:root{--bg:#f6f4ef;--card:#fff;--ink:#1d1c1a;--muted:#6f6b63;--line:#e3dfd6;--accent:#1f4d3f;--accent-ink:#fff;--warn:#8a3b12;--warn-bg:#fbeee6;--ok:#1f5d3a;--ok-bg:#e8f3ec;--me:#1f4d3f;--bot:#fff;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
@media (prefers-color-scheme:dark){:root{--bg:#141413;--card:#1e1e1c;--ink:#ecebe6;--muted:#9c988f;--line:#33322f;--accent:#7fc4a8;--accent-ink:#0f1f19;--warn:#f0a77c;--warn-bg:#3a2418;--ok:#8fd3ad;--ok-bg:#1a2e22;--me:#2c5a4b;--bot:#1e1e1c}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.5}
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--card);position:sticky;top:0;z-index:2}
header .brand{font-weight:700;letter-spacing:.02em}
header .brand small{display:block;font-weight:400;color:var(--muted);font-size:12px;letter-spacing:0}
main{max-width:760px;margin:0 auto;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px}
h1{font-size:22px;margin:0 0 6px}h2{font-size:18px;margin:0 0 10px}
p.muted,.muted{color:var(--muted);font-size:14px}
label{display:block;font-size:14px;font-weight:600;margin:12px 0 6px}
input,select,textarea{width:100%;font:inherit;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink)}
textarea{min-height:90px;resize:vertical}
button{font:inherit;font-weight:600;border:0;border-radius:10px;padding:11px 16px;background:var(--accent);color:var(--accent-ink);cursor:pointer}
button.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}
button.small{padding:7px 11px;font-size:14px}
button:disabled{opacity:.55;cursor:default}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tabs{display:flex;gap:6px;overflow-x:auto;margin:0 0 14px;padding-bottom:2px}
.tabs button{background:transparent;color:var(--muted);border:1px solid var(--line);white-space:nowrap}
.tabs button.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chat{display:flex;flex-direction:column;gap:10px;min-height:40vh}
.msg{max-width:88%;padding:10px 14px;border-radius:14px;white-space:normal;word-wrap:break-word}
.msg.user{align-self:flex-end;background:var(--me);color:#fff;border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start;background:var(--bot);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.bot p{margin:0 0 8px}.msg.bot p:last-child{margin:0}.msg.bot ul,.msg.bot ol{margin:4px 0 8px;padding-left:20px}
.msg code{background:var(--bg);padding:1px 5px;border-radius:5px;font-size:14px}
.composer{display:flex;gap:8px;margin-top:12px;position:sticky;bottom:0;background:var(--bg);padding:10px 0}
.composer textarea{min-height:48px;max-height:160px}
.alert{padding:12px 14px;border-radius:10px;margin:10px 0;font-size:15px}
.alert.warn{background:var(--warn-bg);color:var(--warn)}.alert.ok{background:var(--ok-bg);color:var(--ok)}
.alert ul{margin:6px 0 0;padding-left:18px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin:10px 0}
.check input{width:20px;height:20px;margin-top:2px;flex:none}
.item{border-top:1px solid var(--line);padding:12px 0}.item:first-child{border-top:0}
.pill{display:inline-block;font-size:12px;padding:2px 8px;border-radius:99px;border:1px solid var(--line);color:var(--muted)}
.pill.open{color:var(--warn);border-color:currentColor}.pill.done{color:var(--ok);border-color:currentColor}
.hidden{display:none!important}
a{color:var(--accent)}
.typing{color:var(--muted);font-style:italic}
.share-list label{display:flex;gap:8px;align-items:center;font-weight:400;margin:4px 0}.share-list input{width:auto}
.share-list label{flex-wrap:wrap;word-break:break-all}
#viewas{background:var(--card);border-bottom:1px solid var(--line);padding:10px 16px}
#viewas label{font-size:14px}
body.previewing #viewas{background:var(--warn-bg);color:var(--warn)}
body.previewing #viewas .muted{color:var(--warn)}
dialog{border:none;border-radius:14px;padding:18px;max-width:420px;width:calc(100% - 32px);background:var(--card,#fff);color:inherit;box-shadow:0 10px 40px rgba(0,0,0,.25)}dialog::backdrop{background:rgba(0,0,0,.4)}
.picker-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}.picker-list button{text-align:left;width:100%}
.statebox{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:0 12px}.statebox .check{margin:6px 0}button:disabled{opacity:.45;cursor:not-allowed}