:root{--bg:#2b2c30;--s1:#232427;--rail:#1a1b1d;--s2:#34363b;--s3:#3e4047;--ln:#37393f;--tx:#e8e9ec;--mut:#9ca0a8;--ac:#6d8cff;--ok:#4cc38a;--bad:#ef5b5e;color-scheme:dark}
*{box-sizing:border-box}html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--tx);font:15px/1.4 "Segoe UI",system-ui,-apple-system,sans-serif}
button,input,textarea{font:inherit;color:inherit}
button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--s3);border:0;border-radius:6px;padding:8px 16px;font-weight:600;font-size:14px;cursor:pointer;transition:background .12s}
button:hover{background:#4a4c54}button:active{transform:translateY(1px)}
button.pri{background:var(--ac);color:#fff}button.pri:hover{background:#7f9bff}
button.x{background:none;color:var(--mut);padding:6px}button.x:hover{background:var(--s2);color:var(--tx)}
button.ib{width:32px;height:32px;padding:0}
input,textarea{background:var(--rail);border:1px solid transparent;border-radius:6px;padding:10px 12px;width:100%}
input:focus,textarea:focus{border-color:var(--ac);outline:0}:focus-visible{outline:2px solid var(--ac);outline-offset:2px}
.i{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.ico{display:inline-flex;flex:none}
.hero{min-height:100%;display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:center;padding:6vw;max-width:1180px;margin:auto}
.brand{display:flex;gap:10px;align-items:center;font-weight:800;font-size:20px;color:var(--ac);margin-bottom:28px}.brand .i{width:30px;height:30px;fill:var(--ac);stroke:none}
.hero h1{font-size:clamp(42px,7.5vw,88px);line-height:.98;font-weight:800;letter-spacing:-.035em;margin:0 0 20px}.hero p{color:var(--mut);max-width:36ch;font-size:17px;margin:0}
.card{background:var(--s1);border-radius:10px;padding:28px;display:grid;gap:12px}.card h2{margin:0;font-size:22px}
.err{color:#ff9d9d;min-height:1.4em;font-size:14px}
.app{display:grid;grid-template-columns:312px 1fr 240px;height:100dvh}
#nav{display:flex;min-width:0;background:var(--s1)}
.rail{width:72px;padding:12px 0;display:flex;flex-direction:column;gap:8px;align-items:center;background:var(--rail);overflow:auto}
.rail hr{width:32px;border:0;border-top:2px solid var(--ln);margin:2px 0}
.sv{width:48px;height:48px;border-radius:24px;padding:0;background:var(--bg);overflow:hidden;flex:none;transition:border-radius .15s,background .15s}
.sv:hover,.sv.on{border-radius:15px;background:var(--ac);color:#fff}.sv.home{background:var(--ac);color:#fff}.sv.home .i{fill:#fff;stroke:none;width:26px;height:26px}
.sv.add{color:var(--ok)}.sv.add:hover{background:var(--ok);color:#10261c}.sv img{width:100%;height:100%;object-fit:cover}
.chs{flex:1;display:flex;flex-direction:column;min-width:0}.chs>header,.main>header{padding:0 14px;border-bottom:1px solid #00000040;display:flex;gap:8px;align-items:center;height:52px;box-shadow:0 1px 0 #ffffff08}
.chs>header b,.main>header b{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.list{overflow:auto;padding:4px 8px;flex:1}
.cat{background:none;color:var(--mut);padding:14px 2px 4px;font-size:12px;justify-content:flex-start;gap:2px;width:100%;border-radius:0}.cat:hover{background:none;color:var(--tx)}
.cat .i{width:14px;height:14px;transition:transform .12s}.cat.c .i{transform:rotate(-90deg)}
.ch{display:flex;gap:8px;width:100%;justify-content:flex-start;background:none;color:var(--mut);padding:6px 8px;font-weight:500}.ch:hover{background:var(--s2);color:var(--tx)}
