/* Styling & Variables */
:root {
  --bg-color: #0d0f17;
  --panel-bg: rgba(22, 26, 43, 0.65);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f1f3f9;
  --text-secondary: #94a3b8;
  --accent-primary: #8b5cf6;
  --accent-secondary: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
  --success-color: #10b981;
  --error-color: #ef4444;
  --border-radius: 16px;
  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Theme tokens */
  --stat-card-bg: rgba(255, 255, 255, 0.03);
  --stat-card-hover-bg: rgba(255, 255, 255, 0.05);
  --stat-card-hover-border: rgba(255, 255, 255, 0.15);
  --stat-val-color: #ffffff;
  --warning-color: #f59e0b;
  --input-bg: rgba(255, 255, 255, 0.04);
  --filter-btn-hover-color: #ffffff;
  --filter-btn-hover-bg: rgba(255, 255, 255, 0.05);
  --filter-btn-active-color: #ffffff;
  --filter-btn-active-bg: rgba(139, 92, 246, 0.15);
  --filter-btn-active-border: rgba(139, 92, 246, 0.25);
  --todo-item-bg: rgba(255, 255, 255, 0.02);
  --todo-item-hover-bg: rgba(255, 255, 255, 0.04);
  --todo-item-hover-border: rgba(255, 255, 255, 0.15);
  --badge-bg: rgba(139, 92, 246, 0.15);
  --badge-color: #c084fc;
  --badge-border: rgba(139, 92, 246, 0.25);
  --toast-bg: rgba(22, 26, 43, 0.9);
  --toast-color: #ffffff;
  --theme-btn-hover-bg: rgba(255, 255, 255, 0.08);
}

:root[data-theme="light"] {
  --bg-color: #f8fafc;
  --panel-bg: rgba(255, 255, 255, 0.75);
  --panel-border: rgba(15, 23, 42, 0.06);
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --accent-primary: #7c3aed;
  --accent-secondary: #2563eb;
  --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);
  --success-color: #059669;
  --error-color: #dc2626;
  --shadow-lg: 0 10px 30px -10px rgba(15, 23, 42, 0.15);

  /* Light theme overrides */
  --stat-card-bg: rgba(0, 0, 0, 0.02);
  --stat-card-hover-bg: rgba(0, 0, 0, 0.04);
  --stat-card-hover-border: rgba(0, 0, 0, 0.08);
  --stat-val-color: #0f172a;
  --warning-color: #d97706;
  --input-bg: rgba(0, 0, 0, 0.02);
  --filter-btn-hover-color: #0f172a;
  --filter-btn-hover-bg: rgba(0, 0, 0, 0.04);
  --filter-btn-active-color: #7c3aed;
  --filter-btn-active-bg: rgba(124, 58, 237, 0.08);
  --filter-btn-active-border: rgba(124, 58, 237, 0.15);
  --todo-item-bg: rgba(0, 0, 0, 0.01);
  --todo-item-hover-bg: rgba(0, 0, 0, 0.03);
  --todo-item-hover-border: rgba(0, 0, 0, 0.06);
  --badge-bg: rgba(124, 58, 237, 0.08);
  --badge-color: #7c3aed;
  --badge-border: rgba(124, 58, 237, 0.15);
  --toast-bg: rgba(255, 255, 255, 0.95);
  --toast-color: #0f172a;
  --theme-btn-hover-bg: rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
  padding: 20px;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Background blob decorations */
.background-decor {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
}

.blob-1 {
  top: -10%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: var(--accent-primary);
}

.blob-2 {
  bottom: -10%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: var(--accent-secondary);
}

/* Container */
.app-container {
  width: 100%;
  max-width: 540px;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 28px;
  transition: background 0.4s ease, border 0.4s ease, box-shadow 0.4s ease;
}

/* Header */
.app-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

/* Header Actions Container */
.header-actions {
  position: absolute;
  top: 4px;
  right: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Google Sync Button */
.google-sync-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  background: var(--stat-card-bg);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.google-sync-btn i {
  color: #4285F4;
}

.google-sync-btn:hover {
  background: var(--theme-btn-hover-bg);
  border-color: var(--stat-card-hover-border);
  transform: translateY(-2px);
}

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

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: var(--stat-card-bg);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.theme-toggle-btn:hover {
  background: var(--theme-btn-hover-bg);
  border-color: var(--stat-card-hover-border);
  transform: scale(1.08) rotate(15deg);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

