/* ==========================================================================
   LEPL1402 - Modern Blue Theme & Responsive Custom Styling
   ========================================================================== */

/* --- 1. Blue Color Palette Variables --- */
:root {
  --pst-color-primary: #1d4ed8;            /* UCLouvain / Tech Royal Blue */
  --pst-color-primary-highlight: #2563eb;
  --pst-color-secondary: #0284c7;          /* Sky / Ocean Accent */
  --pst-color-link: #1d4ed8;
  --pst-color-link-hover: #1e40af;
  --pst-color-target: #eff6ff;
  --pst-color-border: #e2e8f0;
  --pst-color-inline-code: #1e40af;
  --pst-color-pre-background: #f8fafc;
}

html[data-theme="dark"] {
  --pst-color-primary: #60a5fa;
  --pst-color-primary-highlight: #93c5fd;
  --pst-color-secondary: #38bdf8;
  --pst-color-link: #60a5fa;
  --pst-color-link-hover: #93c5fd;
  --pst-color-border: #334155;
  --pst-color-inline-code: #93c5fd;
  --pst-color-pre-background: #0f172a;
}

/* --- 2. Code Block Presentation (Clean slate/blue background, NO green) --- */
div[class*="highlight-"] {
  margin: 1.25rem 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #2563eb !important;
  background-color: #f8fafc !important; /* Pure clean light slate - zero green */
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

html[data-theme="dark"] div[class*="highlight-"] {
  border-color: #334155;
  border-left: 4px solid #3b82f6 !important;
  background-color: #0f172a !important; /* Rich deep navy */
  box-shadow: none;
}

/* Force override of old Pygments/Sphinx #eeffcc green background */
.highlight,
.highlight pre,
pre {
  background-color: #f8fafc !important;
  color: #1e293b !important;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace !important;
  font-size: 0.88rem !important;
  line-height: 1.55 !important;
  padding: 0.85rem 1rem !important;
  margin: 0 !important;
  border: none !important;
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch;
}

html[data-theme="dark"] .highlight,
html[data-theme="dark"] .highlight pre,
html[data-theme="dark"] pre {
  background-color: #0f172a !important;
  color: #f1f5f9 !important;
}

/* Line numbers styling */
td.linenos, span.linenos {
  color: #94a3b8 !important;
  background-color: #f1f5f9 !important;
  border-right: 1px solid #e2e8f0 !important;
  padding-right: 0.6rem !important;
  user-select: none;
}

html[data-theme="dark"] td.linenos,
html[data-theme="dark"] span.linenos {
  color: #64748b !important;
  background-color: #1e293b !important;
  border-right: 1px solid #334155 !important;
}

/* Inline code badges */
code.literal,
code.docutils.literal,
tt.literal,
p code,
li code,
td code {
  background-color: #eff6ff !important; /* Soft ice-blue badge */
  color: #1e40af !important;
  border: 1px solid #dbeafe !important;
  border-radius: 4px;
  padding: 0.15em 0.4em !important;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  font-weight: 500;
}

html[data-theme="dark"] code.literal,
html[data-theme="dark"] code.docutils.literal,
html[data-theme="dark"] tt.literal,
html[data-theme="dark"] p code,
html[data-theme="dark"] li code,
html[data-theme="dark"] td code {
  background-color: #1e293b !important;
  color: #93c5fd !important;
  border-color: #334155 !important;
}

/* --- 3. Responsive Smartphone Enhancements --- */
img {
  max-width: 100% !important;
  height: auto !important;
}

/* Responsive tables with smooth horizontal scroll on touchscreens */
.table-wrapper,
div.wy-table-responsive,
table.docutils {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  border-radius: 6px;
}

table.docutils {
  border-collapse: collapse;
  min-width: 100%;
  border: 1px solid #e2e8f0;
}

html[data-theme="dark"] table.docutils {
  border-color: #334155;
}

table.docutils th {
  background-color: #f1f5f9;
  color: #0f172a;
  font-weight: 600;
  border-bottom: 2px solid #cbd5e1;
  padding: 0.6rem 0.8rem;
}

html[data-theme="dark"] table.docutils th {
  background-color: #1e293b;
  color: #f8fafc;
  border-bottom: 2px solid #475569;
}

table.docutils td {
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid #e2e8f0;
}

html[data-theme="dark"] table.docutils td {
  border-bottom: 1px solid #334155;
}

