:root{--acc:#3b82f6;--r:14px}
[data-theme=dark]{--bg:#0f1115;--panel:#161920;--panel2:#1d212a;--line:#272c37;--txt:#e8eaf0;--mut:#8b93a5;--mine:#1f4fa8;--theirs:#202531}
[data-theme=light]{--bg:#f2f4f8;--panel:#fff;--panel2:#eef1f6;--line:#dde2ea;--txt:#151922;--mut:#667085;--mine:#d4e4ff;--theirs:#fff}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--txt);font:15px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}
#app{height:100%}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
svg.i{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.hide{display:none!important}
.auth{height:100%;display:flex;align-items:center;justify-content:center;padding:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px;width:100%;max-width:380px}
.card h1{margin:0 0 4px;font-size:22px}.card p.sub{margin:0 0 16px;color:var(--mut)}
.inp{width:100%;padding:12px 14px;margin:6px 0;border-radius:12px;border:1px solid var(--line);background:var(--panel2);outline:0}
.inp:focus{border-color:var(--acc)}
.btn{background:var(--acc);color:#fff;border-radius:12px;padding:12px 16px;font-weight:600;width:100%;margin-top:8px}
.btn.sec{background:var(--panel2);color:var(--txt)}.btn.red{background:#d64545}
.btn:disabled{opacity:.6}
.err{color:#ff6b6b;min-height:20px;font-size:13px;margin-top:6px}
.lnk{color:var(--acc);margin-top:10px;display:block;text-align:center;width:100%}
.shell{display:flex;height:100%}
.side{width:340px;max-width:100%;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;flex:none}
.main{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--bg)}
.top{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line);min-height:56px}
.top .t{flex:1;min-width:0}.top .t b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .t small{color:var(--mut)}
.ib{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--mut);flex:none}
.ib:active,.ib:hover{background:var(--panel2);color:var(--txt)}
.search{margin:8px 12px}
.list{flex:1;overflow-y:auto;overscroll-behavior:contain}
.row{display:flex;gap:12px;padding:10px 14px;align-items:center;cursor:pointer;width:100%;text-align:left}
.row:hover,.row.on{background:var(--panel2)}
.row .b{flex:1;min-width:0}
.row .l1{display:flex;justify-content:space-between;gap:8px}
.row .l1 b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .l1 small{color:var(--mut);flex:none}
.row .l2{display:flex;justify-content:space-between;gap:8px;color:var(--mut)}
.row .l2 span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.badge{background:var(--acc);color:#fff;border-radius:10px;min-width:20px;padding:0 6px;text-align:center;font-size:12px;line-height:20px;flex:none}
.av{width:46px;height:46px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;background-size:cover;background-position:center;overflow:hidden}
.av.s{width:34px;height:34px;font-size:13px}.av.l{width:84px;height:84px;font-size:30px}
.av img{width:100%;height:100%;object-fit:cover}
.sec-h{padding:8px 14px;color:var(--mut);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.msgs{flex:1;overflow-y:auto;padding:10px 12px;display:flex;flex-direction:column;gap:3px;overscroll-behavior:contain}
.m{display:flex;gap:8px;max-width:100%;align-items:flex-end}
.m.me{flex-direction:row-reverse}
.bub{max-width:min(78%,560px);padding:7px 11px;border-radius:16px;background:var(--theirs);border:1px solid var(--line);word-break:break-word;white-space:pre-wrap;position:relative}
.m.me .bub{background:var(--mine);border-color:transparent}
.bub .nm{font-weight:700;font-size:13px;color:var(--acc);display:block}
.bub .tm{color:var(--mut);font-size:11px;float:right;margin:4px 0 0 10px}
.bub.del{font-style:italic;color:var(--mut)}
