:root{
  --bg:#F4F1EA; --card:#FFFFFF; --soft:#FAF8F3; --line:#E2DCCF; --line2:#EEE9DF; --field:#D5CEBF;
  --ink:#1B2433; --muted:#5C6470; --chip:#EFEBE2; --tile:#EAEEF5; --ph:#DDD6C8;
  --accent:#22407A; --accent-ink:#22407A; --on-accent:#FFFFFF; --danger:#A33F2A;
  --ok-bg:#E7F1EA; --ok-ink:#1F4D37; --ng-bg:#F7E6E1;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#15191F; --card:#1E242C; --soft:#232A33; --line:#323A45; --line2:#2A313B; --field:#3E4754;
    --ink:#ECEFF3; --muted:#A3ABB6; --chip:#2B323C; --tile:#26314A; --ph:#2E3540;
    --accent:#3B5FA3; --accent-ink:#9DB8EC; --on-accent:#FFFFFF; --danger:#E08A76;
    --ok-bg:#1F3329; --ok-ink:#A6D9BA; --ng-bg:#3A2622;
  }
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Zen Kaku Gothic New","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.6}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent-ink);outline-offset:2px}
img{max-width:100%;display:block}
.wrap{max-width:960px;margin:0 auto;padding:16px 20px 48px}
@media (min-width:700px){.wrap{padding:28px 40px 64px}}
.muted{color:var(--muted)}
.small{font-size:13px}
.nav{display:flex;justify-content:space-between;align-items:center;min-height:48px;margin-bottom:8px;gap:12px}
.back{display:inline-flex;align-items:center;gap:4px;min-height:44px;font-weight:500;font-size:16px}
.who{display:flex;align-items:center;gap:6px;font-size:14px;margin:0}
.org{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:.08em}
h1{margin:4px 0 0;font-family:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;font-weight:700;letter-spacing:.04em;line-height:1.25;font-size:30px;overflow-wrap:anywhere}
@media (min-width:700px){h1{font-size:40px}.org{font-size:15px}}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;padding-bottom:20px;margin-bottom:24px;border-bottom:1px solid var(--line)}
.flash{padding:12px 16px;border-radius:12px;background:var(--ok-bg);color:var(--ok-ink);font-weight:700;font-size:14px;margin:0 0 16px}
.flash.ng{background:var(--ng-bg);color:var(--danger)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 22px;border-radius:14px;border:1px solid var(--field);background:var(--card);font-size:16px;font-weight:500;cursor:pointer;text-align:center}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);font-weight:700;font-size:17px}
.btn.danger{color:var(--danger);border-color:var(--danger);background:transparent}
.btn.sm{min-height:44px;padding:0 16px;font-size:15px}
.btn.block{width:100%}
.btn:disabled{opacity:.55;cursor:default}
.linkbtn{background:none;border:none;color:var(--accent-ink);font-weight:700;font-size:14px;min-height:40px;padding:0 8px;cursor:pointer}
.linkbtn.danger{color:var(--danger)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px}
@media (min-width:700px){.card{border-radius:20px;padding:24px}}
.card h2{margin:0 0 14px;font-size:15px;font-weight:700;color:var(--accent-ink);letter-spacing:.06em}
.stack{display:flex;flex-direction:column;gap:16px}
.inline{display:inline}
/* portal */
.feature{display:flex;align-items:center;gap:16px;padding:20px;border-radius:20px;background:var(--accent);color:var(--on-accent);margin-top:8px}
.feature .ic{width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.feature b{display:block;font-size:20px}
.feature small{display:block;font-size:13px;opacity:.9}
.grow{flex:1;min-width:0}
.menu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}
@media (min-width:700px){.menu{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}}
.tile{min-height:118px;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:16px;display:flex;flex-direction:column;gap:10px}
.tile .ic{width:44px;height:44px;border-radius:12px;background:var(--tile);color:var(--accent-ink);display:flex;align-items:center;justify-content:center}
.tile b{font-size:17px;display:block}
.tile small{font-size:12px;color:var(--muted);display:block}
/* lists */
.list{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.lhead{display:none}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;padding:14px 12px 14px 16px;border-top:1px solid var(--line2)}
.list > .row:first-child,.lhead + .row{border-top:none}
.rname{font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
.rmeta{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap}
.pill{padding:1px 8px;border-radius:10px;background:var(--chip);font-size:12px;color:var(--ink)}
.pill.off{background:var(--ng-bg);color:var(--danger)}
.pill.on{background:var(--ok-bg);color:var(--ok-ink)}
.rcol{display:none}
.acts{display:flex;gap:8px}
.act{width:56px;min-height:54px;border-radius:12px;background:var(--tile);color:var(--accent-ink);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;font-size:10px;font-weight:700;line-height:1.2}
.act .n{font-size:11px;font-weight:500;opacity:.85}
@media (min-width:700px){
  .list{border-radius:20px}
  .lhead,.row{grid-template-columns:minmax(0,1fr) 124px 100px 260px;gap:16px;padding:14px 24px}
  .lhead{display:grid;background:var(--soft);border-bottom:1px solid var(--line);font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em}
  .row .rmeta{display:none}
  .rcol{display:block;font-size:15px}
  .rname{font-size:17px}
  .acts{justify-content:flex-end}
  .act{width:auto;min-height:46px;flex-direction:row;gap:6px;padding:0 14px;font-size:15px}
  .act .n{font-size:14px}
}
.empty{padding:40px 20px;text-align:center;color:var(--muted)}
