/* Custom styles */
body {
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn {
    transition: all 0.2s;
}

.btn:active {
    transform: translateY(1px);
}

/* Exercise card styles */
.exercise-card {
    height: 100%;
}

.badge {
    font-size: 0.9em;
    padding: 0.5em 1em;
}

/* Container list styles */
.list-group-item {
    transition: background-color 0.2s;
}

.list-group-item:hover {
    background-color: #f8f9fa;
}

/* Error message styles */
.alert {
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}