:root{
  --ground:#F2F6F5; --surface:#FFFFFF; --surface-2:#E7EFED; --ink:#12343B; --ink-2:#4D646A; --line:#CFDCD9;
  --accent:#0F7C74; --accent-ink:#FFFFFF; --accent-soft:#DCEFEC;
  --ng:#B8322A; --ng-bg:#FBE9E7; --warn:#8F5D00; --warn-bg:#FCF1DC; --ok:#2B7541; --ok-bg:#E3F2E6;
  --star:#A86F00; --star-off:#6F8582; --line-strong:#7A918F; --bar-old:#A9BCB9;
  --shadow:0 1px 2px rgba(18,52,59,.06),0 4px 14px rgba(18,52,59,.06);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ground:#0E1B1E; --surface:#152629; --surface-2:#1D3337; --ink:#E3EEEC; --ink-2:#9DB4B3; --line:#2B4549;
    --accent:#3FB8AC; --accent-ink:#06201D; --accent-soft:#173B38;
    --ng:#F28B80; --ng-bg:#3A1A17; --warn:#E9B456; --warn-bg:#36290F; --ok:#7CCB8F; --ok-bg:#16301E;
    --star:#F2C14E; --star-off:#5F7F82; --line-strong:#5F7F82; --bar-old:#4A6468; --shadow:none; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --ground:#0E1B1E; --surface:#152629; --surface-2:#1D3337; --ink:#E3EEEC; --ink-2:#9DB4B3; --line:#2B4549;
  --accent:#3FB8AC; --accent-ink:#06201D; --accent-soft:#173B38;
  --ng:#F28B80; --ng-bg:#3A1A17; --warn:#E9B456; --warn-bg:#36290F; --ok:#7CCB8F; --ok-bg:#16301E;
  --star:#F2C14E; --star-off:#5F7F82; --line-strong:#5F7F82; --bar-old:#4A6468; --shadow:none; color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);font:15px/1.75 "BIZ UDPGothic","Hiragino Sans","Noto Sans JP",system-ui,sans-serif}
h1,h2,h3,h4{font-family:"Zen Kaku Gothic Antique","Hiragino Sans",sans-serif;text-wrap:balance;margin:0;line-height:1.35}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:1160px;margin:0 auto;padding-inline:16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.muted{color:var(--ink-2)}
.small{font-size:12.5px}

/* ---------- header ---------- */
header.top{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:env(safe-area-inset-top,0px);z-index:30}
.top-in{display:flex;align-items:center;gap:12px;padding-block:10px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;min-width:0;text-decoration:none;color:inherit}
.brand svg{flex:none}
.brand-name{font-family:"Zen Kaku Gothic Antique",sans-serif;font-size:19px;font-weight:900;letter-spacing:.02em;line-height:1.2;white-space:nowrap}
.brand-sub{display:block;font-size:11px;color:var(--ink-2);letter-spacing:.04em;white-space:nowrap}
.account{display:flex;align-items:center;gap:8px;flex:none}
.avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;background:var(--surface-2);display:grid;place-items:center;font-weight:700;font-size:14px;flex:none}
.acct-btn{min-height:44px;min-width:44px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:3px 12px 3px 3px;font-size:13px;font-weight:700;max-width:200px}
.acct-btn .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.login-btn{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 14px;font-weight:700;font-size:13.5px}
.login-btn:hover{border-color:var(--accent)}
nav.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;padding-bottom:8px;margin-top:-2px}
nav.tabs::-webkit-scrollbar{display:none}
nav.tabs button{border:0;background:transparent;padding:7px 14px;border-radius:999px;font-weight:700;font-size:14px;color:var(--ink-2);white-space:nowrap;flex:none}
nav.tabs button[aria-selected="true"]{background:var(--ink);color:var(--surface)}
nav.tabs button:hover:not([aria-selected="true"]){background:var(--surface-2)}
.notice{background:var(--warn-bg);color:var(--warn);font-size:12.5px;padding-block:6px;line-height:1.6}
.notice b{font-weight:700}

main{padding-block:26px 72px}
section[role="tabpanel"]{display:grid;gap:20px}
.lead h2{font-size:clamp(21px,3.1vw,30px);font-weight:900}
.lead p{margin:6px 0 0;color:var(--ink-2);max-width:70ch}

