/* ============================================
PRODHUB - Productivity Dashboard
Modern CSS with Dark Mode Support
============================================ */
/* CSS Variables for Theming */
:root {
  /* Primary Colors */
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: #dbeafe;
  --primary-dark: #1d4ed8;
  /* Secondary Colors */
  --secondary: #10b981;
  --secondary-hover: #059669;
  --secondary-light: #d1fae5;
  /* Neutral Colors - Light Mode */
  --bg-primary: #ffffff;
  --bg-secondary: #f3f4f6;
  --bg-tertiary: #e5e7eb;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border-color: #e5e7eb;
  /* Semantic Colors */
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --warning: #f59e0b;
  --warning-hover: #d97706;
  --info: #3b82f6;
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  /* 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-2xl: 1.5rem;
  --radius-full: 9999px;
  /* Typography */
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  /* Layout */
  --header-height: 4rem;
  --nav-height: 4rem;
  --max-width: 1200px;
  --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #111827;
  --bg-secondary: #1f2937;
  --bg-tertiary: #374151;
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-tertiary: #9ca3af;
  --border-color: #374151;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4),
    0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4),
    0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5),
    0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color var(--transition-base),
    color var(--transition-base);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

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

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

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

/* Layout Container */
.app-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md);
  padding-bottom: calc(
    var(--nav-height) + var(--spacing-xl) + var(--safe-area-inset-bottom)
  );
  min-height: 100vh;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.025em;
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: var(--shadow-md);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

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

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

.btn-secondary:hover {
  background-color: var(--border-color);
}

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

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

.btn-success {
  background-color: var(--secondary);
  color: white;
}

.btn-success:hover {
  background-color: var(--secondary-hover);
}

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

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

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-full);
}

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

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Theme Toggle */
.theme-toggle {
  position: relative;
  width: 3rem;
  height: 1.75rem;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  border: none;
}

.theme-toggle::after {
  content: "";
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  width: 1.5rem;
  height: 1.5rem;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

[data-theme="dark"] .theme-toggle {
  background-color: var(--primary);
}

[data-theme="dark"] .theme-toggle::after {
  transform: translateX(1.25rem);
}

/* Cards */
.card {
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

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

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* Grid Layout */
.grid {
  display: grid;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.grid-1 {
  grid-template-columns: 1fr;
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Pomodoro Timer Section */
.pomodoro-container {
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  border-radius: var(--radius-2xl);
  padding: var(--spacing-2xl);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.pomodoro-container::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.pomodoro-status {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.timer-display {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.timer-progress {
  width: 100%;
  height: 0.5rem;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-xl);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.timer-progress-bar {
  height: 100%;
  background-color: white;
  border-radius: var(--radius-full);
  transition: width 1s linear;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.timer-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.timer-btn {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  font-size: var(--font-size-xl);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
}

.timer-btn:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

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

.timer-btn.primary {
  background-color: white;
  color: var(--primary);
  border-color: white;
  width: 5rem;
  height: 5rem;
  font-size: var(--font-size-2xl);
}

.timer-btn.primary:hover {
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
}

/* Stats Cards */
.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-lg);
}

.stat-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.stat-icon.blue {
  background-color: var(--primary-light);
  color: var(--primary);
}

.stat-icon.green {
  background-color: var(--secondary-light);
  color: var(--secondary);
}

.stat-icon.orange {
  background-color: #fef3c7;
  color: var(--warning);
}

.stat-icon.red {
  background-color: #fee2e2;
  color: var(--danger);
}

[data-theme="dark"] .stat-icon.blue {
  background-color: rgba(59, 130, 246, 0.2);
}

[data-theme="dark"] .stat-icon.green {
  background-color: rgba(16, 185, 129, 0.2);
}

[data-theme="dark"] .stat-icon.orange {
  background-color: rgba(245, 158, 11, 0.2);
}

[data-theme="dark"] .stat-icon.red {
  background-color: rgba(239, 68, 68, 0.2);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Todo List */
.todo-input-container {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.todo-input {
  flex: 1;
  min-width: 200px;
  padding: var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

[data-theme="dark"] .todo-input:focus {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.todo-filters {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  color: var(--primary);
  background-color: var(--primary-light);
  border-color: var(--primary);
}

[data-theme="dark"] .filter-btn.active {
  background-color: rgba(59, 130, 246, 0.2);
}

.todo-list {
  list-style: none;
  max-height: 400px;
  overflow-y: auto;
  padding-right: var(--spacing-sm);
}

.todo-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-sm);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.todo-item.completed {
  opacity: 0.6;
}

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

.todo-checkbox {
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.todo-checkbox:hover {
  border-color: var(--primary);
}

.todo-checkbox.checked {
  background-color: var(--secondary);
  border-color: var(--secondary);
  color: white;
}

.todo-content {
  flex: 1;
  min-width: 0;
}

.todo-text {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  word-wrap: break-word;
}

