:root{--bg:#f6f1e7;--card:#fffdf8;--ink:#2a2620;--mut:#6b6254;--acc:#1f6f5c;--line:#e3d9c4;--warn:#fff1cf;--r:14px}
*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--ink);font:16px/1.45 "Noto Serif",Georgia,serif;min-height:100vh}
.top{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.6rem 1rem;background:var(--bg);border-bottom:1px solid var(--line)}
.top h1{font-size:1.15rem;margin:0}.lang{display:flex;gap:.5rem}.lang button{min-width:48px;min-height:48px;border:1px solid var(--line);background:var(--card);border-radius:var(--r);font:inherit;color:var(--ink)}.lang button.on{border-color:var(--acc);font-weight:700}
main{max-width:760px;margin:0 auto;padding:1.5rem 1rem 3rem;display:flex;flex-direction:column;gap:1.5rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.25rem;display:flex;flex-direction:column;gap:1.5rem}
label{display:flex;flex-direction:column;gap:.5rem;font-weight:700}input{min-height:48px;font:inherit;padding:.5rem .8rem;border:1px solid var(--line);border-radius:10px;background:#fff}
.btn{min-height:52px;border:0;border-radius:var(--r);background:var(--acc);color:#fff;font:inherit;font-weight:700;font-size:1.05rem;padding:.6rem 1.2rem}.btn.sec{background:var(--card);color:var(--ink);border:1px solid var(--line)}.btn:disabled{opacity:.6}
.err{background:var(--warn);border:2px solid #d9a521;border-radius:10px;padding:.8rem 1rem;font-weight:700}.note{color:var(--mut);font-size:.95rem}.ro{border-left:4px solid var(--acc);padding:.2rem 0 .2rem .8rem;color:var(--mut)}
.bar{display:flex;gap:1rem;align-items:center;justify-content:space-between;flex-wrap:wrap}.tabs{display:flex;gap:.5rem;flex-wrap:wrap}.tab{min-height:48px;padding:.4rem 1rem;border-radius:999px;border:2px solid var(--line);background:var(--card);font:inherit;color:var(--ink)}.tab.on{border-color:var(--c,var(--acc));font-weight:700}
.msg{display:flex;gap:.8rem;align-items:flex-start;min-height:64px;padding:.9rem 1rem;border-bottom:1px solid var(--line);border-left:6px solid var(--c,var(--acc));background:var(--card)}
.msg:first-child{border-top-left-radius:var(--r);border-top-right-radius:var(--r)}.msg:last-child{border-bottom:0;border-bottom-left-radius:var(--r);border-bottom-right-radius:var(--r)}
.msg .m{flex:1;min-width:0}.msg .f{display:flex;justify-content:space-between;gap:.8rem}.msg .f b,.msg .s{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}.msg .d{color:var(--mut);font-size:.88rem;white-space:nowrap}
.msg.u .f b,.msg.u .s{font-weight:800}.msg:not(.u) .s,.msg:not(.u) .f b{font-weight:400;color:var(--mut)}.dot{width:12px;height:12px;border-radius:50%;margin-top:.45rem;flex:none;background:transparent;border:2px solid var(--line)}.u .dot{background:var(--acc);border-color:var(--acc)}
.list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r)}
@media(min-width:900px){main{max-width:980px}.msg{padding:1rem 1.3rem}}
.card .btn,main>.btn{width:100%}#more{width:100%}
.sum{display:flex;justify-content:space-between;align-items:center;gap:1rem;font-size:1.1rem}.btn.sm{min-height:48px;font-size:1rem;width:auto!important}
.srch input{width:100%;font-weight:400}.sr{position:absolute;left:-9999px}
.day{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);margin:1rem 0 .2rem}
.av{flex:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:.95rem;background:hsl(var(--h) 45% 88%);color:hsl(var(--h) 45% 25%)}
.msg{align-items:center;border-left:0}.list{overflow:hidden}.dot{margin-top:0;width:14px;height:14px}
.top h1{display:flex;align-items:center;gap:.6rem}.top h1::before{content:"";width:28px;height:28px;border-radius:8px;background:var(--acc) url(/icon.svg) center/cover}
#more{margin-top:1.5rem}.sum{margin-bottom:.2rem}
.msg[role=button]{cursor:pointer}.msg[role=button]:active{background:#f3ecdb}.msg:focus-visible{outline:3px solid var(--acc);outline-offset:-3px}
.subj{margin:0;font-size:1.3rem;line-height:1.3}.body{white-space:pre-wrap;overflow-wrap:anywhere;font-size:1.05rem;line-height:1.6}.att{border:2px solid #d9a521;background:var(--warn);border-radius:10px;padding:.8rem 1rem}.att ul{margin:.5rem 0 0;padding-left:1.2rem}
#inst{max-width:760px;margin:0 auto;padding:0 1rem 3rem}#inst .btn{width:100%}