/* Modern Dark Theme Variables */
:root {
  /* Core background colors */
  --bs-dark: #0a0a0b;
  --bs-dark-rgb: 10, 10, 11;
  --bs-body-bg: #0a0a0b;
  --bs-body-color: #e4e4e7;

  /* Modern accent colors */
  --bs-primary: #059669;
  --bs-primary-rgb: 5, 150, 105;
  --bs-secondary: #3f3f46;
  --bs-success: #34d399;
  --bs-info: #38bdf8;
  --bs-warning: #fbbf24;
  --bs-danger: #f87171;
  --bs-light: #fafafa;

  /* Surface colors with depth */
  --bs-dark-surface: #18181b;
  --bs-dark-surface-variant: #27272a;
  --bs-dark-surface-elevated: #1f1f23;
  --bs-border-color: #27272a;
  --bs-border-color-subtle: #3f3f46;

  /* Text colors */
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  /* Accent color */
  --accent-green: #059669;
  --gradient-surface: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0) 100%);
}

html {
  font-size: 15px;
  height: 100%;
  scroll-behavior: smooth;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  background-color: var(--bs-dark);
  color: var(--bs-body-color);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  height: 100%;
  display: flex;
  flex-direction: column;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.navbar {
  background-color: rgba(24, 24, 27, 0.8) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bs-border-color);
  padding: 1rem 0;
}

.navbar .container {
  max-width: 1200px;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--accent-green);
  letter-spacing: -0.02em;
}

.navbar-brand:hover {
  opacity: 0.9;
}

.navbar-nav .nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 1rem !important;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.navbar-nav .nav-link:hover {
  color: var(--text-primary) !important;
  background-color: rgba(255, 255, 255, 0.05);
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  border-radius: 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28228, 228, 231, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Cards */
.card {
  background: var(--bs-dark-surface);
  background-image: var(--gradient-surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2),
              0 2px 4px -2px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}


.card-body {
  padding: 1.5rem;
}

.card-title {
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.card-title a {
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.card-title a:hover {
  color: var(--bs-primary);
  text-decoration: none;
}

.card-header {
  background-color: transparent;
  border-bottom: 1px solid var(--bs-border-color);
  padding: 1.25rem 1.5rem;
}

.card-header h5 {
  margin: 0;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-footer {
  background-color: transparent;
  border-top: 1px solid var(--bs-border-color);
  padding: 1rem 1.5rem;
}

/* Links */
a {
  color: var(--bs-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #10b981;
  text-decoration: none;
}

/* Buttons */
.btn {
  font-weight: 500;
  border-radius: 0.5rem;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background: var(--accent-green);
  border: none;
  color: #fff;
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.4);
  background: #047857;
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline-primary {
  color: var(--bs-primary);
  border: 1px solid var(--bs-primary);
  background: transparent;
}

.btn-outline-primary:hover {
  background: rgba(5, 150, 105, 0.1);
  border-color: var(--bs-primary);
  color: #10b981;
}

.btn-secondary {
  background-color: var(--bs-dark-surface-variant);
  border: 1px solid var(--bs-border-color-subtle);
  color: var(--text-secondary);
}

.btn-secondary:hover {
  background-color: var(--bs-secondary);
  border-color: var(--bs-secondary);
  color: var(--text-primary);
}

.btn-outline-secondary {
  color: var(--text-secondary);
  border: 1px solid var(--bs-border-color-subtle);
  background: transparent;
}

.btn-outline-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.375rem 1rem;
  font-size: 0.8125rem;
}

/* Forms */
.form-control {
  background-color: var(--bs-dark-surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
  color: var(--bs-body-color);
  padding: 0.625rem 0.875rem;
  transition: all 0.2s ease;
}

.form-control:focus {
  background-color: var(--bs-dark-surface-elevated);
  border-color: var(--bs-primary);
  color: var(--bs-body-color);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-select {
  background-color: var(--bs-dark-surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
  color: var(--bs-body-color);
  padding: 0.625rem 0.875rem;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23a1a1aa' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
  transition: all 0.2s ease;
}

.form-select:focus {
  background-color: var(--bs-dark-surface-elevated);
  border-color: var(--bs-primary);
  color: var(--bs-body-color);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

.form-control[readonly] {
  background-color: var(--bs-dark-surface-variant);
  color: var(--text-secondary);
}

.form-label {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Tables */
.table {
  color: var(--bs-body-color);
  border-radius: 0.75rem;
  overflow: hidden;
}

.table-striped>tbody>tr:nth-of-type(odd)>td,
.table-striped>tbody>tr:nth-of-type(odd)>th {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--bs-body-color);
}

.table th {
  border-color: var(--bs-border-color);
  background-color: var(--bs-dark-surface-variant);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.table td {
  border-color: var(--bs-border-color);
  vertical-align: middle;
}

/* Alerts */
.alert {
  border-radius: 0.75rem;
  border: none;
  padding: 1.25rem 1.5rem;
}

.alert-info {
  background-color: rgba(56, 189, 248, 0.1);
  color: #7dd3fc;
}

.alert-warning {
  background-color: rgba(251, 191, 36, 0.1);
  color: #fcd34d;
}

.alert-danger {
  background-color: rgba(248, 113, 113, 0.1);
  color: #fca5a5;
}

.alert h4 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* Badges */
.badge {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.35em 0.75em;
  border-radius: 9999px;
}

.bg-secondary {
  background-color: var(--bs-dark-surface-variant) !important;
  color: var(--text-secondary) !important;
}

.bg-primary {
  background: var(--accent-green) !important;
  color: #fff !important;
}

