/* ==========================================================================
   PromptStash CSS Design System
   Sleek Glassmorphic Dark/Light Mode Theme, Micro-animations & Flex Layouts
   ========================================================================== */

/* Imports */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700&display=swap');

/* CSS Variables */
:root {
  /* Fonts */
  --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, "Liberation Mono", Menlo, Courier, monospace;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  /* Border Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.2);
}

/* Theme 1: Dark Theme (Default) */
[data-theme="dark"] {
  --bg-app: radial-gradient(circle at top left, #1E1B4B, #0F0E17);
  --bg-sidebar: rgba(15, 14, 23, 0.7);
  --bg-card: rgba(30, 27, 75, 0.4);
  --bg-card-hover: rgba(49, 46, 129, 0.6);
  --bg-input: rgba(15, 14, 23, 0.8);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(129, 140, 248, 0.5);
  
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  
  --accent-color: #818CF8;
  --accent-gradient: linear-gradient(135deg, #A5B4FC, #818CF8);
  --accent-glow: rgba(129, 140, 248, 0.3);
  
  --success-color: #34D399;
  --success-glow: rgba(52, 211, 153, 0.2);
  
  --danger-color: #F87171;
  
  --card-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.4);
  --glass-blur: blur(20px);
  
  --badge-bg: rgba(129, 140, 248, 0.15);
  --badge-text: #A5B4FC;
}

/* Theme 2: Light Theme */
[data-theme="light"] {
  --bg-app: radial-gradient(circle at top left, #FFFFFF, #F5F3FF);
  --bg-sidebar: rgba(255, 255, 255, 0.75);
  --bg-card: rgba(255, 255, 255, 0.65);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --bg-input: rgba(255, 255, 255, 0.95);
  --border-color: rgba(99, 102, 241, 0.15);
  --border-focus: rgba(99, 102, 241, 0.5);
  
  --text-primary: #1E1B4B;
  --text-secondary: #4F46E5;
  --text-muted: #64748B;
  
  --accent-color: #6366F1;
  --accent-gradient: linear-gradient(135deg, #818CF8, #6366F1);
  --accent-glow: rgba(99, 102, 241, 0.25);
  
  --success-color: #10B981;
  --success-glow: rgba(16, 185, 129, 0.2);
  
  --danger-color: #EF4444;
  
  --card-shadow: 0 8px 32px 0 rgba(30, 27, 75, 0.05);
  --glass-blur: blur(20px);
  
  --badge-bg: rgba(99, 102, 241, 0.1);
  --badge-text: #4F46E5;
}

/* Global resets & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  background: var(--bg-app);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  transition: background var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  outline: none;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Glassmorphism Styles helper */
.glass {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

/* App Grid Layout */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

/* Mobile Top Bar */
.mobile-top-bar {
  display: none;
}

/* Sidebar Layout */
.sidebar {
  width: 280px;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  z-index: 10;
  border-right: 1px solid var(--border-color);
  background: var(--bg-sidebar);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  padding-left: 0.5rem;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--accent-glow);
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
  font-family: var(--font-display);
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Navigation */
.nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.nav-item button {
  width: 100%;
  background: transparent;
  border: none;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
  text-align: left;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.nav-item button svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.nav-item button:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  padding-left: 1.5rem;
}

.nav-item button:hover svg {
  transform: scale(1.1);
}

.nav-item.active button {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 8px 20px var(--accent-glow);
}

.nav-item.active button svg {
  stroke: #fff;
}

/* Theme Toggle & Bottom Actions in Sidebar */
.sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.theme-toggle-btn {
  width: 100%;
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.theme-toggle-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
}

/* Main Content Area */
.main-content {
  flex-grow: 1;
  height: 100%;
  overflow-y: auto;
  padding: 2rem 3rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Header inside Main Content */
.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.content-title h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.content-title p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Views Wrapper */
.view-panel {
  display: none;
  flex-direction: column;
  gap: 2rem;
  animation: fadeIn var(--transition-normal) forwards;
  height: 100%;
}

.view-panel.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Dashboard view */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: 0 12px 30px var(--accent-glow);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--badge-bg);
  color: var(--badge-text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon svg {
  width: 24px;
  height: 24px;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Dashboard Quick List Sections */
.dashboard-sections {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.section-box {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-box-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.view-all-link {
  font-size: 0.85rem;
  color: var(--accent-color);
  font-weight: 500;
  cursor: pointer;
}

.view-all-link:hover {
  text-decoration: underline;
}

/* Mini Cards for Dashboard lists */
.mini-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mini-card {
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.mini-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.mini-card-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.mini-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}

