/* ==========================================================================
   NOTEPAD APP & NOTION SYNC — STYLESHEET
   Design System: Modern Glassmorphism, Dark Default, Curated Colors & Micro-Interactions
   ========================================================================== */

:root {
  /* Color Palette (Dark Theme Default) */
  --bg-main: #0a0d14;
  --bg-card: rgba(17, 24, 39, 0.65);
  --bg-card-hover: rgba(31, 41, 55, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.04);
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);

  --accent-primary: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.25);
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --success-color: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.3);

  --danger-color: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --danger-border: rgba(239, 68, 68, 0.3);

  --warning-color: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.45);

  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-main: #f3f4f6;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --bg-glass: rgba(0, 0, 0, 0.03);
  --border-color: rgba(0, 0, 0, 0.08);
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background Glow Effects */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.35) 0%, rgba(139, 92, 246, 0) 70%);
  top: -100px;
  left: -100px;
}

.orb-2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, rgba(59, 130, 246, 0) 70%);
  bottom: -100px;
  right: -100px;
}

.app-container {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Glassmorphism Panel Utility */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* ==========================================================================
   BUTTONS & CONTROLS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #4338ca);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, #3730a3);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger-color);
  border-color: var(--danger-border);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

.btn-full {
  width: 100%;
}

.icon-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}

/* Spinner Loader */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* Form Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
  width: 100%;
  font-family: var(--font-family);
  font-size: 0.95rem;
  padding: 0.7rem 0.9rem;
  background: rgba(0, 0, 0, 0.25);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-wrapper input {
  padding-left: 2.6rem;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.toggle-password {
  position: absolute;
  right: 0.85rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.7;
}

.toggle-password:hover {
  opacity: 1;
}

/* ==========================================================================
   AUTHENTICATION VIEW
   ========================================================================== */

.auth-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 3rem);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: 2.25rem;
  animation: fadeIn 0.4s var(--transition-normal);
}

.brand-header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.brand-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent-primary), #818cf8);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin: 0 auto 1rem auto;
  box-shadow: 0 8px 24px var(--accent-glow);
}

.brand-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.brand-accent {
  background: linear-gradient(135deg, #818cf8, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.auth-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 0.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  background: none;
  border: none;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn.active {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.alert-box {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}

.alert-box.error {
  background: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid var(--danger-border);
}

.alert-box.success {
  background: var(--success-bg);
  color: var(--success-color);
  border: 1px solid var(--success-border);
}

.auth-footer-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
  text-align: center;
}


/* ==========================================================================
   APP HEADER & TOOLBAR
   ========================================================================== */

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary);
}

.header-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.notion-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.notion-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.notion-badge.status-connected {
  background: var(--success-bg);
  color: var(--success-color);
  border-color: var(--success-border);
}
.notion-badge.status-connected .dot {
  background-color: var(--success-color);
  box-shadow: 0 0 8px var(--success-color);
}

.notion-badge.status-error {
  background: var(--danger-bg);
  color: var(--danger-color);
  border-color: var(--danger-border);
}
.notion-badge.status-error .dot {
  background-color: var(--danger-color);
}

.notion-badge.status-checking {
  background: var(--warning-bg);
  color: var(--warning-color);
}
.notion-badge.status-checking .dot {
  background-color: var(--warning-color);
  animation: pulse 1.2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-email {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex: 1;
  min-width: 300px;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.search-box {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.search-box svg {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-box input {
  padding-left: 2.5rem;
  padding-right: 2.2rem;
}

.clear-btn {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
}

.select-wrapper select {
  padding-right: 2rem;
  cursor: pointer;
}


/* ==========================================================================
   NOTES GRID & CARDS
   ========================================================================== */

.notes-container {
  min-height: 400px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.note-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.note-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.note-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.note-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
  word-break: break-word;
}

.sync-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.sync-badge.synced {
  background: var(--success-bg);
  color: var(--success-color);
  border: 1px solid var(--success-border);
}

.sync-badge.failed {
  background: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid var(--danger-border);
}

.note-body-snippet {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.note-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.note-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.card-action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.3rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.9rem;
}

