/* ==========================================================================
   CSS VARIABLES & DESIGN SYSTEM
   ========================================================================== */
:root {
  /* Color Palette (Dark Theme Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.25);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --border-light: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-focus: rgba(99, 102, 241, 0.4);
  
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-glow: rgba(239, 68, 68, 0.2);
  
  --success: #10b981;
  --success-hover: #059669;

  --warning: #f59e0b;
  
  /* Layout & Animations */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
  
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ==========================================================================
   RESET & SYSTEM STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Hide helper for screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

/* ==========================================================================
   BUTTONS & FORM CONTROLS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-primary:active {
  transform: translateY(1px);
}

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

.btn-secondary:hover {
  background-color: #2d3748;
  color: #fff;
}

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

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

.btn-danger {
  background-color: var(--danger);
  color: #fff;
  box-shadow: 0 4px 12px var(--danger-glow);
}

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

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

.btn-danger-outline:hover {
  background-color: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.4);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-sm {
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: color var(--transition-fast);
  text-decoration: underline;
  text-underline-offset: 4px;
}

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

/* Form Groups */
.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="password"],
input[type="date"],
textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  outline: none;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="date"]:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background-color: var(--bg-primary);
}

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

.form-row-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-row-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   AUTH SCREEN (GLASSMORPHISM PANEL)
   ========================================================================== */
.auth-wrapper {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(circle at top left, #1e1b4b 0%, #030712 55%);
  z-index: 1000;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: rgba(17, 24, 39, 0.65);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-glass);
  text-align: center;
  animation: authCardEnter 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes authCardEnter {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.auth-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background-color: var(--primary-glow);
  color: var(--primary);
  margin-bottom: 24px;
  border: 1px solid var(--border-focus);
}

.icon-lock {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.auth-card h1 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.auth-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 32px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.auth-error-msg {
  background-color: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.2);
  padding: 12px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  margin-bottom: 8px;
  text-align: left;
}

.auth-footer {
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
}

.crypto-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

/* ==========================================================================
   APP SHELL LAYOUT
   ========================================================================== */
.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px 40px;
  background-color: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background-color: var(--primary-glow);
  color: var(--primary);
  border-radius: var(--radius-md);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.header-brand h1 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Search bar */
.header-search {
  position: relative;
  max-width: 280px;
  justify-self: center;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.header-search input {
  width: 100%;
  padding-left: 44px;
  padding-right: 40px;
  height: 42px;
  border-radius: var(--radius-full);
}

.clear-btn {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
}

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

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

@media (max-width: 950px) {
  .app-header {
    grid-template-columns: 1fr auto;
    gap: 16px;
    padding: 16px 20px;
  }
  
  .header-search {
    grid-column: 1 / -1;
    max-width: 100%;
    order: 3;
  }
}

@media (max-width: 600px) {
  .header-actions span {
    display: none;
  }
  .header-actions button {
    padding: 10px;
  }
  .header-brand h1 {
    font-size: 1.1rem;
  }
}

/* Main Area */
.app-main {
  flex: 1;
  padding: 40px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

@media (max-width: 600px) {
  .app-main {
    padding: 20px;
  }
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  max-width: 450px;
  margin: 80px auto;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-lg);
}

.empty-icon-wrapper {
  color: var(--text-muted);
  margin-bottom: 20px;
}

.empty-state h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

/* ==========================================================================
   DAILY GROUPS & NOTE CARDS
   ========================================================================== */
.day-groups-container {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.day-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.day-header {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.day-header-badge {
  font-size: 0.8rem;
  font-weight: 500;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

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

/* Note Card Base */
.note-card {
  --hsl-values: 220, 15%, 16%;
  --border-values: 220, 20%, 30%;
  
  background-color: hsl(var(--hsl-values));
  border: 1px solid hsla(var(--border-values), 0.5);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  min-height: 200px;
}

.note-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: hsla(var(--border-values), 0.9);
}

/* Note Pin Button & Icon */
.pin-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
}

.note-card:hover .pin-btn,
.pin-btn.pinned {
  opacity: 1;
}

.pin-btn:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.pin-btn.pinned {
  color: var(--warning);
}