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

.header-main h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  background: var(--badge-bg);
  color: var(--badge-color);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--badge-border);
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

/* Stats */
.stats-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 10px;
}

.stat-card {
  background: var(--stat-card-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--border-radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

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

.stat-val {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--stat-val-color);
}

#completed-count {
  color: var(--success-color);
}

#pending-count {
  color: var(--warning-color);
}

.stat-lbl {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* Input Form */
.todo-input-group {
  display: flex;
  gap: 10px;
}

.todo-input-group input {
  flex: 1;
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  padding: 14px 18px;
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.todo-input-group input:focus {
  outline: none;
  background: var(--stat-card-hover-bg);
  border-color: var(--accent-primary);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.2);
}

.todo-input-group button {
  background: var(--accent-gradient);
  border: none;
  color: #fff;
  font-weight: 600;
  padding: 0 24px;
  border-radius: var(--border-radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
  transition: var(--transition);
}

.todo-input-group button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.45);
  opacity: 0.95;
}

.todo-input-group button:active {
  transform: translateY(0);
}

/* Filters */
.filter-bar {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 16px;
}

.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}

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

.filter-btn.active {
  color: var(--filter-btn-active-color);
  background: var(--filter-btn-active-bg);
  border: 1px solid var(--filter-btn-active-border);
}

/* List Wrapper */
.list-wrapper {
  position: relative;
  min-height: 150px;
}

.todo-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.todo-item {
  background: var(--todo-item-bg);
  border: 1px solid var(--panel-border);
  padding: 16px 20px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
  animation: slideIn 0.3s ease forwards;
}

.todo-item:hover {
  background: var(--todo-item-hover-bg);
  border-color: var(--todo-item-hover-border);
  transform: translateX(4px);
}

.todo-item-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}

/* Checkbox Style */
.checkbox-container {
  display: block;
  position: relative;
  width: 22px;
  height: 22px;
  cursor: pointer;
  user-select: none;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 22px;
  width: 22px;
  background-color: transparent;
  border: 2px solid var(--text-secondary);
  border-radius: 6px;
  transition: var(--transition);
}

.checkbox-container:hover input ~ .checkmark {
  border-color: var(--accent-primary);
}

.checkbox-container input:checked ~ .checkmark {
  background: var(--accent-gradient);
  border-color: transparent;
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
  left: 7px;
  top: 3px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

/* Text styles */
.todo-text {
  font-size: 1rem;
  color: var(--text-primary);
  transition: var(--transition);
  line-height: 1.4;
  word-break: break-word;
}

.todo-item.completed .todo-text {
  color: var(--text-secondary);
  text-decoration: line-through;
  opacity: 0.65;
}

/* Delete Button */
.delete-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.delete-btn:hover {
  color: var(--error-color);
  background: rgba(239, 68, 68, 0.1);
  transform: scale(1.1);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.empty-icon {
  font-size: 3rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.7;
}

.empty-state.hidden {
  display: none;
}

/* Toasts */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
}

.toast {
  background: var(--toast-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--panel-border);
  padding: 14px 20px;
  border-radius: var(--border-radius);
  color: var(--toast-color);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  min-width: 220px;
  animation: slideInToast 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

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

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

/* Keyframes */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Responsiveness */
@media (max-width: 480px) {
  .app-container {
    padding: 24px;
  }
  
  .todo-input-group {
    flex-direction: column;
  }
  
  .todo-input-group button {
    padding: 14px;
    justify-content: center;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* User Profile Header Element */
.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--stat-card-bg);
  border: 1px solid var(--panel-border);
  padding: 6px 14px;
  border-radius: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.user-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.user-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
}

.logout-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
}

.logout-btn:hover {
  color: var(--error-color);
  background: rgba(239, 68, 68, 0.1);
  transform: scale(1.05);
}

.hidden {
  display: none !important;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(13, 15, 23, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 1;
  transition: var(--transition);
}

:root[data-theme="light"] .modal-overlay {
  background: rgba(248, 250, 252, 0.8);
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
  display: none !important;
}

.modal-content {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  width: 90%;
  max-width: 420px;
  padding: 36px 30px;
  box-shadow: var(--shadow-lg);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: modalScaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes modalScaleIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.close-modal-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

:root[data-theme="light"] .close-modal-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

.modal-icon {
  width: 64px;
  height: 64px;
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 1.8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.modal-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.modal-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 30px;
  max-width: 300px;
}

