:root {
  --bg: #f7f6f3;
  --panel: #ffffff;
  --text: #1f1f1d;
  --muted: #6b6a65;
  --border: #e3e1db;
  --accent: #b5562f;
  --accent-text: #ffffff;
  --code-bg: #f1efe9;
  --ok: #2f7a4b;
  --err: #b3261e;
  --think: #6a5acd;
  --warn-bg: #fdf0e6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1a18;
    --panel: #24231f;
    --text: #ecebe6;
    --muted: #a09e96;
    --border: #3a3833;
    --accent: #d9774d;
    --code-bg: #2d2b27;
    --ok: #6cc28f;
    --err: #f28b82;
    --think: #a99cf0;
    --warn-bg: #3a2a20;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}
#app { display: grid; grid-template-columns: var(--chat-w, 42%) 6px minmax(0, 1fr); height: 100vh; }
#app.collapsed { grid-template-columns: minmax(0, 1fr); }
#app.collapsed #chat, #app.collapsed #splitter { display: none; }
#app.dragging, #app.dragging * { cursor: col-resize !important; user-select: none; }
#splitter { cursor: col-resize; background: linear-gradient(var(--border), var(--border)) center / 1px 100% no-repeat; position: relative; }
#splitter:hover, #splitter:focus-visible, #app.dragging #splitter { background: var(--accent); outline: none; }
#splitter::after { content: ""; position: absolute; inset: 0 -4px; }
button, select, textarea, input {
  font: inherit; color: var(--text); background: var(--panel);
  border: 1px solid var(--border); border-radius: 8px;
}
button { padding: 5px 12px; cursor: pointer; }
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
select { padding: 4px 6px; }

#chat { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--bg); }
.bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--panel); }
.bar { flex-wrap: wrap; }
.spacer { flex: 1; }
#project { max-width: 170px; font-weight: 600; }
#sessions { max-width: 170px; min-width: 0; }
button.danger { color: var(--err); }

#messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.empty { color: var(--muted); margin: auto 12px; text-align: center; }
.empty .examples { font-size: 13px; }
.msg { padding: 10px 12px; border-radius: 10px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.user { background: var(--panel); border: 1px solid var(--border); align-self: flex-end; max-width: 90%; }
.msg.user .meta { display: block; font-size: 11px; color: var(--muted); margin-top: 4px; }
.msg.text { background: transparent; padding: 2px 4px; }
.msg.error { background: var(--warn-bg); color: var(--err); }
details { border: 1px solid var(--border); border-radius: 8px; background: var(--panel); }
details > summary { cursor: pointer; padding: 6px 10px; font-size: 13px; list-style: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
details > summary::-webkit-details-marker { display: none; }
details.thinking { border-style: dashed; color: var(--think); }
details.thinking > div { padding: 0 10px 8px; white-space: pre-wrap; font-size: 13px; }
details.tool pre { margin: 0; padding: 8px 10px; background: var(--code-bg); font: 12px/1.45 ui-monospace, Consolas, monospace; white-space: pre-wrap; max-height: 320px; overflow: auto; border-top: 1px solid var(--border); }
details.tool img { display: block; max-width: 100%; border-top: 1px solid var(--border); }
details.tool code { color: var(--muted); }
.ok { color: var(--ok); }
.bad { color: var(--err); }
.done { font-size: 12px; color: var(--muted); }

#composer { border-top: 1px solid var(--border); padding: 10px 14px; background: var(--panel); }
#input { width: 100%; resize: vertical; padding: 8px 10px; min-height: 64px; }
.row { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.row.end { justify-content: flex-end; }
#status { flex: 1; color: var(--muted); font-size: 12px; }

#dock { display: grid; grid-template-columns: 180px 1fr; min-width: 0; min-height: 0; }
#library { border-right: 1px solid var(--border); background: var(--panel); overflow-y: auto; padding: 10px 8px; }
#library h3 { font-size: 12px; color: var(--muted); letter-spacing: .04em; margin: 4px 6px 8px; }
#plugin-list { list-style: none; margin: 0; padding: 0; }
#plugin-list button { width: 100%; display: flex; align-items: center; gap: 6px; text-align: left; border: 0; border-radius: 6px; padding: 6px 8px; background: transparent; }
#plugin-list button:hover { background: var(--code-bg); }
#plugin-list button.active { background: var(--code-bg); font-weight: 600; }
#plugin-list .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#plugin-list .dot { color: var(--ok); font-size: 10px; }
#plugin-list .err { color: var(--err); font-weight: 700; }
#library .hint { margin: 6px; }
#dock-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
#dock-bar { display: flex; align-items: flex-end; border-bottom: 1px solid var(--border); background: var(--panel); min-height: 41px; }
#expand-chat { margin: 0 4px 6px 8px; white-space: nowrap; font-size: 13px; padding: 3px 10px; }
#expand-chat.busy::after { content: " ●"; color: var(--accent); }
#tabs { flex: 1; display: flex; gap: 2px; padding: 6px 8px 0; min-width: 0; overflow-x: auto; }
.tab { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border: 1px solid transparent; border-bottom: 0; border-radius: 8px 8px 0 0; cursor: pointer; white-space: nowrap; }
.tab.active { background: var(--bg); border-color: var(--border); }
.tab .err { color: var(--err); font-weight: 700; }
.tab button { border: 0; background: transparent; padding: 0 2px; color: var(--muted); }
#banner { display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: var(--warn-bg); color: var(--err); border-bottom: 1px solid var(--border); }
#banner[hidden] { display: none; }
#banner-text { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
#dock-area { flex: 1; position: relative; background: #fff; }
#dock-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); background: var(--bg); }

