin:0 0 12px}
.note{background:var(--accent-soft);border-radius:10px;padding:12px 16px;font-size:14.5px;color:var(--ink);margin:16px 0}
.note b{color:var(--accent)}
.warn{background:var(--surface-2);border-left:4px solid var(--low);border-radius:6px;padding:12px 16px;font-size:14.5px;margin:16px 0}
kbd{font-family:inherit;font-size:13px;background:var(--surface-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 7px}
.pill{display:inline-block;font-size:13px;font-weight:700;background:var(--bar);color:#fff;border-radius:6px;padding:1px 9px;margin:0 2px;white-space:nowrap}
.pill.blue{background:var(--accent);color:#fff}

/* definition list */
.items{display:grid;gap:10px;margin:14px 0 0;padding:0;list-style:none}
.items li{display:grid;grid-template-columns:30px minmax(0,1fr);gap:12px;align-items:start;padding:12px 14px;background:var(--surface-2);border-radius:10px}
.items li b{display:block;font-size:15.5px}
.items li span.d{font-size:14.5px;color:var(--ink-2)}
.n{width:26px;height:26px;border-radius:50%;background:var(--badge);color:var(--badge-ink);font:700 13px/26px Oswald,sans-serif;text-align:center;display:inline-block;flex:none}

/* header mock */
.mock{background:#fafbfc;border:1px solid var(--line);border-radius:12px;padding:16px;overflow:hidden;color:#333}
:root[data-theme="dark"] .mock{background:#f3f5f8}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .mock{background:#f3f5f8}}
.mh{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:start}
.mbtn{font-size:11px;font-weight:700;background:#3b3f45;color:#fff;border-radius:6px;padding:3px 8px;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.mbtn.res{background:#6aa3d8}
.mstack{display:grid;gap:4px;justify-items:end}
.mtitle{text-align:center;font:500 18px/1.2 "M PLUS Rounded 1c","Noto Sans JP",sans-serif;color:#555}
.mtitle img{width:22px;height:22px;margin-right:6px;vertical-align:-5px}
.mnav{display:flex;justify-content:center;align-items:center;gap:18px;margin:10px 0 8px;font-size:14px}
.mnav .c{width:20px;height:20px;border-radius:50%;background:#333;color:#fff;display:grid;place-items:center;font-size:10px}
.mnav .o{width:20px;height:20px;border-radius:50%;border:1.5px solid #555;display:grid;place-items:center;font-size:10px}
.mnav .cal{font-size:20px}
.mdates{display:flex;gap:4px;overflow:hidden}
.mdates span{border:1px solid #ccd;border-radius:4px;padding:1px 6px;font-size:11px;white-space:nowrap;background:#fff}
.mdates .today{border-bottom:3px double #6a6adf}
.mdates .sun{color:#e05d95}.mdates .sat{color:#4c86d6}
.mstudios{display:flex;gap:6px;margin-top:8px}
.mstudios span{flex:1;background:#3b3f45;color:#fff;font:500 12px/1.9 Oswald,sans-serif;text-align:center;border-radius:3px;white-space:nowrap;min-width:0;overflow:hidden}
.mh .n,.mnav .n,.mdates-row .n,.mstudios-row .n{width:20px;height:20px;line-height:20px;font-size:11px}
.mdates-row,.mstudios-row{display:flex;align-items:center;gap:8px}
.mdates-row .mdates,.mstudios-row .mstudios{flex:1;min-width:0;margin-top:0}
.mstudios-row{margin-top:8px}

/* card figure */
.cardstage{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:28px;align-items:center}
.cardfig{background:#eef1f5;border-radius:12px;padding:22px 24px}
.pinwrap{position:relative;max-width:470px;margin:0 auto}
.pinwrap img{display:block;width:100%;height:auto;border-radius:10px}
.pin{position:absolute;transform:translate(-50%,-50%);width:24px;height:24px;line-height:24px;font-size:12px;box-shadow:0 0 0 2px #fff}
.cardlegend{font-size:14px}
#card > .shot{margin-top:6px}
/* tags */
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.tag{font-size:13px;padding:2px 12px;border-radius:4px;color:var(--ink);border:1px solid var(--line)}
.tag.g{background:var(--tag-beginner)}.tag.k{background:var(--tag-kick)}.tag.l{background:var(--tag-live)}.tag.h{background:var(--tag-hard)}.tag.e{background:var(--tag-event)}.tag.s{background:var(--tag-shuffle);color:#fff}.tag.li{background:var(--tag-lite)}

/* capacity */
.caps{display:grid;gap:10px;margin:12px 0}
.caprow{display:grid;grid-template-columns:120px 1fr;gap:12px;align-items:center;font-size:14.5px}
.capbar{height:8px;background:var(--surface-2);border-radius:4px;overflow:hidden;border:1px solid var(--line)}
.capbar i{display:block;height:100%}

/* steps */
.steps{counter-reset:s;display:grid;gap:12px;margin:14px 0;padding:0;list-style:none}
.steps li{counter-increment:s;position:relative;padding:12px 14px 12px 52px;background:var(--surface-2);border-radius:10px;font-size:15px}
.steps li::before{content:counter(s);position:absolute;left:14px;top:12px;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;font:600 14px/26px Oswald,sans-serif;text-align:center}