.google-signup-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

:root[data-theme="light"] .google-signup-btn {
  background: #ffffff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.google-signup-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

:root[data-theme="light"] .google-signup-btn:hover {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.google-signup-btn i {
  color: #ea4335;
  font-size: 1.1rem;
}

/* History Feature Styles */
.history-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
}

.history-btn:hover {
  color: var(--accent-primary);
  background: rgba(139, 92, 246, 0.1);
  transform: scale(1.05);
}

.history-modal-content {
  max-width: 520px !important;
  width: 95%;
  align-items: stretch !important;
  text-align: left !important;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 14px;
  margin-bottom: 20px;
  width: 100%;
}

.history-header h2 {
  margin: 0 !important;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.history-body {
  width: 100%;
}

.history-list {
  list-style: none;
  max-height: 350px;
  overflow-y: auto;
  padding-right: 6px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Custom Scrollbar for history list */
.history-list::-webkit-scrollbar {
  width: 6px;
}
.history-list::-webkit-scrollbar-track {
  background: transparent;
}
.history-list::-webkit-scrollbar-thumb {
  background: var(--panel-border);
  border-radius: 10px;
}
.history-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

.history-item {
  display: flex;
  flex-direction: column;
  padding: 14px;
  border-radius: 12px;
  background: var(--todo-item-bg);
  border: 1px solid var(--panel-border);
  transition: var(--transition);
}

.history-item:hover {
  background: var(--todo-item-hover-bg);
  border-color: var(--todo-item-hover-border);
  transform: translateY(-1px);
}

.history-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}

.history-title {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.4;
  word-break: break-word;
}

.history-status {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.status-completed {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success-color);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-pending {
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning-color);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.status-deleted {
  background: rgba(239, 68, 68, 0.12);
  color: var(--error-color);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.history-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-top: 1px dashed var(--panel-border);
  padding-top: 10px;
}

.history-date-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.history-date-item i {
  font-size: 0.7rem;
  opacity: 0.7;
}

.history-date-label {
  font-weight: 500;
}

.history-date-val {
  color: var(--text-primary);
}

.history-empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}

.history-empty-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  opacity: 0.4;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   MULTI-PANE DASHBOARD & TABS STYLES
   ========================================================================== */

/* 1. Container transitions & wideness */
.app-container {
    transition: max-width 0.4s cubic-bezier(0.16, 1, 0.3, 1), background 0.4s ease, border 0.4s ease, box-shadow 0.4s ease !important;
}

.app-container.wide {
    max-width: 950px;
}

/* 2. Pane switching visibility */
.dashboard-pane {
    display: none;
}

.dashboard-pane.active {
    display: block;
    animation: fadeInPane 0.4s ease forwards;
}

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

/* 3. Navigation tabs row */
.dashboard-nav {
    display: flex;
    gap: 8px;
    justify-content: flex-start;
    overflow-x: auto;
    width: 100%;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 16px;
    margin-bottom: 10px;
}

.dashboard-nav::-webkit-scrollbar {
    height: 4px;
}

.dashboard-nav::-webkit-scrollbar-thumb {
    background: var(--panel-border);
    border-radius: 4px;
}

.dash-nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 18px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.dash-nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

[data-theme="light"] .dash-nav-btn:hover {
    background: rgba(0, 0, 0, 0.03);
}

.dash-nav-btn.active {
    color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.12);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

[data-theme="light"] .dash-nav-btn.active {
    background: rgba(124, 58, 237, 0.08);
    border-color: rgba(124, 58, 237, 0.15);
}

/* ==========================================================================
   KANBAN BOARD STYLES
   ========================================================================== */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    width: 100%;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .kanban-board {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.kanban-column {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 16px;
    min-height: 380px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

[data-theme="light"] .kanban-column {
    background: rgba(15, 23, 42, 0.01);
}

.kanban-column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
    border-bottom: 1px dashed var(--panel-border);
    padding-bottom: 10px;
}

.kanban-column-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.kanban-badge {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
}

[data-theme="light"] .kanban-badge {
    background: rgba(0, 0, 0, 0.04);
}

.kanban-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
    overflow-y: auto;
    max-height: 400px;
    padding-right: 2px;
}

/* Custom scrollbar for kanban cards */
.kanban-cards::-webkit-scrollbar {
    width: 4px;
}
.kanban-cards::-webkit-scrollbar-thumb {
    background: var(--panel-border);
    border-radius: 10px;
}