.todo-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  flex-wrap: wrap;
}

.todo-category {
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.category-urgent {
  background-color: #fee2e2;
  color: var(--danger);
}

.category-important {
  background-color: #fef3c7;
  color: var(--warning);
}

.category-normal {
  background-color: var(--primary-light);
  color: var(--primary);
}

[data-theme="dark"] .category-urgent {
  background-color: rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .category-important {
  background-color: rgba(245, 158, 11, 0.2);
}

[data-theme="dark"] .category-normal {
  background-color: rgba(59, 130, 246, 0.2);
}

.todo-actions {
  display: flex;
  gap: var(--spacing-xs);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.todo-item:hover .todo-actions {
  opacity: 1;
}

.todo-btn {
  width: 2rem;
  height: 2rem;
  border: none;
  background-color: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

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

.todo-btn.delete:hover {
  background-color: var(--danger);
  color: white;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-tertiary);
}

.empty-state-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--spacing-md);
  opacity: 0.5;
}

/* Goals Section */
.goals-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.goal-item {
  background-color: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
}

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

.goal-title {
  font-weight: 600;
  color: var(--text-primary);
}

.goal-value {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
}

.goal-progress {
  width: 100%;
  height: 0.75rem;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.goal-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  position: relative;
}

.goal-progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Charts Container */
.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding-bottom: var(--safe-area-inset-bottom);
  z-index: 100;
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.05);
}

.nav-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: var(--nav-height);
  padding: 0 var(--spacing-md);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: var(--spacing-sm);
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: var(--font-size-xs);
  font-weight: 500;
  transition: color var(--transition-fast);
  border: none;
  background: none;
  cursor: pointer;
  flex: 1;
  position: relative;
}

.nav-item:hover,
.nav-item.active {
  color: var(--primary);
}

.nav-icon {
  width: 1.5rem;
  height: 1.5rem;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-icon {
  transform: translateY(-2px);
}

/* Navigation Badge - NOVO */
.nav-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--secondary);
  color: white;
  font-size: 10px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  animation: pulseBadge 2s infinite;
}

@keyframes pulseBadge {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.8;
  }
}

/* Section Visibility */
.section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.section.active {
  display: block;
}

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

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  max-width: 90%;
  width: 400px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-xl);
}

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

.modal-header {
  margin-bottom: var(--spacing-lg);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.modal-body {
  margin-bottom: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

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

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-input,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Install Prompt */
.install-prompt {
  position: fixed;
  bottom: calc(
    var(--nav-height) + var(--spacing-md) + var(--safe-area-inset-bottom)
  );
  left: var(--spacing-md);
  right: var(--spacing-md);
  background-color: var(--primary);
  color: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  z-index: 99;
  transform: translateY(150%);
  transition: transform var(--transition-base);
}

.install-prompt.show {
  transform: translateY(0);
}

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

.install-icon {
  width: 3rem;
  height: 3rem;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.install-text {
  font-weight: 600;
}

.install-subtext {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.install-close {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--spacing-xs);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.install-close:hover {
  opacity: 1;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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

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

.font-bold {
  font-weight: 700;
}

.font-medium {
  font-weight: 500;
}

.mt-1 {
  margin-top: var(--spacing-xs);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-3 {
  margin-top: var(--spacing-md);
}

.mt-4 {
  margin-top: var(--spacing-lg);
}

.mb-1 {
  margin-bottom: var(--spacing-xs);
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-3 {
  margin-bottom: var(--spacing-md);
}

.mb-4 {
  margin-bottom: var(--spacing-lg);
}

/* Responsive Adjustments */
@media (max-width: 640px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
  }
  .timer-display {
    font-size: var(--font-size-3xl);
  }
  .timer-btn {
    width: 3.5rem;
    height: 3.5rem;
  }
  .timer-btn.primary {
    width: 4rem;
    height: 4rem;
  }
  .pomodoro-container {
    padding: var(--spacing-xl);
  }
  .todo-actions {
    opacity: 1;
  }
  .app-container {
    padding: var(--spacing-sm);
  }
}

/* Print Styles */
@media print {
  .bottom-nav,
  .install-prompt,
  .btn {
    display: none !important;
  }
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* Focus Visible for Accessibility */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Selection Color */
::selection {
  background-color: var(--primary);
  color: white;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Due Date Styles */
.todo-duedate {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}

.todo-duedate.future {
  background-color: #d1fae5;
  color: #059669;
}

.todo-duedate.today {
  background-color: #fef3c7;
  color: #d97706;
  animation: pulse 2s infinite;
}

.todo-duedate.overdue {
  background-color: #fee2e2;
  color: #dc2626;
}

[data-theme="dark"] .todo-duedate.future {
  background-color: rgba(16, 185, 129, 0.2);
}

[data-theme="dark"] .todo-duedate.today {
  background-color: rgba(245, 158, 11, 0.2);
}