.ch.on{background:var(--s3);color:var(--tx)}.ch.un{color:var(--tx);font-weight:700}.ch .cn{flex:1;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bdg{background:var(--bad);color:#fff;border-radius:10px;font-style:normal;font-size:12px;padding:0 6px}
.vu{display:flex;gap:8px;align-items:center;padding:3px 8px 3px 30px;color:var(--mut);font-size:14px}.vu .i{width:15px;height:15px}.vu .vn{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.av{width:40px;height:40px;border-radius:50%;object-fit:cover;color:#fff;display:grid;place-items:center;font-weight:700;flex:none;transition:box-shadow .1s}.av.sm{width:28px;height:28px;font-size:12px}.talk{box-shadow:0 0 0 2px var(--ok)}
#bar{background:#1e1f22}.vp{padding:8px 12px;border-bottom:1px solid var(--ln);display:flex;align-items:center;gap:8px;color:var(--ok);font-weight:600;font-size:13px}.vp span.t{flex:1}
.me{display:flex;gap:2px;align-items:center;padding:8px}.me .nm{flex:1;margin-left:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.me .off .i{color:var(--bad)}
.main{display:flex;flex-direction:column;min-width:0;min-height:0}.msgs{flex:1;overflow:auto;padding:12px 0}
.msg{position:relative;padding:1px 16px}.msg:hover{background:#00000014}.mr{display:flex;gap:14px;padding-top:12px}.msg.same .mr{padding-top:0}.gut{width:40px;flex:none}
.msg .t{color:var(--mut);font-size:12px;margin-left:8px}.msg b{cursor:pointer}.msg b:hover{text-decoration:underline}.msg p{margin:1px 0;white-space:pre-wrap;overflow-wrap:anywhere}
.ed{color:var(--mut);font-size:11px}.msg img.a,.msg video{max-width:min(420px,100%);max-height:320px;border-radius:8px;display:block;margin-top:6px}
.rp{display:flex;gap:6px;align-items:center;margin:8px 0 -6px 16px;color:var(--mut);font-size:13px;min-width:0}.rp .i{width:14px;height:14px;transform:scaleY(-1)}.rp span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.act{position:absolute;right:16px;top:-14px;display:none;background:var(--s1);border:1px solid var(--ln);border-radius:6px}.msg:hover .act,.msg:focus-within .act{display:flex}
.msg.sel .act{display:flex}
.emo{height:1.5em;vertical-align:middle}
.rb{margin:0 16px;background:var(--s1);padding:6px 6px 6px 12px;border-radius:8px 8px 0 0;display:flex;align-items:center;font-size:13px;color:var(--mut)}.rb span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.compose{margin:0 16px 16px;background:var(--s2);border-radius:8px;display:flex;align-items:flex-end;gap:2px;padding:4px 6px}.compose textarea{background:none;border:0;resize:none;max-height:140px}
.hint{color:var(--mut);font-size:12px;padding:0 20px 8px;min-height:0}
.mem{background:var(--s1);overflow:auto;padding:4px 12px}.mem h3{font-size:12px;color:var(--mut);margin:18px 0 4px;font-weight:600}
.row{display:flex;gap:10px;align-items:center;padding:4px 6px;margin:0 -6px;border-radius:6px;cursor:pointer}.row:hover{background:var(--s2)}.row.off{opacity:.45}.row .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wrap{position:relative;display:flex}.dot{position:absolute;right:-3px;bottom:-3px;width:12px;height:12px;border-radius:50%;background:#6b6f78;border:3px solid var(--s1);box-sizing:content-box;width:8px;height:8px}.dot.on{background:var(--ok)}
.modal{position:fixed;inset:0;background:#000b;display:grid;place-items:center;padding:16px;z-index:9}
.pc{width:min(420px,100%);background:var(--s1);border-radius:10px;overflow:hidden;max-height:90dvh;overflow:auto}.pc .bn{height:110px;background:var(--s3) center/cover}