/* ---------- common ---------- */
.btn{border:0;background:var(--ink);color:var(--surface);padding:10px 18px;border-radius:10px;font-weight:700;display:inline-flex;align-items:center;gap:6px;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:var(--surface-2);color:var(--ink)}
.btn.accent{background:var(--accent);color:var(--accent-ink)}
.btn.danger{background:var(--ng-bg);color:var(--ng)}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{min-height:36px;border:1px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:5px 12px;font-size:13px;display:inline-flex;align-items:center;gap:6px}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--surface)}
.chip .n{font-size:11px;opacity:.7;font-variant-numeric:tabular-nums}
.row-label{font-size:11.5px;letter-spacing:.08em;color:var(--ink-2);font-weight:700;margin-bottom:4px}
.badge{display:inline-flex;align-items:center;gap:5px;font-weight:700;font-size:12px;padding:2px 10px;border-radius:999px;width:max-content;white-space:nowrap}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.b-ng{color:var(--ng);background:var(--ng-bg)}
.b-warn{color:var(--warn);background:var(--warn-bg)}
.b-ok{color:var(--ok);background:var(--ok-bg)}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;display:grid;gap:10px;align-content:start}
.panel h3{font-size:16px}
.panel p,.panel li{font-size:14px;margin:0}
.panel ul,.panel ol{margin:0;padding-left:1.2em;display:grid;gap:4px}
.field{display:grid;gap:4px}
.field label,.field .lbl{font-size:12.5px;font-weight:700;color:var(--ink-2)}
.input,select.input,textarea.input{width:100%;font-size:16px;border:1.5px solid var(--line-strong);border-radius:10px;padding:9px 12px;background:var(--surface);min-width:0}
.input:focus{outline:none;border-color:var(--accent)}
textarea.input{resize:vertical;min-height:84px;line-height:1.6}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--surface);padding:10px 18px;border-radius:999px;font-size:14px;font-weight:700;z-index:100;box-shadow:0 8px 24px rgba(0,0,0,.2);max-width:calc(100vw - 32px)}
.empty{padding:36px 20px;text-align:center;color:var(--ink-2);background:var(--surface);border-radius:14px;border:1px dashed var(--line)}

/* ---------- stars ---------- */
.stars{display:inline-flex;align-items:center;gap:1px;color:var(--star);font-size:13px;line-height:1}
.stars .off{color:var(--star-off)}
.stars .half{position:relative;display:inline-block}.stars .half .on{position:absolute;left:0;top:0;width:50%;overflow:hidden}
.rating-line{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-2);font-variant-numeric:tabular-nums;flex-wrap:wrap}
.rating-line b{color:var(--ink);font-size:13px}
.star-input{display:inline-flex;gap:2px}
.star-input button{border:0;background:transparent;padding:2px;font-size:30px;line-height:1;color:var(--star-off);transition:transform .1s}
.star-input button.on{color:var(--star)}
.star-input button:hover{transform:scale(1.12)}
@media (prefers-reduced-motion:reduce){.star-input button{transition:none}.star-input button:hover{transform:none}}