.bub img.pic{display:block;max-width:100%;max-height:340px;border-radius:10px;margin-bottom:4px;cursor:zoom-in}
.bub a.file{display:flex;gap:8px;align-items:center;color:var(--acc);text-decoration:none;padding:4px 0}
.bub audio,.bub video{max-width:100%;display:block}
.rep{border-left:3px solid var(--acc);padding:2px 8px;margin-bottom:4px;font-size:13px;color:var(--mut);background:rgba(127,127,127,.12);border-radius:6px;cursor:pointer}
.rx{display:flex;gap:4px;flex-wrap:wrap;margin-top:4px;clear:both}
.rx button{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:1px 8px;font-size:13px}
.rx button.me{border-color:var(--acc)}
.day{align-self:center;background:var(--panel2);color:var(--mut);padding:2px 12px;border-radius:12px;font-size:12px;margin:8px 0}
.comp{display:flex;gap:6px;align-items:flex-end;padding:8px 10px;border-top:1px solid var(--line);background:var(--panel)}
.comp textarea{flex:1;resize:none;max-height:140px;min-height:42px;padding:10px 14px;border-radius:22px;border:1px solid var(--line);background:var(--panel2);outline:0}
.comp .send{background:var(--acc);color:#fff}
.bar{padding:6px 14px;border-top:1px solid var(--line);background:var(--panel);display:flex;gap:8px;align-items:center}
.bar .tx{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--mut);border-left:3px solid var(--acc);padding-left:8px}
.empty{margin:auto;color:var(--mut);text-align:center;padding:20px}
.ov{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:18px;width:100%;max-width:420px;max-height:92vh;overflow-y:auto;padding:18px}
.modal h2{margin:0 0 10px;font-size:18px;display:flex;justify-content:space-between;align-items:center}
.lbl{color:var(--mut);font-size:13px;margin-top:10px;display:block}
.seg{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}
.seg button{padding:7px 14px;border-radius:18px;background:var(--panel2);border:1px solid var(--line)}
.seg button.on{border-color:var(--acc);color:var(--acc)}
.sw{width:30px;height:30px;border-radius:50%;border:2px solid transparent}.sw.on{border-color:var(--txt)}
.menu{position:fixed;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:6px;z-index:60;min-width:170px;box-shadow:0 8px 30px rgba(0,0,0,.4)}
.menu button{display:flex;gap:10px;align-items:center;width:100%;padding:9px 12px;border-radius:10px;text-align:left}
.menu button:hover{background:var(--panel2)}
.menu .rxs{display:flex;gap:2px;padding:4px;border-bottom:1px solid var(--line);margin-bottom:4px}
.menu .rxs button{width:auto;padding:4px 7px;font-size:20px}
.toast{position:fixed;left:50%;bottom:80px;transform:translateX(-50%);background:#222;color:#fff;padding:10px 16px;border-radius:20px;z-index:70;max-width:90%}
.viewer{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:80;display:flex;align-items:center;justify-content:center}
.viewer img{max-width:100%;max-height:100%}
@media(max-width:760px){
 .side{width:100%}
 .shell.chat .side{display:none}
 .shell:not(.chat) .main{display:none}
 .bub{max-width:86%}
}
@media(min-width:761px){.back{display:none}}
a.btn{display:block;text-align:center;text-decoration:none}
.adm{height:100%;overflow:auto;padding:12px;max-width:1100px;margin:0 auto}
.adm h1{font-size:18px;margin:0;flex:1}
.bartop{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}
.tabs button{padding:7px 14px;border-radius:18px;background:var(--panel2);border:1px solid var(--line)}
.tabs button.on{border-color:var(--acc);color:var(--acc)}
.sc{overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--panel);margin:8px 0;max-height:65vh}
table.dt{border-collapse:collapse;font:12px/1.4 ui-monospace,Menlo,Consolas,monospace;min-width:100%}
