/* ---------- Base Layout ---------- */

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  background-color: #ffffff;
  color: #1f2933;
  line-height: 1.65;
  margin: 0;
  padding: 0;
}

.jp-Notebook,
.notebook-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem 2rem;
  background: #ffffff;
}

/* ---------- Headings ---------- */

h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.6rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

h3::before {
  content: "";
  display: block;
  height: 3px;
  background: #1f2933;
  width: 60px;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
  font-weight: 600;
}

/* ---------- Executive Summary ---------- */

em {
  display: block;
  font-style: normal;
  font-size: 1.05rem;
  background: #f1f5f9;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid #111827;
  border-radius: 6px;
  margin-bottom: 2.5rem;
  color: #334155;
}

/* ---------- Case Study Link/Button ---------- */

.analysis-link {
  margin-top: 18px;
  margin-bottom: 6px;
  text-align: center;
}
.analysis-button {
  display: inline-block;
  padding: 8px 18px;
  border: 1.5px solid #222;
  border-radius: 999px;
  font-size: 0.9rem;
  letter-spacing: 0.3px;
  text-decoration: none;
  color: #222 !important;
  background-color: transparent;
  transition: all 0.2s ease-in-out;
}
.analysis-button .arrow {
  margin-left: 6px;
  transition: transform 0.2s ease-in-out;
}
.analysis-button:hover {
  background-color: #222;
  color: #fff !important;
  text-decoration: none !important;
}
.analysis-button:hover .arrow {
  transform: translateX(4px);
}

/* ---------- Footnote ---------- */

.footnote-ref {
  font-size: 0.75em;
  vertical-align: super;
  color: #4e79a7;
  cursor: pointer;
}
.footnotes {
  font-size: 0.95em;
  color: #555;
  border-top: 1px solid #eee;
  margin-top: 2em;
  padding-top: 1em;
}
.footnotes ol {
  margin: 0;
  padding-left: 1.2em;
}
.footnotes li {
  margin-bottom: 0.5em;
}
.footnotes a {
  color: #4e79a7;
  text-decoration: underline;
}

/* ---------- Paragraphs ---------- */

p {
  margin-bottom: 1.2rem;
  font-size: 1rem;
}

/* ---------- Lists ---------- */

ul {
  margin: 1rem 0 1.5rem 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

/* ---------- Section Dividers ---------- */

h2::before {
  content: "";
  display: block;
  height: 1px;
  background: #e5e7eb;
  margin-bottom: 1.5rem;
}

/* ---------- Plot Styling ---------- */

img {
  display: block;
  margin: 1.5rem auto 2.5rem auto;
  max-width: 100%;
  border-radius: 8px;
}

.output_png {
  display: flex;
  justify-content: center;
}

/* ---------- Code Blocks ---------- */

/* pre {
  background: #111827;
  color: #f9fafb;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
}

code {
  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
} */

/* ---------- Subtle Figure Caption Style ---------- */

.caption {
  font-size: 0.85rem;
  color: #6b7280;
  text-align: center;
  margin-top: -1.5rem;
  margin-bottom: 2rem;
}

/* ---------- Footer Feel ---------- */

hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 3rem 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
  .jp-Notebook,
  .notebook-container {
    padding: 2rem 1.25rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.4rem;
  }
}

/* Footer styles */
.site-footer {
  margin-top: 2em;
  padding: 1em 0;
  background: #f8f9fa;
  border-top: 2px solid #e5e5e5;
  text-align: center;
  font-size: 1em;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1.5em;
}

.site-footer .footer-tagline {
  width: 100%;
  text-align: center;
  font-size: 1.05em;
  color: #444;
  margin-bottom: 0.4em;
  margin-top: 0.2em;
  font-style: italic;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: none;
  line-height: 1.4;
}

.site-footer .footer-owner {
  color: #888;
  font-weight: normal;
  font-size: 1em;
  letter-spacing: 0.01em;
}

.site-footer .footer-author {
  font-weight: 600;
  color: #888;
  margin-left: 0.2em;
}

.site-footer .footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2em;
  align-items: center;
  justify-content: center;
}

.site-footer .footer-icon {
  margin-right: 0.3em;
  vertical-align: middle;
}

.site-footer .portfolio-link {
  color: #333 !important;
  text-decoration: none;
  transition: color 0.2s;
}

.site-footer .linkedin-link {
  color: #0077b5;
  text-decoration: none;
  transition: color 0.2s;
}

.site-footer .github-link {
  color: #333 !important;
  text-decoration: none;
  transition: color 0.2s;
}

.site-footer .footer-links a:hover,
.site-footer .footer-links a:focus {
  color: #0085a1 !important;
  text-decoration: underline;
}

@media (max-width: 600px) {
  .site-footer {
    flex-direction: column;
    gap: 0.8em;
    font-size: 0.97em;
    padding: 1.5em 0.5em;
  }
  .site-footer .footer-tagline {
    font-size: 0.98em;
    margin-bottom: 0.4em;
    color: #555;
  }
  .site-footer .footer-links {
    flex-direction: column;
    gap: 0.5em;
  }
}