[data-theme="dark"] .todo-duedate.overdue {
  background-color: rgba(239, 68, 68, 0.2);
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Date input styling */
input[type="date"] {
  font-family: inherit;
  color: var(--text-primary);
}

input[type="date"]::-webkit-calendar-picker-indicator {
  filter: var(--calendar-icon-filter, none);
  cursor: pointer;
}

[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1);
}

/* Header divider for export/import buttons */
.header-divider {
  width: 1px;
  height: 24px;
  background-color: var(--border-color);
  margin: 0 var(--spacing-xs);
}

/* ============================================
  Settings & Notifications Styles
  ============================================ */
.settings-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  transition: background-color var(--transition-fast);
}

.setting-item:hover {
  background-color: var(--bg-tertiary);
}

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

.setting-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.setting-icon.blue {
  background-color: var(--primary-light);
  color: var(--primary);
}

.setting-icon.green {
  background-color: var(--secondary-light);
  color: var(--secondary);
}

.setting-icon.orange {
  background-color: #fef3c7;
  color: var(--warning);
}

[data-theme="dark"] .setting-icon.blue {
  background-color: rgba(59, 130, 246, 0.2);
}

[data-theme="dark"] .setting-icon.green {
  background-color: rgba(16, 185, 129, 0.2);
}

[data-theme="dark"] .setting-icon.orange {
  background-color: rgba(245, 158, 11, 0.2);
}

.setting-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.125rem;
}

.setting-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 3rem;
  height: 1.75rem;
  cursor: pointer;
}

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

.toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
}

.toggle-slider::before {
  content: "";
  position: absolute;
  height: 1.375rem;
  width: 1.375rem;
  left: 0.1875rem;
  bottom: 0.1875rem;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

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

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(1.25rem);
}

.toggle-switch input:focus + .toggle-slider {
  box-shadow: 0 0 0 2px var(--primary-light);
}

/* Notification Stats */
.notification-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
}

.notification-stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.notification-stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.notification-stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: calc(var(--header-height) + var(--spacing-md));
  right: var(--spacing-md);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 400px;
}

.toast {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  animation: slideInRight 0.3s ease;
  max-width: 100%;
}

.toast.success {
  border-left-color: var(--secondary);
}

.toast.warning {
  border-left-color: var(--warning);
}

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

.toast-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.125rem;
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0;
  width: 1.25rem;
  height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

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

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

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

.toast.hiding {
  animation: slideOutRight 0.3s ease forwards;
}

/* Responsive */
@media (max-width: 640px) {
  .toast-container {
    left: var(--spacing-md);
    right: var(--spacing-md);
    max-width: none;
  }
  .notification-stats {
    grid-template-columns: 1fr;
  }
}

/* ============================================
  HABITS STYLES - NOVO E MELHORADO
  ============================================ */
.habits-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.habit-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-sm);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.habit-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--secondary), var(--primary));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.habit-item:hover::before {
  opacity: 1;
}

.habit-item:hover {
  border-color: var(--border-color);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.habit-item.completed {
  opacity: 0.85;
  background: var(--secondary-light);
  border-color: var(--secondary);
}

.habit-item.completed::before {
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  opacity: 1;
}

.habit-item.completed .habit-name {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

.habit-checkbox {
  width: 1.75rem;
  height: 1.75rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  background: white;
  box-shadow: var(--shadow-sm);
}

.habit-checkbox:hover {
  border-color: var(--secondary);
  transform: scale(1.05);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

.habit-checkbox.checked {
  background-color: var(--secondary);
  border-color: var(--secondary);
  color: white;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.5);
}

.habit-content {
  flex: 1;
  min-width: 0;
}

.habit-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-base);
  line-height: 1.4;
}

.habit-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  flex-wrap: wrap;
}

.habit-frequency {
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: var(--font-size-xs);
}

.habit-streak {
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-full);
  background: #fef3c7;
  color: #d97706;
  font-weight: 600;
  font-size: var(--font-size-xs);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.habit-actions {
  display: flex;
  gap: var(--spacing-xs);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.habit-item:hover .habit-actions {
  opacity: 1;
}

/* Stats Grid for Habits */
.habit-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.habit-stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.habit-stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: var(--spacing-xs);
}

.habit-stat-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Responsive Habits */
@media (max-width: 640px) {
  .habit-actions {
    opacity: 1;
  }
  .habit-stats-grid {
    grid-template-columns: 1fr;
  }
  .habit-item {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ============================================
  Settings Section Styles - Corrigido
  ============================================ */
.settings-group {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.settings-group:last-child {
  border-bottom: none;
}

.settings-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.setting-info {
  flex: 1;
}

.setting-label {
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.25rem;
}

.setting-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Toggle Switch Alternative */
.toggle-switch-alt {
  position: relative;
  width: 3rem;
  height: 1.75rem;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  border: none;
  appearance: none;
}

.toggle-switch-alt:checked {
  background-color: var(--primary);
}

.toggle-switch-alt::after {
  content: "";
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  width: 1.5rem;
  height: 1.5rem;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.toggle-switch-alt:checked::after {
  transform: translateX(1.25rem);
}