/* Touch targets and mobile typography */
@media (max-width: 768px) {
  .bd-content {
    padding-left: 0.75rem !important;
    padding-right: 0.75rem !important;
  }

  .bd-header-article {
    padding: 0.5rem 0.75rem;
  }

  div[class*="highlight-"] {
    margin: 1rem -0.5rem;
    border-radius: 4px;
  }

  .highlight pre {
    font-size: 0.8rem !important;
    padding: 0.65rem 0.75rem !important;
  }

  .hero-pdf-banner {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
    padding: 1.25rem 1rem !important;
  }

  .hero-pdf-btn {
    width: 100%;
    justify-content: center;
  }
}

/* --- 4. Sidebar Download Card --- */
.sidebar-pdf-card {
  background: linear-gradient(135deg, #f0f7ff 0%, #e0effe 100%);
  border: 1px solid #bfdbfe !important;
  border-radius: 8px;
  transition: all 0.2s ease;
}

html[data-theme="dark"] .sidebar-pdf-card {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border: 1px solid #3b82f6 !important;
}

.sidebar-pdf-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.15) !important;
}

.download-pdf-btn {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff !important;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  box-shadow: 0 2px 4px rgba(29, 78, 216, 0.25);
  transition: all 0.2s ease;
}

.download-pdf-btn:hover {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
  box-shadow: 0 4px 8px rgba(29, 78, 216, 0.35);
  transform: translateY(-1px);
}

/* --- 5. Homepage Hero PDF Download Banner --- */
.hero-pdf-banner {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #93c5fd;
  border-radius: 12px;
  padding: 1.5rem 1.75rem;
  margin: 1.75rem 0 2rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

html[data-theme="dark"] .hero-pdf-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border-color: #2563eb;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-pdf-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e3a8a;
  margin-bottom: 0.35rem;
}

html[data-theme="dark"] .hero-pdf-title {
  color: #93c5fd;
}

.hero-pdf-desc {
  font-size: 0.95rem;
  color: #334155;
  margin-bottom: 0;
}

html[data-theme="dark"] .hero-pdf-desc {
  color: #cbd5e1;
}

.hero-pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff !important;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border-radius: 8px;
  text-decoration: none !important;
  box-shadow: 0 4px 10px rgba(29, 78, 216, 0.3);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.hero-pdf-btn:hover {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
  box-shadow: 0 6px 14px rgba(29, 78, 216, 0.4);
  transform: translateY(-2px);
  color: #ffffff !important;
}

/* --- 6. Quick Access Part Cards on Homepage --- */
.parts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0 2.5rem 0;
}

.part-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-top: 4px solid #2563eb;
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  text-decoration: none !important;
  color: inherit !important;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
}

html[data-theme="dark"] .part-card {
  background: #1e293b;
  border-color: #334155;
  border-top-color: #60a5fa;
  box-shadow: none;
}

.part-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.12);
  border-color: #93c5fd;
}

html[data-theme="dark"] .part-card:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  border-color: #60a5fa;
}

.part-card-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #2563eb;
  margin-bottom: 0.4rem;
}

html[data-theme="dark"] .part-card-badge {
  color: #93c5fd;
}

.part-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 0.5rem;
}

html[data-theme="dark"] .part-card-title {
  color: #f8fafc;
}

.part-card-desc {
  font-size: 0.9rem;
  color: #64748b;
  margin-bottom: 0;
  line-height: 1.45;
}

html[data-theme="dark"] .part-card-desc {
  color: #94a3b8;
}

/* --- 7. Modern Admonition Enhancements --- */
div.admonition {
  border-radius: 8px !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

div.admonition.note {
  border-left-color: #2563eb !important;
}

html[data-theme="dark"] div.admonition.note {
  border-left-color: #60a5fa !important;
}