:root{--bg:#f6f7f9;--panel:#fff;--border:#e2e5ea;--text:#1c2024;--muted:#666d78;--accent:#3b5bdb;--danger:#c92a2a;--ok:#2b8a3e}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.45}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.center-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;max-width:420px;margin:8vh auto;padding:28px}.center-card h1{margin-top:0}label{margin:14px 0 4px;font-size:13px;font-weight:600;display:block}input,textarea{width:100%;font:inherit;border:1px solid var(--border);background:#fff;border-radius:8px;padding:9px 10px}textarea{resize:vertical;min-height:220px}input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}button,.btn{font:inherit;color:#fff;background:var(--accent);cursor:pointer;-webkit-tap-highlight-color:transparent;border:0;border-radius:8px;padding:9px 16px;font-weight:600;transition-property:scale,background-color;transition-duration:.15s;transition-timing-function:ease-out;display:inline-block}:is(button:not(:disabled),.btn):active{scale:.96}button:disabled{opacity:.55;cursor:not-allowed}button.secondary,.btn.secondary{color:var(--text);background:#eceef2}button.danger{background:var(--danger)}button.link{color:var(--accent);background:0 0;padding:0;font-weight:500}button.link:active{scale:1}@media (hover:hover){:is(button:not(:disabled),.btn):hover{background:color-mix(in srgb, var(--accent) 88%, black);text-decoration:none}button.secondary:not(:disabled):hover,.btn.secondary:hover{background:#e0e3e9}button.danger:not(:disabled):hover{background:color-mix(in srgb, var(--danger) 88%, black)}button.link:hover{background:0 0;text-decoration:underline}}.icon{vertical-align:-.125em;fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:1em;height:1em}.unread .icon{stroke-width:2.5px}.row{gap:12px;display:flex}.row>*{flex:1}.hint{color:var(--muted);margin-top:4px;font-size:13px}.error{color:var(--danger);margin-top:4px;font-size:13px}.ok{color:var(--ok);margin-top:4px;font-size:13px}.suffix-input{align-items:center;gap:6px;display:flex}.suffix-input span{color:var(--muted);white-space:nowrap}.shell{grid-template-columns:220px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;gap:4px;padding:18px 14px;display:flex}.sidebar .brand{margin:0 8px 14px;font-size:20px;font-weight:700}.sidebar .nav{color:var(--text);border-radius:8px;padding:8px 12px;transition:background-color .1s ease-out;display:block}@media (hover:hover){.sidebar .nav:hover{background:#eceef2;text-decoration:none}}.sidebar .nav.active{color:var(--accent);background:#e7ecff;font-weight:600}.sidebar .me{color:var(--muted);word-break:break-all;margin-top:auto;padding:8px;font-size:13px}.main{min-width:0;padding:24px 28px}.banner{background:#fff4e6;border:1px solid #ffd8a8;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;padding:12px 16px;display:flex}.list{background:var(--panel);border:1px solid var(--border);border-radius:10px;overflow:hidden}.list-item{color:var(--text);border-bottom:1px solid var(--border);grid-template-columns:200px 1fr 90px;gap:14px;padding:11px 16px;display:grid}.list-item:last-child{border-bottom:0}.list-item{transition:background-color .1s ease-out}@media (hover:hover){.list-item:hover{background:#f1f4ff;text-decoration:none}}.list-item.unread{background:#fbfcff;font-weight:700}.list-item .snippet{color:var(--muted);font-weight:400}.list-item .cell{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.list-item .date{text-align:right;color:var(--muted);font-size:13px;font-weight:400}.empty{text-align:center;color:var(--muted);padding:40px}.message{background:var(--panel);border:1px solid var(--border);border-radius:10px;margin-bottom:14px;padding:16px 18px}.message header{justify-content:space-between;gap:12px;margin-bottom:10px;display:flex}.message .meta{color:var(--muted);font-size:13px}.message iframe{border:0;width:100%;min-height:120px}.message pre{white-space:pre-wrap;word-break:break-word;font:inherit;margin:0}.attachments{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.chip{background:#eceef2;border-radius:999px;padding:6px 10px;font-size:13px}.toolbar{align-items:center;gap:10px;margin-bottom:14px;display:flex}.toolbar h1{flex:1;margin:0;font-size:22px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;max-width:640px;margin-bottom:18px;padding:18px 20px}.panel h2{margin-top:0;font-size:17px}@media (max-width:720px){.shell{grid-template-columns:1fr}.sidebar{flex-flow:wrap;align-items:center}.list-item{grid-template-columns:1fr 70px}.list-item .snippet{display:none}}.thread-title{margin:0 0 14px;font-size:22px}.list-item .who,.list-item .subj,.list-item .date{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.list-item .snip{color:var(--muted);font-weight:400}.pager{justify-content:space-between;margin-top:12px;display:flex}.msg{background:var(--panel);border:1px solid var(--border);border-radius:10px;margin-bottom:14px;padding:16px 18px}.msg-head{color:var(--muted);justify-content:space-between;gap:12px;margin-bottom:10px;font-size:13px;display:flex}.msg-head strong{color:var(--text)}.msg iframe{border:0;width:100%;min-height:80px}.msg pre{white-space:pre-wrap;word-break:break-word;font:inherit;margin:0}.actions{align-items:center;gap:10px;margin-top:14px;display:flex}.compose{background:var(--panel);border:1px solid var(--border);border-radius:10px;max-width:760px;padding:18px 20px}.compose label.btn{margin:0;font-size:14px}.hint.bad{color:var(--danger)}.list,.msg,.message,.compose,.panel,.center-card{border:1px solid #0000;box-shadow:0 0 0 1px #0000000f,0 1px 2px #0000000a,0 4px 12px #0000000a}