/* ---------- search ---------- */
.searchbar{display:grid;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.q{display:flex;align-items:center;gap:10px;border:2px solid var(--line);border-radius:10px;padding:0 12px;background:var(--ground)}
.q:focus-within{border-color:var(--accent)}
.q input{flex:1;border:0;background:transparent;padding:12px 0;font-size:16px;min-width:0}
.q input:focus{outline:none}
.q .clear{border:0;background:transparent;color:var(--ink-2);font-size:22px;min-width:40px;min-height:40px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.summary{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--ink-2)}
.summary b{color:var(--ink);font-variant-numeric:tabular-nums}
.sort{display:flex;align-items:center;gap:6px;font-size:13px}
.sort select{min-height:40px;font-size:15px;border:1px solid var(--line-strong);border-radius:8px;padding:5px 8px;background:var(--surface)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{position:relative;cursor:pointer;background:var(--surface);border:1px solid var(--line);border-top:6px solid var(--ok);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;text-align:left;padding:0;box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s}
.card[data-s=ng]{border-top-color:var(--ng)}.card[data-s=warn]{border-top-color:var(--warn)}
.card-link{all:unset;cursor:pointer}
.card-link::after{content:"";position:absolute;inset:0}
.card-link:focus-visible{outline:none}
.card:has(.card-link:focus-visible){outline:3px solid var(--accent);outline-offset:2px}
.card:hover{transform:translateY(-2px);border-color:var(--accent)}
@media (prefers-reduced-motion:reduce){.card{transition:none}.card:hover{transform:none}}
.photo{aspect-ratio:5/2;max-width:100%;position:relative;display:grid;place-items:center;border-bottom:1px solid var(--line)}
.photo svg{height:50%;width:auto;max-width:42%}
.photo .ph{position:absolute;left:10px;top:8px;font-size:11.5px;font-weight:700;letter-spacing:.06em;color:var(--ink-2)}
.photo .stamp{position:absolute;right:10px;top:10px;font-size:14px;padding:4px 12px}
.photo .stamp::before,.badge:has(>span[aria-hidden])::before{display:none}
.card-body{padding:12px 14px 14px;display:grid;gap:5px;flex:1;align-content:start}
.card h3{font-size:15.5px}
.card .ing{font-size:12.5px;color:var(--ink-2);line-height:1.55}
.card .timing{font-size:12.5px;font-weight:700}.timing.t-ng{color:var(--ng)}.timing.t-warn{color:var(--warn)}
.card .perf-flag{font-size:12px;color:var(--warn);font-weight:700}
.card .foot{margin-top:6px;padding-top:8px;border-top:1px dashed var(--line)}

/* ---------- dialog ---------- */
dialog{border:0;border-radius:16px;padding:0;max-width:min(680px,calc(100vw - 24px));width:100%;max-height:calc(100dvh - 24px);background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.3)}
dialog[open]{display:flex;flex-direction:column}
dialog::backdrop{background:rgba(10,25,28,.55)}
.dlg-head{display:flex;gap:14px;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);flex:none}
.dlg-head .thumb{width:68px;height:68px;border-radius:12px;display:grid;place-items:center;flex:none}
.dlg-head .thumb svg{width:58%;height:auto}
.dlg-head h3{font-size:18px}
.dlg-head .x{margin-left:auto;align-self:flex-start;border:0;background:var(--surface-2);width:44px;height:44px;border-radius:50%;font-size:18px;flex:none}
.dlg-body{padding:16px 20px 22px;display:grid;gap:16px;overflow:auto}
.kv{display:grid;grid-template-columns:8em 1fr;gap:6px 12px;font-size:14px;margin:0}
.kv dt{color:var(--ink-2);font-size:12.5px;padding-top:2px}
.kv dd{margin:0}
@media (max-width:480px){.kv{grid-template-columns:1fr}.kv dt{padding-top:6px}}
.note{background:var(--surface-2);border-radius:10px;padding:10px 12px;font-size:14px}
.note.warnbox{background:var(--warn-bg)}
.note.warnbox b{color:var(--warn)}
.sect-title{font-size:15px;display:flex;align-items:center;gap:8px;justify-content:space-between}
.my-rating{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--accent-soft);border-radius:12px;padding:10px 14px}
.my-rating .lbl{font-size:13px;font-weight:700}
.comments{display:grid;gap:10px}
.comment{display:grid;grid-template-columns:32px 1fr;gap:10px;align-items:start}
.comment .meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--ink-2)}
.comment .meta b{color:var(--ink);font-size:13px}
.comment .role{border:1px solid var(--line);border-radius:6px;padding:0 6px;font-size:11px}
.comment p{margin:2px 0 0;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}
.comment .del{border:0;background:transparent;color:var(--ink-2);font-size:12px;text-decoration:underline;padding:6px 8px;min-height:32px}
.comment-form{display:grid;gap:8px}
.comment-form .row{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px;color:var(--ink-2)}
.login-cta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:var(--surface-2);border-radius:12px;padding:12px 14px;font-size:13.5px}

/* ---------- perf ---------- */
.perf-list{display:grid;gap:12px}
.perf{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:6px 24px}
.perf h3{font-size:16px}
.perf .who{font-size:12.5px;color:var(--ink-2);margin-top:4px}
.perf .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.tag{font-size:11.5px;border:1px solid var(--line);border-radius:6px;padding:1px 8px;color:var(--ink-2)}
.perf p{margin:0;font-size:14px}
.perf .advice{margin-top:6px;font-size:13.5px;color:var(--accent);font-weight:700}
.perf .links{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.linkchip{border:1px solid var(--line);background:var(--ground);border-radius:8px;padding:2px 9px;font-size:12px}
.linkchip:hover{border-color:var(--accent)}
@media (max-width:720px){.perf{grid-template-columns:1fr}}

