:root {
  --bg: #0b1020;
  --bg-soft: #121a33;
  --card: #161f3d;
  --border: #2a3663;
  --text: #e8ecf8;
  --muted: #9aa6c8;
  --accent: #7c8cff;
  --accent-2: #f472b6;
  --smaug: #6d7cff;
  --base: #f59e0b;
  --ok: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #1b2a5e 0%, var(--bg) 55%) no-repeat, var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); }
code { font-family: var(--mono); font-size: 0.92em; background: #0d1330; padding: 1px 5px; border-radius: 5px; }

.hero { padding: 28px 24px 8px; max-width: 1240px; margin: 0 auto; }
.hero h1 { margin: 0 0 6px; font-size: 30px; letter-spacing: -0.3px; }
.hero .sub { margin: 0 0 12px; color: var(--muted); max-width: 70ch; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 6px; }
.badge {
  font-size: 12.5px; padding: 3px 10px; border-radius: 999px;
  background: #1a2450; border: 1px solid var(--border); color: var(--text);
}
.hublive { color: var(--muted); font-size: 13px; margin: 6px 0 0; }

.tabs {
  display: flex; flex-wrap: wrap; gap: 6px; max-width: 1240px; margin: 18px auto 0;
  padding: 0 24px; border-bottom: 1px solid var(--border);
}
.tab {
  background: transparent; border: 1px solid transparent; border-bottom: none;
  color: var(--muted); padding: 9px 14px; border-radius: 10px 10px 0 0; cursor: pointer;
  font-size: 14.5px;
}
.tab:hover { color: var(--text); background: #141c3c; }
.tab.active { color: var(--text); background: var(--card); border-color: var(--border); }

main { max-width: 1240px; margin: 0 auto; padding: 22px 24px 60px; }
.panel { display: none; }
.panel.active { display: block; }

h2 { margin: 30px 0 10px; font-size: 21px; }
h3 { margin: 22px 0 8px; font-size: 16.5px; }
p, li { max-width: 96ch; }

table { border-collapse: collapse; width: 100%; font-size: 14px; }
.table-wrap { overflow-x: auto; margin: 12px 0 18px; }
th, td { border-bottom: 1px solid var(--border); padding: 8px 10px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.4px; }
td:nth-child(n+2), th:nth-child(n+2) { text-align: right; white-space: nowrap; }
table.kv td { text-align: left; white-space: normal; }
table.kv td:first-child { color: var(--muted); width: 210px; }

.callout {
  background: #14204a; border: 1px solid var(--border); border-left: 3px solid var(--accent);
  padding: 12px 14px; border-radius: 10px; margin: 14px 0; font-size: 14.5px;
}
.callout.warn { border-left-color: var(--warn); background: #2a2312; }
.note { color: var(--muted); font-size: 13.5px; }
.stats { font-family: var(--mono); font-size: 13px; color: var(--text); white-space: pre-wrap; margin: 8px 0; }
.notes { color: var(--muted); font-size: 14px; }
.status { font-size: 13.5px; color: var(--warn); }

.badge-ok { color: var(--ok); }
.badge-bad { color: var(--bad); }

.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin: 10px 0; }
.controls { gap: 16px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
.two-col.wide-left { grid-template-columns: 1.05fr 1fr; }
.two-col.wide-right { grid-template-columns: 360px 1fr; }
@media (max-width: 900px) {
  .two-col, .two-col.wide-left, .two-col.wide-right { grid-template-columns: 1fr; }
}

.field { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--muted); flex: 1 1 180px; }
.field input[type="text"], .field input[type="password"], .field input[type="number"],
.field select, .field textarea, textarea.code {
  background: #0d1330; color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 14px; font-family: inherit;
}
textarea.code { font-family: var(--mono); font-size: 12.8px; line-height: 1.5; resize: vertical; }
textarea.mono-out { color: #cfe3ff; }
.field input[type="range"] { width: 100%; }
label.check { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: var(--muted); }

button {
  border-radius: 9px; padding: 9px 15px; font-size: 14px; cursor: pointer;
  border: 1px solid var(--border); background: #1b2450; color: var(--text);
}
button.primary { background: linear-gradient(180deg, var(--accent), #5b6bf0); border-color: #5b6bf0; color: #fff; font-weight: 600; }
button.ghost { background: transparent; color: var(--muted); }
button:hover { filter: brightness(1.12); }
button:disabled { opacity: 0.55; cursor: default; }

details { margin: 12px 0; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: #101736; }
summary { cursor: pointer; color: var(--text); font-size: 14px; }

.chart { min-height: 220px; margin: 10px 0 20px; }
.figure { width: 100%; border: 1px solid var(--border); border-radius: 10px; margin: 12px 0; background: #fff; }

.recipe { position: relative; }
.recipe pre {
  background: #0d1330; border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; overflow-x: auto; font-family: var(--mono); font-size: 12.8px; line-height: 1.55;
}
.recipe .copy { position: absolute; top: 8px; right: 8px; padding: 4px 10px; font-size: 12px; }

.chat-col { display: flex; flex-direction: column; }
.chat-log {
  border: 1px solid var(--border); border-radius: 10px; background: #0d1330;
  padding: 12px; height: 420px; overflow-y: auto; margin-bottom: 10px;
}
.msg { margin: 0 0 12px; padding: 10px 12px; border-radius: 10px; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { background: #1d2a63; border: 1px solid #2c3d8a; }
.msg.assistant { background: #131b3a; border: 1px solid var(--border); }
.msg.error { background: #3a1b1b; border: 1px solid #7a2c2c; color: #ffd7d7; }
.msg .who { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; font-family: var(--mono); }

footer {
  max-width: 1240px; margin: 0 auto; padding: 20px 24px 50px;
  border-top: 1px solid var(--border); color: var(--muted); font-size: 13px;
}