*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  /* Theme colors - can be overridden by theme system */
  --primary: #3cff7a;
  --secondary: #444444;
  --background: #222222;
  --surface: #2a2a2a;
  --text: #e0e0e0;
  --border: #444444;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Static design tokens */
  --muted: #aaa;
  --error: #ff3c3c;
  --success: #3cff7a;
  
  /* Computed values */
  --hover: color-mix(in srgb, var(--primary) 85%, white);
  
  /* Layout tokens */
  --radius: 1rem;
  --spacing: 0.5rem;
  --shadow: 0 4px 24px rgba(0,0,0,0.10);
  
  /* Typography tokens */
  --font-size: 1rem;
  --font-bold: 700;
  --font-medium: 500;
  --font-normal: 400;
  --letter-spacing: 0.05em;
  --letter-spacing-wide: 0.1em;
  
  /* Component specific */
  --avatar-size: 100px;
  --navbar-height: 3.5rem;
}

/* Base styles */
body {
  background-color: var(--background);
  color: var(--text);
  font-family: var(--font-family);
  font-size: var(--font-size);
  line-height: 1.5;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-bold);
  margin: 0 0 var(--spacing) 0;
}

p {
  margin: 0 0 var(--spacing) 0;
}

p:last-child {
  margin-bottom: 0;
}

/* Utility classes */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-muted { color: var(--muted); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing); }
.mb-2 { margin-bottom: calc(var(--spacing) * 2); }
.mt-1 { margin-top: var(--spacing); }
.mt-auto { margin-top: auto; }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing); }
.p-2 { padding: calc(var(--spacing) * 2); }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-1 { flex: 1; }
.gap-1 { gap: var(--spacing); }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

/* Components */
.card {
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 0;
  margin: 0;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  min-width: 0;
  container-type: inline-size;
  transition: all 0.2s ease;
  cursor: pointer;
  max-height: calc(100vh - var(--navbar-height) - 4rem);
  overflow: hidden;
  position: relative;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  border-color: var(--primary);
}

.card:hover .card-image {
  transform: scale(1.02);
}

.card:hover .card-title {
  color: var(--primary);
}

/* Adaptive card layout based on available space */
@container (min-width: 400px) {
  .card {
    flex-direction: row;
    align-items: stretch;
  }
  
  .card-image-container {
    flex-shrink: 0;
    width: 200px;
    aspect-ratio: 1;
    margin-right: var(--spacing);
    margin-bottom: 0;
  }
  
  /* When no image, body takes full width */
  .card:not(:has(.card-image-container)) .card-body {
    width: 100%;
  }
}

.card-image-container {
  overflow: hidden;
  border-radius: var(--radius);
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-bottom: var(--spacing);
}

.card-image {
  border-radius: var(--radius);
  object-fit: cover;
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.3s ease;
}

.card-body {
  padding: calc(var(--spacing) * 2);
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
}

/* Custom scrollbar for card body */
.card-body::-webkit-scrollbar {
  width: 6px;
}

.card-body::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

.card-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.card-body::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.card-title {
  font-size: var(--font-size);
  font-weight: var(--font-bold);
  letter-spacing: var(--letter-spacing);
  margin-bottom: var(--spacing);
  transition: color 0.2s ease;
}

.card-subtitle {
  color: var(--muted);
  font-weight: var(--font-medium);
  letter-spacing: var(--letter-spacing);
  margin-bottom: var(--spacing);
}

.card-text {
  color: var(--text);
  line-height: 1.5;
  flex: 1;
}

.card-content-preview {
  color: var(--text);
  line-height: 1.6;
  margin-bottom: calc(var(--spacing) * 1.5);
  position: relative;
  flex: 1;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing);
  padding-top: calc(var(--spacing) * 0.5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
}

.card-date, .card-author {
  color: var(--muted);
  font-weight: var(--font-medium);
}

.card-author {
  font-style: italic;
}

.card-actions {
  display: flex;
  gap: calc(var(--spacing) * 0.5);
  margin-top: auto;
}

.card-actions .btn {
  flex: 1;
  text-align: center;
  font-size: 0.875rem;
  padding: calc(var(--spacing) * 0.75) var(--spacing);
}
/* Forms */
label {
  display: block;
  margin-bottom: var(--spacing);
  font-weight: var(--font-medium);
  letter-spacing: var(--letter-spacing);
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea {
  width: 100%;
  padding: var(--spacing);
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--secondary);
  color: var(--text);
  font-size: var(--font-size);
  margin-bottom: var(--spacing);
  transition: border-color 0.15s;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.btn {
  background: var(--primary);
  color: #181a1f;
  font-size: var(--font-size);
  padding: var(--spacing);
  margin: var(--spacing);
  font-weight: var(--font-bold);
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-block;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--hover);
}

.btn-primary {
  background: var(--primary);
  color: #181a1f;
}

.btn-primary:hover {
  background: var(--hover);
}

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

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

/* Navigation */
.navbar {
  background: var(--surface);
  border-bottom: 1.5px solid var(--border);
  box-shadow: var(--shadow);
  padding: var(--spacing);
  position: sticky;
  top: 0;
  z-index: 1030;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  color: var(--primary);
  font-weight: var(--font-bold);
  letter-spacing: var(--letter-spacing);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing);
}