/* ---------- memo ---------- */
.memo-grid{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:900px){.memo-grid{grid-template-columns:1fr}}
.memo-form{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;display:grid;gap:14px;box-shadow:var(--shadow)}
.memo-form h3{font-size:17px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.three-in{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (max-width:420px){.three-in{grid-template-columns:1fr 1fr}}
.rpe{display:grid;grid-template-columns:repeat(11,1fr);gap:3px}
.rpe button{min-height:40px;border:1.5px solid var(--line-strong);background:var(--surface);border-radius:7px;padding:6px 0;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.rpe button[aria-checked="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.rpe-label{font-size:12px;color:var(--ink-2);min-height:1.6em}
.faces{display:flex;gap:6px}
.faces button{flex:1;min-height:52px;border:1.5px solid var(--line-strong);background:var(--surface);border-radius:10px;padding:6px 0;font-size:12px;display:grid;justify-items:center;gap:1px}
.faces button svg{width:24px;height:24px}
.faces button[aria-checked="true"]{border-color:var(--accent);background:var(--accent-soft)}
.picker{position:relative}
.picker .sugg{position:absolute;left:0;right:0;top:100%;margin-top:4px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.12);z-index:5;max-height:260px;overflow:auto}
.picker .sugg button{display:flex;gap:8px;align-items:center;width:100%;border:0;background:transparent;text-align:left;padding:8px 12px;font-size:13.5px}
.picker .sugg button:hover,.picker .sugg button.hl{background:var(--surface-2)}
.picked{display:flex;flex-wrap:wrap;gap:6px}
.picked span{display:inline-flex;align-items:center;gap:6px;border-radius:8px;padding:3px 4px 3px 10px;font-size:12.5px;font-weight:700}
.picked button{border:0;background:transparent;font-size:17px;line-height:1;min-width:32px;min-height:32px;color:inherit}
.alertbox{border-radius:10px;padding:10px 12px;font-size:13px;background:var(--ng-bg);color:var(--ng)}
.alertbox.w{background:var(--warn-bg);color:var(--warn)}
.srpe{display:flex;align-items:baseline;gap:8px;background:var(--surface-2);border-radius:10px;padding:8px 12px;font-size:13px}
.srpe b{font-size:22px;font-variant-numeric:tabular-nums;font-family:"Zen Kaku Gothic Antique",sans-serif}
.mode-note{font-size:12.5px;border-radius:10px;padding:8px 12px;background:var(--accent-soft)}
.stats-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.stat .k{font-size:11.5px;color:var(--ink-2);font-weight:700;letter-spacing:.04em}
.stat .v{font-family:"Zen Kaku Gothic Antique",sans-serif;font-size:26px;font-weight:900;font-variant-numeric:tabular-nums;line-height:1.2}
.stat .v small{font-size:12px;color:var(--ink-2);font-weight:700;margin-left:2px}
.stat .s{font-size:12px}
.chart{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 14px 8px}
.chart svg{display:block;width:100%;height:auto}
.chart text{fill:var(--ink-2);font-size:10px;font-family:"BIZ UDPGothic",sans-serif}
.history{display:grid;gap:10px}
.mrow{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:grid;gap:4px}
.mrow .h{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.mrow .d{font-weight:700;font-variant-numeric:tabular-nums}
.mrow .t{font-weight:700}
.mrow .nums{display:flex;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.mrow .nums b{color:var(--ink)}
.mrow p{margin:0;font-size:13.5px;white-space:pre-wrap;overflow-wrap:anywhere}
.mrow .acts{display:flex;gap:6px;margin-left:auto}