dialog { border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); width: min(460px, 90vw); }
dialog h2 { margin-top: 0; font-size: 18px; }
dialog label { display: grid; gap: 6px; }
dialog input { padding: 6px 8px; }
.hint { color: var(--muted); font-size: 12px; }

dialog.wide { width: min(640px, 92vw); max-height: 86vh; }
.version-form { display: grid; gap: 6px; margin-bottom: 10px; }
.version-form input, .version-form textarea { padding: 6px 8px; width: 100%; }
.check { display: flex !important; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); margin: 6px 0; }
#version-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; max-height: 46vh; overflow-y: auto; }
#version-list li { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
#version-list li.auto { border-style: dashed; }
#version-list .head { display: flex; align-items: baseline; gap: 8px; }
#version-list .name { font-weight: 600; flex: 1; overflow-wrap: anywhere; }
#version-list .when, #version-list .changes { font-size: 12px; color: var(--muted); }
#version-list .note { font-size: 13px; margin: 4px 0 0; white-space: pre-wrap; }
#version-list .actions { display: flex; gap: 6px; justify-content: flex-end; margin-top: 6px; }
#version-list .actions button { font-size: 12px; padding: 3px 10px; }
#version-list button.confirm { background: var(--err); border-color: var(--err); color: #fff; }

#pack-form label:not(.check) { margin-bottom: 8px; }
#pack-form select, #pack-form input:not([type]) { padding: 6px 8px; width: 100%; }
#pack-status { white-space: pre-wrap; overflow-wrap: anywhere; }
#pack-status.ok { color: var(--ok); }
#pack-status.bad { color: var(--err); }
/* A packed app without the agent: just the plugin library and the plugins. */
#app.player { grid-template-columns: minmax(0, 1fr); }
#app.player #chat, #app.player #splitter, #app.player #expand-chat { display: none !important; }

#repairs-table { width: 100%; border-collapse: collapse; font-size: 12px; display: block; max-height: 50vh; overflow: auto; }
#repairs-table th, #repairs-table td { text-align: left; padding: 5px 6px; border-bottom: 1px solid var(--border); vertical-align: top; overflow-wrap: anywhere; }
#repairs-table th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel); }
#repairs-table td.err { font-family: ui-monospace, Consolas, monospace; }

/* The chat alone, in the pop-up window opened from the floating ball. */
#app.popup { grid-template-columns: minmax(0, 1fr); }
#app.popup #dock, #app.popup #splitter { display: none !important; }

#pack-caps { border: 1px solid var(--border); border-radius: 8px; margin: 8px 0; padding: 6px 10px 10px; display: grid; gap: 2px; }
#pack-caps legend { font-size: 12px; color: var(--muted); padding: 0 4px; }
#pack-caps label:not(.check) { display: grid; gap: 4px; font-size: 13px; margin-top: 6px; }
#pack-caps input:not([type=checkbox]), #pack-caps select { padding: 5px 8px; }
.cap-row { font-size: 12px; color: var(--muted); margin-top: 4px; }
.cap-row label { display: inline-flex !important; gap: 4px; margin-right: 10px; color: var(--text); }

#cloud-box h3 { font-size: 14px; margin: 4px 0 8px; }
#cloud-box { border-bottom: 1px solid var(--border); padding-bottom: 8px; margin-bottom: 8px; }
#cloud-ledger { max-height: 160px; overflow: auto; padding-left: 18px; margin: 6px 0 0; }
#key-box summary { cursor: pointer; font-size: 12px; color: var(--muted); margin: 6px 0; }
#credits { font-size: 12px; white-space: nowrap; }
#credits.low { color: #b42318; }
#pack-cloud { margin-top: 8px; }