.dt th,.dt td{padding:5px 9px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;max-width:320px;overflow:hidden;text-overflow:ellipsis}
.dt th{background:var(--panel2);position:sticky;top:0}
.dt tr.cl{cursor:pointer}.dt tr.cl:hover{background:var(--panel2)}
.nul{color:var(--mut);font-style:italic}
textarea.sql{width:100%;min-height:150px;font:13px/1.45 ui-monospace,Menlo,Consolas,monospace;padding:10px;border-radius:12px;border:1px solid var(--line);background:#0b0d11;color:#cfe3ff;outline:0;resize:vertical}
.out{font:12px ui-monospace,Menlo,Consolas,monospace;padding:8px 10px;margin:8px 0;border-left:3px solid var(--acc);background:var(--panel);white-space:pre-wrap;word-break:break-word}
.out.bad{border-color:#d64545;color:#ff9a9a}.out.ok{border-color:#2e9e6a}
.row2{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.row2 .btn,.row2 .inp{width:auto;margin:0}
.chip{padding:5px 11px;border-radius:14px;background:var(--panel2);border:1px solid var(--line);font-size:12px}

/* ===== modern pass ===== */
[data-theme=amoled]{--bg:#000;--panel:#0a0a0c;--panel2:#15161a;--line:#1f2127;--txt:#f1f3f7;--mut:#8a90a0;--mine:#1b4aa0;--theirs:#14151a}
[data-theme=ocean]{--bg:#08161f;--panel:#0d202c;--panel2:#13303f;--line:#1a3a4b;--txt:#e6f4fa;--mut:#82a5b6;--mine:#0e5f7d;--theirs:#102b39}
:root{--ease:cubic-bezier(.2,.8,.2,1)}
body{letter-spacing:.005em}
*{scrollbar-width:thin;scrollbar-color:var(--line) transparent}
button,.row,.inp,.chip{transition:background .15s var(--ease),border-color .15s var(--ease),color .15s var(--ease),transform .1s var(--ease)}
button:active{transform:scale(.97)}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.card{border-radius:24px;padding:28px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.hero{width:60px;height:60px;border-radius:18px;background:var(--acc);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 0 14px}
.hero svg.i{width:30px;height:30px}
.inp{border-radius:14px;padding:13px 15px}
.btn{border-radius:14px;display:flex;align-items:center;justify-content:center;gap:8px}
.btn svg.i{width:18px;height:18px}.btn.off{opacity:.4;pointer-events:none}
.meta{color:var(--mut);font-size:13px}
.side{background:var(--panel)}
.top{background:color-mix(in srgb,var(--panel) 92%,transparent);backdrop-filter:blur(12px)}
.row{margin:2px 8px;width:calc(100% - 16px);border-radius:14px}
.row.on{background:color-mix(in srgb,var(--acc) 16%,var(--panel))}
.row .l1 b svg{width:15px;height:15px;vertical-align:-2px;margin-right:5px;color:var(--mut)}
.av{box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.bub{border-radius:18px;border-bottom-left-radius:6px;padding:8px 12px}
.m.me .bub{border-bottom-left-radius:18px;border-bottom-right-radius:6px;background:var(--acc);color:#fff}
.m.me .bub .tm,.m.me .bub .rep{color:rgba(255,255,255,.78)}
.m.me .bub a{color:#fff!important;text-decoration:underline}
.m.me .rx button{color:var(--txt)}
.comp{padding:10px 12px;gap:8px}
.comp textarea{border-radius:24px}
.comp .send{width:44px;height:44px;box-shadow:0 4px 14px color-mix(in srgb,var(--acc) 45%,transparent)}
.ib{width:42px;height:42px}
.seg button{display:inline-flex;align-items:center;gap:6px}
.menu{border-radius:16px;box-shadow:0 12px 40px rgba(0,0,0,.35)}
.menu button svg.i{width:18px;height:18px;color:var(--mut)}
.modal{border-radius:22px}
.toast{box-shadow:0 8px 24px rgba(0,0,0,.35)}
.tabs button{display:inline-flex;align-items:center;gap:7px}
.tabs button svg.i{width:16px;height:16px}
.adm .btn{width:auto;padding:10px 16px;margin-top:8px}
.adm select.inp{max-width:420px}
.adm .row2 .btn{margin:0}
.adm a.ib{color:var(--mut);text-decoration:none}