:root{--bg:#fff;--fg:#1c1c1e;--sub:#6b6b70;--line:#e2e2e6;--panel:#f2f2f5;--me:#dbeafe;--mefg:#10305f;--accent:#2563eb;--warnbg:#fff7e0;--warnfg:#6b4e00;--danger:#c0392b;color-scheme:light}
[data-theme=dark]{--bg:#161618;--fg:#f2f2f4;--sub:#a0a0a8;--line:#303036;--panel:#26262b;--me:#1e3a66;--mefg:#dbe8ff;--accent:#5b9bff;--warnbg:#3a3118;--warnfg:#f3dc9a;--danger:#ff7a6b;color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%}
body{font:16px/1.5 -apple-system,"Hiragino Sans","Yu Gothic",sans-serif;background:var(--bg);color:var(--fg);display:flex;flex-direction:column;height:100dvh}
button,input,textarea{font:inherit;color:inherit}
button{background:transparent;border:0.5px solid var(--line);border-radius:8px;padding:0 12px;height:40px;cursor:pointer}
input,textarea{background:var(--bg);border:0.5px solid var(--line);border-radius:8px;padding:8px 10px;font-size:16px}
.bad{border:1.5px solid var(--danger)}
#login,#nm{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}
#pin{width:9em;height:52px;font-size:26px;text-align:center;letter-spacing:.3em}
#name{width:12em;height:52px;font-size:22px;text-align:center}
#chat{flex:1;display:flex;flex-direction:column;min-height:0}
#top{display:flex;align-items:center;gap:8px;padding:8px 12px;padding-top:calc(8px + env(safe-area-inset-top));border-bottom:0.5px solid var(--line);font-size:13px;color:var(--sub)}
#online{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#theme,#out{height:34px;font-size:13px;padding:0 10px}
#log{flex:1;overflow-y:auto;padding:8px 12px;min-height:0;-webkit-overflow-scrolling:touch}
.dv{text-align:center;font-size:12px;color:var(--sub);margin:14px 0 4px}
.row{display:flex;flex-direction:column;align-items:flex-start;margin:10px 0}
.row.me{align-items:flex-end}
.meta{font-size:12px;color:var(--sub);margin:0 4px 2px}
.bub{max-width:82%;padding:8px 12px;border-radius:14px;background:var(--panel);white-space:pre-wrap;word-break:break-word;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.bub a{color:var(--accent);-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}
.me .bub{background:var(--me);color:var(--mefg)}
.me .bub a{color:inherit;text-decoration:underline}
.q{font-size:12px;color:var(--sub);border-left:2px solid var(--line);padding-left:8px;margin:0 0 4px;white-space:normal;cursor:pointer}
.me .q{color:inherit;opacity:.8}
.gone .bub{background:transparent;border:0.5px dashed var(--line);color:var(--sub);font-size:14px}
.flash .bub{outline:2px solid #f90}
#rbar{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:6px 12px;font-size:13px;background:var(--warnbg);color:var(--warnfg)}
#rbar span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#rx{border:0;height:28px;width:28px;padding:0;font-size:18px}
#st{padding:6px 12px;font-size:13px;color:var(--danger)}
#f{display:flex;gap:8px;align-items:flex-end;padding:8px 12px calc(8px + env(safe-area-inset-bottom));border-top:0.5px solid var(--line)}
#msg{flex:1;min-width:0;resize:none;max-height:140px;line-height:1.4;padding:10px}
#go{height:44px;width:48px;padding:0;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border:0}
#go:disabled{opacity:.5}
#sheet{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:flex-end;justify-content:center;z-index:10}
#sheetbox{width:min(480px,100%);background:var(--bg);border-radius:14px 14px 0 0;padding:10px 12px calc(10px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:8px}
#sheetbox button{height:50px;font-size:17px}
#sheetbox .danger{color:var(--danger)}