/* ---------- quiz ---------- */
.quiz-wrap{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:18px;align-items:start}
@media (max-width:860px){.quiz-wrap{grid-template-columns:1fr}}
.qcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;display:grid;gap:16px;box-shadow:var(--shadow)}
.qmeta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-2);gap:8px;flex-wrap:wrap}
.progress{height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--accent);transition:width .3s}
.qtext{font-size:clamp(18px,2.4vw,22px);font-weight:700;font-family:"Zen Kaku Gothic Antique",sans-serif;line-height:1.5}
.opts{display:grid;gap:10px}
.opt{border:2px solid var(--line);background:var(--surface);border-radius:12px;padding:12px 14px;text-align:left;font-size:15px;display:flex;gap:10px;align-items:center}
.opt:hover:not(:disabled){border-color:var(--accent)}
.opt .k{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px;width:24px;height:24px;border-radius:6px;display:grid;place-items:center;background:var(--surface-2);flex:none}
.opt.correct{border-color:var(--ok);background:var(--ok-bg)}
.opt.wrong{border-color:var(--ng);background:var(--ng-bg)}
.opt:disabled{cursor:default}
.explain{border-left:4px solid var(--accent);background:var(--surface-2);padding:12px 14px;border-radius:0 10px 10px 0;font-size:14px}
.explain b{display:block;margin-bottom:2px}
.side{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;display:grid;gap:12px}
.side h3{font-size:15px}
.score{font-family:"Zen Kaku Gothic Antique",sans-serif;font-size:44px;font-weight:900;font-variant-numeric:tabular-nums;line-height:1}
.score small{font-size:16px;color:var(--ink-2)}

/* ---------- slides ---------- */
.deck{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.stage{aspect-ratio:16/9;max-width:100%;position:relative;background:#12343B;color:#F2F6F5;overflow:hidden;container-type:inline-size}
.stage:fullscreen{aspect-ratio:auto;width:100vw;height:100vh;display:grid;place-items:center}
.slide{position:absolute;inset:0;padding:5.5% 7%;display:none;flex-direction:column;justify-content:center;gap:3%;background:#12343B;color:#F2F6F5}
.slide.on{display:flex}
.slide .eyebrow{font-size:clamp(10px,1.6cqi,18px);letter-spacing:.14em;opacity:.88;font-weight:700}
.slide h2{font-size:clamp(18px,4.4cqi,48px);font-weight:900;color:inherit}
.slide p,.slide li{font-size:clamp(11px,2.1cqi,23px);line-height:1.6;margin:0}
.slide ul{margin:0;padding-left:1.2em;display:grid;gap:.4em}
.slide .big{font-size:clamp(34px,9cqi,110px);font-weight:900;font-family:"Zen Kaku Gothic Antique",sans-serif;line-height:1.05}
.slide .three{display:grid;grid-template-columns:repeat(3,1fr);gap:3%}
.slide .three div{border-radius:12px;padding:6% 7%;font-size:clamp(10px,1.9cqi,20px);line-height:1.5}
.slide .three b{display:block;font-size:1.2em;margin-bottom:.3em}
.s-ng{background:#B8322A;color:#fff}.s-ok{background:#2B7541;color:#fff}
.slide.light{background:#F2F6F5;color:#12343B}
.pn{position:absolute;right:3%;bottom:4%;font-family:"JetBrains Mono",ui-monospace,monospace;font-size:clamp(9px,1.3cqi,20px);opacity:.85}
.stage:fullscreen .slide p,.stage:fullscreen .slide li{font-size:2.7cqi}
.stage:fullscreen .slide h2{font-size:5.2cqi}
.stage:fullscreen .slide .three div{font-size:2.4cqi}
.stage:fullscreen .slide .big{font-size:10cqi}
.deck-bar{display:flex;align-items:center;gap:10px;padding:12px 14px;flex-wrap:wrap}
.deck-bar .spacer{flex:1}
.dots{display:flex;gap:6px;flex-wrap:wrap}
.dots button{width:24px;height:24px;border:0;background:none;padding:0;display:grid;place-items:center}
.dots button::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--line-strong)}
.dots button.on::before{background:var(--accent);transform:scale(1.25)}
.notes{font-size:14px;color:var(--ink-2);padding:0 16px 16px}
.notes b{color:var(--ink)}

/* ---------- about ---------- */
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
.cmp{width:100%;border-collapse:collapse;font-size:13.5px;background:var(--surface);min-width:560px}
.cmp th,.cmp td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp th{background:var(--surface-2);font-size:12px;letter-spacing:.04em}
.cmp tr:last-child td{border-bottom:0}
.legend{display:grid;gap:8px}
.legend div{display:flex;gap:10px;align-items:baseline;font-size:14px}
footer{border-top:1px solid var(--line);padding-block:20px;font-size:12px;color:var(--ink-2)}
footer .wrap{display:grid;gap:4px}

