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

body {
    background: #ffff;
    overflow-x: hidden;
}

.gallery-container {
    width: 80%;
    margin: 100px auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 300px);
}

.gallery-container .gallery-card {
    overflow: hidden;
}

.gallery-container .gallery-card a {
    width: 100%;
    height: 100%;
}

.gallery-container .gallery-card a>img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.gallery-container .gallery-card a>img:hover {
    transform: scale(1.5)rotate(30deg);
}


/* barra de navegacion*/

:root {
    --theme-color: white;
    --primary-color: #124f88;
    --secundary-color: #7bd106;
    --text-color-inverse: white;
    --text-color: black;
    --navbar-shallow-color: #e5e5e5;
    --menu-mobile-background-color: #066baa;
}

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 70px;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--theme-color);
    color: var(--text-color);
    padding-top: 70px;
}

a {
    text-decoration: none;
    color: var(--text-color);
}

.horizontal-padding {
    padding-left: 25px;
    padding-right: 25px;
}

.vertical-padding {
    padding-top: 25px;
    padding-bottom: 25px;
}

@media(min-width: 950px) {
    .horizontal-padding {
        padding-left: 70px;
        padding-right: 70px;
    }
    .vertical-padding {
        padding-top: 70px;
        padding-bottom: 70px;
    }
}

.topheader {
    box-shadow: 0 4px 5px var(--navbar-shallow-color);
    position: fixed;
    background-color: var(--theme-color);
    left: 0;
    top: 0;
    width: 100%;
    z-index: 100;
}

.topnav {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    max-width: 980px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: 500;
    color: var(--primary-color);
}


/*menu*/

.menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu li {
    padding: 0 15px;
}

.menu a {
    color: var(--text-color);
    font-size: 18px;
    font-weight: 500;
    line-height: 50px;
    text-transform: uppercase;
    position: relative;
}

.menu a::after {
    content: "";
    background-color: var(--secundary-color);
    position: absolute;
    left: 0;
    top: 100%;
    width: 100%;
    height: 4px;
    opacity: 0;
    transition: opacity 0.3s;
}

.menu a.selecccion::after,
.menu a:hover::after {
    opacity: 0.8;
}

.menu a:hover {
    color: var(--primary-color);
}

.open-menu,
.close-menu {
    display: none;
}


/*menu mobile*/

@media(max-width:950px) {
    .menu {
        flex-direction: column;
        position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        align-items: center;
        background-color: var(--menu-mobile-background-color);
        height: 100%;
        overflow-y: auto;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s;
    }
    .logo {
        display: flex;
        align-items: center;
        font-size: 40px;
        font-weight: 500;
        color: var(--primary-color);
    }
    .logo img {
        height: 100px;
        width: 100px;
    }
}