/* Static chrome for the calculator page.
   Everything is scoped under .ct-static so it cannot restyle the React app,
   which is using Tailwind's own utility classes. */

.ct-static {
  --ink: #0f172a;
  --muted: #64748b;
  --faint: #94a3b8;
  --rule: #e2e8f0;
  --surface: #f8fafc;
  --accent: #2563eb;
  --arm: #d1fae5;
  --arm-line: #34d399;
  --display: "Source Serif 4", Georgia, serif;
  --body: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  font-family: var(--body);
  color: #334155;
}

.ct-static a { color: var(--accent); }

/* --- nav --- */
.ct-static.ct-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid var(--rule);
  background: #fff;
  flex-wrap: wrap;
  position: relative;
  z-index: 40;
}
.ct-nav__mark {
  font-family: var(--mono);
  font-size: 0.84rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.ct-nav__mark::before {
  content: "";
  display: inline-block;
  width: 9px; height: 9px;
  margin-right: 0.5rem;
  border-radius: 2px;
  background: var(--arm);
  border: 1.5px solid var(--arm-line);
}
.ct-nav__links { display: flex; gap: 1.15rem; flex-wrap: wrap; }
.ct-nav__links a {
  font-size: 0.84rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
  padding-bottom: 1px;
}
.ct-nav__links a:hover { color: var(--ink); border-bottom-color: var(--arm-line); }

/* --- content band below the calculator --- */
.ct-static.ct-band {
  border-top: 1px solid var(--rule);
  background: var(--surface);
  padding: 3.5rem 1.5rem 1rem;
}
.ct-band__inner { max-width: 1100px; margin: 0 auto; }
.ct-band h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 0 0 0.9rem;
  line-height: 1.2;
}
.ct-band h3 {
  font-family: var(--body);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.35rem;
}
.ct-band p { margin: 0 0 1rem; line-height: 1.65; max-width: 68ch; font-size: 16px; }
.ct-band ul.ct-plain { list-style: none; padding: 0; margin: 0 0 1.4rem; max-width: 68ch; }
.ct-band ul.ct-plain li {
  padding-left: 1.1rem;
  position: relative;
  margin-bottom: 0.45rem;
  font-size: 15.5px;
  line-height: 1.6;
}
.ct-band ul.ct-plain li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.62em;
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--arm);
  border: 1.5px solid var(--arm-line);
}
.ct-cards {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}
.ct-cards li {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 11px;
  padding: 1.05rem 1.15rem;
}
.ct-cards p { font-size: 0.87rem; color: var(--muted); margin: 0; }
.ct-cards a { text-decoration: none; }
.ct-cards a:hover { text-decoration: underline; }

/* --- footer --- */
.ct-static.ct-foot {
  background: var(--surface);
  padding: 0 1.5rem 2.5rem;
  font-size: 0.82rem;
  color: var(--faint);
}
.ct-foot__inner {
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--rule);
  padding-top: 1.3rem;
}
.ct-foot a { color: var(--muted); text-decoration: none; }
.ct-foot a:hover { color: var(--ink); text-decoration: underline; }