:root {
    --primary-color: #4a6bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --body-bg: #ffffff;
    --text-color: #212529;
    --card-bg: #ffffff;
    --border-color: #dee2e6;
}

.dark-mode {
    --primary-color: #5d7aff;
    --secondary-color: #6c757d;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --light-color: #343a40;
    --dark-color: #f8f9fa;
    --body-bg: #121212;
    --text-color: #f8f9fa;
    --card-bg: #1e1e1e;
    --border-color: #444;
}

body {
    background-color: var(--body-bg);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.stat-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

.stat-card h3 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--secondary-color);
}

.stat-card span {
    font-size: 1.8rem;
    font-weight: bold;
}

.total-tasks {
    border-bottom: 4px solid var(--info-color);
}

.completed-tasks {
    border-bottom: 4px solid var(--success-color);
}

.incomplete-tasks {
    border-bottom: 4px solid var(--warning-color);
}

.task-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-left: 4px solid var(--secondary-color);
    transition: all 0.3s;
}

.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.task-card.completed {
    opacity: 0.8;
    border-left-color: var(--success-color);
}

.task-card.high-priority {
    border-left-color: var(--danger-color);
}

.task-card.medium-priority {
    border-left-color: var(--warning-color);
}

.task-card.low-priority {
    border-left-color: var(--success-color);
}

.task-title {
    font-weight: bold;
    margin-bottom: 5px;
}

.task-category {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    background-color: var(--secondary-color);
    color: white;
    margin-bottom: 8px;
}

.task-description {
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 10px;
}

.task-due-date {
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.7;
}

.task-actions {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

.modal-content {
    background-color: var(--card-bg);
    color: var(--text-color);
}

.form-control, .form-select {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

.form-control:focus, .form-select:focus {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(74, 107, 255, 0.25);
}

@media (max-width: 768px) {
    .stat-card span {
        font-size: 1.5rem;
    }
}

footer {
    background-color: #1c7ee0;
    color: #000000;
    font-size: 0.9rem;
    border-top: 0.5px solid #dee2e6;
}

/* Additional styles for auth UI */
#userProfile {
    display: flex;
    align-items: center;
}

#userAvatar {
    object-fit: cover;
}

#userName {
    font-weight: 500;
}

#signInBtn .bi {
    margin-right: 5px;
}