/* TTAT Analytics public site.
   Palette from the TTAT Brand Bible: Midnight Indigo, Slate Fog, Bone White, Ember Amber.
   System fonts only: no web fonts, no external requests. */

:root {
  --midnight: #0B1220;
  --midnight-raised: #111a2c;
  --slate: #2B3A4A;
  --bone: #E7E2D6;
  --bone-muted: #B9B3A6;
  --amber: #E8A33D;
  --amber-dim: #C97B2E;
  --radius: 10px;
  --measure: 46rem;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--midnight);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
}

/* Accessibility */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.5rem 0.9rem;
  background: var(--amber);
  color: var(--midnight);
  border-radius: 6px;
  font-weight: 600;
  z-index: 10;
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 3px;
}

/* Layout */
.wrap {
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  border-bottom: 1px solid var(--slate);
  background: var(--midnight-raised);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--bone);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}
.brand img { width: 30px; height: 30px; }
.brand:hover { color: var(--amber); }

.site-nav ul {
  display: flex;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav a { color: var(--bone-muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--amber); }

main { padding: 2.5rem 0 3.5rem; }

/* Typography */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--bone);
}
h1 { font-size: clamp(2rem, 5vw, 2.75rem); margin: 0 0 0.5rem; letter-spacing: 0.01em; }
h2 { font-size: 1.45rem; margin: 2.5rem 0 0.75rem; padding-top: 0.5rem; }
h3 { font-size: 1.12rem; margin: 1.6rem 0 0.5rem; }

p, ul, ol, dl { margin: 0 0 1rem; }
ul, ol { padding-left: 1.3rem; }
li { margin-bottom: 0.4rem; }
li::marker { color: var(--amber-dim); }

a { color: var(--amber); text-underline-offset: 0.18em; }
a:hover { color: var(--bone); }

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--slate);
  color: var(--bone);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

strong { color: var(--bone); }

.lead {
  font-size: 1.2rem;
  color: var(--bone-muted);
  max-width: 38rem;
  margin-bottom: 1.75rem;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--amber);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.muted { color: var(--bone-muted); }

/* Components */
.notice {
  border: 1px solid var(--slate);
  border-left: 4px solid var(--amber);
  background: var(--midnight-raised);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
.notice h2, .notice h3 { margin-top: 0; padding-top: 0; font-size: 1.1rem; }
.notice p:last-child { margin-bottom: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 1.25rem 0 0;
}
.card {
  border: 1px solid var(--slate);
  background: var(--midnight-raised);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
}
.card h3 { margin-top: 0; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }

.scope-list { list-style: none; padding: 0; }
.scope-list li {
  border: 1px solid var(--slate);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  margin-bottom: 0.75rem;
  background: var(--midnight-raised);
}
.scope-list code { display: inline-block; margin-bottom: 0.3rem; }

.toc {
  border: 1px solid var(--slate);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  background: var(--midnight-raised);
  margin: 1.5rem 0 0;
}
.toc h2 { margin: 0 0 0.5rem; padding: 0; font-size: 1rem; }
.toc ol { margin: 0; columns: 2 16rem; column-gap: 2rem; }
.toc li { break-inside: avoid; }

.effective {
  display: inline-block;
  color: var(--bone-muted);
  border: 1px solid var(--slate);
  border-radius: 999px;
  padding: 0.2rem 0.85rem;
  font-size: 0.92rem;
  margin: 0 0 1rem;
}

.button {
  display: inline-block;
  background: var(--amber);
  color: var(--midnight);
  font-weight: 600;
  text-decoration: none;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
}
.button:hover { background: var(--bone); color: var(--midnight); }

.site-footer {
  border-top: 1px solid var(--slate);
  color: var(--bone-muted);
  font-size: 0.92rem;
  padding: 1.5rem 0 2.25rem;
}
.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0 0 0.75rem;
}
.site-footer a { color: var(--bone-muted); }
.site-footer a:hover { color: var(--amber); }
.site-footer p { margin: 0; }

@media (max-width: 30rem) {
  body { font-size: 1rem; }
  main { padding-top: 1.75rem; }
  .site-nav ul { gap: 1rem; }
}

@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .skip-link { display: none; }
  a { color: #000; }
  .notice, .card, .scope-list li, .toc { border-color: #999; background: none; }
}