main.css

/* RESET RULES
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:root {
	--white: #fff;
	--black: #000;
	--dark-green: #007c89;
	--dark-green-hover: #004e56;
	--red: #b50027;
	--bounceEasing: cubic-bezier(0.51, 0.92, 0.24, 1.15);
}

* {
	padding: 0;
	margin: 0;
}

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

button {
	cursor: pointer;
	background: transparent;
	border: none;
	outline: none;
	font-size: inherit;
}

body {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100vh;
	font: 16px/1.5 "Poppins", sans-serif;
}

.notification {
	position: fixed;
	left: 10px;
	bottom: 10px;
	padding: 10px;
	max-width: 300px;
	font-size: 14px;
	color: var(--white);
	background: var(--dark-green);
}

.notification a {
	text-decoration: underline;
}

.open-modal {
	font-weight: bold;
	color: var(--white);
	background: var(--dark-green);
	padding: 0.75rem 1.75rem;
	border-radius: 38px;
	transition: background 0.2s ease-in-out;
}

.open-modal:hover {
	background: var(--dark-green-hover);
}

/* MODAL
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.modal {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 1rem;
	background: rgba(0, 0, 0, 0.75);
	cursor: pointer;
	visibility: hidden;
	opacity: 0;
	transition: all 0.35s ease-in;
	z-index: 1;
}

.modal.is-visible {
	visibility: visible;
	opacity: 1;
}

.modal-dialog {
	position: relative;
	max-width: 800px;
	max-height: 90vh;
	padding: 20px;
	border-radius: 5px;
	background: var(--white);
	overflow: auto;
	cursor: default;
}

.modal-dialog > * {
	padding: 1rem;
}

.modal-header {
	text-align: center;
}

.modal-header h2 {
	font-size: 40px;
	margin-bottom: 20px;
}

.modal-header h2 span {
	display: block;
	font-size: 20px;
	line-height: 1;
	font-weight: normal;
}

.modal-header .close-modal {
	position: absolute;
	top: 20px;
	right: 20px;
	font-size: 1.5rem;
}

/* ANIMATIONS
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[data-animation] .modal-dialog {
	opacity: 0;
	transition: all 0.5s var(--bounceEasing);
}

[data-animation].is-visible .modal-dialog {
	opacity: 1;
	transition-delay: 0.2s;
}

[data-animation="slideInOutLeft"] .modal-dialog {
	transform: translateX(-100%);
}

[data-animation="slideInOutLeft"].is-visible .modal-dialog {
	transform: none;
}

/* MAILCHIMP
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#mc_embed_signup form {
	margin: 0;
}

#mc_embed_signup .grid {
	display: grid;
	grid-template-columns: 1fr;
	grid-gap: 15px;
	margin-bottom: 15px;
}

#mc_embed_signup .mc-field-group {
	display: block;
	width: 100%;
	min-height: 0;
	padding-bottom: 0;
}

#mc_embed_signup .mc-field-group input {
	box-sizing: border-box;
	border-color: var(--black);
}

#mc_embed_signup .mc-field-group input,
#mc_embed_signup [type="submit"] {
	border-radius: 0;
	height: 40px;
}

#mc_embed_signup .mc-field-group input,
#mc_embed_signup .mc-field-group input::placeholder {
	font-family: inherit;
}

#mc_embed_signup .mc-field-group input::placeholder {
	color: var(--black);
}

#mc_embed_signup [type="submit"] {
	background: var(--dark-green);
	font-weight: bold;
	text-transform: uppercase;
	width: 100%;
	margin-top: 15px;
	transition: background 0.2s ease-in-out;
}

#mc_embed_signup [type="submit"]:hover {
	background: var(--dark-green-hover);
}

#mc_embed_signup #mc-embedded-subscribe-form div.mce_inline_error {
	border-radius: 0;
	color: var(--white);
	border-color: var(--red);
	background: var(--red);
}

#mc_embed_signup div#mce-responses {
	width: 100%;
	padding: 0;
}

#mc_embed_signup #mce-success-response {
	padding: 0;
	margin: 15px 0 0;
}

/* MEDIA QUERIES
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@media (min-width: 700px) {
	#mc_embed_signup {
		width: 600px;
	}

	#mc_embed_signup .grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* FOOTER
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.page-footer {
	position: fixed;
	right: 15px;
	bottom: 20px;
	display: flex;
	align-items: center;
	font-size: 1rem;
	padding: 5px;
}

.page-footer a {
	margin-left: 4px;
}