@media (max-width:560px){
  .brand-sub{display:none}
  .brand-name{font-size:16px}
  .acct-btn .nm{display:none}
  .acct-btn{padding:5px}
  .notice .more{display:none}
  .notice .short{display:inline}
  .rpe{grid-template-columns:repeat(6,1fr)}
  .login-btn .full{display:none}
}

/* ---------- v2 追加 ---------- */
.brand-note{background:var(--warn-bg);color:var(--ink);border-radius:12px;padding:10px 14px;font-size:13.5px}
.brand-note b{color:var(--warn)}
.sources{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;font-size:13px}
.linkchip .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:currentColor;margin-right:6px;padding:0;vertical-align:middle}
.linkchip .dot.b-ng{color:var(--ng)}.linkchip .dot.b-warn{color:var(--warn)}.linkchip .dot.b-ok{color:var(--ok)}
.linkchip{min-height:32px}
.perf.flash{animation:flash 1.6s ease}
@keyframes flash{0%,40%{box-shadow:0 0 0 3px var(--accent)}100%{box-shadow:none}}
@media (prefers-reduced-motion:reduce){.perf.flash{animation:none;box-shadow:0 0 0 3px var(--accent)}}
.c-ng{color:var(--ng)!important}.c-warn{color:var(--warn)!important}.c-ok{color:var(--ok)!important}
.err{margin:2px 0 0;font-size:12.5px;color:var(--ng);font-weight:700}
.input[aria-invalid="true"]{border-color:var(--ng)}
.hint{display:block;font-weight:400;font-size:11.5px}
.toggle{display:flex;align-items:center;gap:8px;min-height:44px;border:1.5px solid var(--line-strong);border-radius:10px;padding:0 12px;font-size:15px;cursor:pointer;background:var(--surface)}
.toggle input{width:20px;height:20px;accent-color:var(--accent)}
.train-fields{display:grid;gap:14px}
.memo-side{display:grid;gap:14px;align-content:start}
.memo-form .alertbox + .alertbox{margin-top:6px}
.acwr-note{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:13px}
.acwr-note summary{cursor:pointer;font-weight:700}
.acwr-note p{margin:8px 0 0;color:var(--ink-2)}
.event-bar:empty{display:none}
.event-form{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.event-form .input{width:auto;flex:0 1 200px}
.event-form .lbl{font-weight:700;font-size:13px}
.event-card{display:grid;gap:8px;background:var(--surface);border:1px solid var(--line);border-left:6px solid var(--accent);border-radius:12px;padding:12px 16px}
.event-card.soon{border-left-color:var(--warn)}
.event-card .lbl{font-size:12px;color:var(--ink-2);margin-right:8px}
.event-card .cd b{font-size:20px;font-family:"Zen Kaku Gothic Antique",sans-serif}
.event-card .btn{justify-self:start}
.opt .mark{margin-left:auto;font-weight:700;font-size:13px}
.opt.correct .mark{color:var(--ok)}.opt.wrong .mark{color:var(--ng)}
.missed{display:grid;gap:8px}
.missed h4{font-size:14px}
.materials{display:grid;gap:12px}
.mat h4{font-size:15px}
.plan{width:100%;border-collapse:collapse;font-size:13.5px}
.plan th,.plan td{border-bottom:1px solid var(--line);padding:6px 6px;text-align:left;vertical-align:top}
.plan th{font-size:12px;color:var(--ink-2)}
.plan td:nth-child(1),.plan td:nth-child(2){white-space:nowrap;font-weight:700}
.crit{grid-template-columns:1fr}
.crit dt{font-weight:700;color:var(--accent)}
.sheet-head{font-size:13px;border-bottom:1px solid var(--line-strong);padding-bottom:6px}
.sheet-q p{font-size:14px;margin:6px 0 4px;font-weight:700}
.sheet-q .lines{height:72px;background:repeating-linear-gradient(transparent 0 23px,var(--line) 23px 24px)}
.empty a{font-weight:700}

