/* NEXUS design tokens: drafting-paper light, blueprint dark. System fonts only (strict CSP, works offline). */
:root {
  --bg: #f3f5f7;
  --bg-grid: rgba(15, 40, 70, 0.06);
  --panel: #ffffff;
  --panel-2: #f8fafb;
  --ink: #0f1c2b;
  --muted: #566677;
  --line: #d7dee5;
  --line-strong: #b9c4cf;
  --accent: #0b6e8a;
  --accent-ink: #ffffff;
  --accent-soft: rgba(11, 110, 138, 0.1);
  --nav: #0b1b2e;
  --nav-ink: #dbe6f1;
  --nav-muted: #8fa3b8;
  --ok: #1a7f46;
  --ok-soft: rgba(26, 127, 70, 0.1);
  --warn: #9a5b00;
  --warn-soft: rgba(217, 119, 6, 0.12);
  --err: #b3261e;
  --err-soft: rgba(179, 38, 30, 0.09);
  --shadow: 0 1px 2px rgba(15, 28, 43, 0.06), 0 10px 28px -16px rgba(15, 28, 43, 0.28);
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --r: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #08111d;
    --bg-grid: rgba(120, 170, 220, 0.07);
    --panel: #0e1b2b;
    --panel-2: #0b1624;
    --ink: #e5edf5;
    --muted: #93a6b9;
    --line: #1c3047;
    --line-strong: #2a4666;
    --accent: #38bdf8;
    --accent-ink: #04121f;
    --accent-soft: rgba(56, 189, 248, 0.12);
    --nav: #050c15;
    --ok: #4ade80;
    --ok-soft: rgba(74, 222, 128, 0.12);
    --warn: #fbbf24;
    --warn-soft: rgba(251, 191, 36, 0.13);
    --err: #f87171;
    --err-soft: rgba(248, 113, 113, 0.13);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 10px 28px -16px rgba(0, 0, 0, 0.8);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #08111d;
  --bg-grid: rgba(120, 170, 220, 0.07);
  --panel: #0e1b2b;
  --panel-2: #0b1624;
  --ink: #e5edf5;
  --muted: #93a6b9;
  --line: #1c3047;
  --line-strong: #2a4666;
  --accent: #38bdf8;
  --accent-ink: #04121f;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --nav: #050c15;
  --ok: #4ade80;
  --ok-soft: rgba(74, 222, 128, 0.12);
  --warn: #fbbf24;
  --warn-soft: rgba(251, 191, 36, 0.13);
  --err: #f87171;
  --err-soft: rgba(248, 113, 113, 0.13);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 10px 28px -16px rgba(0, 0, 0, 0.8);
  color-scheme: dark;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  font: 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
}
code,
kbd,
.mono {
  font-family: var(--mono);
  font-size: 0.92em;
}
code {
  background: var(--accent-soft);
  padding: 1px 6px;
  border-radius: 4px;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.eyebrow {
  font: 600 11.5px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font: 600 13.5px/1.2 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition:
    border-color 0.12s,
    background 0.12s,
    transform 0.06s;
}
.btn:hover {
  border-color: var(--accent);
}
.btn:active {
  transform: translateY(1px);
}
.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn.primary:hover {
  filter: brightness(1.08);
}
.btn.danger {
  color: var(--err);
}
.btn.quiet {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}
.btn.quiet:hover {
  color: var(--ink);
  border-color: var(--line);
}
.btn.sm {
  padding: 5px 10px;
  font-size: 12.5px;
}
.btn.lg {
  padding: 12px 22px;
  font-size: 15px;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 9px;
  border-radius: 999px;
  font: 600 11.5px/1.5 var(--mono);
  letter-spacing: 0.04em;
  background: var(--accent-soft);
  color: var(--accent);
  white-space: nowrap;
}
.pill.ok {
  background: var(--ok-soft);
  color: var(--ok);
}
.pill.warn {
  background: var(--warn-soft);
  color: var(--warn);
}
.pill.err {
  background: var(--err-soft);
  color: var(--err);
}