.mini-card-action {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0.25rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.mini-card-action:hover {
  background: var(--badge-bg);
  color: var(--accent-color);
}

/* Popular categories widget in dashboard */
.cat-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cat-pill {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.cat-pill:hover {
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.cat-pill-count {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 0.1rem 0.4rem;
  font-size: 0.75rem;
}

/* Browse View Styles: Search and Filters */
.search-filter-bar {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-box-container {
  position: relative;
  flex-grow: 1;
  min-width: 250px;
}

.search-input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 15px var(--accent-glow);
  background: var(--bg-input);
}

.search-icon-svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 18px;
  height: 18px;
}

.keyboard-shortcut {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--border-color);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-xs);
  pointer-events: none;
}

.filter-select {
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  cursor: pointer;
  font-weight: 500;
  transition: all var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b5cf6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.75rem;
}

.filter-select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 15px var(--accent-glow);
}

/* Category Slider */
.category-slider {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-top: -0.5rem;
}

.filter-pill {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-color);
}

.filter-pill.active {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px var(--accent-glow);
}

/* Grid layout for prompts */
.prompt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  padding-bottom: 3rem;
}

.prompt-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  min-height: 230px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.prompt-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-focus);
  box-shadow: 0 12px 30px var(--accent-glow);
  background: var(--bg-card-hover);
}

/* Glass card subtle decorative accent light */
.prompt-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.prompt-card:hover::after {
  opacity: 1;
}

.prompt-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.prompt-model-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  background: var(--badge-bg);
  color: var(--badge-text);
  border: 1px solid rgba(139, 92, 246, 0.15);
}

/* Custom badges depending on the target model */
.prompt-model-badge.general {
  background: rgba(129, 140, 248, 0.1);
  color: #818cf8;
  border-color: rgba(129, 140, 248, 0.2);
}
.prompt-model-badge.notebooklm {
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.2);
}

.prompt-card-actions {
  display: flex;
  gap: 0.5rem;
}

.card-action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.35rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-action-btn svg {
  width: 18px;
  height: 18px;
}

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

.card-action-btn.fav-btn.active {
  color: #f43f5e;
}
.card-action-btn.fav-btn.active svg {
  fill: #f43f5e;
  stroke: #f43f5e;
}

.prompt-card-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}

.prompt-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.prompt-card-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.prompt-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: auto;
}

.prompt-card-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  max-width: 70%;
}

.card-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--border-color);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  white-space: nowrap;
}

.prompt-card-copy-stats {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.prompt-card-copy-stats svg {
  width: 14px;
  height: 14px;
}

/* Playgorund / Variable Filler View */
.playground-container {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 2rem;
  height: calc(100vh - 160px);
}

.playground-panel {
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  overflow-y: auto;
}

.playground-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.playground-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.playground-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.playground-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex-grow: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  justify-content: space-between;
}

.form-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Preview Area in Playground */
.preview-pane {
  background: var(--bg-input);
  position: relative;
  display: flex;
  flex-direction: column;
}

.preview-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.preview-bar-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-actions {
  display: flex;
  gap: 0.75rem;
}

.btn {
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

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

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

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

.btn-icon-only {
  padding: 0.65rem;
  aspect-ratio: 1;
}

.preview-body-container {
  flex-grow: 1;
  padding: 1.5rem;
  overflow-y: auto;
  position: relative;
}

.preview-content-rendered {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Variable highlight inside preview */
.var-highlight {
  background: rgba(139, 92, 246, 0.15);
  border-bottom: 2px solid var(--accent-color);
  color: var(--accent-color);
  padding: 0.1rem 0.25rem;
  border-radius: 2px;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.var-highlight.filled {
  background: var(--success-glow);
  border-bottom-color: var(--success-color);
  color: var(--success-color);
}

/* Creator/Editor View */
.editor-container {
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
  padding: 2rem;
}

.editor-header {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.editor-header h2 {
  font-size: 1.75rem;
}

.editor-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.editor-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* Tag Management in Editor */
.tag-input-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  min-height: 50px;
  align-items: center;
}

.editor-tag-pill {
  padding: 0.35rem 0.75rem;
  background: var(--border-color);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
}

.editor-tag-remove {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.editor-tag-remove:hover {
  color: var(--danger-color);
}

.tag-field-input {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  flex-grow: 1;
  min-width: 120px;
  padding: 0.35rem 0.5rem !important;
}

.textarea-toolbar {
  display: flex;
  gap: 0.5rem;
  margin-top: -0.5rem;
  padding: 0.5rem 1rem;
  background: var(--border-color);
  border-bottom-left-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
}

