/* Shared base. Radius rule: controls 10px, panels 16px, chips full. */
:root{
  --bg:#f6f5f3;--surface:#fdfdfc;--surface-2:#efeeeb;--text:#1c1b19;--muted:#5d5a55;--line:#e3e1dc;
  --accent:#0f766e;--accent-ink:#fff;--accent-soft:color-mix(in oklab,var(--accent) 12%,transparent);
  --accent-fg:color-mix(in oklab,var(--accent) 78%,#000); /* accent as text: keeps 4.5:1 on tinted backgrounds */
  --r-ctl:10px;--r-panel:16px;--shadow:0 1px 2px color-mix(in oklab,var(--text) 6%,transparent),0 8px 24px -12px color-mix(in oklab,var(--text) 14%,transparent);
  --font:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{--bg:#121211;--surface:#1b1b1a;--surface-2:#252523;--text:#efeee9;--muted:#a8a59e;--line:#2f2e2b;--accent-fg:color-mix(in oklab,var(--accent) 50%,#fff)}}
:root:lang(ja){--font:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic",Meiryo,"Noto Sans JP",system-ui,sans-serif}
:root:lang(zh){--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;word-break:keep-all;overflow-wrap:anywhere}
:lang(ja) body,:lang(zh) body,body:lang(ja),body:lang(zh){word-break:normal;line-break:strict}
a{color:inherit}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:8px;background:var(--surface);padding:8px 12px;z-index:30}
.top{position:sticky;top:0;z-index:20;background:color-mix(in oklab,var(--bg) 88%,transparent);backdrop-filter:saturate(160%) blur(10px);-webkit-backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;text-decoration:none;letter-spacing:-.02em;white-space:nowrap}
.nav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0}
.nav::-webkit-scrollbar{display:none}
@media (max-width:640px){.nav{-webkit-mask-image:linear-gradient(90deg,#000 85%,transparent);mask-image:linear-gradient(90deg,#000 85%,transparent)}.brand span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}}
.nav a{padding:6px 10px;border-radius:999px;text-decoration:none;color:var(--muted);font-size:15px;white-space:nowrap}
.nav a:hover{color:var(--text);background:var(--surface-2)}
.nav a[aria-current]{color:var(--accent-fg);background:var(--accent-soft);font-weight:600}
.langs{position:relative;flex:none}
.langs summary{list-style:none;display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);border:1px solid var(--line);padding:5px 10px;border-radius:999px;cursor:pointer;white-space:nowrap;user-select:none}
.langs summary::-webkit-details-marker{display:none}
.langs[open] summary{color:var(--text);background:var(--surface-2)}
.langs-menu{position:absolute;right:0;top:calc(100% + 6px);min-width:150px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-ctl);box-shadow:var(--shadow);padding:4px;display:grid;z-index:30}
.langs-menu a{padding:8px 12px;border-radius:8px;text-decoration:none;font-size:15px;white-space:nowrap}
.langs-menu a:hover{background:var(--surface-2)}
.langs-menu a[aria-current]{color:var(--accent-fg);font-weight:700}
@media (max-width:640px){.langs summary span{display:none}.langs summary{padding:7px}}
main.wrap{padding-top:28px;padding-bottom:64px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.layout.wide{grid-template-columns:minmax(0,1fr)}
@media (max-width:960px){.layout{grid-template-columns:minmax(0,1fr)}.side{order:2}}
.intro{margin-bottom:20px}
h1{font-size:clamp(26px,3.4vw,36px);line-height:1.25;letter-spacing:-.03em;margin:0 0 8px;font-weight:800}
.lead{color:var(--muted);margin:0;max-width:62ch}
h2{font-size:21px;letter-spacing:-.02em;margin:40px 0 12px;line-height:1.35}
h3{font-size:17px;margin:24px 0 8px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);padding:20px;box-shadow:var(--shadow)}
@media (max-width:600px){.panel{padding:16px}}
label,.label{display:block;font-size:14px;font-weight:600;margin:0 0 6px}
.hint{font-size:13px;color:var(--muted);margin-top:6px}
input[type=text],input[type=number],input[type=date],input[type=search],select,textarea{width:100%;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:var(--r-ctl);padding:10px 12px;min-height:44px}
textarea{resize:vertical;line-height:1.5}
input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.field{margin-bottom:16px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px 16px}
@media (max-width:600px){.grid2,.grid3{grid-template-columns:1fr}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:700;border:0;border-radius:var(--r-ctl);padding:12px 20px;min-height:46px;cursor:pointer;background:var(--accent);color:var(--accent-ink);text-decoration:none;transition:transform .15s cubic-bezier(.16,1,.3,1),filter .15s;white-space:nowrap}
.btn:hover{filter:brightness(1.06)}.btn:active{transform:translateY(1px) scale(.99)}
.btn.ghost{background:var(--surface-2);color:var(--text)}
.btn.sm{padding:8px 12px;min-height:36px;font-size:14px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.seg{display:inline-flex;background:var(--surface-2);border-radius:var(--r-ctl);padding:3px;gap:2px}
