/* Scientific research style */

:root {
  --paper-bg: #ffffff;
  --ink: #101828;
  --muted-ink: #344054;
  --accent: #005ea8;
  --accent-strong: #004a86;
  --border: #cfd8e3;
  --code-bg: #f6f8fb;
  --panel-bg: #f9fbff;
}

body {
  background: var(--paper-bg);
  color: var(--ink);
  font-family: "Source Serif 4", "Noto Serif", Georgia, serif;
  font-size: clamp(17px, 1rem + 0.2vw, 20px);
  line-height: 1.78;
  text-rendering: optimizeLegibility;
}

main.content {
  max-width: 1020px;
  padding: 0 1rem 2rem;
}

h1,
h2,
h3,
h4 {
  color: #0f2942;
  font-family: "IBM Plex Sans", "Noto Sans", "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.9rem, 1.5rem + 1vw, 2.35rem);
  margin-bottom: 0.8rem;
}

h2 {
  font-size: clamp(1.35rem, 1.15rem + 0.5vw, 1.7rem);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
  margin-top: 2rem;
}

h3 {
  font-size: clamp(1.15rem, 1.05rem + 0.35vw, 1.35rem);
}

p,
li {
  color: var(--ink);
}

a {
  color: var(--accent);
  text-underline-offset: 2px;
  text-decoration-thickness: 0.08em;
}

a:hover {
  color: var(--accent-strong);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid #ffbf47;
  outline-offset: 2px;
  border-radius: 2px;
}

/* Improve legibility of analysis outputs */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.98rem;
  background: #ffffff;
}

th,
td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.7rem;
  text-align: left;
}

th {
  background: #e6eef9;
  color: #122842;
}

tbody tr:nth-child(even) {
  background: #f7fafe;
}

pre,
code {
  font-family: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
}

code {
  font-size: 0.92em;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  overflow-x: auto;
}

blockquote {
  border-left: 4px solid #99b8da;
  margin: 1.1rem 0;
  padding: 0.35rem 1rem;
  background: var(--panel-bg);
  color: #223a53;
}

figure {
  margin: 1.5rem auto;
}

figcaption,
.quarto-figure-caption {
  color: var(--muted-ink);
  font-size: 0.9rem;
  text-align: center;
}

.math.display {
  padding: 0.5rem 0.75rem;
  background: #f4f7fb;
  border-left: 3px solid #9ab4d0;
}

/* Keep navbar readable against bootstrap dark theme */
.navbar .nav-link,
.navbar .navbar-brand,
.navbar .menu-text {
  font-family: "IBM Plex Sans", "Noto Sans", "Segoe UI", sans-serif;
  font-weight: 600;
}

.navbar .nav-link {
  opacity: 0.95;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 768px) {
  body {
    line-height: 1.7;
  }

  main.content {
    padding: 0 0.85rem 1.25rem;
  }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}