.container{
    max-width: 1100px;
    margin: 0 auto;
    overflow: auto;
    padding: 0 40px;
}
.card{
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    padding: 20px;
    margin: 10px;
}
.btn{
    display: inline-block;
    padding: 10px 30px;
    cursor: pointer;
    color: #fff;
    background-color: var(--primary--color);
    border: none;
    border-radius: 5px;
}
.btn-outline{
    background-color: transparent;
    border: 1px #fff solid;
}
.btn:hover{
    transform: scale(0.98);
}
/* Backgrounds & coloured buttons*/
.bg-primary,
.btn-primary{
    background-color: var(--primary--color);
    color: #fff;
}
.bg-secondary, 
.btn-secondary{
    background-color: var(--secondary--color);
    color: #fff;
}
.bg-dark, 
.btn-dark{
    background-color: var(--dark--color);
    color: #fff;
}
.bg-light, 
.btn-light{
    background-color: var(--light--color);
    color: #333;
}
.bg-primary a,
.btn-primary a,
.bg-secondary a, 
.btn-secondary a,
.bg-dark a,
.btn-dark a{
    color: #fff;
}
/* Text colors*/
.text-primary{
    color: var(--primary--color);
}
.text-secondary{
    color: var(--secondary--color);

}
.text-dark{
    color: var(--dark--color);

}
.text-light{
    color: var(--light--color);

}
/* text sizes */
.lead{
    font-size: 20px;
}
.sm{
    font-size: 1rem;
}
.md{
    font-size: 2rem;
}
.lg{
    font-size: 3rem;
}
.xl{
    font-size: 4rem;
}
.text-center{
    text-align: center;
}
/* Alert */
.alert{
    background-color: var(--light--color);
    padding: 10px 20px;
    font-weight: bold;
    margin: 15px 0;
}
.alert i{
    margin-right: 10px;
}
.alert-sucess{
    background-color: var(--success--color);
    color: #fff;
}
.alert-error{
    background-color: var(--error--color);
    color: #fff;
}
.flex{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}
.navbar ul{
    display:flex;
}
.navbar a{
    color: #fff;
    padding: 10px;
    margin: 0 5px;
}
.navbar a:hover{
    border-bottom: 2px #fff solid;
}
.grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);/*different syntax for the same:1. 300px 200px or 2. 1fr 1fr or 3. repeat(2,1fr)*/
    gap: 20px;
    justify-content: center;
    align-items: center;
    height: 100%;
}
.grid-3 {
grid-template-columns: repeat(3,1fr);
}
.grid-3-3{
grid-template-columns: repeat(2,1fr);
grid-template-rows: repeat(3,1fr);
}
/* Margin */
.my-1{
    margin: 1rem 0; 
}
.my-2{
    margin: 1.5rem 0; 
}
.my-3{
    margin: 2rem 0; 
}
.my-4{
    margin: 3rem 0; 
}
.my-5{
    margin: 4rem 0; 
}
.m-1{
    margin: 1rem; 
}
.m-2{
    margin: 1.5rem; 
}
.m-3{
    margin: 2rem; 
}
.m-4{
    margin: 3rem; 
}
.m-5{
    margin: 4rem; 
}
/* Padding */
.py-1{
    padding: 1rem 0; 
}
.py-2{
    padding: 1.5rem 0; 
}
.py-3{
    padding: 2rem 0; 
}
.py-4{
    padding: 3rem 0; 
}
.py-5{
    padding: 4rem 0; 
}
.p-1{
    padding: 1rem; 
}
.p-2{
    padding: 1.5rem; 
}
.p-3{
    padding: 2rem; 
}
.p-4{
    padding: 3rem; 
}
.p-5{
    padding: 4rem; 
}