.seg button{font:inherit;font-size:14px;border:0;background:transparent;color:var(--muted);padding:7px 12px;border-radius:8px;cursor:pointer}
.seg button[aria-pressed=true]{background:var(--surface);color:var(--text);font-weight:700;box-shadow:var(--shadow)}
.result{margin-top:20px}
.big{font-size:clamp(30px,5vw,44px);font-weight:800;letter-spacing:-.03em;line-height:1.15;color:var(--accent);font-variant-numeric:tabular-nums}
.kv{display:grid;grid-template-columns:1fr auto;gap:8px 0;margin:16px 0 0;font-variant-numeric:tabular-nums}
.kv dt{color:var(--muted)}.kv dd{margin:0;padding-left:16px;text-align:right;font-weight:600}
.kv .sum{border-top:1px solid var(--line);padding-top:10px;font-weight:800;color:var(--text)}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:15px}
th,td{padding:9px 10px;text-align:right}
th:first-child,td:first-child{text-align:left}
thead th{font-size:13px;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line)}
tbody tr:nth-child(even){background:var(--surface-2)}
.tablewrap{overflow-x:auto;border-radius:var(--r-ctl);border:1px solid var(--line)}
.prose{max-width:68ch}
.prose p,.prose li{color:color-mix(in oklab,var(--text) 86%,var(--bg))}
.prose ul,.prose ol{padding-left:20px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"-"}
.faq details div{color:var(--muted);margin-top:8px}
.side{position:sticky;top:84px;display:grid;gap:16px}
.side h2{font-size:15px;margin:0 0 8px;color:var(--muted)}
.links{display:grid;gap:2px}
.links a{display:block;padding:9px 12px;border-radius:var(--r-ctl);text-decoration:none}
.links a:hover{background:var(--surface-2)}
.links a[aria-current]{background:var(--accent-soft);color:var(--accent-fg);font-weight:700}
.ad{margin:24px 0;min-height:100px}
.foot{border-top:1px solid var(--line);padding:32px 0 40px;font-size:14px;color:var(--muted)}
.foot-net p{margin:0 0 10px;font-weight:700;color:var(--text)}
.net{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px}
.net a{text-decoration:none;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-ctl);display:grid;color:var(--text);font-weight:600}
.net a span{font-weight:400;color:var(--muted);font-size:13px}
.foot-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px}
.foot-meta a{text-decoration:none}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--text);color:var(--bg);padding:10px 16px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:40}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:var(--surface-2);font-size:14px;border:0;font:inherit;color:inherit;cursor:pointer;text-decoration:none}
.empty{color:var(--muted);text-align:center;padding:28px 12px;border:1px dashed var(--line);border-radius:var(--r-panel)}
.err{color:#c2410c;font-size:14px;margin-top:6px}
@media (prefers-color-scheme:dark){.err{color:#fb923c}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
/* share sheet */
.share-tool{margin:20px 0 0}
.share-tool .chip svg{flex:none}
.vs-banner{margin:12px 0 0;padding:10px 14px;border-radius:var(--r-ctl);background:var(--accent-soft);color:var(--text);font-weight:700}
.sh-back{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;padding:16px}
.sh-box{position:relative;width:min(420px,100%);max-height:calc(100dvh - 32px);overflow:auto;background:var(--surface);color:var(--text);border-radius:var(--r-panel);padding:20px;box-shadow:var(--shadow);display:grid;gap:14px}
.sh-x{position:absolute;top:8px;right:8px;width:36px;height:36px;border:0;border-radius:999px;background:var(--surface-2);color:inherit;font-size:22px;line-height:1;cursor:pointer}
.sh-h{margin:4px 40px 0 0;font-weight:700}
.sh-img{aspect-ratio:1;border-radius:12px;overflow:hidden;background:var(--surface-2);margin-top:28px;display:grid;place-items:center}
.sh-img img{width:100%;height:100%;display:block}
.sh-load{width:28px;height:28px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:shspin .8s linear infinite}
@keyframes shspin{to{transform:rotate(360deg)}}
.sh-acts{display:flex;flex-wrap:wrap;gap:8px}.sh-acts .btn{flex:1 1 auto}
.sh-sns{justify-content:center}
@media (prefers-reduced-motion:reduce){.sh-load{animation:none}}
/* friend ranking rooms */
.rank{margin:24px 0 0;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-panel);background:var(--surface);box-shadow:var(--shadow)}
.rank-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 12px;margin-bottom:10px}
.rank h2{margin:0;font-size:18px;display:flex;align-items:center;gap:8px;min-width:0}
.rank h2 span{overflow-wrap:anywhere}
.rank h2 svg{flex:none;color:var(--accent-fg)}
.rank-meta{font-size:14px;color:var(--muted)}
.rank-lead{margin:0 0 12px;color:var(--muted)}
.rank-note{margin:0 0 12px;padding:10px 12px;border-radius:var(--r-ctl);background:var(--accent-soft)}
