style.css

:root {
	--card-bg: white;
	--main-btn-primary: black;
	--main-btn-secundary: white;
}

body {
	padding: 1rem;
	font-family: -apple-system, BlinkMacSystemFont, "Arial", sans-serif;
	background-image: url("images/background.png");
}

p {
	color: rgb(24, 24, 24);
	font-size: 15px;
	margin-bottom: 10px;
	margin-top: 5px;
	text-align: justify;
	line-height: 1.7;
}

button {
	border: 0;
	border-radius: 0.25rem;
	font-size: 1rem;
	line-height: 1.2;
	padding: 0.25rem 0.5rem;
	margin: 0.25rem;
	cursor: pointer;
}

a.button {
	display: block;
	border: 0;
	border-radius: 0.25rem;
	font-size: 1rem;
	line-height: 1.2;
	padding: 0.25rem 0.5rem;
	margin: 0.25rem;
	cursor: pointer;
	text-decoration: none;
	text-align: center;
	color: black;
}

#head-flex-container {
	margin-bottom: 2rem;
	display: flex;
	flex-direction: row;
	flex-wrap: wrap-reverse;
	justify-content: space-between;
	align-items: flex-end;
	gap: 1rem;
}

#head-flex-container > #title-container {
	flex-grow: 3;
}

#title-container > #name {
	margin: 0;
	font-size: 42px;
}

#title-container > #subname {
	margin: 0;
	color: white;
	font-size: 18px;
}

#main-buttons-flex-container {
	margin-top: 1.5rem;
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-evenly;
	align-items: baseline;
}

#main-buttons-flex-container > .button {
	flex: 1;
	white-space: nowrap;
	min-width: 230px;
}

#cards-container {
	padding: 0.5rem 0;
}

.card {
	min-width: 230px;
	margin: 1rem auto;
	padding: 16px;
	border: 1px solid var(--card-bg);
	border-radius: 16px;
	background-color: var(--card-bg);
	transition: transform .5s, box-shadow 1s;
}

.card:hover {
	transform: scale(1.02) perspective(0px);
	box-shadow: 0 10px 10px rgba(0, 0, 0, 0.2);
}

.card > h3 {
	margin: 0.25rem;
}

.card p {
	color: rgb(92, 93, 97);
}

.card-description-flex-container {
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: flex-start;
	column-gap: 20px;
	min-width: 100%;
}

.card-description-flex-container p:first-child {
	flex: 2 1 780px;
}

.card-description-flex-container div:nth-child(2) {
	flex: 55 1 0;
}

.card-description-flex-container > p {
	display: block;
	text-align: justify;
}

.buttons-flex-container {
	display: flex;
	flex-direction: column;
	gap: 7px 5px;
	flex: 1;
    max-width: 500px;
}

.divided-buttons-flex-container {
	display: flex;
	flex-direction: row;
	gap: 0 5px;
}

.divided-buttons-flex-container > .button {
	flex: 1;
}

footer > p {
	color: rgb(136, 138, 142);
	font-size: 10px;
}

/* Buttons Styling */

button#translate {
	padding: 0.5rem 0.75rem;
	margin: 5px 0 0 0;
	background-color: #58A6FF;
	color: white;
	transition: background-color 0.6s;
}

button#translate:hover {
	background-color: #4080c9;
}

button#translate > img {
	vertical-align:bottom;
	width: 20px;
}

#main-buttons-flex-container > .button {
	padding: 0.5rem 0.75rem;
}

#main-buttons-flex-container > .button:hover {
	box-shadow: -7px -7px 20px 0px #fff9,
				-4px -4px 5px 0px #fff9,
				7px 7px 20px 0px #0002,
				4px 4px 5px 0px #0001;
}

#main-buttons-flex-container > .button#hf {
	border-radius: 0;
	background-color: var(--main-btn-primary);
	border: 1px solid var(--main-btn-primary);
	color: var(--main-btn-secundary);
	transition: 0.4s;
}

#main-buttons-flex-container > .button#ccad {
	border-radius: 0;
	background-color: var(--main-btn-primary);
	border: 1px solid var(--main-btn-primary);
	color: var(--main-btn-secundary);
	transition: 0.4s;
}

#main-buttons-flex-container > .button#hf:hover,
#main-buttons-flex-container > .button#ccad:hover {
	background: var(--main-btn-secundary);
	color: var(--main-btn-primary);
	border: none;
}

#main-buttons-flex-container > .button#tutorial {
	border-radius: 0;
	background-color: var(--main-btn-secundary);
	border: 1px solid var(--main-btn-primary);
	transition: 0.4s;
}

.buttons-flex-container .button.demo {
	border-radius: 0;
	background: linear-gradient(45deg, purple 0%, rgb(242, 202, 242) 60%, white 100%);
	background-size: 200% 200%;
    background-position: right bottom;
	transition: 0.5s;
}

.buttons-flex-container .button.demo:hover {
	background-position: left bottom;
	color: white;
}

.buttons-flex-container .button.tuto {
	border-radius: 0;
	background: linear-gradient(45deg, green 0%, rgb(189, 223, 189) 60%, white 100%);
	background-size: 200% 200%;
    background-position: right bottom;
	transition: 0.5s;
}

.buttons-flex-container .button.tuto:hover {
	background-position: left bottom;
	color: white;
}

.buttons-flex-container .button.manual {
	border-radius: 0;
	background: linear-gradient(45deg, orange 0%,rgb(225, 219, 208) 60%, white 100%);
	background-size: 200% 200%;
    background-position: right bottom;
	transition: 0.5s;
}

.buttons-flex-container .button.manual:hover {
	background-position: left bottom;
	color: white;
}

/* Media queries */

@media only screen and (max-width: 769px) {
    button#translate  {
        width: 100%;
    }
}