/* Custom styles for Learning Journey site */

/* Pastel colors for light and dark backgrounds */
:root {
  --primary-color: #7B9FE0;
  --primary-dark: #5A7BC7;
  --secondary-color: #A78BFA;
  --secondary-dark: #8B5CF6;
  --accent-color: #86EFAC;
  --accent-dark: #4ADE80;
  --text-muted: #94A3B8;
  --text-muted-dark: #64748B;
  --border-color: #E2E8F0;
  --border-color-dark: #334155;
  
  /* Pastel background colors */
  --bg-pastel-blue: #EFF6FF;
  --bg-pastel-purple: #F3E8FF;
  --bg-pastel-green: #F0FDF4;
  --bg-pastel-pink: #FDF2F8;
  --bg-pastel-yellow: #FFFBEB;
  --bg-pastel-gray: #F8FAFC;
  
  /* Dark mode pastel variants */
  --bg-dark-blue: #1E293B;
  --bg-dark-purple: #2D1B69;
  --bg-dark-green: #14532D;
  --bg-dark-pink: #4C1D95;
  --bg-dark-yellow: #451A03;
  --bg-dark-gray: #1F2937;
}

/* Header and navigation styling */
.navbar-brand {
  font-weight: 600;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Make navbar icons white */
.navbar .nav-link i,
.navbar .nav-link .bi {
  color: white !important;
}

.navbar .nav-link[href="index.qmd"] i,
.navbar .nav-link[href="index.qmd"] .bi {
  color: white !important;
}

/* Make navbar text white */
.navbar .nav-link {
  color: white !important;
}

.navbar .navbar-nav .nav-link {
  color: white !important;
}

/* Content styling */
.lead {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Card-like containers for content sections */
.content-card {
  background: linear-gradient(135deg, var(--bg-pastel-blue) 0%, var(--bg-pastel-gray) 100%);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(123, 159, 224, 0.1);
  transition: all 0.3s ease;
}

.content-card:hover {
  box-shadow: 0 4px 16px rgba(123, 159, 224, 0.15);
  transform: translateY(-2px);
}

/* Pastel callout styling enhancements */
.callout {
  border-radius: 12px;
  margin: 1rem 0;
  border-width: 2px;
  box-shadow: 0 3px 12px rgba(123, 159, 224, 0.1);
}

.callout.callout-note {
  background: linear-gradient(135deg, var(--bg-pastel-blue) 0%, var(--bg-pastel-gray) 100%);
  border-color: var(--primary-color);
}

.callout.callout-tip {
  background: linear-gradient(135deg, var(--bg-pastel-green) 0%, var(--bg-pastel-yellow) 100%);
  border-color: var(--accent-color);
}

.callout.callout-warning {
  background: linear-gradient(135deg, var(--bg-pastel-yellow) 0%, var(--bg-pastel-pink) 100%);
  border-color: #FCD34D;
}

.callout.callout-important {
  background: linear-gradient(135deg, var(--bg-pastel-purple) 0%, var(--bg-pastel-blue) 100%);
  border-color: var(--secondary-color);
}

/* Code block improvements */
.sourceCode {
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: linear-gradient(135deg, var(--bg-pastel-gray) 0%, var(--bg-pastel-blue) 100%);
  box-shadow: 0 2px 8px rgba(123, 159, 224, 0.1);
}

/* Link styling */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
  text-decoration-color: var(--secondary-color);
}

/* Table improvements */
.table {
  border-radius: 6px;
  overflow: hidden;
}

/* Figure captions */
.figure-caption {
  font-style: italic;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Responsive improvements */
@media (max-width: 768px) {
  .grid {
    gap: 1rem;
  }
  
  .content-card {
    padding: 1rem;
  }
}

/* Search enhancements */
.aa-Form {
  border-radius: 6px;
}

/* Footer styling */
.page-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  margin-top: 3rem;
  color: var(--text-muted);
}

/* Sidebar improvements */
.sidebar {
  border-right: 1px solid var(--border-color);
}