.toolbar-btn {
  background: transparent;
  border: none;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-xs);
}

.toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.editor-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 1rem;
}

/* Settings View Styles */
.settings-container {
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.settings-group {
  padding: 1.75rem;
}

.settings-group-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.settings-group-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.settings-row {
  display: flex;
  gap: 1rem;
}

.btn-danger {
  background: var(--danger-color);
  color: #ffffff;
}

.btn-danger:hover {
  background: #dc2626;
  box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 1000;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  background: rgba(12, 9, 21, 0.9);
  color: #fff;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateY(100px);
  opacity: 0;
  animation: slideIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes slideIn {
  to { transform: translateY(0); opacity: 1; }
}

.toast.success {
  border-left: 4px solid var(--success-color);
}

.toast.info {
  border-left: 4px solid var(--accent-color);
}

.toast.danger {
  border-left: 4px solid var(--danger-color);
}

.toast-icon {
  display: flex;
  align-items: center;
}

.toast-icon.success { color: var(--success-color); }
.toast-icon.info { color: var(--accent-color); }
.toast-icon.danger { color: var(--danger-color); }

/* Empty State component */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  max-width: 450px;
  margin: 4rem auto;
}

.empty-icon {
  width: 64px;
  height: 64px;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.empty-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.empty-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* Modal dialog components */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(5, 4, 7, 0.75);
  backdrop-filter: blur(6px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-container {
  width: 90%;
  max-width: 500px;
  padding: 2rem;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.modal-body {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* Custom Hidden Input for Import File */
.hidden-file-input {
  display: none;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .playground-container {
    grid-template-columns: 1fr;
    height: auto;
    overflow-y: visible;
  }
  .playground-panel {
    overflow-y: visible;
    height: auto;
  }
}

@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
    overflow: hidden;
  }

  /* Fixed Mobile Top Bar */
  .mobile-top-bar {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    z-index: 99;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-sidebar);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
  }

  .mobile-top-bar .brand {
    margin-bottom: 0;
    padding-left: 0;
  }

  .mobile-top-bar .brand-icon {
    width: 32px;
    height: 32px;
    font-size: 1.1rem;
    box-shadow: 0 0 10px var(--accent-glow);
  }

  .mobile-top-bar .brand-name {
    display: none; /* Hide brand name to make space for page title */
  }

  .mobile-active-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
  }

  .mobile-top-bar .theme-toggle-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
  }

  .mobile-top-bar .theme-toggle-btn:active {
    transform: scale(0.9);
  }

  /* View Panels Flex Squash Bug Fix */
  .view-panel {
    height: auto !important;
    min-height: 100%;
    gap: 1.25rem;
    flex-shrink: 0;
  }

  /* Hide Redundant View Header Titles & Subtitles */
  .content-title h1,
  .content-title p {
    display: none !important;
  }

  /* Keep Playground prompt title visible but compact */
  #playground-view .content-title h1 {
    display: flex !important;
    font-size: 1.25rem !important;
    margin-bottom: 0.25rem;
  }

  /* Floating Bottom Navigation Tab Bar */
  .sidebar {
    position: fixed;
    bottom: 16px;
    left: 4%;
    width: 92%;
    height: 64px;
    border-radius: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-sidebar);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    z-index: 999;
    flex-direction: row;
    padding: 0 0.5rem;
    margin: 0;
  }

  /* Hide Brand & Footer in mobile sidebar */
  .sidebar .brand,
  .sidebar .sidebar-footer,
  .sidebar nav h2 {
    display: none !important;
  }

  .sidebar nav {
    width: 100%;
    height: 100%;
  }

  .nav-menu {
    flex-direction: row;
    height: 100%;
    margin: 0;
    padding: 0;
    align-items: center;
    justify-content: space-around;
  }

  .nav-item {
    flex: 1;
    display: flex;
    justify-content: center;
    height: 100%;
    position: relative;
  }

  .nav-item button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    height: 100%;
    padding: 0.5rem 0;
    border-radius: 0;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-muted);
    text-align: center;
    transition: all var(--transition-fast);
  }

  .nav-item button svg {
    width: 20px;
    height: 20px;
    margin: 0;
    stroke: var(--text-muted);
  }

  .nav-item button:hover {
    padding-left: 0;
    background: transparent;
  }

  .nav-item button:hover svg {
    transform: none;
  }

  .nav-item.active button {
    background: transparent;
    color: var(--accent-color);
    box-shadow: none;
    font-weight: 600;
  }

  .nav-item.active button svg {
    stroke: var(--accent-color);
    transform: scale(1.1);
  }

