* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.app-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 30px;
}

.header-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.icon {
    font-size: 2rem;
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.date-display {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.nav-tab {
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.nav-tab:hover,
.nav-tab.active {
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    transform: translateY(-1px);
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Progress Section */
.progress-section {
    margin-bottom: 30px;
}

.progress-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 40px;
}

.progress-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: conic-gradient(#4facfe 0deg, #00f2fe 0deg, #f0f0f0 0deg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s ease;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 90px;
    height: 90px;
    background: white;
    border-radius: 50%;
}

.progress-number {
    position: relative;
    z-index: 1;
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
}

.progress-stats {
    display: flex;
    gap: 30px;
    flex: 1;
}

.stat {
    text-align: center;
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 5px;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Add Task Section */
.add-task-section, .add-recurring-section {
    margin-bottom: 30px;
}

.add-task-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.add-task-form, .recurring-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.add-task-form h3{
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 1.3rem;
  text-align: center;
  color: #4338ca;
}

.task-input {
    padding: 15px 20px;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
    background: white;
}

.task-input:focus {
    border-color: #4facfe;
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
}

.date-range {
    display: flex;
    gap: 15px;
}

.date-input-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.date-input-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: #666;
}

.date-input {
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    font-size: 0.9rem;
    outline: none;
    background: white;
    transition: all 0.3s ease;
}

.date-input:focus {
    border-color: #4facfe;
}

.task-options {
    display: flex;
    gap: 15px;
}

.priority-select {
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    font-size: 0.9rem;
    outline: none;
    background: white;
    cursor: pointer;
    flex: 1;
    transition: all 0.3s ease;
}

.priority-select:focus {
    border-color: #4facfe;
}

.add-btn {
    padding: 12px 25px;
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    min-width: 120px;
    justify-content: center;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.3);
}

.add-icon {
    font-size: 1.2rem;
}

/* Filter Section */
.filter-section {
    margin-bottom: 25px;
}

.filter-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    transform: translateY(-1px);
}

/* Calendar Styles */
.calendar-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 30px;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.calendar-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: #f8f9fa;
    color: #333;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn:hover {
    background: #4facfe;
    color: white;
    transform: scale(1.1);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    background: #f0f0f0;
    border-radius: 12px;
    padding: 2px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    font-size: 0.9rem;
}

.calendar-day:hover {
    background: #f0f9ff;
}

.calendar-day.today {
    background: #4facfe;
    color: white;
    font-weight: 600;
}

.calendar-day.selected {
    background: #0284c7;
    color: white;
}

.calendar-day.has-tasks::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: #16a34a;
    border-radius: 50%;
}

.calendar-day.other-month {
    color: #ccc;
    background: #f8f9fa;
}

.calendar-day-header {
    background: #f8f9fa;
    font-weight: 600;
    color: #666;
    font-size: 0.8rem;
    cursor: default;
}

.calendar-day-header:hover {
    background: #f8f9fa;
}

/* Selected Date Tasks */
.selected-date-tasks {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.selected-date-tasks h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

/* Tasks Section */
.tasks-section, .recurring-tasks-section {
    min-height: 300px;
}

.tasks-container, .date-tasks-container, .recurring-tasks-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.task-item, .recurring-task-item {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    animation: slideIn 0.3s ease;
}

.task-item:hover, .recurring-task-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.task-item.completed {
    opacity: 0.7;
}

.task-item.completed .task-text {
    text-decoration: line-through;
    color: #888;
}

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

.task-checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid #ddd;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.task-checkbox.completed {
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    border-color: #4facfe;
    color: white;
}

.task-content {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.task-text {
    font-size: 1rem;
    color: #333;
    flex: 1;
}

.task-text.editing {
    display: none;
}

.task-edit-input {
    padding: 8px 12px;
    border: 2px solid #4facfe;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    flex: 1;
    display: none;
}

.task-edit-input.active {
    display: block;
}

.priority-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.priority-high {
    background: #fee2e2;
    color: #dc2626;
}

.priority-medium {
    background: #fef3c7;
    color: #d97706;
}

.priority-low {
    background: #dcfce7;
    color: #16a34a;
}

.task-actions {
    display: flex;
    gap: 8px;
}

.task-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.edit-btn {
    background: #f0f9ff;
    color: #0284c7;
}

