:root{
  --paper:#f6f4ef;--surface:#fffdf8;--surface-2:#ede9df;--ink:#1d2430;--ink-2:#4a5363;--ink-3:#727a89;
  --line:#ddd7ca;--accent:#a8432a;--accent-soft:#f3ddd3;--loss:#962f3b;--loss-soft:#f2d9dc;--keep:#2a6b58;--keep-soft:#d5e9e1;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#12161c;--surface:#1a1f27;--surface-2:#212833;--ink:#ebe7de;--ink-2:#b0b5bf;--ink-3:#868d9a;
  --line:#2c333e;--accent:#ef8a6a;--accent-soft:#3d241b;--loss:#e88b94;--loss-soft:#3a2226;--keep:#7cc3a9;--keep-soft:#1c3329;
}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}
button{font:inherit;cursor:pointer;background:var(--accent);color:#fff;border:0;border-radius:6px;padding:7px 14px}
button.ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line)}
button:disabled{opacity:.5;cursor:not-allowed}
select,input,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:6px 8px}
textarea{width:100%;resize:vertical;line-height:1.55}
pre{white-space:pre-wrap;word-wrap:break-word;font:inherit;margin:0}
.small{font-size:12px}
.muted{color:var(--ink-3)}
.error,.warn{color:var(--loss)}
.top{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:20px;padding:10px 18px;background:var(--surface);border-bottom:1px solid var(--line)}
.brandmark{font-weight:700;letter-spacing:-.01em}
.sel{display:flex;gap:8px;align-items:center;color:var(--ink-3);font-size:13px}
.tabs{display:flex;gap:4px}
.tabs button{background:transparent;color:var(--ink-2);padding:6px 12px}
.tabs button.on{background:var(--accent-soft);color:var(--ink)}
.who{margin-left:auto;color:var(--ink-2);font-size:13px}
.banner{margin:10px 18px 0;padding:10px 14px;border-radius:6px;background:var(--loss-soft);color:var(--ink)}
.banner.ok{background:var(--keep-soft)}
.split{display:grid;grid-template-columns:minmax(280px,380px) 1fr;height:calc(100vh - 56px)}
.list{border-right:1px solid var(--line);overflow-y:auto;background:var(--surface)}
.list-head{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.alert{margin:10px;padding:10px;border-radius:6px;background:var(--loss-soft);font-size:13px}
.threads{list-style:none;margin:0;padding:0}
.threads li{padding:10px 14px;border-bottom:1px solid var(--line);cursor:pointer}
.threads li:hover{background:var(--surface-2)}
.threads li.on{background:var(--accent-soft)}
.threads li.done{opacity:.7}
.t-top{display:flex;justify-content:space-between;gap:8px;font-size:13px}
.t-top span{color:var(--ink-3);white-space:nowrap}
.t-subj{font-size:14px;margin-top:2px}
.t-snip{font-size:12.5px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.t-tags{margin-top:6px;display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:11px;padding:1px 8px;border-radius:99px;background:var(--surface-2);color:var(--ink-2)}
.tag.wait{background:var(--accent-soft);color:var(--accent)}
.tag.ok{background:var(--keep-soft);color:var(--keep)}
.tag.warn{background:var(--loss-soft);color:var(--loss)}
.detail{overflow-y:auto;padding:20px 26px}
.empty{color:var(--ink-3);margin-top:40px;text-align:center}
.msg{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px 18px}
.msg-head h2{margin:0;font-size:18px}
.meta{font-size:13px;color:var(--ink-3);margin:2px 0 6px}
.flags{display:flex;gap:6px;margin-bottom:10px}
.quoted{margin-top:12px;font-size:13px;color:var(--ink-2)}
.sent{margin-top:16px}
.sent h3,.side h3,.compose h3{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin:0 0 8px}
.sent-item{background:var(--keep-soft);border-radius:8px;padding:10px 14px;margin-bottom:8px}
.cols{display:grid;grid-template-columns:1fr 300px;gap:16px;margin-top:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px 16px}
.compose-actions{display:flex;gap:10px;align-items:center;justify-content:flex-end;margin-top:10px}
.compose-actions .saved{margin-right:auto;font-size:12.5px}
.side .mini{padding-left:18px;margin:6px 0;font-size:13px}
.side .history{list-style:none;padding:0;font-size:12.5px;color:var(--ink-2)}
.page{padding:20px 26px;max-width:1000px}
.grid{width:100%;border-collapse:collapse;font-size:13px;background:var(--surface)}
.grid th,.grid td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
#settings-form label{display:flex;flex-direction:column;gap:6px;max-width:360px}
dialog{border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);max-width:680px;width:92vw;padding:0}
dialog::backdrop{background:rgba(0,0,0,.4)}
.preview{padding:18px 22px}
.preview h3{margin:0 0 10px}
.preview dl{display:grid;grid-template-columns:80px 1fr;gap:4px 10px;font-size:13px;margin:0 0 12px}
.preview dt{color:var(--ink-3)}
.preview dd{margin:0}
#pv-body{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:12px 14px;max-height:50vh;overflow:auto}
.preview .row{display:flex;justify-content:flex-end;gap:10px;margin-top:14px}
@media (max-width:900px){.split{grid-template-columns:1fr;height:auto}.cols{grid-template-columns:1fr}}