* {
    margin: 0;
    padding: 0;
}

@import url('https://fonts.googleapis.com/css2?family=Fira+Sans:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

header {
    width: 100vw;
    /* border: 1px solid black; */
}

.navbar {
    height: 60px;
    width: 1200px;
    display: flex;
    /* border-bottom: 2px solid #265443; */
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    margin: 0 auto;


}

.logo {
    height: 100%;
    /* border: 1px solid black; */
    display: flex;
    align-items: center;
    cursor: pointer;

}

.logo #name {
    font-size: clamp(18px, .9vw + 1rem, 40px);
    font-weight: bold;
    font-family: 'Times New Roman', Times, serif;
    color: #d68c45;
    line-height: .9;
    margin-top: 5px;
}


.logo #logoimg {
    width: 100%;
    height: 100%;
    background: transparent;
}

.pages ul {
    /* border: 1px solid black; */
    height: 100%;
    display: flex;
    align-items: center;
    gap: 30px;
}

.pages ul li {
    list-style: none;
    font-size: clamp(22px, 0.8vw + 0.8rem, 35px);
}

.pages ul li a {
    color: #265443;
    text-decoration: none;
    cursor: pointer;
    /* transition: text-decoration 2s ease; */
    position: relative;
}

.pages ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0%;
    height: 2px;
    background: #265443;
    transition: width 0.3s ease;
}

.pages ul>li>a:hover::after {
    width: 100%;
}

.pages ul #course-list {
    position: relative;
    color: #265443;
    cursor: pointer;
}



.pages ul .opt {
    display: flex;
    flex-direction: column;
    position: absolute;
    /* bottom: 100px; */
    left: -20%;
    width: 140px;
    height: 0;
    opacity: 0;
    visibility: hidden;
    gap: 0;
    box-sizing: border-box;
    background-color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, .5);
    transition: height .3s ease, opacity .3s ease;
    z-index: 1;
}

.pages ul .opt .option {
    width: 100%;
    font-size: clamp(15px, .5vw + .6rem, 22px);
    box-sizing: border-box;
    padding: 5px;
}

.pages ul .opt .option a {
    color: #265443;
}

.pages-section ul #menucourse {
    color: #265443;
    padding: 10px 0;
}

.pages-section ul #menucourse div img {
    width: 12px;
    height: 12px;
}


.pages-section ul .opt {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    gap: 0;
    box-sizing: border-box;
    background-color: #FEF6E8;
    transition: transform .3s ease, max-height .4s ease, opacity .3s ease;
    transform: translatey(10%);

}

.pages-section ul .opt .option {
    width: 100%;
    font-size: 18px;
    box-sizing: border-box;
    padding: 10px;
}

.pages-section ul .opt .option a {
    color: #265443;
}

.menu img,
.close img {
    width: 0px;
    opacity: 0;
    visibility: hidden;
    cursor: pointer;
}

.close img {
    width: 50px;
    cursor: pointer;
    opacity: 1;
    visibility: visible;

}

.pages-section {
    width: 100vw;
    max-height: 0;
    opacity: 0;
    transform: translateY(-10%);
    overflow: hidden;
    /* border: 1px solid black; */
    background-color: #fefee3;
    transition: opacity .3s ease, max-height .3s ease, transform .3s ease;

}

.pages-section ul {
    padding: 0;
    width: 100%;
    /* border: 1px solid yellow; */
}

.pages-section ul li {
    list-style: none;
    font-size: 20px;
    padding: 3px 30px;
    cursor: pointer;
    width: 100%;
    padding: 10px 0;
    text-align: center;
}

.pages-section ul li a {
    color: #265443;
    text-decoration: none;
    cursor: pointer;
    position: relative;

}

.pages-section ul li:hover {
    background-color: #E2EAD3;
}

.pages-section ul li:first-of-type:hover {
    background-color: white;
}

.close {
    display: flex;
    justify-content: center;

}

.show {
    max-height: 100%;
    opacity: 1;
    transform: translateY(0%);
    transition: opacity .5s ease, max-height 2s ease, transform .5s ease;
}

@media screen and (min-width:1920px) {
    .navbar {
        width: 1500px;
        padding: 20px 0;
    }

    .pages ul {
        gap: 50px;
    }

    .pages ul .opt {
        left: -20%;
    }

    .pages ul #course-list img {
        width: 20px;
    }

    .pages ul .opt {
        width: 180px;
    }

    .pages ul .opt .option {
        padding: 7px 10px;
    }
}

@media screen and (min-width:1024px) and (max-width:1440px) {
    .navbar {
        width: 1000px;
        padding: 10px 0;
    }

    .pages ul {
        gap: 20px;
    }

    .pages ul .opt {
        width: 130px;
    }

    .pages ul .opt .option {
        padding: 7px;
    }
}


@media screen and (min-width:481px) and (max-width:1023px) {
    .navbar {
        width: 94vw;
        padding: 10px 3vw;
    }

    .hide {
        display: none;
    }

    .menu img {
        width: 50px;
        opacity: 1;
        visibility: visible;
    }

    .pages-section {
        width: 100vw;
        /* border: 1px solid black; */
    }
}

@media screen and (max-width:480px) {
    .navbar {
        width: 94vw;
        padding: 1vh 2vw;
    }

    .hide {
        display: none;
    }

    .menu img {
        width: 35px;
        opacity: 1;
        visibility: visible;
    }

    .pages-section {
        width: 100vw;
        /* border: 1px solid black; */
    }

    .logo {
        align-items: center;
    }

    .menu img {
        width: 40px;
    }

    .logo #name .lastword {
        font-size: 22px;
    }

    .pages-section ul {
        width: 100%;
        padding: 5px 0;
    }

    .pages-section ul li {
        margin-left: 0;
        font-size: 18px;
    }
}

.display {
    height: auto;
    opacity: 1;
    visibility: visible;
}