Chem324/custom.css at master · DPotoyan/Chem324 · GitHub

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/* ============================================================
   Chem 3240 — Iowa State theme for the MyST book-theme
   Brand: Cardinal #C8102E · Gold #F1BE48
   (Avenir on Apple devices; Mulish — a close match — everywhere else)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Mulish:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --isu-cardinal: #c8102e;
  --isu-gold: #f1be48;
  --solution-violet: #7c3aed;
}

/* ---- Typography ----------------------------------------------- */
html, body, button, input, select, textarea {
  font-family: 'Avenir', 'Avenir Next', 'Mulish', 'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Avenir', 'Avenir Next', 'Mulish', 'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
  letter-spacing: -0.012em;
  font-weight: 700;
}

/* Comfortable reading size & line rhythm in the article body */
main, article {
  font-size: 1.05rem;
  line-height: 1.72;
}

/* ---- Branded content links (cardinal text, gold hover) -------- */
main a, article a {
  color: var(--isu-cardinal) !important;
  text-decoration: none !important;
  border-bottom: none !important;
  transition: background 0.15s ease, color 0.15s ease;
}
main a:hover, article a:hover {
  background: var(--isu-gold) !important;
  border-radius: 0.2em;
  color: #1a1a1a !important;
}

/* ---- ISU gold text selection ---------------------------------- */
::selection      { background: var(--isu-gold); color: #1a1a1a; }
::-moz-selection { background: var(--isu-gold); color: #1a1a1a; }

/* ---- Keep the logo tidy in the header ------------------------- */
header img[src*="isu-logo"] { max-height: 38px; width: auto; }

/* ============================================================
   Admonition palette — distinct, consistent cards
   note=blue · tip=green · warning=amber (theme defaults)
   important=Cardinal · solution=violet (overridden below)
   ============================================================ */

/* IMPORTANT -> Cardinal (key equations, laws, definitions to remember) */
.myst-admonition-important { border-left-color: var(--isu-cardinal) !important; }
.myst-admonition-important .myst-admonition-header {
  background-color: rgba(200, 16, 46, 0.09) !important;
  color: var(--isu-cardinal) !important;
}
.myst-admonition-important .myst-admonition-header svg { color: var(--isu-cardinal) !important; }

/* SOLUTION -> violet collapsible card (worked answers to problems) */
.myst-admonition.solution { border-left-color: var(--solution-violet) !important; }
.myst-admonition.solution .myst-admonition-header {
  background-color: rgba(124, 58, 237, 0.10) !important;
  color: var(--solution-violet) !important;
}
.myst-admonition.solution .myst-admonition-header svg { color: var(--solution-violet) !important; }

/* ---- Figures: clean, readable numbered captions --------------- */
figure figcaption {
  font-size: 0.92rem;
  line-height: 1.5;
  color: #475569;
}
figure figcaption .caption-number,
figure figcaption strong:first-child { color: var(--isu-cardinal); font-weight: 700; }
:is(html.dark, html[data-theme="dark"]) figure figcaption { color: #cbd5e1; }

/* ---- Dark mode: gold content links ---------------------------- */
:is(html.dark, html[data-theme="dark"]) main a,
:is(html.dark, html[data-theme="dark"]) article a { color: var(--isu-gold) !important; }
:is(html.dark, html[data-theme="dark"]) main a:hover,
:is(html.dark, html[data-theme="dark"]) article a:hover { color: #1a1a1a !important; background: var(--isu-gold) !important; }