.sidebar .nav-link {
  border-radius: 4px;
  margin-bottom: 2px;
}

.sidebar .nav-link:hover {
  background-color: #f8f9fa;
}

.sidebar-section {
    padding-left: 1.75em;
}

/* Enhanced sidebar section styling */
.sidebar-section > .nav-link {
  font-weight: 800;
  font-size: 1.1rem;
  color: #374151 !important;
  background: linear-gradient(135deg, var(--bg-pastel-blue) 0%, var(--bg-pastel-purple) 100%);
  border: 2px solid var(--primary-color);
  margin: 0.75rem 0 0.5rem 0;
  padding: 0.8rem 1rem;
  text-transform: uppercase;
  letter-spacing: 0.75px;
  border-radius: 12px;
  transition: all 0.3s ease-in-out;
  text-shadow: 0 1px 2px rgba(123, 159, 224, 0.3);
  box-shadow: 0 3px 8px rgba(123, 159, 224, 0.2);
}

.sidebar-section > .nav-link:hover {
  background: linear-gradient(135deg, var(--bg-pastel-purple) 0%, var(--bg-pastel-pink) 100%);
  transform: translateX(4px) translateY(-1px);
  box-shadow: 0 6px 16px rgba(167, 139, 250, 0.3);
  color: #1F2937 !important;
  border-color: var(--secondary-color);
}

/* Regular nav items under sections */
.sidebar-section .nav-item .nav-link {
  font-weight: 400;
  font-size: 0.95rem;
  color: #4B5563 !important;
  background: transparent;
  border: none;
  margin: 0.15rem 0;
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.sidebar-section .nav-item .nav-link:hover {
  background: linear-gradient(135deg, var(--bg-pastel-blue) 0%, var(--bg-pastel-green) 100%);
  color: var(--primary-dark) !important;
  transform: translateX(6px);
  box-shadow: 0 2px 8px rgba(134, 239, 172, 0.3);
}

/* Active states */
.sidebar-section > .nav-link.active {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  color: white !important;
  box-shadow: 0 6px 16px rgba(167, 139, 250, 0.4);
  border-color: var(--secondary-color);
}

.sidebar-section .nav-item .nav-link.active {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
  color: white !important;
  font-weight: 500;
  box-shadow: 0 3px 8px rgba(134, 239, 172, 0.4);
}

/* Home link special styling */
.sidebar .nav-link[href="index.qmd"] {
  font-weight: 600;
  font-size: 1.1rem;
  color: white !important;
  background: linear-gradient(135deg, var(--bg-pastel-green) 0%, var(--bg-pastel-yellow) 100%);
  border: 2px solid var(--accent-color);
  margin-bottom: 1rem;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  box-shadow: 0 3px 8px rgba(134, 239, 172, 0.2);
  transition: all 0.3s ease;
}

.sidebar .nav-link[href="index.qmd"]:hover {
  background: linear-gradient(135deg, var(--bg-pastel-yellow) 0%, var(--bg-pastel-pink) 100%);
  transform: translateX(3px) translateY(-1px);
  box-shadow: 0 6px 16px rgba(134, 239, 172, 0.3);
  border-color: var(--accent-dark);
}

/* Emoji spacing */
.nav-link .emoji {
  margin-right: 0.5rem;
}

/* Enhanced grid cards with pastel backgrounds */
.grid .g-col-12 {
  padding: 0.75rem;
}

.grid .g-col-12 > div,
.grid .g-col-12 > section {
  background: linear-gradient(135deg, var(--bg-pastel-gray) 0%, var(--bg-pastel-blue) 100%);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  height: 100%;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(123, 159, 224, 0.08);
}

.grid .g-col-12:nth-child(even) > div,
.grid .g-col-12:nth-child(even) > section {
  background: linear-gradient(135deg, var(--bg-pastel-green) 0%, var(--bg-pastel-yellow) 100%);
}

.grid .g-col-12:nth-child(3n) > div,
.grid .g-col-12:nth-child(3n) > section {
  background: linear-gradient(135deg, var(--bg-pastel-purple) 0%, var(--bg-pastel-pink) 100%);
}

.grid .g-col-12 > div:hover,
.grid .g-col-12 > section:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(123, 159, 224, 0.15);
}