@media print{
  body.print-materials > header, body.print-materials > .notice, body.print-materials > footer,
  body.print-materials main > section:not(#p-slides), body.print-materials #p-slides > :not(.materials),
  body.print-materials #print-mat, body.print-materials .toast{display:none!important}
  body.print-materials{background:#fff;color:#000}
  body.print-materials #p-slides{display:block!important}
  body.print-materials .materials .cols{display:block}
  body.print-materials .panel{border:1px solid #999;break-inside:avoid;margin-bottom:12px;box-shadow:none}
  body.print-materials .sheet{break-before:page}
  body.print-materials .sheet-q .lines{height:110px;background:repeating-linear-gradient(#fff 0 27px,#999 27px 28px)}
}

.notice .short{display:none}
.comment .role .muted{font-size:10px}
ruby rt{font-size:.55em}

.classbox{border-top:1px solid var(--line);padding-top:10px;display:grid;gap:8px}
.classbox summary{cursor:pointer;font-weight:700;font-size:14px}
.classbox[open]{gap:10px}
.classbox p{margin:6px 0}
.tblwrap{overflow-x:auto}
.plan{min-width:520px}
.label-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.label-card{border:2px dashed var(--line-strong);border-radius:10px;padding:10px 12px;display:grid;gap:4px;background:var(--surface)}
.lc-kind{font-size:11.5px;color:var(--ink-2)}
.lc-name{font-weight:700;font-size:15px}
.lc-ing{font-size:13px}
.lc-ing b{display:block;font-size:11.5px;color:var(--ink-2)}
.answers summary{cursor:pointer;font-size:13px;font-weight:700}
.answers ol{margin:6px 0 0;padding-left:1.2em;font-size:13px}
@media print{
  body.print-materials .cards-panel{break-before:page}
  body.print-materials .answers{display:none}
  body.print-materials #mat-chips{display:none}
  body.print-materials .plan{min-width:0}
}