.search{display:flex;gap:8px;margin-bottom:16px}
.search .in{flex:1}
.pager{display:flex;justify-content:center;gap:8px;margin-top:16px}
/* forms */
label.f{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700}
.in{height:50px;padding:0 14px;border:1px solid var(--field);border-radius:10px;background:var(--card);font-size:16px;width:100%}
textarea.in{height:auto;padding:12px 14px;line-height:1.6;resize:vertical}
.hint{font-size:12px;color:var(--muted);font-weight:400}
.g2{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}
@media (min-width:700px){.g2{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}}
.phases{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}
@media (min-width:700px){.phases{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}}
.phase{display:flex;flex-direction:column;gap:6px}
@media (min-width:700px){.phase{padding:16px;border-radius:14px;background:var(--soft)}}
.phase .t{font-size:13px;font-weight:700}
.se{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media (min-width:700px){.se{grid-template-columns:minmax(0,1fr)}}
.se label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative;display:inline-flex}
.chip input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.chip span{min-height:44px;padding:0 16px;border-radius:22px;border:1px solid var(--field);background:var(--card);font-size:15px;display:flex;align-items:center}
.chip input:checked + span{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.chip input:focus-visible + span{outline:3px solid var(--accent-ink);outline-offset:2px}
.formbtns{display:flex;flex-direction:column;gap:10px}
@media (min-width:700px){.formbtns{flex-direction:row-reverse;justify-content:flex-start}}
.err{color:var(--danger);font-size:14px;font-weight:700;margin:0}
/* detail */
.meta{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:14px;margin-top:6px}
.tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:20px 0}
.tab{min-height:60px;border-radius:14px;border:1px solid var(--line);background:var(--card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:13px;font-weight:700}
.tab[aria-current="page"]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
@media (min-width:700px){.tab{flex-direction:row;gap:10px;font-size:17px}}
.photobar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
@media (min-width:700px){.grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}}
.ph{aspect-ratio:1/1;border-radius:10px;background:var(--ph);overflow:hidden;display:block}
.ph img{width:100%;height:100%;object-fit:cover}
.cm{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:6px}
.cm .top{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);gap:8px}
.cm .whoname{font-weight:700;color:var(--ink);font-size:14px}
.cm .txt{font-size:15px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}
.cm .ops{display:flex;justify-content:flex-end;gap:4px}
.dl{display:grid;grid-template-columns:96px minmax(0,1fr);row-gap:10px;column-gap:12px;font-size:15px;margin:0}
.dl dt{color:var(--muted);font-size:13px}
.dl dd{margin:0;overflow-wrap:anywhere}
.two{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
@media (min-width:700px){.two{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tag{padding:6px 12px;border-radius:16px;background:var(--tile);font-size:14px}
.cardhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:12px}
.cardhead h2{margin:0}
/* lightbox */
.lb{position:fixed;inset:0;background:rgba(10,12,16,.92);display:flex;flex-direction:column;z-index:10;padding:env(safe-area-inset-top,0px) 0 env(safe-area-inset-bottom,0px)}
.lb .bar{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;gap:8px}
.lb .bar button{min-height:44px;padding:0 16px;border-radius:12px;border:1px solid rgba(255,255,255,.35);background:transparent;color:#fff;font-size:15px;cursor:pointer}
.lb .bar .del{color:#F2A08F;border-color:#F2A08F}
.lb .img{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:8px}
.lb .img img{max-height:100%;max-width:100%;object-fit:contain}
/* docs / share */
.share{display:flex;gap:8px;flex-wrap:wrap}
.share .in{flex:1;min-width:0;font-size:14px}
.files .row{grid-template-columns:auto minmax(0,1fr) auto}
@media (min-width:700px){.files .row{grid-template-columns:auto minmax(0,1fr) auto;padding:14px 24px}}
.ficon{width:44px;height:44px;border-radius:12px;background:var(--tile);color:var(--accent-ink);display:flex;align-items:center;justify-content:center}
.preview{margin-top:12px;border-radius:12px;overflow:hidden;background:var(--soft);border:1px solid var(--line)}
.preview iframe{width:100%;height:70vh;border:0;display:block}
.preview img{margin:0 auto}
.preview audio,.preview video{width:100%;display:block}
.login{max-width:420px;margin:40px auto 0}
table.users{width:100%;border-collapse:collapse;font-size:14px}
.tablewrap{overflow-x:auto}
table.users th,table.users td{padding:12px 10px;border-bottom:1px solid var(--line2);text-align:left;vertical-align:middle;white-space:nowrap}
table.users th{color:var(--muted);font-size:12px}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}
/* イベント資料 */
.fcat-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.fcat-head h3{margin:0;font-size:15px;font-weight:700}
.upl{position:relative;overflow:hidden}
.upl input{position:absolute;inset:0;opacity:0;cursor:pointer;font-size:0}
.files .acts{align-items:center}
.uploading{opacity:.6;pointer-events:none}