:root {
  --bg: #f6f6f4; --card: #fff; --text: #1d1d1f; --muted: #6b6b70; --line: #e2e2de;
  --accent: #2f6fdf; --accent-text: #fff; --danger: #c93636; --user: #2f6fdf; --bot: #fff;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161618; --card: #222225; --text: #ececee; --muted: #9a9aa0; --line: #34343a;
    --accent: #5b8ff0; --danger: #ec6b6b; --user: #3a6fd6; --bot: #2a2a2e;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; }
a { color: var(--accent); text-decoration: none; }
.wrap { max-width: 760px; margin: 0 auto; padding: 16px; }
header.top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 12px 16px;
  border-bottom: 1px solid var(--line); background: var(--card); }
header.top .title { font-weight: 600; margin-right: auto; }
header.top nav { display: flex; gap: 14px; font-size: 14px; }
h1 { font-size: 20px; margin: 8px 0 16px; }
h2 { font-size: 16px; margin: 24px 0 10px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 10px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); font-size: 13px; white-space: pre-wrap; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea, button { font: inherit; color: inherit; }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
textarea { min-height: 120px; font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
button { padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.danger { color: var(--danger); }
button:disabled { opacity: .5; cursor: default; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 520px) { .grid2 { grid-template-columns: 1fr; } }
.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--line); color: var(--muted); }
details summary { cursor: pointer; }
[data-tip] { position: relative; }
.tip-btn { display: inline-flex; align-items: center; justify-content: center; width: 18px; height: 18px; padding: 0;
  margin-left: 6px; border-radius: 50%; font-size: 11px; font-weight: 600; line-height: 1; vertical-align: 1px;
  color: var(--muted); border-color: var(--muted); background: transparent; }
[data-tip]::after { content: attr(data-tip); display: none; position: absolute; top: calc(100% + 4px); left: 0; z-index: 20;
  width: max-content; max-width: min(340px, calc(100vw - 48px)); padding: 10px 12px; border-radius: 8px;
  background: var(--text); color: var(--bg); font-size: 13px; font-weight: 400; line-height: 1.55;
  white-space: pre-line; box-shadow: 0 4px 16px rgba(0,0,0,.18); pointer-events: none; }
[data-tip].tip-open::after { display: block; }
@media (hover: hover) { [data-tip]:has(> .tip-btn:hover)::after { display: block; } }
pre { white-space: pre-wrap; word-break: break-word; font-size: 12px; background: var(--bg); padding: 8px; border-radius: 6px; margin: 6px 0; }