:root{
    --primary-color: #41C9E2;
    --primary-color-dark: #008DDA;
    --secondary-color: var(--primary-color-dark);
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --extra-light: #faf5ff;
    --max-width: 1200px;
}

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

body{
    font-family: 'Poppins', sans-serif;
}

header{
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--primary-color-dark);
    display: flex;
    justify-content: center;
}
header a{
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--extra-light);
    text-decoration: none;
    padding: 1.5rem;
}

.main{
    position: absolute;
    width: 100%;
    background-color: var(--extra-light);
    min-height: 100vh;
    margin: auto;
    text-align: center;
}

.main h3{
    margin-top: 7%;
}

.container{
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    margin-top: 40px;
    margin-bottom: 30px;
    padding: 0 6%;
    align-items: center;
    justify-content: space-between;
}

.container .works-item{
    width: 23%;
    height: 420px;
    background: var(--primary-color-dark);
    border-radius: 10px;
    padding: 1% 0;
}
.works-item:hover{
    cursor: pointer;
    box-shadow: 0 0 5px var(--primary-color-dark);
}
.works-item .works-image img{
    max-width: 180px;
    border-radius: 100%;
    margin-bottom: 1rem;
}
.works-content h4{
    font-size: 85%;
    margin-bottom: 0.8rem;
}
.works-content p{
    margin-bottom: 1.4rem;
}
.work-right{
    opacity: 0;
    animation: slideRight 0.7s ease forwards;
    animation-delay: 0.8s;
}
.work-top{
    opacity: 0;
    animation: slideTop 0.7s ease forwards;
    animation-delay: 0.8s;
}
.work-left{
    opacity: 0;
    animation: slideLeft 0.7s ease forwards;
    animation-delay: 0.8s;
}
.btn{
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 140px;
    height: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    cursor: pointer;
    background-color: var(--primary-color);
    color: #fff;
}
.btn:hover{
    background-color: var(--primary-color);
    box-shadow: 0 0 5px var(--primary-color);
}
a{
    text-decoration: none;
}
.article{
    width: 60%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: auto;
}

.article h3{
    margin-top: 12%;
}
.article .intro{
    margin-top: 2%;
    margin-bottom: 4%;
}
.article img{
    width: 60%;
}
.article .title{
    text-align: center;
    margin-top: 0.4rem;
}
.article p{
    margin-bottom: 0.8rem;
    text-align: justify;
}
.article .conclusion{
    margin-top: 2%;
}
.article .a2{
    margin-top: 2.5%;
}
.article .a3{
    margin-top: 2%;
}

@keyframes slideRight{
    0%{
        opacity: 0;
        transform: translateX(-100px);
    }
    100%{
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideLeft{
    0%{
        opacity: 0;
        transform: translateX(100px);
    }
    100%{
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideTop{
    0%{
        opacity: 0;
        transform: translateY(100px);
    }
    100%{
        opacity: 1;
        transform: translateY(0);
    }
}
footer{
    margin: auto;
    font-size: small;
    padding-bottom: 1rem;
}
@media (max-width: 750px) {
    header{
        z-index: 99;
    }
    header a{
        font-size: 1.2rem;
    }
    .main h3{
        position: relative;
        font-size: 1.3rem;
        font-weight: 600;
        margin-top: 90px;
    }
    .container{
        position: relative;
        width: 100%;
        display: flex;
        flex-direction: column;
    }
    .container .works-item{
        width: 60%;
        height: 360px;
        padding: 2%;
        margin-bottom: 6%;
    }
    .works-content .works-image img{
        max-width: 160px;
        margin-top: 0.5rem;
        margin-bottom: 0.4rem;
    }
    .works-content h4{
        font-size: 75%;
        margin-bottom: 0.5rem;
    }
    .works-content p{
        font-size: 0.7rem;
        font-weight: 500;
        margin-bottom: 0.8rem;
    }
    .btn{
        width: 110px;
        font-size: 0.8rem;
    }
    footer{
        font-size: 0.6rem;
    }
    .article{
        width: 80%;
    }
    .article img{
        width: 80%;
    }
    .article h3{
        font-size: 1.3rem;
    }
    .article p{
        font-size: 0.9rem;
        font-weight: 500;
    }
    .article .title{
        font-size: 90%;
    }
}