/* Appearance controls only. Existing day-mode content geometry/type is unchanged. */
.ui-theme-settings{margin:14px 0;padding:14px;border:1px solid #dce4df;border-radius:14px;background:#fff;color:#102c29}
.ui-theme-settings>strong{display:block;font-size:13px}
.ui-theme-settings>small{display:block;margin-top:8px;font-size:11px;color:#62776c}
.ui-theme-options{display:flex;gap:6px;margin-top:10px}
.ui-theme-options>button{flex:1;min-height:44px;padding:9px 12px;border:1px solid #cbd9d0;border-radius:10px;background:#f4f7f2;color:#365e49;font-family:inherit;font-size:13px;font-weight:600;line-height:1.5;cursor:pointer}
.ui-theme-options>button[aria-pressed=true]{background:#173e32;color:#fff;border-color:#173e32}
.ui-theme-options>button:focus-visible,#ui-theme-dialog button:focus-visible{outline:3px solid #47856e;outline-offset:3px}
#ui-theme-dialog{width:min(400px,calc(100% - 32px));max-height:80dvh;overflow:auto;padding:20px;border:1px solid #cbd9d0;border-radius:18px;background:#fff;color:#102c29}
#ui-theme-dialog::backdrop{background:#102c2977}
#ui-theme-dialog h2{margin:0 0 14px;font-size:18px}
#ui-theme-dialog p{font-size:12px;line-height:1.7;color:#62776c}
#ui-theme-dialog .ui-theme-close{width:100%;min-height:44px;margin-top:10px;border:0;border-radius:10px;background:#173e32;color:#fff;font-family:inherit;font-size:13px;font-weight:600;line-height:1.5}

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:root[data-ui-theme=dark] :is(.stat-viz,.ring-viz) [fill="#edf1ed"]{fill:var(--ui-line)}
/* Knowledge atlas keeps its category colors and dark-on-light node labels. */
:root[data-ui-theme=dark] #fusion-new-task{--new-paper:#1b2825;--new-muted:#a1b5ac;--new-selected:#243730;--new-dark:#a6e8ce}
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:root[data-ui-theme=dark] #fusion-new-task :is(#fusion-new-model-value,#fusion-new-help,#fusion-new-status){color:var(--ui-muted)}
:root[data-ui-theme=dark] #fusion-new-task :is(#fusion-new-menu-close,#fusion-new-attachments button){background:var(--ui-raised);color:var(--ui-text)}
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:root[data-ui-theme=dark] #fusion-new-task #fusion-new-status.error{color:#ffb3a5}
/* Classic file/settings tools inherit the same choice on navigation. */
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:root[data-ui-theme=dark] #new-task :is(strong,small,i){color:#111918}
:root[data-ui-theme=dark] #new-task>span{background:#111918;color:var(--ui-accent)}
:root[data-ui-theme=dark] .message.user>div{background:#243f35;color:var(--ui-text)}
:root[data-ui-theme=dark] .message-body blockquote{color:var(--ui-muted);border-color:var(--ui-accent)}
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:root[data-ui-theme=dark] #reply-form #send-reply{background:var(--ui-accent);color:#111918}
:root[data-ui-theme=dark] #reply-form #enhance-reply{background:var(--ui-raised);color:var(--ui-accent)}