:root{--green:#25d366;--dark:#111b21;--panel:#202c33;--muted:#8696a0;--in:#202c33;--out:#005c4b;--line:#2a3942}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#0b141a;color:#e9edef}.app{height:100vh}.app,.list{display:flex}.list{width:340px;min-width:260px;border-right:1px solid var(--line);flex-direction:column;background:var(--dark)}.list h1{font-size:16px;padding:14px 16px;margin:0;font-weight:700;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}.dot{width:10px;height:10px;border-radius:50%;background:var(--green);display:inline-block}.contacts{overflow-y:auto;flex:1 1}.contact{padding:12px 16px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;gap:10px}.contact.active,.contact:hover{background:var(--panel)}.avatar{width:42px;height:42px;border-radius:50%;background:#374045;display:flex;align-items:center;justify-content:center;font-weight:700;color:#cfd9de;flex:none}.cinfo{min-width:0;flex:1 1}.crow{display:flex;justify-content:space-between;gap:8px;align-items:center}.cname{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ctime{font-size:11px}.cprev,.ctime{color:var(--muted);white-space:nowrap}.cprev{font-size:13px;overflow:hidden;text-overflow:ellipsis}.badge{background:var(--green);color:#04160f;border-radius:12px;padding:0 7px;font-size:11px;font-weight:700;min-width:20px;text-align:center}.main{flex:1 1;display:flex;flex-direction:column;background:#0b141a}.main-header{padding:12px 18px;border-bottom:1px solid var(--line);background:var(--dark);display:flex;gap:10px;align-items:center}.thread{flex:1 1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:6px}.msg{max-width:65%;padding:8px 11px;border-radius:8px;font-size:14px;line-height:1.35;white-space:pre-wrap;word-break:break-word}.msg.in{background:var(--in);align-self:flex-start;border-top-left-radius:0}.msg.out{background:var(--out);align-self:flex-end;border-top-right-radius:0}.msg .meta{display:block;font-size:10px;color:var(--muted);margin-top:3px;text-align:right}.call{align-self:center;background:#1f2c33;color:#e9edef;border:1px solid var(--line);font-size:13px}.composer{padding:12px 16px;border-top:1px solid var(--line);background:var(--dark);display:flex;gap:8px}.composer input{flex:1 1;background:var(--panel);border:none;color:#e9edef;padding:11px 14px;border-radius:20px;outline:none}.composer button{background:var(--green);border:none;color:#04160f;font-weight:700;padding:0 18px;border-radius:20px;cursor:pointer}.composer button:disabled{opacity:.5;cursor:default}.empty{margin:auto;color:var(--muted);text-align:center;padding:24px}