  /* Active Dot Highlight */
  .nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 6px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-color);
  }

  /* Main Scroll Viewport */
  .main-content {
    margin-top: 60px;
    margin-bottom: 0;
    height: calc(100vh - 60px);
    padding: 1.25rem 1rem 100px 1rem;
    overflow-y: auto;
  }

  /* Header adjustments */
  .content-header {
    margin-bottom: 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  /* Compact 2x2 Stats Dashboard Grid */
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.75rem !important;
  }

  .stat-card {
    padding: 1rem !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.5rem !important;
  }

  .stat-icon {
    width: 38px !important;
    height: 38px !important;
    border-radius: var(--radius-sm);
  }

  .stat-icon svg {
    width: 18px !important;
    height: 18px !important;
  }

  .stat-value {
    font-size: 1.35rem !important;
  }

  .dashboard-sections {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-top: 0.5rem;
  }

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

  .prompt-card {
    min-height: auto;
    padding: 1.25rem;
  }

  .prompt-card-body h3 {
    font-size: 1.05rem;
  }

  .prompt-card-body p {
    font-size: 0.8rem;
  }

  /* Form and Inputs target sizes to prevent Safari Zoom */
  .form-input, .filter-select, .search-input, .tag-field-input, select, textarea {
    height: 42px;
    font-size: 16px !important; /* Forces Safari to not auto-zoom */
    padding: 0.5rem 0.75rem;
  }

  .form-textarea {
    height: 120px !important;
  }

  /* Inline Search & Target Model Filter Layout */
  .search-filter-bar {
    display: flex !important;
    flex-direction: row !important;
    gap: 0.5rem !important;
    width: 100% !important;
  }

  .search-box-container {
    flex: 2 !important;
    min-width: auto;
  }

  .search-input {
    padding-left: 2.25rem;
  }

  .keyboard-shortcut {
    display: none !important; /* Hide keyboard shortcut hints on mobile */
  }

  .filter-select {
    flex: 1 !important;
    padding: 0.5rem 1.75rem 0.5rem 0.5rem !important;
    font-size: 0.8rem !important;
    height: 42px;
    background-position: right 0.5rem center !important;
  }

  /* Hide scrollbar on category slider */
  .category-slider {
    padding-bottom: 0px !important;
    margin-top: -0.25rem;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .category-slider::-webkit-scrollbar {
    display: none;
  }

  .filter-pill {
    padding: 0.45rem 1rem;
    font-size: 0.8rem;
  }

  /* Editor layout */
  .editor-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .editor-container {
    padding: 1.25rem;
  }

  /* Playground Sub-Tab System Styling */
  .playground-tabs-mobile {
    display: flex;
    width: 100%;
    padding: 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
  }
  
  .pg-tab {
    flex: 1;
    padding: 0.6rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-xs);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
  }
  
  .pg-tab.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 12px var(--accent-glow);
  }

  .playground-container {
    display: block;
    height: auto;
    overflow-y: visible;
  }

  .playground-panel {
    display: none; /* Hidden by default on mobile, toggled via JS */
    width: 100%;
    height: auto;
    overflow-y: visible;
    padding: 1.25rem;
  }

  .playground-panel.mobile-active {
    display: flex;
    flex-direction: column;
  }

  .playground-title {
    font-size: 1.1rem;
  }

  .preview-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .preview-actions {
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
  }

  .preview-actions select,
  .preview-actions input {
    flex: 1;
    max-width: 110px;
    height: 38px;
    font-size: 0.8rem;
  }

  .preview-actions button {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
    height: 38px;
  }
  
  .pg-mobile-next-btn {
    display: block;
    width: 100%;
    margin-top: 1.5rem;
    padding: 0.85rem;
    font-weight: 600;
    text-align: center;
    border: none;
  }
}

/* ==========================================================================
   Design Gallery & Image Upload Enhancement Styles
   ========================================================================== */
.design-card {
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal) !important;
}

.design-card:hover {
  transform: translateY(-6px) !important;
  border-color: var(--border-focus) !important;
  box-shadow: 0 15px 35px var(--accent-glow) !important;
}

.design-card-image img {
  transition: transform var(--transition-slow) !important;
}

.design-card:hover .design-card-image img {
  transform: scale(1.05) !important;
}

.image-upload-wrapper {
  transition: border-color var(--transition-normal), background-color var(--transition-normal) !important;
}

.image-upload-wrapper:hover {
  border-color: var(--accent-color) !important;
  background: rgba(255, 255, 255, 0.04) !important;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spin-icon {
  animation: spin 1s linear infinite;
  display: inline-block;
  vertical-align: middle;
}