:root {
  --bg: #f6f7f9; --card: #fff; --text: #16181d; --muted: #667085; --line: #e4e7ec;
  --accent: #2f5bea; --accent-text: #fff; --ok: #12805c; --warn: #b54708; --danger: #c0362c;
  --code-bg: #0f1420; --code-text: #d6deeb; --sub: #f9fafb;
  --hover: #f2f4f7; --accent-soft: #eef2fe; --inline-code: #f2f4f7;
  --j-key: #82aaff; --j-str: #c3e88d; --j-num: #f78c6c; --j-lit: #c792ea;
  --sidebar-w: 248px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116; --card: #161b22; --text: #e6e9ef; --muted: #8b95a5; --line: #2a313c;
    --accent: #6c8cff; --accent-text: #0e1116; --ok: #3fb68b; --warn: #e0a44b; --danger: #f0776d;
    --code-bg: #0a0d12; --code-text: #d6deeb; --sub: #11161d;
    --hover: #1c232d; --accent-soft: #1b2440; --inline-code: #1f2630;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", "Noto Sans KR", sans-serif; }
h1 { font-size: 22px; margin: 0; } h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 16px 0 8px; }
a { color: var(--accent); }
.muted { color: var(--muted); } .center { text-align: center; } .small { font-size: 13px; }
.pad { padding: 48px 16px; }
.ok { color: var(--ok); } .warn { color: var(--warn); } .danger { color: var(--danger); }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.icon { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round; }

/* ── 레이아웃: 사이드바 + 본문 ── */
.layout { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column;
  background: var(--card); border-right: 1px solid var(--line); }
.nav { flex: 1; overflow-y: auto; padding: 18px 12px; }
.brand { font-weight: 700; font-size: 17px; padding: 0 10px 14px; }
.nav-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 7px 10px; border-radius: 8px;
  color: var(--text); text-decoration: none; font-size: 14px; border: 0; background: none; text-align: left; }
.nav-item:hover { background: var(--hover); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-item.sub { padding-left: 30px; color: var(--muted); }
.nav-item.sub.active { color: var(--accent); }
.nav-section { margin: 22px 10px 6px; font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .02em; }
.nav-group + .nav-group { margin-top: 10px; }
.nav-label { padding: 2px 10px; font-size: 12px; color: var(--muted); }
.nav-model { margin-top: 2px; }
.nav-model-name { display: flex; align-items: center; gap: 10px; padding: 6px 10px 4px; font-weight: 600; font-size: 14px; }
.nav-empty { padding: 0 10px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; margin: 0 4px; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.danger { background: var(--danger); }
.nav-foot { border-top: 1px solid var(--line); padding: 12px; }
.who { padding: 0 10px 8px; min-width: 0; }
.who .row { gap: 6px; }
.logout { color: var(--muted); }
.main { min-width: 0; padding: 28px 32px 64px; }
.page { max-width: 1000px; margin: 0 auto; }
.page:has(.pg) { max-width: 1400px; }
.topbar, .backdrop { display: none; }
.menu-btn { display: inline-flex; align-items: center; padding: 6px; }
.menu-btn .icon { width: 20px; height: 20px; }

@media (max-width: 860px) {
  .layout { display: block; }
  .topbar { display: flex; align-items: center; gap: 10px; position: sticky; top: 0; z-index: 20;
    padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
  .topbar .brand { padding: 0; }
  .sidebar { position: fixed; z-index: 40; left: 0; top: 0; width: min(280px, 85vw); transform: translateX(-100%);
    transition: transform .2s ease; }
  .menu-open .sidebar { transform: none; box-shadow: 0 0 40px rgba(0, 0, 0, .25); }
  .menu-open .backdrop { display: block; position: fixed; inset: 0; z-index: 30; background: rgba(0, 0, 0, .35); }
  .main { padding: 20px 16px 48px; }
}
@media (prefers-reduced-motion: reduce) { .sidebar { transition: none; } }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  flex-wrap: wrap; margin-bottom: 20px; }
.page-head h1 { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.page-head p { margin: 4px 0 0; }