.pc .bd{padding:0 20px 20px;display:grid;gap:8px}.pc .bd.form{padding-top:20px}.pc .bd h2{margin:0}.pc .bd .av{width:84px;height:84px;margin-top:-42px;border:5px solid var(--s1);font-size:30px}
.seg{display:flex;gap:6px}.seg button{flex:1;background:var(--s2)}.seg button.on{background:var(--ac);color:#fff}
table{width:100%;border-collapse:collapse}td,th{padding:8px;border-bottom:1px solid var(--ln);text-align:left;font-weight:400}th{color:var(--mut);font-size:13px}.stat{display:flex;gap:28px;padding:16px;font-size:22px;font-weight:700}
.menu{display:none}
@media(max-width:820px){.hero{grid-template-columns:1fr;gap:28px}.app{grid-template-columns:1fr}.menu{display:inline-flex}
 #nav{position:fixed;inset:0 auto 0 0;width:min(312px,92vw);z-index:5;transform:translateX(-100%);transition:transform .2s}body.nav #nav{transform:none}
 .mem{position:fixed;inset:0 0 0 auto;width:min(240px,80vw);z-index:5;display:none}body.mem .mem{display:block}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* spacing and rhythm */
.scrim{display:none}
body{line-height:1.5}
.rail{gap:10px;padding:14px 0}
.chs>header,.main>header{height:56px;padding:0 16px;gap:10px}
.list{padding:8px 10px}.cat{padding:18px 4px 6px}
.ch{padding:8px 10px;gap:10px;margin:1px 0}.vu{padding:4px 10px 4px 36px;gap:10px}
.me{padding:10px 12px;gap:4px}.who{flex:1;justify-content:flex-start;gap:10px;min-width:0;padding:4px 6px;text-align:left}.who .nm{margin:0}
.msgs{padding:16px 0 8px}.msg{padding:2px 20px}.mr{gap:16px;padding-top:16px}.msg .t{margin-left:10px}
.rp{margin:12px 20px -4px 76px;gap:8px}.msg .rp+.mr{padding-top:8px}.act{right:20px}
.compose{margin:0 20px 20px;padding:6px 8px;gap:4px;border-radius:10px}.compose textarea{padding:9px 8px}.rb{margin:0 20px}
.mem{padding:8px 16px 16px}.mem h3{margin:20px 0 6px}.row{padding:6px 8px;margin:0 -8px;gap:12px}
.card{padding:32px;gap:14px}.pc .bd{padding:0 24px 24px;gap:12px}.pc .bd.form{padding-top:24px}
@media(max-width:820px){body.nav .scrim,body.mem .scrim{display:block;position:fixed;inset:0;background:#0008;z-index:4}.msg{padding:2px 12px}.rp{margin-left:68px}.act{right:12px}.compose,.rb{margin-left:12px;margin-right:12px}}
/* profile card and editing */
.pc{position:relative}.cl{position:absolute;right:10px;top:10px;z-index:2;background:#0009;color:#fff;border-radius:50%}.cl:hover{background:#000c;color:#fff}
.pc .bn{height:120px;position:relative}.bn.edit{cursor:pointer}
.bn .chip{position:absolute;right:10px;bottom:10px;display:flex;gap:6px;align-items:center;background:#0009;color:#fff;border-radius:6px;padding:5px 10px;font-size:13px;font-weight:600}.bn.edit:hover .chip{background:#000d}
.avw{position:relative;width:84px;height:84px;margin-top:-42px}.pc .avw .av{margin:0}
.pen{position:absolute;right:-4px;bottom:-4px;width:32px;height:32px;border-radius:50%;padding:0;background:var(--ac);color:#fff;border:3px solid var(--s1);box-sizing:content-box}.pen:hover{background:#7f9bff}.pen .i{width:15px;height:15px}
.pc h2{font-size:22px;margin:0}.pc .un{color:var(--mut);font-size:14px;margin-top:-8px}
.about{background:var(--bg);border-radius:8px;padding:12px 14px;white-space:pre-wrap;overflow-wrap:anywhere;min-height:20px}.since{color:var(--mut);font-size:13px}
label{display:grid;gap:6px;font-size:13px;color:var(--mut);font-weight:600}.cnt{justify-self:end;font-weight:400}
.acts{display:flex;gap:8px;justify-content:flex-end;align-items:center;margin-top:4px}.acts .sp{margin-right:auto}.note{color:var(--mut);font-size:13px;min-height:1.2em}