.navmenu-list {
  display: flex;
  align-items: center;
  gap: var(--spacing);
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Tabs */
.tab-header {
  display: flex;
  gap: var(--spacing);
  justify-content: center;
  margin-bottom: var(--spacing);
}



/* Simple Markdown Editor */
.markdown-editor {
  width: 100%;
}

.markdown-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: calc(var(--spacing) / 2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
}

.md-btn {
  padding: 8px 12px;
  background: var(--secondary);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) / 2);
  cursor: pointer;
  font-weight: bold;
  transition: all 0.2s;
}

.md-btn:hover {
  background: var(--primary);
  color: var(--background);
  transform: translateY(-1px);
}

.markdown-toolbar .separator {
  margin: 0 4px;
  color: var(--muted);
  align-self: center;
}

#recordContent {
  border-radius: 0 0 var(--radius) var(--radius);
  border-top: none;
}

/* Alerts */
.alert {
  padding: var(--spacing);
  margin-bottom: var(--spacing);
  border-radius: var(--radius);
  border: 1.5px solid;
}

.alert-success {
  background-color: var(--success);
  color: #181a1f;
  border-color: var(--success);
}

.alert-danger {
  background-color: var(--error);
  color: #fff;
  border-color: var(--error);
}

/* Layout */
.main-content {
  flex: 1;
  padding-top: var(--spacing);
}

.footer {
  margin-top: auto;
  padding: calc(var(--spacing) * 3) 0;
  text-align: center;
  background: var(--surface);
  border-top: 1.5px solid var(--border);
}

/* Grid system */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  grid-auto-rows: minmax(250px, max-content);
  grid-auto-flow: dense;
  gap: calc(var(--spacing) * 3);
  padding: calc(var(--spacing) * 2);
  align-items: start;
  width: 100%;
}

/* Avatar */
.avatar-preview,
.avatar-placeholder {
  width: var(--avatar-size);
  height: var(--avatar-size);
  border-radius: var(--radius);
}

.avatar-preview {
  object-fit: cover;
}

.avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--muted);
}

/* Images */
.image-preview,
.record-image {
  max-width: 100%;
  height: auto;
  margin: var(--spacing) 0;
  border-radius: var(--radius);
}

.image-preview {
  border: 1.5px solid var(--border);
}

.record-image {
  box-shadow: var(--shadow);
  max-height: 50vh;
  object-fit: contain;
}

/* Forms */
.form-row {
  display: flex;
  gap: var(--spacing);
  align-items: flex-start;
}

.form-row > * {
  flex: 1;
}

.form-hint {
  display: block;
  margin-top: var(--spacing);
  color: var(--muted);
  font-size: 0.875rem;
}

/* Box component */
.box {
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: var(--spacing);
  margin-bottom: var(--spacing);
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing);
}

.table th {
  text-align: left;
  padding: var(--spacing);
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.table td {
  padding: var(--spacing);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.page-title {
  text-align: center;
  margin-bottom: 2rem;
}

/* Badge */
.badge {
  background: var(--primary);
  color: #181a1f;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  display: inline-block;
}

.badge-success {
  background: var(--success);
  color: var(--background);
}

.badge-primary {
  background: var(--primary);
  color: var(--background);
}

.badge-secondary {
  background: var(--muted);
  color: var(--background);
}

/* Categories and Tags */
.card-categories {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.category-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.category-badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Category color palette */
.category-badge:nth-child(1) { background: #ff6b6b; color: white; }
.category-badge:nth-child(2) { background: #4ecdc4; color: white; }
.category-badge:nth-child(3) { background: #45b7d1; color: white; }
.category-badge:nth-child(4) { background: #f9ca24; color: #181a1f; }
.category-badge:nth-child(5) { background: #6c5ce7; color: white; }
.category-badge:nth-child(6) { background: #a29bfe; color: white; }

.card-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.75rem;
  flex-wrap: wrap;
}

.tag-chip {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.2rem 0.6rem;
  border-radius: 0.75rem;
  font-size: 0.7rem;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tag-chip:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--primary);
  color: var(--primary);
}

.more-indicator {
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.3);
  color: var(--muted);
  font-weight: 500;
}

/* Filter Panel */
.filters-panel {
  background: var(--surface);
  border-radius: var(--radius);
  padding: var(--spacing);
  margin-bottom: calc(var(--spacing) * 2);
  box-shadow: var(--shadow);
}

.filters-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing);
}

.filters-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0;
}

.filters-content {
  display: flex;
  gap: calc(var(--spacing) * 2);
  align-items: flex-start;
}

.filter-section {
  display: flex;
  align-items: center;
  gap: var(--spacing);
  flex: 1;
}

.filter-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin: 0;
  flex-shrink: 0;
}