/* Breadcrumbs */
.breadcrumb {
  background-color: transparent;
  border: none;
  padding: 0;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.breadcrumb-item+.breadcrumb-item::before {
  color: var(--text-muted);
  content: "›";
  font-size: 1.1em;
}

.breadcrumb-item a {
  color: var(--text-secondary);
}

.breadcrumb-item a:hover {
  color: var(--bs-primary);
}

.breadcrumb-item.active {
  color: var(--text-muted);
}

/* List Groups */
.list-group-item {
  background-color: transparent;
  border: none;
  border-bottom: 1px solid var(--bs-border-color);
  color: var(--bs-body-color);
  padding: 0.875rem 0;
  transition: all 0.2s ease;
}

.list-group-item:last-child {
  border-bottom: none;
}

.list-group-item-action:hover {
  background-color: transparent;
  color: var(--bs-primary);
}

.list-group-flush {
  border-radius: 0;
}

/* Jumbotron replacement */
.jumbotron {
  background: var(--accent-green);
  border-radius: 1rem;
  padding: 3rem 2rem;
}

/* Blog content styling */
.blog-content {
  line-height: 1.85;
  font-size: 1.0625rem;
  color: var(--bs-body-color);
}

.blog-content h1,
.blog-content h2,
.blog-content h3,
.blog-content h4,
.blog-content h5,
.blog-content h6 {
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.blog-content h1 {
  font-size: 2rem;
}

.blog-content h2 {
  font-size: 1.5rem;
}

.blog-content h3 {
  font-size: 1.25rem;
}

.blog-content h1:first-child,
.blog-content h2:first-child,
.blog-content h3:first-child {
  margin-top: 0;
}

.blog-content p {
  margin-bottom: 1.25rem;
}

.blog-content pre {
  background-color: #0d1117;
  border: 1px solid var(--bs-border-color);
  border-radius: 0.75rem;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.blog-content code {
  background-color: rgba(5, 150, 105, 0.1);
  color: #6ee7b7;
  padding: 0.2rem 0.5rem;
  border-radius: 0.375rem;
  font-size: 0.875em;
  font-family: "SF Mono", "Fira Code", "Monaco", "Consolas", monospace;
}

.blog-content pre code {
  background-color: transparent;
  color: #e6edf3;
  padding: 0;
}

.blog-content blockquote {
  border-left: 3px solid var(--bs-primary);
  padding: 1rem 0 1rem 1.5rem;
  margin: 1.5rem 0;
  background: rgba(5, 150, 105, 0.05);
  border-radius: 0 0.5rem 0.5rem 0;
}

.blog-content blockquote p {
  margin-bottom: 0;
  color: var(--text-secondary);
  font-style: italic;
}

.blog-content ul,
.blog-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.blog-content li {
  margin-bottom: 0.5rem;
}

/* Blog article preview media (on home page and section lists) */
.card-body img,
.card-body video {
  max-width: 60%;
  height: auto;
  display: block;
  margin: 1rem auto;
  border-radius: 0.75rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Responsive images */
.blog-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  margin: 1.5rem 0;
}

/* Focus styles */
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.2);
  outline: none;
}

/* Pagination */
.pagination {
  gap: 0.25rem;
}

.pagination .page-link {
  background-color: var(--bs-dark-surface);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
  color: var(--text-secondary);
  padding: 0.5rem 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.pagination .page-link:hover {
  background-color: var(--bs-dark-surface-variant);
  border-color: var(--bs-primary);
  color: var(--bs-primary);
}

.pagination .page-item.active .page-link {
  background: var(--accent-green);
  border-color: transparent;
  color: #fff;
}

.pagination .page-item:first-child .page-link,
.pagination .page-item:last-child .page-link {
  border-radius: 0.5rem;
}

/* Main content area - flex grow to push footer down */
main {
  flex: 1;
  padding-top: 1.5rem;
}

/* Container max-width for better readability */
.container {
  max-width: 1200px;
}

/* Footer */
footer {
  background-color: var(--bs-dark-surface);
  border-top: 1px solid var(--bs-border-color);
  color: var(--text-muted);
  margin-top: auto;
}

footer p {
  margin-bottom: 0;
  font-size: 0.875rem;
}

/* Page headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

/* Text utilities */
.text-muted {
  color: var(--text-muted) !important;
}

/* Display headings */
.display-5 {
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

/* Section header with count */
.d-flex.justify-content-between h1 {
  margin-bottom: 0;
}

/* Blog post article styling */
.blog-post header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--bs-border-color);
}

.blog-post .display-5 {
  margin-bottom: 1rem;
}

/* Post footer navigation */
.border-top {
  border-color: var(--bs-border-color) !important;
}

/* Responsive design improvements */
@media (max-width: 768px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .jumbotron {
    padding: 2rem 1.25rem;
  }

  .jumbotron .display-4 {
    font-size: 1.75rem;
  }

  .card-body {
    padding: 1.25rem;
  }

  .card-body img,
  .card-body video {
    max-width: 100%;
  }

  .table-responsive {
    font-size: 0.875rem;
  }

  .btn-sm {
    font-size: 0.8125rem;
    padding: 0.375rem 0.75rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  .display-5 {
    font-size: 1.75rem;
  }

  .blog-content {
    font-size: 1rem;
  }

  .navbar-nav .nav-link {
    padding: 0.75rem 0 !important;
  }
}

/* Smooth transitions for interactive elements */
* {
  transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* But not for all elements by default - reset for performance */
html, body, main, .container, .row, .col-lg-8, .col-lg-4, .col-lg-6, .col-md-6 {
  transition: none;
}

/* Selection color */
::selection {
  background-color: rgba(5, 150, 105, 0.3);
  color: #fff;
}