*{
    box-sizing: border-box;
    
}

body{
    --primary: #FFC107;
    --primarydark: rgba(255, 160, 0, 1);
    --primarylight: rgba(255, 236, 179, 1);
    --secondary: #A020F0;
    --accent: rgba(83, 109, 254, 1);
    --white: #fff;
    --black: #000;
    --gray: #555;

    --headingfont: 'Times New Roman', Times, serif;
    --bodyfont: Arial, Helvetica, sans-serif;
    --thirdfont: ;

    margin: 0;
    padding: 0;
    width: 100%;

    color: var(--black);
    background-color: var(--white);
}

h1{
    font-family: var(--headingfont);
    font-size: 72px;
    font-weight: 700;
    margin: 0;
    padding: 0;
}

h2{
    font-family: var(--headingfont);
    font-size: 48px;
    font-weight: 700;
    margin: 0;
    padding: 0;
}

h3{
    font-family: var(--bodyfont);
    font-size: clamp(16px,2.5vw ,36px);
    font-weight: 700;
    margin: 0;
    padding: 0;
}

h5{
    font-family: var(--bodyfont);
    font-weight: 600;
    font-size: 1.5rem;
    margin: 0;
    padding: 0;
}

p{
    font-family: var(--bodyfont);
    font-weight: 500;
    font-size: 1rem;
    margin: 0;
    padding: 0;
}

a{
    color: var(--accent);
    text-decoration: none;
    font-family: var(--bodyfont);
}

a:hover{
    border-bottom: var(--accent) solid 2px;
    transition: ease-in;
}

.primary-btn{
    color: var(--white);
    background-color: var(--accent);
    border: var(--accent) 2px solid;

    padding: 8px 16px;
    border-radius: 2px;
    font-weight: 600;
}

.primary-btn:hover{
    color: var(--accent);
    background-color: var(--primary);
}

.secondary-btn{
    color: var(--accent);
    border: var(--accent) 2px solid;

    padding: 8px 16px;
    border-radius: 2px;
    font-weight: 600;
}

.secondary-btn:hover{
    background-color: var(--primary);
}

.image img{
    width: 100%;
    height: auto;
}

#header{
    width: 100%;
    height: 80px;
    padding: 20px;
}

section{
    width: 100%;
    padding: 40px;
}

.container{
    width: 100%;
    max-width: 1400px;
    min-height: 30px;
    margin: auto;
}

#header .container{
    position: relative;
    min-height: fit-content;

    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

#header .container .logo{
    width: 200px;
}

#header .container .navigation{
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 40px;

    display: none;
    background-color: var(--primarylight);
}

#header .container .navigation nav{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

#hero{
    background-color: var(--white);
}

#hero .container{
    display: grid;
    gap: 16px;
}

#hero .container .hero-left{
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 16px;
}

#proof{
    background-color: var(--primarylight);
    width: 100%;
}

#proof .container{
    width: 100%;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
}

#features .container .grid{
    display: grid;
    width: 100%;
}

#features .container .grid .text ul{
    height: 100%;

    margin-block-start: 0;
    margin-block-end: 0;

    font-size: 1.5rem;

    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-around;
}

#benifits .container{
    display: grid;
    width: 100%;
}

#benifits .container .image{
    padding: 40px;
}

#benifits .container .text{
    padding: 40px;
    
}

#benifits .container .benifit1, .benifit3{
    background-color: var(--primarylight);
}

#reviews{
    background-color: var(--primarylight);
}

#reviews .container .review-couresel{
    padding: 20px;

    display: flex;
    align-items: center;
    justify-content: center;
}

#gallery .container .gallery-images{
    padding: 20px;

    display: grid;
}

#cta{
    background-color: var(--primarylight);
}

#cta .container .nav{
    padding: 80px;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
#cta a{
    font-size: 24px;
}

#other .container .grid{
    display: grid;
}

#other .container .grid .books, .experiment, .online{
    padding: 20px;

    display: flex;
    flex-direction: column;
    gap: 8px;
}

#other .container .grid .books img, .experiment img, .online img{
    border: var(--black) solid 1px;
}

#footer{
    background-color: var(--primarylight);
    padding: 40px;
    width: 100%;
}

#footer .container form{
    padding: 40px;
    margin: auto;

    display: flex;
}

#footer .container form input{
    background: var(--white);
    width: 600px;
    height: 40px;
    border: var(--accent) 1px solid;
}

#footer .container form button{
    background: var(--accent);
    width: 200px;
    height: 40px;
    color: var(--white);
    border: var(--accent);
}

@media (min-width: 600px) {
    p{
        font-size: 1.5rem;
    }

    #hero .container .hero-right img{
        width: 60vw;
        float: right;
    }

    #proof .container{
        flex-direction: row;
    }

    #features .container .grid{
        grid-template-columns: 1fr 1fr;
    }

    #benifits .container{
        grid-template-columns: repeat(2, 1fr);
        row-gap: 32px;
    }

    #gallery .container .gallery-images{
        grid-template-columns: repeat(2,1fr);
        gap: 16px;
    }

    #gallery .container .gallery-images img{
        padding: 20px;
    }

    #cta{
        padding: 80px;
    }

    #other .container .grid{
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }


}

@media (min-width: 1000px) {
    #header .container .mobile-nav{
        display: none;
    }

    #header .container .navigation{
        position: relative;
        display: block;
        background-color: var(--white);
        padding: 0;
        top: 0;
        right: 0;
    }

    #header .container .navigation nav{
        flex-direction: row;
    }

    #hero .container{
        padding: 20px;
        grid-template-columns: 60% 40%;
        
    }

    #hero .container .hero-left{
        padding-top: 50px;
    }

    #hero .container .hero-right img{
        width: 30vw;
    }

    #features .container .grid .image{
        padding: 20px;
    }

    #reviews .container .review-couresel{
        height: 150px;
    }


}