:root {
  --bg: #0b1020;
  --bg-elev: #11182b;
  --bg-card: #151d33;
  --line: #243049;
  --text: #e8edf7;
  --muted: #8b97b0;
  --cyan: #3ee0f0;
  --cyan-dim: #1a4d56;
  --violet: #7c6bf0;
  --ok: #3ecf8e;
  --warn: #e8b84a;
  --bad: #ef6b7b;
  --focus: #3ee0f0;
  --font: "Segoe UI", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --mono: "Cascadia Mono", "Consolas", ui-monospace, monospace;
  --sans: "Segoe UI", system-ui, sans-serif;
  --radius: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--sans); }
body { line-height: 1.45; }
a { color: var(--cyan); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.skip { position: absolute; left: -999px; top: 8px; }
.skip:focus { left: 8px; background: var(--bg-elev); padding: 8px 12px; z-index: 20; }

#shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
#shell[hidden], #auth[hidden] { display: none !important; }
.nav { background: #0d1426; border-right: 1px solid var(--line); padding: 22px 16px; display: flex; flex-direction: column; gap: 10px; }
.brand { margin: 0; font-family: var(--font); letter-spacing: 0.12em; font-size: 13px; }
.brand span { color: var(--cyan); }
.env-pill { margin: 0 0 10px; font-size: 11px; letter-spacing: 0.14em; color: var(--warn); border: 1px solid #5a4a20; display: inline-block; padding: 2px 8px; border-radius: 999px; }
.nav a { display: block; color: var(--muted); text-decoration: none; padding: 8px 10px; border-radius: 8px; }
.nav a.active, .nav a:hover { background: var(--bg-card); color: var(--text); }
.nav-foot { margin-top: auto; color: var(--muted); font-size: 12px; }
.stage { display: flex; flex-direction: column; min-width: 0; }
.top { display: flex; align-items: center; gap: 12px; padding: 14px 22px; border-bottom: 1px solid var(--line); }
#main { padding: 22px; max-width: 1280px; }
.dock { display: none; }

h1 { font-family: var(--font); font-weight: 500; font-size: 28px; margin: 0 0 6px; }
h2 { font-family: var(--font); font-weight: 500; font-size: 18px; margin: 22px 0 10px; }
.lede, .meta { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.card .k { color: var(--muted); font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; }
.card .v { font-size: 26px; margin-top: 6px; font-variant-numeric: tabular-nums; }
.card .v.small { font-size: 16px; word-break: break-all; }
.spark { width: 100%; height: 56px; display: block; margin-top: 8px; }
.table-wrap { overflow-x: auto; margin: 12px 0 24px; }
.live-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); margin-right: 6px; animation: pulse 1.6s ease-in-out infinite; }
.badge { display: inline-block; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; padding: 2px 7px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.badge.live { color: var(--cyan); border-color: var(--cyan-dim); }
.badge.ok { color: var(--ok); border-color: #1c4a36; }
.badge.warn { color: var(--warn); border-color: #5a4a20; }
.badge.bad { color: var(--bad); border-color: #5a2430; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; }
.mono { font-family: var(--mono); font-size: 12px; word-break: break-all; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 16px; align-items: end; }
label.field { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 12px; }
input, select, button { font: inherit; }
input, select { background: var(--bg-elev); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
button, .text-btn, .icon-btn { background: var(--bg-elev); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; cursor: pointer; }
button.primary { background: #16343a; border-color: var(--cyan-dim); color: var(--cyan); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.err { color: var(--bad); }
.warn-text { color: var(--warn); }
.empty { padding: 36px 12px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: var(--radius); }
.skel { height: 72px; border-radius: var(--radius); background: linear-gradient(90deg, var(--bg-card), #1b2540, var(--bg-card)); background-size: 200% 100%; animation: sheen 1.2s linear infinite; }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { border-left: 2px solid var(--line); padding: 0 0 14px 14px; }
.login { max-width: 420px; margin: 12vh auto; padding: 28px; }
.login h1 { font-size: 32px; }
.login form { display: grid; gap: 12px; }
.palette { border: 1px solid var(--line); background: var(--bg-elev); color: var(--text); width: min(560px, 92vw); border-radius: 12px; padding: 12px; }
.palette input { width: 100%; }
.palette ul { list-style: none; padding: 8px 0 0; margin: 0; }
.palette li { padding: 8px; cursor: pointer; border-radius: 8px; }
.palette li:hover, .palette li[aria-selected="true"] { background: var(--bg-card); }

@keyframes pulse { 50% { opacity: 0.35; } }
@keyframes sheen { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) {
  .live-dot, .skel { animation: none; }
}

@media (max-width: 900px) {
  #shell { grid-template-columns: 1fr; padding-bottom: 68px; }
  .nav { display: none; }
  .dock { display: flex; position: fixed; left: 0; right: 0; bottom: 0; background: #0d1426; border-top: 1px solid var(--line); justify-content: space-around; padding: 10px; }
  .dock a { color: var(--muted); text-decoration: none; }
  #main { padding: 16px; }
  h1 { font-size: 24px; }
  table.desk { display: none; }
}
@media (min-width: 901px) {
  .cards-only { display: none; }
}