:root {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --border: #d8dee4;
  --text: #1f2328;
  --muted: #59636e;
  --accent: #1f6feb;
  --accent-soft: #ddf4ff;
  --ok: #1a7f37;
  --ok-soft: #dafbe1;
  --warn: #9a6700;
  --warn-soft: #fff8c5;
  --danger: #cf222e;
  --danger-soft: #ffebe9;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 var(--font); }
[hidden] { display: none !important; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* Sign-in */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card {
  width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 32px 28px; text-align: center; box-shadow: 0 8px 24px rgba(31, 35, 40, .06);
}
.login-card h1 { font-size: 18px; margin: 14px 0 6px; }
.login-card p { margin: 0 0 20px; }
.google-button { display: flex; justify-content: center; min-height: 44px; }
.brand-mark {
  display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 10px;
  background: var(--accent); color: #fff; font: 600 15px var(--mono);
}
.brand-mark.small { width: 26px; height: 26px; border-radius: 7px; font-size: 11px; }
.alert {
  margin-top: 18px; padding: 10px 12px; border-radius: 8px; text-align: left;
  background: var(--danger-soft); color: var(--danger); border: 1px solid rgba(207, 34, 46, .25);
}

/* Shell */
.topbar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 0 20px; height: 56px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; }
.user { display: flex; align-items: center; gap: 10px; min-width: 0; }
.user-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; }
.button {
  border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 6px;
  padding: 5px 12px; font: 500 13px var(--font); cursor: pointer; white-space: nowrap; text-decoration: none;
}
.button:hover { background: var(--bg); }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.button.primary:hover { filter: brightness(.95); }
.button.ghost { border-color: transparent; }

.badge {
  display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 500; background: var(--accent-soft); color: var(--accent); white-space: nowrap;
}
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.neutral { background: var(--bg); color: var(--muted); border: 1px solid var(--border); }

.layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); min-height: calc(100vh - 56px); }
.nav { border-right: 1px solid var(--border); background: var(--surface); padding: 16px 12px; }
.nav-group { margin: 14px 8px 6px; font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.nav-group:first-child { margin-top: 0; }
.nav-link {
  display: block; padding: 8px 10px; border-radius: 8px; color: var(--text); text-decoration: none; margin-bottom: 2px;
}
.nav-link:hover { background: var(--bg); }
.nav-link[aria-current="page"] { background: var(--accent-soft); }
.nav-link .title { display: flex; justify-content: space-between; gap: 8px; font-weight: 600; }
.nav-link .count { font-weight: 400; color: var(--muted); font-size: 12px; }
.nav-link .sub { display: block; color: var(--muted); font-size: 12px; }

.main { min-width: 0; padding: 24px 28px 48px; }
.api-head {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px;
}
.api-head h1 { margin: 0 0 4px; font-size: 22px; }
.api-head p { margin: 0; }
.api-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 14px; color: var(--muted); }
.api-meta strong { color: var(--text); font-weight: 600; }
.api-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.api-note { margin-top: 14px; padding: 10px 12px; border-radius: 8px; background: var(--bg); color: var(--muted); }

.swagger { margin-top: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.swagger:empty { display: none; }
.swagger .swagger-ui .information-container { display: none; }
.swagger .swagger-ui .scheme-container { box-shadow: none; border-bottom: 1px solid var(--border); padding: 14px 0; }
.swagger .swagger-ui .wrapper { padding: 0 20px; }
.swagger .swagger-ui .filter-container .operation-filter-input { border-color: var(--border); }
.loading, .empty { padding: 40px; text-align: center; color: var(--muted); }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .nav { border-right: 0; border-bottom: 1px solid var(--border); display: flex; gap: 6px; overflow-x: auto; padding: 10px 16px; }
  .nav-group { display: none; }
  .nav-link { flex: 0 0 auto; margin: 0; }
  .nav-link .sub { display: none; }
  .main { padding: 16px; }
  .topbar { padding: 0 16px; }
  .user-name, .topbar .brand .muted { display: none; }
}