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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

/* Custom Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.btn-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    transition: all 0.3s ease;
}

.btn-gradient-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6b4190 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    color: white;
}

/* Text Gradient */
.text-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* Main Content */
.main-content {
    background: transparent;
    min-height: calc(100vh - 120px);
}

/* Header Card */
.header-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.9) 100%);
    backdrop-filter: blur(10px);
    border-radius: 20px !important;
    border: 1px solid rgba(255,255,255,0.3);
}

.header-icon {
    width: 60px;
    height: 60px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Add Task Card */
.add-task-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.9) 100%);
    backdrop-filter: blur(10px);
    border-radius: 15px !important;
    border: 1px solid rgba(255,255,255,0.3);
}

/* Form Controls */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.input-group-text {
    border-radius: 10px 0 0 10px;
    border: 2px solid #667eea;
    border-right: none;
}

.input-group .form-control {
    border-left: none;
    border-radius: 0 10px 10px 0;
}

/* Cards */
.card {
    border-radius: 15px !important;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3) !important;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
}

/* Tasks Container */
.tasks-container {
    max-height: 60vh;
    overflow-y: auto;
}

.tasks-container::-webkit-scrollbar {
    width: 6px;
}

.tasks-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.tasks-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

/* Task Items */
.task-item {
    padding: 15px 20px;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.task-item:hover {
    background-color: #f8f9fa;
    border-left-color: #667eea;
    transform: translateX(5px);
}

.task-item.task-completed {
    background: linear-gradient(135deg, #e8f5e8 0%, #f0f8f0 100%);
    border-left-color: #28a745;
}

.task-text {
    font-weight: 500;
    color: #333;
    font-size: 1rem;
}

.task-actions {
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

/* Buttons */
.btn {
    border-radius: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-outline-primary:hover {
    background-color: #667eea;
    border-color: #667eea;
    transform: translateY(-1px);
}

.btn-outline-success:hover {
    background-color: #28a745;
    border-color: #28a745;
    transform: translateY(-1px);
}

.btn-outline-warning:hover {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #333;
    transform: translateY(-1px);
}

.btn-outline-danger:hover {
    background-color: #dc3545;
    border-color: #dc3545;
    transform: translateY(-1px);
}

/* Form Check (Custom Checkbox) */
.form-check-input {
    width: 1.5em;
    height: 1.5em;
    border: 2px solid #667eea;
    border-radius: 6px;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.form-check-input:focus {
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

/* Empty State */
.empty-state {
    padding: 3rem 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.empty-state i {
    color: #dee2e6 !important;
}

/* Stats */
.stat-item {
    padding: 0.5rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Badge */
.badge {
    font-size: 0.8rem;
    padding: 0.5rem 0.8rem;
    border-radius: 20px;
    font-weight: 500;
}

/* Toast Container */
.toast {
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-card h1 {
        font-size: 1.8rem;
    }
    
    .header-icon {
        width: 50px;
        height: 50px;
    }
    
    .task-item {
        padding: 12px 15px;
    }
    
    .task-actions {
        opacity: 1;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        border-radius: 8px;
        margin-bottom: 2px;
    }
    
    .task-item:hover {
        transform: none;
    }
    
    .card:hover {
        transform: none;
    }
    
    .tasks-container {
        max-height: 50vh;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .header-card h1 {
        font-size: 1.5rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .task-text {
        font-size: 0.9rem;
    }
    
    .btn-sm {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }
}

/* Animation for new tasks */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.task-item.new-task {
    animation: slideInRight 0.5s ease-out;
}

/* Glassmorphism effect */
.glass {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Loading animation */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}