* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    box-sizing: border-box;
}

.slider-container {
    grid-column: 1/2;
    overflow: hidden;
    position: relative;
    border-radius: 0 0 35px 35px;
    box-shadow: 2px 2px 25px rgba(141, 226, 179, 0.5);
}

.slider {
    width: 300%;
    display: flex;
}

.slider-section {
    width: calc(100%/3);
    z-index: -1;
    position: relative;
}

.slider-section>img {
    width: 100%;
    filter: brightness(60%);
}

.slider-description {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
}

.slider-description>h2 {
    font-size: 2rem;
    color: #f4ff91;
}

.btn-left {
    cursor: pointer;
    position: absolute;
    top: 50%;
    color: #fff;
    font-size: 60px;
    transition: all .2s;
}

.btn-right {
    cursor: pointer;
    position: absolute;
    top: 50%;
    color: #fff;
    font-size: 60px;
    transition: all .2s;
}

.btn-left:hover {
    color: #fff7aa;
}

.btn-right:hover {
    color: #fff7aa;
}

.btn-left {
    left: 2%;
}

.btn-right {
    right: 2%;
}

.portal-content {
    grid-column: 1/2;
}

.portal-content h2 {
    color: #28a739;
    font-size: clamp(1.8em, 3vw, 2.7em);
    font-weight: 800;
    text-shadow: 4px 4px 4px yellow;
    text-align: center;
    padding: 2rem;
}

.portal-slider {
    width: 170%;
    display: flex;
    animation: portal 9s infinite ease-in-out;
}

.portal-slider-section {
    width: calc(100%/5);
    box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
}

.portal-slider-section:hover {
    background-color: #f4ff91;
    transition: all .3s;
}

@keyframes portal {
    0%{margin-left: 0%}
    30%{margin-left:0%}
    40%{margin-left: calc(-170%/5)}
    60%{margin-left: calc(-170%/5)}
    70%{margin-left: calc(-340%/5)}
    95%{margin-left: calc(-340%/5)}
}

.portal-slider-section>h3 {
    color: #002C44;
    font-size: 1.5rem;
    text-align: center;
    padding: 1rem;
}

@media(min-width:1500px) {
    .slider-description>h2 {
        font-size: 3rem;
    }
}

@media(max-width:1200px) {
    .slider-container {
        width: 100%;
        height: 100%;
        border-radius: 0;
    }

    .portal-content {
        width: 100%;
    }
}

@media(max-width:720px) {
    .btn-left, .btn-right {
        font-size: 2.5rem;
        top: 50%;
    }

    .slider-description {
        top: 80%;
        width: 100%;
        padding: 1rem;
    }

    .slider-description>h1 {
        font-size: 2rem;
        color: #f4ff91;
    }

    .portal-content {
        width: 100%;
    }

    .portal-content h2 {
        padding: 1rem;
    }

    .portal-slider-section>h3 {
        padding: .7rem 0;
        font-size: 1.2rem;
    }

    .portal-links img {
        width: 100%;
    }

    .portal-links {
        padding-bottom: 10px;
    }
}