@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap");
@import url("https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css");

body,
.navigation,
.navigation-title,
.navigation-list,
.title,
h1, h2, h3, h4, h5, h6,
a {
  font-family: "Poppins", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.5;
}

.title {
  font-weight: 600;
}

.navigation-title {
  font-weight: 600;
}

.navigation-link {
  font-weight: 600;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
}

p, li {
  font-weight: 400;
}

/* Force header/navigation to use the same font */
.navigation,
.navigation * {
  font-family: "Poppins", "Segoe UI", system-ui, -apple-system, sans-serif !important;
  font-weight: 600;
}

/* Preserve Font Awesome icon fonts */
.fa, .fa-solid {
  font-family: "Font Awesome 6 Free" !important;
  font-weight: 900 !important;
}
.fa-regular {
  font-family: "Font Awesome 6 Free" !important;
  font-weight: 400 !important;
}
.fa-brands, .fab {
  font-family: "Font Awesome 6 Brands" !important;
  font-weight: 400 !important;
}

/* Calm nav hover: keep color, no underline, slight opacity shift */
.navigation a:hover,
.navigation a:focus {
  color: inherit !important;
  text-decoration: none !important;
  opacity: 0.85;
}

/* Ensure avatar renders as a true circle */
.avatar img {
  width: 18rem;
  height: 18rem;
  object-fit: cover;
  border-radius: 50%;
}

@media only screen and (max-width: 768px) {
  .avatar img {
    width: 10rem;
    height: 10rem;
  }
}

/* Software logos: vertical stack, no stretching */
.software-logos {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.software-logos img {
  max-height: 96px;
  width: auto;
  display: block;
}
.software-logos a {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
  max-width: 220px;
  padding: 0;
  border: 0;
  background: transparent;
}
.software-logos span {
  display: block;
  font-size: 1.4rem;
  line-height: 1.4;
  color: inherit;
}
.software-logos strong {
  font-weight: 600;
}

/* Software page: plain text links for descriptions */
.software-logos a {
  color: #212121;
  text-decoration: none;
}
.software-logos a:hover,
.software-logos a:focus {
  color: #212121;
  text-decoration: none;
  opacity: 1;
}

/* Hide About link in the header without removing the page */
.navigation a[href="/about/"],
.navigation a[href="/about"],
.navigation .navigation-link[href="/about/"],
.navigation .navigation-link[href="/about"] {
  display: none !important;
}

/* Notes page styling */
.notes-intro {
  font-size: 1.4rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.note-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.note-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

.note-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  object-position: top;
  border-bottom: 1px solid #e0e0e0;
  background: #f5f5f5;
}

.note-info {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.note-info strong {
  font-size: 1.35rem;
  font-weight: 600;
  color: #212121;
}

.note-info span {
  font-size: 1.15rem;
  color: #666;
  line-height: 1.5;
}

/* Dark mode support for notes */
.colorscheme-dark .notes-intro {
  color: #aaa;
}

.colorscheme-dark .note-card {
  background: #1a1a1a;
  border-color: #333;
}

.colorscheme-dark .note-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.colorscheme-dark .note-card img {
  border-color: #333;
  background: #222;
}

.colorscheme-dark .note-info strong {
  color: #e0e0e0;
}

.colorscheme-dark .note-info span {
  color: #999;
}

/* Responsive adjustments for notes */
@media only screen and (max-width: 600px) {
  .notes-grid {
    grid-template-columns: 1fr;
  }

  .note-card img {
    height: 150px;
  }
}

/* Research page graphical abstracts */
.markdown-body img[alt="Graphical abstract"] {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0 2.5rem 0;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.colorscheme-dark .markdown-body img[alt="Graphical abstract"] {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Enhanced Theme Toggle Button in Navigation */
#dark-mode-toggle {
  /* Override Coder theme's fixed positioning */
  position: static !important;
  bottom: auto !important;
  left: auto !important;
  z-index: auto !important;
  margin: 0 !important;
  font-size: inherit !important;
  line-height: inherit !important;

  cursor: pointer;
  transition: opacity 0.3s ease;
}

#dark-mode-toggle:hover {
  opacity: 0.85;
}

/* Icon color for light mode - moon icon */
.colorscheme-light #dark-mode-toggle i.fa-moon,
#dark-mode-toggle i.fa-moon {
  color: inherit;
}

/* Icon color for dark mode - sun icon with golden color */
.colorscheme-dark #dark-mode-toggle i.fa-sun {
  color: #ffd700;
}

/* Improved contrast for dark mode text */
.colorscheme-dark {
  --text-color: #e0e0e0;
  --background-color: #1a1a1a;
  --link-color: #66b3ff;
}

.colorscheme-dark body {
  color: var(--text-color);
  background-color: var(--background-color);
}

.colorscheme-dark a {
  color: var(--link-color);
}

.colorscheme-dark .software-logos a {
  color: #e0e0e0;
}

.colorscheme-dark .software-logos a:hover,
.colorscheme-dark .software-logos a:focus {
  color: #e0e0e0;
}