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

:root {
    --main-font-size: 18px;
    --white-color: #FFF;
    --black-color: #000;
    --light-color: #F5F5F5;
    --strong-color: #55a1a2;
    --main-transition: all ease-in-out 0.4s;
}

html {
	font-family: 'Didact Gothic', serif;
	font-size: var(--main-font-size);
	letter-spacing: 0.0075em;
    scroll-behavior: smooth;
    font-kerning: none;
}

h1 {
	font-size: 1.7em;
}

h2 {
	font-size: 1.3em;
}

h3 {
    font-size: 1em;
}

a {
	text-decoration: none;
	color: inherit;
}

.hidden {
	position: fixed;
	opacity: 0;
}

.no-focus-outline {
	outline: 0;
}

.animate-underline {
    position: relative;
}

.animate-underline::before {
    content: "";
    position: absolute;
    left: 1em;
    bottom: 1em;
    height: 1px;
    display: inline-block;
    width: calc(100% - 2em);
    background-color: var(--white-color);
    visibility: hidden;
    transform: scaleX(0);
	transition: var(--main-transition);
}

.animate-underline:hover::before {
    background-color: var(--black-color);
    visibility: visible;
    transform: scaleX(1);
}

.page-header {
	align-items: center;
	display: flex;
	justify-content: space-between;
	background-color: var(--strong-color);
    background-image: url(../img/banner.png);
    background-size: cover;
    height: 23vw;
	color: var(--white-color);
}

.top-menu {
	margin: 1em;
	display: flex;
	align-items: center;
}

footer {
	margin-top: auto;
	background-color: var(--strong-color);
	color: var(--white-color);
	display: flex;
	flex-wrap: wrap;
	justify-content: space-evenly;
}

.footer-part {
	justify-content: space-between;
	align-items: center;
	margin: 0.5em;
}

.footer-part img {
	display: inline-block;
	margin: 1em;
	max-height: 60px;
}

.footer-part p {
	display: flex;
	justify-content: center;
	align-content: center;
	margin: 0 1em;
	font-size: 0.7em;
	text-align: center;
}

.main-container {
	min-height: 100vh;
	background-color: var(--light-color);
}

.flex-column-container {
	display: flex;
	flex-direction: column;
}

.flex-row-container {
	display: flex;
	flex-direction: row;
}

.main-column {
	width: calc(320px + (100vw - 320px)/2);
	margin: 1em auto;
}

.margin-one-em {
    margin: var(--main-font-size);
}

.margin-botton-one-em {
    margin-bottom: var(--main-font-size);
}

.margin-left-three-em {
	margin-left: calc(3 * var(--main-font-size))
}

.margin-right-one-em {
	margin-right: var(--main-font-size)
}

.button {
    border: 1px solid var(--strong-color);
	background-color: var(--strong-color);
    color: var(--white-color);
	font-size: 1.1em;
	padding: 1.1em;
	margin: 1em auto;
	transition: var(--main-transition);
}

.button:hover {
	background-color: var(--white-color) !important;
    color: var(--black-color) !important;
}

.button:focus {
    animation: pulse 1s linear 1;
}

.floatable-to-left {
	max-width: 300px;
	float: left;
	display: block;
	margin-right: var(--main-font-size);
}

.floatable-to-right {
	max-width: 300px;
	display: block;
	margin-left: var(--main-font-size);
	float: right;
}

.small-padding {
	padding: 8px;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    list-style: none;
    row-gap: 1em;
    column-gap: 1em;
    padding: 1em;
    background-color: #149497;
    width: 100%;
}

.square-tile {
    container-name: testimonial;
    container-type: inline-size;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background-color: #fec601;
    color: #4c3b4d;
    border-radius: 1em;
    padding: 1em;
    font-family: "Oswald", sans-serif;
    font-kerning: normal;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.75em;
    text-align: center;
}

@keyframes pulse {
    0% {
        background-color: var(--strong-color);
        color: var(--white-color);
    }
    50% {
        background-color: var(--white-color);
        color: var(--black-color);
    }
    100% {
        background-color: var(--strong-color);
        color: var(--white-color);
    }
}

@media screen and (min-width: 500px) {
	html {
		font-size: calc(var(--main-font-size) + (100vw - 500px)/175);
	}
}

@media screen and (max-width: 830px) {
	.floatable-up {
        float: none;
        margin: 0 auto calc(2 * var(--main-font-size));
    }
	.floatable-down {
        float: none;
        margin: calc(2 * var(--main-font-size)) auto 0;
    }
	.flex-column-container-reverse {
		display: flex;
		flex-direction: column-reverse;
	}
}

@media screen and (725px < width <= 1500px) {
    .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (width <= 725px) {
    .testimonial-grid {
        grid-template-columns: repeat(1, 1fr);
    }
}

@container testimonial (min-width: 100px) {
    .testimonial-content {
        font-size: 6cqw;
    }
}