.kanban-card {
    background: var(--todo-item-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 14px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 10px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.kanban-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent-primary);
    opacity: 0.8;
}

#kanban-completed .kanban-card::before {
    background: var(--success-color);
}

.kanban-card:hover {
    background: var(--todo-item-hover-bg);
    border-color: var(--todo-item-hover-border);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .kanban-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.kanban-card-title {
    font-size: 0.92rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.4;
    word-break: break-word;
}

.kanban-card-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.72rem;
    color: var(--text-secondary);
    border-top: 1px dashed var(--panel-border);
    padding-top: 8px;
    margin-top: 4px;
}

.kanban-card-actions .actions-right {
    display: flex;
    gap: 10px;
}

.kanban-card-actions button {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.kanban-card-actions button.toggle-btn:hover {
    color: var(--success-color);
}

.kanban-card-actions button.delete-btn:hover {
    color: var(--error-color);
}

/* ==========================================================================
   PRODUCTIVITY CHARTS / ANALYTICS
   ========================================================================== */
.analytics-dashboard {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 20px;
    width: 100%;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .analytics-dashboard {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.analytics-card {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    justify-content: center;
}

[data-theme="light"] .analytics-card {
    background: rgba(15, 23, 42, 0.01);
}

.chart-card-wide {
    align-items: stretch;
    justify-content: flex-start;
}

.analytics-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    align-self: flex-start;
}

.weekly-bar-chart {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 180px;
    padding: 10px 10px;
    border-bottom: 2px solid var(--panel-border);
    margin-top: 15px;
    gap: 8px;
}

.weekly-bar-chart .chart-bar-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.weekly-bar-chart .chart-bar {
    background: var(--accent-gradient);
    width: 100%;
    max-width: 24px;
    border-radius: 6px 6px 0 0;
    transition: height 0.65s cubic-bezier(0.16, 1, 0.3, 1);
    min-height: 4px;
}

.weekly-bar-chart .chart-bar-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.progress-ring-container {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.progress-ring-container svg {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    stroke: rgba(255, 255, 255, 0.03);
}

[data-theme="light"] .progress-ring-bg {
    stroke: rgba(0, 0, 0, 0.03);
}

.progress-ring-fg {
    stroke: var(--accent-primary);
    stroke-dasharray: 314;
    stroke-dashoffset: 314;
    transition: stroke-dashoffset 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.progress-ring-percent {
    position: absolute;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.analytics-metrics {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 4px;
}

.marker {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 4px;
}

.marker.primary {
    background: var(--accent-primary);
}

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

/* ==========================================================================
   TIMELINE STYLES
   ========================================================================== */
.activity-timeline {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 10px 5px;
    max-height: 420px;
    overflow-y: auto;
    width: 100%;
}

.activity-timeline::-webkit-scrollbar {
    width: 4px;
}

.activity-timeline::-webkit-scrollbar-thumb {
    background: var(--panel-border);
    border-radius: 4px;
}

.timeline-item {
    display: flex;
    gap: 16px;
}

.timeline-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 700;
    width: 70px;
    text-align: right;
    flex-shrink: 0;
    padding-top: 14px;
}

.timeline-content-card {
    background: var(--todo-item-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 14px 18px;
    flex: 1;
    position: relative;
}

.timeline-content-card::before {
    content: '';
    position: absolute;
    top: 16px;
    left: -6px;
    width: 10px;
    height: 10px;
    background: var(--bg-color);
    border-left: 1px solid var(--panel-border);
    border-bottom: 1px solid var(--panel-border);
    transform: rotate(45deg);
    transition: background 0.4s ease, border-color 0.4s ease;
}

.timeline-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ==========================================================================
   BILLING STYLES
   ========================================================================== */
.billing-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    margin-top: 10px;
}

.billing-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .billing-hero {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.current-plan-card {
    background: var(--accent-gradient);
    border-radius: 16px;
    padding: 24px;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    overflow: hidden;
    justify-content: space-between;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
}

.current-plan-card::after {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 160px;
    height: 160px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    filter: blur(35px);
}

.plan-tag {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.2);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.current-plan-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 8px;
}

.plan-desc {
    font-size: 0.8rem;
    opacity: 0.9;
    line-height: 1.4;
}

.plan-price {
    font-size: 2.2rem;
    font-weight: 800;
    margin: 8px 0 2px 0;
}