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

.card-action-btn.delete:hover {
  color: var(--danger-color);
  background: var(--danger-bg);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  margin-top: 1rem;
}

.empty-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.empty-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}


/* ==========================================================================
   MODALS (Create/Edit Note, Detail View, Explorer, Patch)
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1.5rem;
  animation: fadeIn 0.25s var(--transition-normal);
}

.modal-card {
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  overflow-y: auto;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.modal-header h2 {
  font-size: 1.4rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

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

.editor-tabs-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.editor-tabs-bar label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.editor-tabs {
  display: flex;
  gap: 0.25rem;
  background: rgba(0, 0, 0, 0.2);
  padding: 3px;
  border-radius: var(--radius-sm);
}

.tab-pill {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.tab-pill.active {
  background: var(--accent-primary);
  color: #fff;
}

.markdown-preview {
  min-height: 180px;
  padding: 0.85rem 1rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  line-height: 1.6;
  overflow-y: auto;
}

.markdown-preview h1 { font-size: 1.4rem; margin-top: 0.5rem; margin-bottom: 0.5rem; }
.markdown-preview h2 { font-size: 1.2rem; margin-top: 0.5rem; margin-bottom: 0.5rem; }
.markdown-preview h3 { font-size: 1.05rem; margin-top: 0.4rem; margin-bottom: 0.4rem; }
.markdown-preview p { margin-bottom: 0.75rem; }
.markdown-preview ul, .markdown-preview ol { padding-left: 1.5rem; margin-bottom: 0.75rem; }
.markdown-preview code { background: rgba(255,255,255,0.1); padding: 0.15rem 0.4rem; border-radius: 4px; font-family: monospace; font-size: 0.88em; }
.markdown-preview pre { background: rgba(0,0,0,0.4); padding: 0.75rem; border-radius: 6px; overflow-x: auto; margin-bottom: 0.75rem; }
.markdown-preview blockquote { border-left: 3px solid var(--accent-primary); padding-left: 0.75rem; color: var(--text-secondary); font-style: italic; margin-bottom: 0.75rem; }

.sync-option-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: .25s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .25s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-primary);
}

input:checked + .slider:before {
  transform: translateX(18px);
}

.toggle-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.detail-footer-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Detail Card & Live Inspector */
.detail-card {
  max-width: 780px;
}

.detail-badge-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.date-badge {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.detail-title {
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
}

.notion-banner {
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.88rem;
}

.notion-banner.synced {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-color);
}

.notion-banner.failed {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-color);
}

.notion-link {
  color: inherit;
  font-weight: 600;
  text-decoration: underline;
}

/* Inspector Panel */
.inspector-panel {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.inspector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.inspector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
  font-size: 0.82rem;
}

.inspector-chip {
  background: var(--bg-card);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.inspector-chip label {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.inspector-chip span {
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
}


/* Notion Workspace Explorer Modal */
.explorer-card {
  max-width: 740px;
}

.explorer-intro {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.explorer-search {
  margin-bottom: 1.25rem;
  gap: 0.5rem;
}

.explorer-results-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 380px;
  overflow-y: auto;
  min-height: 150px;
}

.explorer-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.explorer-item {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition-fast);
}

.explorer-item:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
}

.explorer-item-title {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 3px;
}

.explorer-item-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}


/* Notion Patch Modal */
.patch-card {
  max-width: 580px;
}

.patch-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}


/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 1000;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 300px;
  max-width: 420px;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.88rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

.toast-icon {
  font-size: 1.1rem;
  margin-top: 2px;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 700;
  margin-bottom: 2px;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
}


/* Keyframe Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

/* Responsive adjustments */
@media (max-width: 640px) {
  .app-container {
    padding: 1rem;
  }
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .header-right {
    width: 100%;
    justify-content: space-between;
  }
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .toolbar-left, .toolbar-right {
    flex-direction: column;
    width: 100%;
  }
  .notes-grid {
    grid-template-columns: 1fr;
  }
  .detail-footer-right {
    flex-direction: column;
    width: 100%;
  }
}