.rank-list{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:4px;max-height:440px;overflow:auto}
.rank-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto 32px;align-items:center;gap:10px;min-height:44px;padding:6px 8px 6px 10px;border-radius:var(--r-ctl);background:var(--surface-2)}
.rank-row.me{background:var(--accent-soft);box-shadow:inset 0 0 0 2px var(--accent)}
.rank-no{min-width:30px;height:30px;display:grid;place-items:center;padding:0 6px;border-radius:999px;font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;background:var(--bg);border:1px solid var(--line)}
.rank-row:nth-child(1) .rank-no{background:#fde68a;color:#713f12;border-color:#ca9a12}
.rank-row:nth-child(2) .rank-no{background:#e5e7eb;color:#1f2937;border-color:#9ca3af}
.rank-row:nth-child(3) .rank-no{background:#fed7aa;color:#7c2d12;border-color:#c2703d}
.rank-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.rank-name em{font-style:normal;font-size:12px;font-weight:700;color:var(--accent-fg);margin-left:6px;padding:1px 7px;border-radius:999px;border:1px solid currentColor}
.rank-score{font-weight:800;font-variant-numeric:tabular-nums;white-space:nowrap}
.rank-del{width:32px;height:32px;border:0;border-radius:999px;background:transparent;color:var(--muted);font-size:20px;line-height:1;cursor:pointer}
.rank-del:hover{background:var(--bg);color:var(--text)}
.rank-me{margin:0 0 12px;font-weight:700}
.rank-join{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:flex-start;margin:0 0 12px}
.rank-join .field{flex:1 1 200px;margin:0}
.rank-join .btn{margin-top:28px}
.rank-acts{margin-top:4px}
.rank-sub{font-size:15px;margin:16px 0 4px}
.rank-mine{margin:4px 0 0;padding-left:20px}
.rank-mine a{display:inline-block;padding:4px 0}
.rank .hint{margin:12px 0 0}
.rank-dlg .field{margin:0}
.rank-dlg .hint{margin:0}
.rank-chk{display:flex;gap:10px;align-items:center;font-weight:500;margin:0}
.rank-chk input{width:20px;height:20px;flex:none}
.sh-rank{flex-basis:100%!important}
@media (max-width:600px){.rank{padding:16px}.rank-join .btn{margin-top:0;width:100%}}
@media (forced-colors:active){.rank-row.me{outline:2px solid Highlight}}
.rank-dlg form{display:grid;gap:14px}

/* ==== discovery strip: core/discovery.mjs (2026-10-13). Static, not sticky; 44px targets; pills drawn by ::before. ==== */
.disc{--disc-fg:color-mix(in oklab,var(--accent) 68%,var(--text));background:var(--surface);border-bottom:1px solid var(--line);font-size:14px;line-height:1.25}
.disc-in{display:grid;grid-template-columns:auto minmax(0,1fr) auto;grid-template-areas:"lbl list all";align-items:center;gap:0 14px;padding-top:2px;padding-bottom:2px}
.disc-lbl{grid-area:lbl;display:flex;align-items:center;gap:8px;min-height:44px;margin:0;font-size:13px;font-weight:700;color:var(--muted);white-space:nowrap}
.disc-mark{flex:none;fill:var(--accent)}
.disc-list{grid-area:list;display:flex;flex-wrap:wrap;gap:0 6px;min-width:0;margin:0;padding:0;list-style:none}
.disc-list li{margin:0;padding:0}
.disc-list a,.disc-all{position:relative;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;min-height:44px;text-decoration:none;white-space:nowrap}
.disc-list a{padding:0 14px;color:var(--text);font-weight:600}
.disc-list a::before,.disc-all::before{content:"";position:absolute;inset:6px 0;z-index:-1;border:1px solid var(--line);border-radius:999px;background:var(--bg)}
.disc-all{grid-area:all;gap:6px;padding:0 14px 0 16px;color:var(--disc-fg);font-weight:700}
.disc-all::before{border-color:color-mix(in oklab,var(--accent) 40%,var(--line));background:color-mix(in oklab,var(--accent) 10%,var(--surface))}
.disc-arrow{flex:none;transition:transform .15s}
.disc-list a:hover::before{border-color:color-mix(in oklab,var(--accent) 45%,var(--line));background:color-mix(in oklab,var(--accent) 8%,var(--bg))}
.disc-all:hover::before{background:color-mix(in oklab,var(--accent) 18%,var(--surface))}
.disc-all:hover .disc-arrow{transform:translateX(2px)}
.disc a:focus-visible{outline:none}
.disc a:focus-visible::before{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:640px){
  .disc-in{grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"lbl all" "list list";gap:0 8px;padding-top:0;padding-bottom:6px}
  .disc-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .disc-list a{display:flex;height:100%;padding:0 6px;font-size:13px;line-height:1.2;text-align:center;white-space:normal;overflow-wrap:normal;word-break:keep-all}
  .disc-list a::before{inset:2px 0}
  .disc-all{font-size:13px;padding:0 12px}
}
:lang(ja) .disc-list a,:lang(zh) .disc-list a{word-break:normal}
@media (forced-colors:active){.disc-list a::before,.disc-all::before{border-color:CanvasText}.disc a:focus-visible::before{outline-color:Highlight}}
@media print{.disc{display:none}}
/* ==== /discovery strip ==== */