/* History dialog and the "someone else saved" banner */
dialog.hist{border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--fg);padding:0;width:min(520px,calc(100vw - 24px));max-height:min(640px,calc(100vh - 24px));box-shadow:0 18px 48px rgba(10,12,40,.3)}
dialog.hist::backdrop{background:rgba(10,12,40,.45)}
.hist-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 6px}
.hist-head h2{margin:0;font-size:18px}
.hist-tabs{display:flex;gap:6px;padding:0 16px 8px;border-bottom:1px solid var(--line)}
.hist-tabs button{border:0;background:transparent;padding:7px 10px;border-radius:8px;cursor:pointer;font-weight:600;color:var(--muted)}
.hist-tabs button[aria-selected="true"]{background:var(--soft);color:var(--fg)}
.hist-body{padding:10px 16px 16px;overflow:auto;max-height:calc(min(640px,100vh - 24px) - 120px);display:flex;flex-direction:column;gap:8px}
.hist-msg{margin:0;font-size:13.5px;color:var(--muted);line-height:1.45}
.hist-msg.err{color:var(--danger)}
.hist-row{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:var(--bg)}
.hist-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.hist-main span{font-size:13px;color:var(--muted)}
.conflict{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;background:#FFF4D6;color:#4A3500;border:1.5px solid #E0B43A;border-radius:12px;padding:10px 14px;margin:0 0 10px;font-size:14px}
.conflict[hidden]{display:none}
.conflict .grow{flex:1 1 200px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .conflict{background:#3A2F0E;color:#FFE9A8;border-color:#8A6B12}}
.presence{padding:9px 14px;border-radius:10px;background:#EEF4FF;color:#1B3A7A;border:1.5px solid #9DBFFF;font-size:14px}
.presence[hidden]{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .presence{background:#14233F;color:#C9DBFF;border-color:#3F63A8}}