.filter-categories {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-category {
  padding: 0.3rem 0.6rem;
  border-radius: 1rem;
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1.5px solid transparent;
  position: relative;
}

.filter-category:hover {
  transform: translateY(-1px);
}

.filter-category.active {
  border-color: currentColor;
}

.filter-category .count {
  font-size: 0.65rem;
  opacity: 0.7;
  margin-left: 0.2rem;
}

.filter-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.filter-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.2rem 0.5rem;
  border-radius: 0.75rem;
  font-size: 0.65rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-tag:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary);
}

.filter-tag.active {
  background: var(--primary);
  color: #181a1f;
  border-color: var(--primary);
}

.filter-tag .count {
  font-size: 0.6rem;
  opacity: 0.8;
  margin-left: 0.15rem;
}

.clear-filters {
  margin-left: auto;
  padding: 0.2rem 0.6rem !important;
  font-size: 0.7rem !important;
}

.no-results {
  text-align: center;
  padding: calc(var(--spacing) * 4);
  color: var(--muted);
}

/* Mobile filters toggle */
.filters-toggle {
  display: none;
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
  background: var(--primary);
  color: #181a1f;
  padding: 1rem;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  cursor: pointer;
}

@media (max-width: 900px) {
  .filters-content {
    flex-direction: column;
    gap: var(--spacing);
  }
  
  .filter-section {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .filters-panel {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    margin: 0;
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding: calc(var(--spacing) * 2);
  }
  
  .filters-panel.active {
    transform: translateX(0);
  }
  
  .filters-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .filters-content {
    flex-direction: column;
    gap: calc(var(--spacing) * 2);
  }
  
  .filter-section {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Theme components */
.theme-card {
  transition: transform 0.2s;
}

.theme-card:hover {
  transform: translateY(-2px);
}

.theme-card.active-theme {
  border: 2px solid var(--primary);
}

.color-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.color-input-group {
  margin-bottom: 1rem;
}

.color-input-group label {
  margin-bottom: 0.25rem;
}

.color-input-group input[type="color"] {
  width: 50px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  cursor: pointer;
}

.theme-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Notifications */
.notifications-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  max-width: 400px;
  pointer-events: none;
}

.notifications-container .alert {
  pointer-events: auto;
  margin-bottom: 10px;
  animation: slideInRight 0.3s ease-out;
  box-shadow: var(--shadow);
}

.notification-confirm {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.notification-message {
  font-weight: 500;
}

.notification-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Form controls */
.form-control {
  width: 100%;
  padding: var(--spacing);
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--secondary);
  color: var(--text);
  font-size: var(--font-size);
  margin-bottom: var(--spacing);
}

/* Button variants */
.btn-secondary {
  background: var(--secondary);
  color: var(--text);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--secondary) 85%, white);
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-danger:hover {
  background: color-mix(in srgb, var(--error) 85%, black);
}

/* Meta row */
.meta-row {
  display: flex;
  align-items: center;
  gap: var(--spacing);
  justify-content: space-between;
  margin-top: auto;
}

/* Theme grid */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}


/* Additional utility */
.ml-1 {
  margin-left: var(--spacing);
}


/* Responsive grid adjustments */
/* Mobile detection - portrait orientation typically means mobile device */
@media (max-width: 480px), 
       (orientation: portrait) and (max-aspect-ratio: 4/3) {
  .card-grid {
    grid-template-columns: 1fr;
    gap: calc(var(--spacing) * 2);
    padding: var(--spacing);
  }
  
  .card {
    max-height: calc(85vh - var(--navbar-height));
  }
  
  .card:has(.card-image-container) {
    grid-row: span 1;
  }
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  }
}

/* Landscape mode optimizations */
@media (orientation: landscape) and (min-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
  }
  
  .card {
    max-height: calc(90vh - var(--navbar-height));
  }
}

@media (orientation: landscape) and (min-width: 1200px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(600px, 1fr));
  }
}

/* Allow some cards to span multiple rows for variety */
.card:has(.card-image-container) {
  grid-row: span 2;
}

/* Visual indicator for scrollable content */
.card-body.has-overflow::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--surface));
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover .card-body.has-overflow::after {
  opacity: 1;
}

/* Markdown content styling within cards */
.card-content-preview h1,
.card-content-preview h2,
.card-content-preview h3,
.card-content-preview h4,
.card-content-preview h5,
.card-content-preview h6 {
  font-size: 1.1em;
  margin: 0.5em 0;
}

.card-content-preview p {
  margin: 0.75em 0;
}

.card-content-preview ul,
.card-content-preview ol {
  margin: 0.75em 0;
  padding-left: 1.5em;
}

.card-content-preview blockquote {
  margin: 0.75em 0;
  padding-left: 1em;
  border-left: 3px solid var(--primary);
  color: var(--muted);
}

.card-content-preview code {
  background: var(--background);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 0.9em;
}

.card-content-preview pre {
  background: var(--background);
  padding: 1em;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 0.75em 0;
}

.card-content-preview pre code {
  background: none;
  padding: 0;
}

.card-content-preview img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 0.75em 0;
}