.edit-btn:hover {
    background: #0284c7;
    color: white;
}

.delete-btn {
    background: #fef2f2;
    color: #dc2626;
}

.delete-btn:hover {
    background: #dc2626;
    color: white;
}

.save-btn {
    background: #f0fdf4;
    color: #16a34a;
}

.save-btn:hover {
    background: #16a34a;
    color: white;
}

.cancel-btn {
    background: #fafafa;
    color: #6b7280;
}

.cancel-btn:hover {
    background: #6b7280;
    color: white;
}

/* Recurring Task Specific Styles */
.recurring-task-item {
    flex-direction: column;
    align-items: stretch;
}

.recurring-task-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.recurring-task-info {
    flex: 1;
}

.recurring-task-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.recurring-task-dates {
    font-size: 0.9rem;
    color: #666;
}

.recurring-progress {
    margin-bottom: 15px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #f0f0f0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.9rem;
    color: #666;
    margin-top: 5px;
    text-align: center;
}

.daily-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.daily-checkbox {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px;
    border-radius: 8px;
    background: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 50px;
}

.daily-checkbox:hover {
    background: #e9ecef;
}

.daily-checkbox.completed {
    background: #dcfce7;
}

.daily-checkbox.today {
    background: #fef3c7;
    border: 2px solid #d97706;
}

.daily-checkbox.completed.today {
    background: #dcfce7;
    border: 2px solid #16a34a;
}

.checkbox-date {
    font-size: 0.8rem;
    font-weight: 500;
    color: #666;
}

.checkbox-day {
    font-size: 0.7rem;
    color: #888;
    text-transform: uppercase;
}

.checkbox-mark {
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: white;
    transition: all 0.3s ease;
}

.daily-checkbox.completed .checkbox-mark {
    background: #16a34a;
    border-color: #16a34a;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.8);
    display: none;
}

.empty-state.show {
    display: block;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: white;
}

.empty-state p {
    font-size: 1rem;
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-container {
        padding: 15px;
    }
    
    #bulkTaskTitle{
      width: auto;
    }

    .app-title {
        font-size: 2rem;
    }
    
    .nav-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .progress-card {
        flex-direction: column;
        text-align: center;
        gap: 25px;
    }
    
    .progress-stats {
        justify-content: center;
        gap: 20px;
    }
    
    .task-options, .date-range {
        flex-direction: column;
    }
    
    .filter-buttons {
        flex-wrap: wrap;
    }
    
    .task-item, .recurring-task-item {
        padding: 15px;
    }
    
    .task-actions {
        flex-direction: column;
    }
    
    .calendar-grid {
        font-size: 0.8rem;
    }
    
    .daily-checkboxes {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .progress-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .task-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .nav-tabs {
        gap: 5px;
    }
    
    .nav-tab {
        padding: 10px 16px;
        font-size: 0.8rem;
    }
}

#bulkAddContainer {
  background: #eef2ff; /* light soft purple */
  border: 1.5px solid #a5b4fc; /* medium purple border */
  border-radius: 10px;
  padding: 20px 25px;
  margin: 20px 0;
  text-align: center;
  box-shadow: 0 4px 8px rgba(165, 180, 252, 0.2);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #3730a3; /* dark purple text */
}

#bulkAddContainer h3 {
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 1.3rem;
  color: #4338ca;
}


#bulkAddContainer input[type="date"],
#bulkAddContainer select {
  padding: 8px 12px;
  border: 1.5px solid #a5b4fc;
  border-radius: 6px;
  font-size: 1rem;
  outline-offset: 2px;
  transition: border-color 0.3s ease;
  color: #1e40af;
  min-width: 160px;
}

#bulkAddContainer input[type="text"]{
  padding: 8px 12px;
  border: 1.5px solid #a5b4fc;
  border-radius: 6px;
  font-size: 1rem;
  outline-offset: 2px;
  transition: border-color 0.3s ease;
  color: #1e40af;
  min-width: 650px;
}

@media (max-width: 700px) {
  #bulkAddContainer input[type="text"] {
    max-width: 100%;
  }
}

#bulkAddContainer input[type="text"]:focus,
#bulkAddContainer input[type="date"]:focus,
#bulkAddContainer select:focus {
  border-color: #4facfe;
  box-shadow: 0 0 5px #00f2fe;
}

#bulkAddContainer label {
  font-weight: 500;
  font-size: 1rem;
  color: #4facfe;
  margin-right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

#bulkAddContainer button#bulkAddBtn {
  background: linear-gradient(45deg, #4facfe, #00f2fe);
  color: white;
  border: none;
  margin: 30px;
  padding: 10px 20px;
  font-weight: 600;
  display: inline-block;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#bulkAddContainer button#bulkAddBtn:hover {
  height: 100%;
  background: linear-gradient(45deg, #4facfe, #00f2fe);
  transition: width 0.3s ease;
}