/* Notes AI - Styles */

/* ===== CSS Variables ===== */
:root {
  /* Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Brand Colors */
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.1);
  --accent: #8b5cf6;
  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  --error: #ef4444;
  --error-light: rgba(239, 68, 68, 0.1);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 64px;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
  background: var(--border-color);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

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

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
}

.btn-icon {
  padding: var(--spacing-sm);
  min-width: 36px;
  height: 36px;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

.btn-loader {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea,
.select-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
.select-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

.select-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' 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 0.75rem center;
  background-size: 1rem;
  padding-right: 2.5rem;
}

.select-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  padding-right: 2rem;
  font-size: 0.875rem;
}

.form-hint {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-info {
  padding: var(--spacing-md);
  background: var(--primary-light);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--primary);
}

/* ===== Auth Pages ===== */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--spacing-md);
}

.auth-container {
  width: 100%;
  max-width: 400px;
}

.auth-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-header h1 {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.auth-header p {
  color: var(--text-secondary);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-footer {
  text-align: center;
  margin-top: var(--spacing-sm);
}

.form-footer a {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.form-footer a:hover {
  color: var(--primary);
}

.form-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

.auth-success,
.auth-error {
  text-align: center;
  padding: var(--spacing-lg);
}

.success-icon,
.error-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 2rem;
}

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

.error-icon {
  background: var(--error-light);
  color: var(--error);
}

.auth-success h3,
.auth-error h3 {
  margin-bottom: var(--spacing-sm);
}

.auth-success p,
.auth-error p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ===== App Layout ===== */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-close {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: auto;
}

.sidebar-nav {
  flex: 1;
  padding: var(--spacing-md);
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  margin-bottom: var(--spacing-xs);
}

.nav-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-icon {
  font-size: 1.25rem;
}

.sidebar-footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.user-details {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 500;
  font-size: 0.875rem;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

.sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-header {
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
  gap: var(--spacing-md);
  position: sticky;
  top: 0;
  z-index: 50;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--border-color);
}

.theme-icon {
  font-size: 1.25rem;
}

/* ===== Views ===== */
.view {
  flex: 1;
  padding: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hidden {
  display: none !important;
}

/* ===== Editor View ===== */
.editor-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.editor-section {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
}

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

.section-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.section-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.editor-textarea {
  min-height: 150px;
  resize: vertical;
  font-family: inherit;
  line-height: 1.6;
}

.voice-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--error-light);
  border-radius: var(--radius-md);
  color: var(--error);
}

.voice-indicator {
  width: 10px;
  height: 10px;
  background: var(--error);
  border-radius: 50%;
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

.prompt-section label {
  font-weight: 500;
  white-space: nowrap;
}

.output-section {
  border-color: var(--success);
}

.output-content {
  white-space: pre-wrap;
  font-family: inherit;
  line-height: 1.8;
  max-height: 400px;
  overflow-y: auto;
}

.output-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* ===== Notes List ===== */
.notes-header {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.search-bar {
  flex: 1;
  min-width: 200px;
}

.search-input {
  padding-left: var(--spacing-lg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.75rem center;
  background-size: 1rem;
}

.filter-bar {
  display: flex;
  gap: var(--spacing-sm);
}

.notes-list {
  display: grid;
  gap: var(--spacing-md);
}

.note-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.note-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.note-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.note-card-title {
  font-weight: 600;
  font-size: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-card-favorite {
  color: var(--warning);
}

.note-card-preview {
  color: var(--text-secondary);
  font-size: 0.875rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.note-card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.note-card-type {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.notes-pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.pagination-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--primary);
}

.pagination-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.notes-empty {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-secondary);
}

.notes-empty-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
}

.modal-sm {
  max-width: 400px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

/* Note Detail */
.note-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.note-tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.tab-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--primary);
  color: white;
}

.tab-content {
  white-space: pre-wrap;
  line-height: 1.8;
  max-height: 300px;
  overflow-y: auto;
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}

/* ===== Admin Stats ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.stat-icon {
  font-size: 2rem;
}

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

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.stats-section {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
}

.stats-section h3 {
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

.prompt-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.prompt-stat-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
}

.prompt-stat-count {
  background: var(--primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.activity-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 100px;
  padding: var(--spacing-md) 0;
}

.activity-bar {
  flex: 1;
  min-width: 8px;
  background: var(--primary);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: height var(--transition-normal);
}

/* ===== Admin Users ===== */
.users-header {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.users-table-container {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

.users-table {
  width: 100%;
  border-collapse: collapse;
}

.users-table th,
.users-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.users-table th {
  background: var(--bg-tertiary);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

.users-table tr:hover td {
  background: var(--bg-tertiary);
}

.user-cell {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.user-cell-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.75rem;
}

.user-cell-info {
  display: flex;
  flex-direction: column;
}

.user-cell-name {
  font-weight: 500;
}

.user-cell-email {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-admin {
  background: var(--accent);
  color: white;
}

.badge-user {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

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

.badge-inactive {
  background: var(--error-light);
  color: var(--error);
}

.action-btns {
  display: flex;
  gap: var(--spacing-xs);
}

.users-pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

/* ===== Toast Notifications ===== */
.toast-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  transform: translateX(100%);
  opacity: 0;
  transition: all var(--transition-normal);
  max-width: 350px;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

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

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

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

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 100%;
  }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-close {
    display: block;
  }

  .main-content {
    margin-left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .view {
    padding: var(--spacing-md);
  }

  .notes-header {
    flex-direction: column;
  }

  .users-table th:nth-child(4),
  .users-table td:nth-child(4),
  .users-table th:nth-child(5),
  .users-table td:nth-child(5) {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal-content {
    max-height: 100vh;
    border-radius: 0;
  }

  .toast-container {
    left: var(--spacing-md);
    right: var(--spacing-md);
    bottom: var(--spacing-md);
  }

  .toast {
    max-width: none;
  }

  .output-actions {
    flex-direction: column;
  }

  .output-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .auth-card {
    padding: var(--spacing-lg);
  }

  .note-card-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
}

/* ===== Utilities ===== */
.text-center {
  text-align: center;
}

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

.mt-md {
  margin-top: var(--spacing-md);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--border-color) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--spacing-sm);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--spacing-md);
}