/* Card Header */
.note-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  padding-right: 28px;
  line-height: 1.3;
  word-break: break-word;
}

/* Card Body Content */
.note-card-body {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Card Checklist (Interactive Tasks) */
.note-card-checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.note-card-check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  line-height: 1.4;
  cursor: pointer;
  user-select: none;
}

.note-card-check-item input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--primary);
  cursor: pointer;
}

.note-card-check-item span {
  transition: color var(--transition-fast), text-decoration var(--transition-fast);
}

.note-card-check-item.completed span {
  color: var(--text-muted);
  text-decoration: line-through;
}

/* Card Footer Actions */
.note-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.note-card:hover .note-card-footer {
  opacity: 1;
}

.card-action-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.card-action-btn:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.card-action-btn.btn-delete:hover {
  background-color: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
}

/* Color Overrides for Cards */
.note-card.color-red {
  --hsl-values: 0, 45%, 25%;
  --border-values: 0, 50%, 45%;
}
.note-card.color-orange {
  --hsl-values: 25, 45%, 25%;
  --border-values: 25, 50%, 45%;
}
.note-card.color-yellow {
  --hsl-values: 45, 45%, 22%;
  --border-values: 45, 50%, 42%;
}
.note-card.color-green {
  --hsl-values: 130, 35%, 22%;
  --border-values: 130, 40%, 40%;
}
.note-card.color-teal {
  --hsl-values: 180, 40%, 22%;
  --border-values: 180, 45%, 40%;
}
.note-card.color-blue {
  --hsl-values: 200, 45%, 25%;
  --border-values: 200, 50%, 45%;
}
.note-card.color-purple {
  --hsl-values: 270, 40%, 26%;
  --border-values: 270, 45%, 46%;
}
.note-card.color-pink {
  --hsl-values: 320, 35%, 25%;
  --border-values: 320, 40%, 45%;
}

/* ==========================================================================
   DIALOGS / MODALS STYLING
   ========================================================================== */
dialog {
  margin: auto;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  max-width: 600px;
  width: calc(100% - 32px);
  max-height: 90vh; /* Prevent overflowing viewport */
  padding: 0;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* Backdrop */
dialog::backdrop {
  background-color: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Animation & Layout */
dialog[open] {
  animation: dialogScaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
}

@keyframes dialogScaleIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.dialog-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
  overflow: hidden; /* Lock content area to prevent dialog stretching */
}

@media (max-width: 600px) {
  .dialog-content {
    padding: 20px;
    gap: 16px;
  }
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 16px;
  flex-shrink: 0;
}

.dialog-header h2 {
  font-size: 1.35rem;
  font-weight: 600;
}

.dialog-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.dialog-close-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.dialog-form {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.dialog-form-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
  overflow-y: auto;
  padding-right: 8px; /* Room for scrollbar */
  margin-bottom: 16px;
}

/* Custom scrollbar for form body */
.dialog-form-body::-webkit-scrollbar {
  width: 6px;
}
.dialog-form-body::-webkit-scrollbar-track {
  background: transparent;
}
.dialog-form-body::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: var(--radius-full);
}

.dialog-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  flex-shrink: 0;
}

/* Reset specific modal styles */
.dialog-actions-vertical {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.dialog-warning-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.warning-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background-color: rgba(239, 68, 68, 0.12);
  color: var(--danger);
  border-radius: 50%;
  margin-bottom: 16px;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Tab toggle */
.tab-toggle {
  display: flex;
  background-color: var(--bg-primary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.tab-btn.active {
  background-color: var(--bg-tertiary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

/* Checklist Builder */
.todo-list-builder {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 240px;
  overflow-y: auto;
  padding-right: 4px;
}

/* Scrollbar styling for checklist builder */
.todo-list-builder::-webkit-scrollbar {
  width: 6px;
}
.todo-list-builder::-webkit-scrollbar-track {
  background: transparent;
}
.todo-list-builder::-webkit-scrollbar-thumb {
  background-color: var(--border-medium);
  border-radius: var(--radius-full);
}

