:root {
  --bg: #0b0d12;
  --panel: #141822;
  --panel-2: #1b2130;
  --line: #262d3d;
  --text: #e7ecf5;
  --muted: #8b95a8;
  --accent: #5b8cff;
  --accent-2: #22d3a6;
  --danger: #ff6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(11,13,18,.85);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { font-weight: 700; letter-spacing: -.2px; font-size: 17px; }
.logo span { color: var(--accent); }
nav a { margin-left: 18px; color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--text); text-decoration: none; }
main { padding: 28px 0 60px; }
h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: -.4px; }
h2 { font-size: 18px; margin: 0 0 14px; }
h3 { font-size: 15px; margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 22px; font-size: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px; margin-bottom: 18px;
}
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
@media (max-width: 760px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
input[type=text], input[type=email], input[type=password], textarea {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
  font: inherit; outline: none;
}
input:focus, textarea:focus { border-color: var(--accent); }
textarea { min-height: 120px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
button, .btn {
  display: inline-block; background: var(--accent); color: #fff; border: 0;
  border-radius: 8px; padding: 10px 18px; font: inherit; font-weight: 600;
  cursor: pointer; margin-top: 16px;
}
button:hover, .btn:hover { filter: brightness(1.1); text-decoration: none; }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
.btn-sm { padding: 6px 12px; font-size: 13px; margin-top: 0; }
.stat { font-size: 28px; font-weight: 700; letter-spacing: -.5px; }
.stat-label { font-size: 12px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); }
.badge {
  display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 99px;
  border: 1px solid var(--line); color: var(--muted); vertical-align: middle;
}
.badge.ok { color: var(--accent-2); border-color: rgba(34,211,166,.35); background: rgba(34,211,166,.08); }
.badge.warn { color: #ffcc66; border-color: rgba(255,204,102,.35); background: rgba(255,204,102,.08); }
.badge.mock { color: #c4a0ff; border-color: rgba(196,160,255,.35); background: rgba(196,160,255,.08); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
.bar { height: 8px; border-radius: 99px; background: var(--panel-2); overflow: hidden; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }
pre.answer { white-space: pre-wrap; background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; padding: 12px; font-size: 13px; margin: 8px 0 0; }
.error { background: rgba(255,107,107,.1); border: 1px solid rgba(255,107,107,.35); color: #ffb3b3; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.ok-msg { background: rgba(34,211,166,.1); border: 1px solid rgba(34,211,166,.35); color: #9ff0d8; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.auth-wrap { max-width: 400px; margin: 60px auto; }
.footer { color: var(--muted); font-size: 12px; text-align: center; padding: 24px 0; }
.pill-row { display: flex; gap: 10px; flex-wrap: wrap; }
.hero { padding: 40px 0 10px; }
.hero h1 { font-size: 34px; }