/* ---------- 学びを続けるしくみ ---------- */
.tab-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warn);margin-left:6px;vertical-align:middle}
.fact{display:grid;gap:6px;background:var(--surface);border:1px solid var(--line);border-left:6px solid var(--star);border-radius:14px;padding:14px 18px}
.fact-k{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--warn)}
.fact-t{margin:0;font-family:"Zen Kaku Gothic Antique",sans-serif;font-weight:900;font-size:clamp(17px,2.2vw,21px);line-height:1.45}
.fact-d p{margin:0 0 8px;font-size:14px}
.fact-acts{display:flex;gap:8px;flex-wrap:wrap}
.predict-toggle{margin-left:auto}
.predict-toggle[aria-pressed="true"]{background:var(--warn-bg);border-color:var(--warn);color:var(--warn)}
.toolbar .predict-toggle{order:2}
.grid.predict .photo .stamp,.grid.predict .timing{visibility:hidden}
.grid.predict .card{border-top-color:var(--line-strong)}
.grid.predict .photo::after{content:"？";position:absolute;right:14px;top:6px;font:900 26px/1 "Zen Kaku Gothic Antique",sans-serif;color:var(--warn)}
dialog.guessing #dlg-badge,dialog.guessing .dlg-body{visibility:hidden;max-height:120px;overflow:hidden}
.guess-box{padding:12px 20px;border-bottom:1px solid var(--line);background:var(--warn-bg)}
.guess-box p{margin:0 0 8px}
.opts.guess{grid-template-columns:repeat(3,1fr)}
.opts.guess .opt{justify-content:center;flex-wrap:wrap}
@media (max-width:480px){#qcard .opts.guess{grid-template-columns:1fr}}
.hub{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:14px 20px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
@media (max-width:720px){.hub{grid-template-columns:1fr}}
.hub-main,.hub-side{display:grid;gap:8px;align-content:start}
.lv{display:flex;align-items:baseline;gap:10px}
.lv-n{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:13px;background:var(--ink);color:var(--surface);border-radius:6px;padding:1px 8px}
.lv b{font-family:"Zen Kaku Gothic Antique",sans-serif;font-size:22px;font-weight:900}
.xpbar{height:12px;background:var(--surface-2);border-radius:999px;overflow:hidden}
.xpbar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--star));border-radius:999px;transition:width .5s ease}
.streak{display:flex;align-items:center;gap:10px}
.streak svg{width:36px;height:36px;flex:none}
.streak b{font-size:26px;font-family:"Zen Kaku Gothic Antique",sans-serif}
.badges{grid-column:1/-1}
.badges summary{cursor:pointer;font-weight:700}
.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px;margin-top:10px}
.bdg{display:grid;gap:3px;border:1.5px dashed var(--line-strong);border-radius:12px;padding:10px 12px;font-size:12.5px;opacity:.85}
.bdg b{font-size:14px}
.bdg.got{border-style:solid;border-color:var(--star);background:color-mix(in srgb,var(--star) 12%,var(--surface));opacity:1}
.bdg .ok{color:var(--ok);font-weight:700}
.bdg .prog{height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden}
.bdg .prog i{display:block;height:100%;background:var(--accent)}
.modes .chip{font-weight:700}
.pcard{display:flex;gap:14px;align-items:center}
.pthumb{width:72px;height:72px;border-radius:12px;display:grid;place-items:center;flex:none}
.pthumb svg{width:58%;height:auto}
.celebrate{position:fixed;left:50%;top:calc(80px + env(safe-area-inset-top,0px));transform:translateX(-50%);z-index:120;display:flex;align-items:center;gap:12px;background:var(--surface);color:var(--ink);border:2px solid var(--star);border-radius:16px;padding:12px 18px;box-shadow:0 12px 32px rgba(0,0,0,.18);animation:pop .45s cubic-bezier(.2,1.4,.4,1);max-width:calc(100vw - 32px)}
.celebrate svg{width:40px;height:40px;flex:none}
.celebrate div{display:grid}
.celebrate span{font-size:12.5px;color:var(--ink-2)}
.celebrate.out{opacity:0;transition:opacity .5s}
@keyframes pop{from{transform:translateX(-50%) scale(.6);opacity:0}to{transform:translateX(-50%) scale(1);opacity:1}}
@media (prefers-reduced-motion:reduce){.celebrate{animation:none}.xpbar i{transition:none}}
.perf-me{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.perf.mine{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}
.mine-tag{display:inline-block;font-size:11.5px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:1px 8px;margin-bottom:4px}
.quiz-wrap.solo{grid-template-columns:1fr;max-width:820px}
.hub-ask{grid-column:1/-1;display:grid;gap:8px}
.hub-ask p{margin:0}
.mastery summary{cursor:pointer;font-size:13px;font-weight:700}
.m-grid{display:grid;gap:4px;margin-top:6px}
.m-row{display:grid;grid-template-columns:5.5em 1fr 3em;gap:8px;align-items:center;font-size:12.5px}
.m-row .prog{height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden}
.m-row .prog i{display:block;height:100%;background:var(--accent)}
.hub-event{font-size:13px;background:var(--accent-soft);border-radius:10px;padding:6px 10px}
.hub-event.soon{background:var(--warn-bg);color:var(--warn)}
.hub-event b{font-size:18px}
.team{display:grid;gap:4px;border-top:1px dashed var(--line);padding-top:8px}
.team-bar i{background:linear-gradient(90deg,var(--ok),var(--accent))}
.mybox{grid-column:1/-1;display:grid;gap:6px;border-top:1px solid var(--line);padding-top:12px}
.mybox h4{font-size:15px}
.mybox ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.mybox li{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.mybox .del{border:0;background:transparent;color:var(--ink-2);font-size:12px;text-decoration:underline;min-height:32px}
.hub-set{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center}
.linkbtn{border:0;background:transparent;color:var(--accent);text-decoration:underline;font-size:12.5px;padding:4px 0;min-height:32px}
.ox{min-width:64px;min-height:48px;font-size:24px;font-weight:900;font-family:"Zen Kaku Gothic Antique",sans-serif;border:2px solid var(--line-strong);background:var(--surface)}
.ox:hover:not(:disabled){border-color:var(--accent)}
.fact-act{font-weight:700;color:var(--accent);font-size:14px}
.box-btn{justify-self:start}
.checklist{display:none}
@media print{
  body.print-checklist > :not(.checklist){display:none!important}
  body.print-checklist .checklist{display:block;color:#000;background:#fff;padding:0 8mm;font-size:12pt}
  .checklist h2{font-size:18pt;margin:0 0 6px}
  .checklist table{width:100%;border-collapse:collapse;margin:10px 0}
  .checklist th,.checklist td{border:1px solid #666;padding:5px 6px;text-align:left;vertical-align:top}
}