:root { --bg: #f7f7f5; --fg: #1c1c1e; --muted: #6b6b70; --card: #ffffff; --line: #e2e2e0; --acc: #2b59c3; --ok: #1f8a4c; --warn: #b7791f; --bad: #c0392b; }
@media (prefers-color-scheme: dark) { :root { --bg: #141416; --fg: #ececee; --muted: #9a9aa2; --card: #1d1d21; --line: #2e2e34; --acc: #7aa2ff; --ok: #4cc38a; --warn: #e0b04f; --bad: #ff7b6b; } }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--fg); }
header { display: flex; align-items: center; gap: 16px; padding: 10px 20px; border-bottom: 1px solid var(--line); background: var(--card); }
header h1 { font-size: 20px; margin: 0; }
header #logout { margin-left: auto; }
main { max-width: 1280px; margin: 0 auto; padding: 16px; }
.muted { color: var(--muted); }
.error { color: var(--bad); min-height: 1.2em; }
button { font: inherit; padding: 7px 14px; border-radius: 8px; border: 1px solid var(--acc); background: var(--acc); color: #fff; cursor: pointer; }
button.ghost { background: transparent; color: var(--fg); border-color: var(--line); }
textarea, input, select { font: inherit; color: var(--fg); background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 8px; }
textarea { width: 100%; resize: vertical; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.row #go { margin-left: auto; }
.duel { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0; }
@media (max-width: 800px) { .duel { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; min-height: 140px; }
.card h2 { font-size: 16px; margin: 0 0 6px; }
.status { font-size: 13px; color: var(--muted); }
.answer { font-size: 17px; margin: 8px 0; white-space: pre-wrap; word-break: break-word; }
.cost { font-size: 13px; color: var(--muted); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; border: 1px solid var(--line); }
.badge.ok { color: var(--ok); border-color: var(--ok); } .badge.bad { color: var(--bad); border-color: var(--bad); } .badge.warn { color: var(--warn); border-color: var(--warn); }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--line); }
.tabs button { background: transparent; color: var(--fg); border: 1px solid transparent; border-bottom: none; border-radius: 8px 8px 0 0; }
.tabs button.on { border-color: var(--line); background: var(--card); }
.tab { display: none; background: var(--card); border: 1px solid var(--line); border-top: none; padding: 14px; border-radius: 0 0 12px 12px; }
.tab.on { display: block; }
.pre { white-space: pre-wrap; word-break: break-word; font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace; margin: 0; max-height: 70vh; overflow: auto; }
.split { display: grid; grid-template-columns: 2fr 1fr; gap: 12px; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.graph { height: 560px; border: 1px solid var(--line); border-radius: 10px; }
.side { max-height: 560px; overflow: auto; font-size: 13px; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; border-bottom: 1px solid var(--line); padding: 5px 8px; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.bar { height: 8px; background: var(--acc); border-radius: 4px; min-width: 2px; }
.step { padding: 6px 0; border-bottom: 1px dashed var(--line); }
.login-box { max-width: 360px; margin: 12vh auto; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.login-box label { display: block; margin: 10px 0; } .login-box input { width: 100%; margin-top: 4px; }
.login-box button { width: 100%; margin-top: 8px; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
tr.clickable { cursor: pointer; } tr.clickable:hover td { background: var(--bg); }

.options { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 8px 0; }
.options .ask-q { width: 100%; font-weight: 600; }
.reasoning { padding: 12px 16px; overflow: auto; height: 100%; box-sizing: border-box; }
.reasoning li { margin-bottom: 10px; }
#conv { font-size: 12px; }