/* ── 공통 요소 ── */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; margin-bottom: 16px; }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.nowrap { flex-wrap: nowrap; }
.spread { justify-content: space-between; }
.grow { flex: 1; }
.stack > * + * { margin-top: 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.tile { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.tile b { display: block; font-size: 20px; font-variant-numeric: tabular-nums; }
button, a.button { font: inherit; cursor: pointer; border-radius: 8px; padding: 6px 12px;
  border: 1px solid var(--line); background: var(--card); color: var(--text); }
a.button { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; white-space: nowrap; }
button:hover, a.button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent);
  display: inline-flex; align-items: center; gap: 6px; }
button.danger { color: var(--danger); }
button.sm, a.button.sm { padding: 3px 9px; font-size: 13px; }
button:disabled { opacity: .5; cursor: default; }
button.nav-item { cursor: pointer; }
button.nav-item:hover { border: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input, select { font: inherit; padding: 6px 8px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); }
input[type=checkbox] { padding: 0; margin: 0; width: 15px; height: 15px; }
input.num { width: 110px; } input.name { width: 200px; }
label.check { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }
.bar { height: 8px; border-radius: 4px; background: var(--line); overflow: hidden; margin: 6px 0; }
.bar > i { display: block; height: 100%; background: var(--accent); }
.bar > i.hot { background: var(--danger); }
.badge { font-size: 12px; font-weight: 500; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line);
  color: var(--muted); white-space: nowrap; }
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.danger { color: var(--danger); border-color: var(--danger); }
.badge.warn { color: var(--warn); border-color: var(--warn); }
code { font: 13px ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--inline-code);
  padding: 1px 5px; border-radius: 5px; }
pre { background: var(--code-bg); color: var(--code-text); padding: 12px 14px; border-radius: 10px;
  overflow-x: auto; font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; margin: 8px 0 0; }
code.key { font-size: 14px; word-break: break-all; background: none; padding: 0; }
.secret { border: 1px solid var(--warn); border-radius: 10px; padding: 12px; margin-bottom: 12px; }
.panel { border: 1px dashed var(--line); border-radius: 10px; padding: 12px; margin-top: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 7px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; white-space: nowrap; }
/* 좁은 화면에서는 표를 찌그러뜨리지 않고 가로 스크롤한다. */
.scroll > table { min-width: 560px; }
td.r, th.r { text-align: right; font-variant-numeric: tabular-nums; }
tr.detail > td { background: var(--sub); }
.scroll { overflow-x: auto; }
.quota + .quota { margin-top: 14px; }
.login { max-width: 420px; margin: 96px auto 0; text-align: center; }
.login p { margin: 12px 0 24px; }

/* ── 코드 블록 / JSON ── */
.code { position: relative; }
.code pre { padding-right: 72px; }
.code-copy { position: absolute; top: 8px; right: 8px; }
.code-copy button { background: transparent; color: var(--code-text); border-color: #2c3546; }
.j-key { color: var(--j-key); } .j-str { color: var(--j-str); }
.j-num { color: var(--j-num); } .j-lit { color: var(--j-lit); }

/* ── 사용해보기 ── */
.lead { margin: -8px 0 16px; }
.pg { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 1200px) { .pg { grid-template-columns: minmax(0, 1fr); } }
.pane { margin-bottom: 0; display: flex; flex-direction: column; gap: 10px; }
.pane-head h2 { margin: 0; }
.examples { gap: 6px; }
.editor, pre.out { width: 100%; min-height: 460px; margin: 0; border-radius: 10px;
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; tab-size: 2; }
.editor { display: block; resize: vertical; padding: 12px 14px; border: 1px solid var(--line);
  background: var(--code-bg); color: var(--code-text); caret-color: var(--code-text); }
.editor:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
pre.out { max-height: 72vh; overflow: auto; white-space: pre; }
.check-line { margin: -4px 0 0; min-height: 1.4em; }
.out-meta { min-height: 24px; }
.media-out { display: flex; flex-direction: column; gap: 10px; padding: 16px; border: 1px solid var(--line); border-radius: 10px; }
.media-out[hidden] { display: none; }
.media-out audio { width: 100%; }
.media-out img { display: block; max-width: 100%; height: auto; margin: 0 auto; border-radius: 8px; }
.kbd { font-size: 12px; }
pre.out.compact { min-height: 0; max-height: 50vh; }
.sim-table th, .sim-table td { font-variant-numeric: tabular-nums; }
.sim-table th.sim-label { text-align: left; font-weight: 400; white-space: nowrap; }
.sim-table td.sim-best { font-weight: 700; color: var(--accent); }
.chat-text { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.6; }
.reasoning { border-left: 3px solid var(--line); padding: 2px 0 2px 12px; color: var(--muted); }
.reasoning summary { cursor: pointer; font-size: 13px; }
.reasoning .chat-text { font-size: 14px; margin-top: 6px; max-height: 40vh; overflow: auto; }
.tool-call { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.tool-call pre { margin-top: 6px; }

/* ── API 문서 ── */
.doc-table td { vertical-align: top; }
.doc-table td:first-child { white-space: nowrap; }
.tabs { display: flex; gap: 4px; margin-top: 4px; border-bottom: 1px solid var(--line); }
.tab { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; color: var(--muted);
  padding: 6px 10px; margin-bottom: -1px; font-size: 14px; }
.tab:hover { border-color: transparent; color: var(--text); }
.tab.on { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.steps, .tips { margin: 0; padding-left: 22px; }
.steps li + li, .tips li + li { margin-top: 6px; }