.todo-builder-item {
  display: flex;
  align-items: center;
  gap: 12px;
  animation: itemEnter 0.2s ease-out;
}

@keyframes itemEnter {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

.todo-builder-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.todo-builder-item input[type="text"] {
  flex: 1;
  padding: 8px 12px;
  font-size: 0.9rem;
}

.remove-todo-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.remove-todo-btn:hover {
  background-color: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
}

/* Color Picker */
.color-picker-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.color-option {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  cursor: pointer;
  border-radius: 50%;
}

.color-option input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.color-dot {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: hsl(var(--color-hsl));
  border: 1px solid hsla(var(--color-border), 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.color-option input:checked + .color-dot {
  transform: scale(1.15);
  border-color: #fff;
  box-shadow: 0 0 8px hsla(var(--color-border), 0.8);
}

.color-option input:checked + .color-dot::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #fff;
}

/* Custom Checkbox */
.checkbox-row {
  flex-direction: row;
  align-items: center;
}

.custom-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.custom-checkbox input {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.custom-checkbox input:checked + .checkmark {
  background-color: var(--primary);
  border-color: var(--primary);
}

.custom-checkbox input:checked + .checkmark::after {
  content: "";
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}

/* ==========================================================================
   SWITCH DE VISTAS EN NAVBAR & SECCIÓN DE FRASES
   ========================================================================== */
.nav-switch-container {
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
  margin-right: 8px;
}

.switch-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.switch-label.active {
  color: var(--primary);
  text-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
}

.switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 22px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  transition: var(--transition-fast);
  border-radius: 22px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-muted);
  transition: var(--transition-fast);
  border-radius: 50%;
}

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

input:checked + .slider:before {
  transform: translateX(20px);
  background-color: var(--primary);
}

/* quotes list */
.quotes-list-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
}

.quote-card {
  --hsl-values: 220, 15%, 16%;
  --border-values: 220, 20%, 30%;
  
  background-color: hsl(var(--hsl-values));
  border: 1px solid hsla(var(--border-values), 0.5);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  width: 100%;
  overflow: hidden;
  min-height: 100px;
}

.quote-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: hsla(var(--border-values), 0.9);
}

/* Watermark comillas */
.quote-card::before {
  content: "“";
  position: absolute;
  font-family: Georgia, serif;
  font-size: 8rem;
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
  top: -10px;
  left: 15px;
  pointer-events: none;
  user-select: none;
}

.quote-card-text {
  font-size: 1.2rem;
  font-style: italic;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-primary);
  word-break: break-word;
  position: relative;
  z-index: 1;
}

.quote-card-author {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  align-self: flex-end;
  margin-top: 4px;
  position: relative;
  z-index: 1;
}

.quote-card-author::before {
  content: "— ";
}

.quote-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  opacity: 0;
  transition: opacity var(--transition-fast);
  position: relative;
  z-index: 1;
}

.quote-card:hover .quote-card-footer {
  opacity: 1;
}

/* Color picker overrides for quotes */
.quote-card.color-red {
  --hsl-values: 0, 45%, 25%;
  --border-values: 0, 50%, 45%;
}
.quote-card.color-orange {
  --hsl-values: 25, 45%, 25%;
  --border-values: 25, 50%, 45%;
}
.quote-card.color-yellow {
  --hsl-values: 45, 45%, 22%;
  --border-values: 45, 50%, 42%;
}
.quote-card.color-green {
  --hsl-values: 130, 35%, 22%;
  --border-values: 130, 40%, 40%;
}
.quote-card.color-teal {
  --hsl-values: 180, 40%, 22%;
  --border-values: 180, 45%, 40%;
}
.quote-card.color-blue {
  --hsl-values: 200, 45%, 25%;
  --border-values: 200, 50%, 45%;
}
.quote-card.color-purple {
  --hsl-values: 270, 40%, 26%;
  --border-values: 270, 45%, 46%;
}
.quote-card.color-pink {
  --hsl-values: 320, 35%, 25%;
  --border-values: 320, 40%, 45%;
}