:root {
  --bg: #ffffff;
  --ink: #1f2933;
  --muted: #647088;
  --accent: #0b66c3;
  --navy: #0b2540;
  --border: #e3e8ef;
  --code-bg: #f5f7fa;
  --code-ink: #243b53;
  --maxw: 820px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--navy);
  color: #fff;
  padding: 10px 20px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}
.topbar .brand { color: #fff; font-weight: 700; font-size: 17px; }
.topbar .brand .zee { color: #00B0DA; }   /* brand cyan (exact, matches the app wordmark) */
.topbar .brand .maps { color: #b4bcc0; }  /* brand gray (#60676A) lightened for the dark topbar */
.topbar .badge {
  background: #1d4e89;
  color: #cfe6ff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 10px;
  padding: 1px 9px;
}
.topbar .topnav { margin-left: auto; display: flex; gap: 18px; }
.topbar .topnav a { color: #cfe6ff; font-size: 14px; }

/* layout */
.layout { display: flex; align-items: flex-start; }
.sidebar {
  position: sticky;
  top: 49px;
  flex: 0 0 250px;
  max-height: calc(100vh - 49px);
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 22px 16px 40px;
}
.sidebar .sb-section {
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
  margin: 18px 8px 6px;
}
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar li a {
  display: block;
  padding: 5px 8px;
  border-radius: 6px;
  color: var(--ink);
  font-size: 14.5px;
}
.sidebar li a:hover { background: var(--code-bg); text-decoration: none; }
.sidebar li.active a { background: #e7f1fb; color: var(--accent); font-weight: 600; }

/* content */
.content {
  flex: 1 1 auto;
  min-width: 0;
  padding: 28px 40px 64px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.content h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 18px; }
.content h2 {
  font-size: 22px;
  margin: 38px 0 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.content h3 { font-size: 17.5px; margin: 26px 0 8px; }
.content code {
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 1.5px 5px;
  border-radius: 4px;
  font-size: 88%;
  font-family: "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}
.content pre {
  background: #0b2540;
  color: #e6edf3;
  padding: 14px 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.5;
}
.content pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.content table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 14.5px; }
.content th, .content td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; vertical-align: top; }
.content th { background: var(--code-bg); }
.content blockquote {
  margin: 16px 0;
  padding: 2px 16px;
  border-left: 4px solid var(--accent);
  background: #f3f8fd;
  color: #33475b;
}
.content blockquote.note { border-left-color: #b58105; background: #fdf7e9; }

/* status pills used in guides */
.pill { display: inline-block; font-size: 11.5px; font-weight: 700; border-radius: 10px; padding: 1px 9px; vertical-align: middle; }
.pill.live { background: #e3f6e8; color: #14743a; }
.pill.planned { background: #fdf0d8; color: #8a5a00; }
.pill.partial { background: #e7eefb; color: #244a9c; }

.cardgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 18px 0; }
.cardgrid a.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--ink);
}
.cardgrid a.card:hover { border-color: var(--accent); text-decoration: none; box-shadow: 0 2px 8px rgba(11,102,195,.08); }
.cardgrid a.card b { color: var(--accent); }

.pagefoot { margin-top: 56px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13.5px; }
.header-anchor { color: var(--muted); text-decoration: none; }

@media (max-width: 800px) {
  .sidebar { display: none; }
  .content { padding: 22px 18px 48px; }
}