.shot{margin:18px 0 22px}
.shot img{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.shot figcaption{font-size:13px;color:var(--ink-3);margin-top:8px;text-align:center}
.shot.narrow img{max-width:380px;margin:0 auto}
.shot.mid img{max-width:560px;margin:0 auto}
.shots2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start;margin:18px 0}
.shots2 .shot{margin:0}
@media (max-width:560px){.shots2{grid-template-columns:1fr}}
table{width:100%;border-collapse:collapse;font-size:14.5px;margin:12px 0}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--surface-2);font-weight:700;white-space:nowrap}
.tblwrap{overflow-x:auto}

details{background:var(--surface-2);border-radius:10px;padding:0 16px;margin:10px 0}
summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;display:flex;gap:10px}
summary::before{content:"Q";font:600 15px/1.6 Oswald,sans-serif;color:var(--accent)}
details[open] summary{border-bottom:1px solid var(--line)}
details > div{padding:12px 0 14px;font-size:15px;color:var(--ink-2)}
details > div p{margin:0 0 8px}
details > div ol{margin:4px 0 10px;padding-left:1.4em}
details > div li{margin:2px 0}

footer{text-align:center;color:var(--ink-3);font-size:13px;padding:24px 16px 48px}
footer a{color:var(--ink-2)}

@media (max-width:860px){
  .wrap{grid-template-columns:1fr;gap:0;margin-top:24px}
  nav.toc{position:static;background:var(--surface);border-radius:14px;box-shadow:var(--shadow);padding:16px;margin-bottom:24px;display:grid;grid-template-columns:1fr 1fr;gap:2px 10px}
  nav.toc p{grid-column:1/-1}
  .cardstage{grid-template-columns:1fr}
  .pin{width:20px;height:20px;line-height:20px;font-size:10.5px}
}
@media (max-width:560px){
  body{font-size:15px}
  .hero{padding:20px 16px 0}
  .hero-card{padding:24px 18px}
  section{padding:22px 18px}
  h2{font-size:21px}
  .top b{font-size:15px}
  nav.toc{grid-template-columns:1fr}
  .mtitle{font-size:14px}
  .mh .mstack .mbtn{font-size:10px}
  .caprow{grid-template-columns:96px 1fr}
}

/* shared additions */
.crumbs{font-size:13px;color:var(--ink-3);margin-bottom:10px}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
h1 small{display:block;font-size:.5em;font-weight:500;color:var(--ink-2);margin-top:6px}
.top nav.tnav{margin-left:auto;display:flex;gap:6px;align-items:center}
.top nav.tnav a.tl{color:#cfd6df;text-decoration:none;font-size:13px;padding:6px 10px;white-space:nowrap}
.top nav.tnav a.tl:hover{color:#fff}
.top nav.tnav .go{margin-left:4px}
@media (max-width:760px){.top nav.tnav a.tl{display:none}}
/* about page */
main.single{max-width:860px;margin:36px auto 0;padding:0 16px}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-top:24px}
.facts div{background:var(--surface-2);border-radius:12px;padding:12px 16px}
.facts span{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.06em}
.facts b{font-size:17px}
blockquote{margin:18px 0;padding:16px 20px;border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:0 10px 10px 0;font-weight:700;font-size:17px;line-height:1.7}
.timeline{list-style:none;margin:16px 0 0;padding:0 0 0 22px;border-left:3px solid var(--line)}
.timeline li{position:relative;padding:0 0 22px 16px}
.timeline li::before{content:"";position:absolute;left:-31px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--surface);border:3px solid var(--accent)}
.timeline li.big::before{background:var(--accent);width:18px;height:18px;left:-33px;top:5px}
.timeline time{display:block;font:600 14px/1.4 Oswald,"Noto Sans JP",sans-serif;color:var(--accent);letter-spacing:.04em}
.timeline b{display:block;font-size:16.5px;margin:2px 0}
.timeline span{display:block;font-size:14.5px;color:var(--ink-2)}
.video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.links{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-block;background:var(--bar);color:#fff;text-decoration:none;font-weight:700;font-size:14px;padding:9px 16px;border-radius:999px}
.btn.alt{background:var(--accent)}
.aboutcard{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}

/* icons (ChatGPT generated) */
.hico{flex:none;display:inline-grid;place-items:center;width:28px;height:28px;border-radius:7px}
.hico img{width:26px;height:26px;display:block}
.hico.big{width:40px;height:40px;border-radius:10px}
.hico.big img{width:36px;height:36px}
h2 .hico{margin-right:2px}
.tico{width:16px;height:16px;vertical-align:-3px;margin-right:8px;border-radius:4px}
nav.toc a{display:flex;align-items:center}
nav.toc a .tico{flex:none}
.eyebrow .tico{width:16px;height:16px;margin-right:6px}
.quick a{display:grid;grid-template-columns:28px 1fr;grid-template-rows:auto auto;column-gap:10px;align-items:center}
.quick a .qico{grid-row:1/3;width:28px;height:28px;border-radius:7px;display:grid;place-items:center}
.quick a .qico img{width:26px;height:26px}
.quick a span:not(.qico){grid-column:2}
.aboutcard{align-items:center}
.brand img{width:44px;height:44px}
/* dark mode: put icons on a small white tile so navy parts stay visible */
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .hico,:root:not([data-theme="light"]) .quick a .qico{background:#fff}
  :root:not([data-theme="light"]) .hico img,:root:not([data-theme="light"]) .quick a .qico img{width:22px;height:22px}
  :root:not([data-theme="light"]) .hico.big img{width:32px;height:32px}
  :root:not([data-theme="light"]) .tico{background:#fff;padding:1px}
}
:root[data-theme="dark"] .hico,:root[data-theme="dark"] .quick a .qico{background:#fff}
:root[data-theme="dark"] .hico img,:root[data-theme="dark"] .quick a .qico img{width:22px;height:22px}
:root[data-theme="dark"] .tico{background:#fff;padding:1px}

.nw{white-space:nowrap}