.plan-price span {
    font-size: 1rem;
    font-weight: 500;
}

.plan-renews {
    font-size: 0.75rem;
    opacity: 0.8;
    font-weight: 600;
}

.payment-method-card {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    justify-content: space-between;
}

[data-theme="light"] .payment-method-card {
    background: rgba(15, 23, 42, 0.01);
}

.payment-method-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.credit-card-preview {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 16px;
    color: #ffffff;
    position: relative;
    height: 110px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
}

.card-chip {
    width: 28px;
    height: 20px;
    background: #fbbf24;
    border-radius: 4px;
}

.card-number {
    font-family: monospace;
    font-size: 0.95rem;
    letter-spacing: 1px;
    margin-top: 8px;
}

.card-holder {
    font-size: 0.7rem;
    text-transform: uppercase;
    opacity: 0.8;
    letter-spacing: 0.5px;
}

.card-expiry {
    position: absolute;
    bottom: 16px;
    right: 16px;
    font-size: 0.75rem;
    opacity: 0.8;
}

.card-brand {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 1.5rem;
}

.upgrade-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

[data-theme="light"] .upgrade-btn {
    background: rgba(0, 0, 0, 0.02);
}

.upgrade-btn:hover {
    background: var(--theme-btn-hover-bg);
    transform: translateY(-1px);
    border-color: var(--accent-primary);
}

.billing-history {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

[data-theme="light"] .billing-history {
    background: rgba(15, 23, 42, 0.01);
}

.billing-history h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.invoice-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.invoice-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    background: var(--todo-item-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
}

.invoice-date {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}

.invoice-num {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 2px;
}

.invoice-amt {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: right;
    display: block;
}

.invoice-status.success {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.12);
    padding: 2px 8px;
    border-radius: 6px;
    border: 1px solid rgba(16, 185, 129, 0.2);
    margin-top: 4px;
    display: inline-block;
}

/* ==========================================================================
   TASK CREATION MODAL STYLES
   ========================================================================== */
.task-modal-content {
    max-width: 480px !important;
    width: 95%;
    align-items: stretch !important;
    text-align: left !important;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input[type="text"],
.form-group input[type="datetime-local"] {
    background: var(--input-bg);
    border: 1px solid var(--panel-border);
    padding: 10px 14px;
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input[type="text"]:focus,
.form-group input[type="datetime-local"]:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.15);
}

.priority-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.priority-pill {
    position: relative;
    cursor: pointer;
    text-align: center;
}

.priority-pill input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.priority-pill span {
    display: block;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    border: 1px solid var(--panel-border);
    background: rgba(255, 255, 255, 0.01);
    transition: var(--transition);
}

/* Priority hover & check styles */
.priority-pill.low:hover span {
    border-color: var(--success-color);
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.05);
}
.priority-pill.low input:checked + span {
    border-color: var(--success-color);
    color: #fff;
    background: var(--success-color);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.25);
}

.priority-pill.medium:hover span {
    border-color: var(--warning-color);
    color: var(--warning-color);
    background: rgba(245, 158, 11, 0.05);
}
.priority-pill.medium input:checked + span {
    border-color: var(--warning-color);
    color: #fff;
    background: var(--warning-color);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.25);
}

.priority-pill.high:hover span {
    border-color: var(--error-color);
    color: var(--error-color);
    background: rgba(239, 68, 68, 0.05);
}
.priority-pill.high input:checked + span {
    border-color: var(--error-color);
    color: #fff;
    background: var(--error-color);
    box-shadow: 0 0 12px rgba(239, 68, 68, 0.25);
}

.checkbox-group {
    margin: 8px 0;
}

.checkbox-label-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 10px;
    border-top: 1px solid var(--panel-border);
    padding-top: 16px;
}

.cancel-btn {
    background: transparent;
    border: 1px solid var(--panel-border);
    color: var(--text-secondary);
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.cancel-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.save-btn {
    background: var(--accent-gradient);
    border: none;
    color: #fff;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.25);
    transition: var(--transition);
}

.save-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(139, 92, 246, 0.35);
}

/* Priority tags on cards & items */
.priority-badge-tag {
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.priority-badge-tag.low {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.priority-badge-tag.medium {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.priority-badge-tag.high {
    background: rgba(239, 68, 68, 0.12);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.todo-item-deadline, .kanban-card-deadline {
    font-size: 0.72rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
}

.todo-item-deadline i, .kanban-card-deadline i {
    font-size: 0.68rem;
    opacity: 0.8;
}