:root {
	--csi-ink: #08232d;
	--csi-ink-soft: #24404a;
	--csi-marine: #06354b;
	--csi-deep: #031a24;
	--csi-teal: #0c6f74;
	--csi-eucalyptus: #7ea887;
	--csi-gold: #e4bd58;
	--csi-coral: #d76d4a;
	--csi-paper: #f7f3ea;
	--csi-white: #fffdf7;
	--csi-line: rgba(8, 35, 45, 0.16);
	--csi-shadow: 0 24px 60px rgba(3, 26, 36, 0.22);
	--csi-serif: "Fraunces", Georgia, serif;
	--csi-sans: "IBM Plex Sans", "Helvetica Neue", sans-serif;
	--csi-hero-shift: 0px;
}

html {
	scroll-behavior: smooth;
}

body.csi-landing-body {
	margin: 0;
	background: var(--csi-paper);
	color: var(--csi-ink);
	font-family: var(--csi-sans);
	font-size: 17px;
	line-height: 1.6;
	letter-spacing: 0;
}

body.csi-landing-body.admin-bar .csi-topbar {
	top: 32px;
}

.csi-landing,
.csi-landing * {
	box-sizing: border-box;
}

.csi-landing a {
	color: inherit;
}

.csi-hero {
	position: relative;
	display: grid;
	min-height: 92vh;
	min-height: 92svh;
	overflow: hidden;
	isolation: isolate;
	background: var(--csi-deep);
	color: var(--csi-white);
}

.csi-hero::before,
.csi-hero::after {
	position: absolute;
	inset: 0;
	content: "";
	z-index: -2;
}

.csi-hero::before {
	background-image:
		linear-gradient(90deg, rgba(3, 26, 36, 0.97) 0%, rgba(5, 44, 61, 0.9) 30%, rgba(5, 44, 61, 0.5) 58%, rgba(3, 26, 36, 0.15) 100%),
		linear-gradient(180deg, rgba(3, 26, 36, 0.28) 0%, rgba(3, 26, 36, 0.28) 65%, rgba(3, 26, 36, 0.7) 100%),
		url("csi-hero.webp");
	background-position: center;
	background-repeat: no-repeat;
	background-size: cover;
	transform: translate3d(0, var(--csi-hero-shift), 0) scale(1.035);
	animation: csiHeroBreathe 1800ms ease-out both;
}

.csi-hero::after {
	z-index: -1;
	background:
		radial-gradient(circle at 12% 24%, rgba(126, 168, 135, 0.28), transparent 28%),
		linear-gradient(135deg, rgba(228, 189, 88, 0.18), transparent 44%);
	background-repeat: no-repeat;
	mix-blend-mode: screen;
	opacity: 0.7;
}

.csi-hero__grain {
	position: absolute;
	inset: 0;
	z-index: -1;
	opacity: 0.13;
	background-image:
		linear-gradient(115deg, transparent 0 18%, rgba(255, 253, 247, 0.18) 18.2%, transparent 18.6%),
		linear-gradient(68deg, transparent 0 70%, rgba(228, 189, 88, 0.18) 70.2%, transparent 70.6%);
	background-repeat: no-repeat;
	background-size: 290px 290px, 420px 420px;
	pointer-events: none;
}

.csi-topbar {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 10;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	padding: 24px 44px;
	color: var(--csi-white);
	transition: background-color 240ms ease, padding 240ms ease, box-shadow 240ms ease;
}

.csi-topbar.is-scrolled {
	padding-top: 14px;
	padding-bottom: 14px;
	background: rgba(3, 26, 36, 0.82);
	box-shadow: 0 16px 36px rgba(3, 26, 36, 0.22);
	backdrop-filter: blur(18px);
}

.csi-wordmark {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	max-width: 360px;
	font-family: var(--csi-serif);
	font-size: 19px;
	font-weight: 650;
	line-height: 1.02;
	text-decoration: none;
}

.csi-wordmark__mark {
	display: block;
	width: 46px;
	height: 46px;
	flex: 0 0 46px;
	filter: drop-shadow(0 3px 8px rgba(3, 26, 36, 0.26));
}

.csi-wordmark__text {
	display: inline-flex;
	flex-direction: column;
}

.csi-topbar__cta {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 auto;
	min-height: 46px;
	padding: 0 20px;
	border: 1px solid rgba(255, 253, 247, 0.42);
	border-radius: 999px;
	background: rgba(255, 253, 247, 0.1);
	color: var(--csi-white);
	font-size: 15px;
	font-weight: 700;
	text-decoration: none;
	white-space: nowrap;
	backdrop-filter: blur(14px);
}

.csi-hero__inner {
	width: min(1180px, calc(100% - 72px));
	margin: auto;
	padding: 154px 0 96px;
}

.csi-hero h1 {
	max-width: 720px;
	margin: 0;
	font-family: var(--csi-serif);
	font-size: 72px;
	font-weight: 650;
	line-height: 0.98;
	letter-spacing: 0;
}

.csi-hero__headline {
	max-width: 720px;
	margin: 30px 0 0;
	font-family: var(--csi-serif);
	font-size: 31px;
	font-weight: 500;
	line-height: 1.16;
	letter-spacing: 0;
	color: #f5ead1;
}

.csi-hero__support {
	max-width: 620px;
	margin: 22px 0 0;
	color: rgba(255, 253, 247, 0.84);
	font-size: 19px;
	line-height: 1.62;
}

.csi-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 34px;
}

.csi-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 52px;
	padding: 0 23px;
	border-radius: 999px;
	font-size: 16px;
	font-weight: 700;
	text-decoration: none;
	transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.csi-button:hover,
.csi-button:focus-visible,
.csi-topbar__cta:hover,
.csi-topbar__cta:focus-visible {
	transform: translateY(-2px);
}

.csi-button:focus-visible,
.csi-topbar__cta:focus-visible,
.csi-footer a:focus-visible {
	outline: 3px solid rgba(228, 189, 88, 0.7);
	outline-offset: 4px;
}

.csi-button--primary {
	background: var(--csi-gold);
	color: #182413;
}

.csi-button--quiet {
	border: 1px solid rgba(255, 253, 247, 0.42);
	color: var(--csi-white);
}

.csi-section {
	position: relative;
	padding: 110px 0;
	background: var(--csi-paper);
}

.csi-section::before {
	position: absolute;
	inset: 0;
	content: "";
	pointer-events: none;
	background:
		linear-gradient(115deg, transparent 0 62%, rgba(126, 168, 135, 0.12) 62.2%, transparent 62.8%),
		linear-gradient(68deg, transparent 0 32%, rgba(228, 189, 88, 0.1) 32.2%, transparent 32.7%);
	background-position: 8% 8%, 84% 20%;
	background-repeat: no-repeat;
	background-size: 760px 760px, 680px 680px;
}

.csi-section__inner {
	position: relative;
	display: grid;
	grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
	gap: 82px;
	width: min(1180px, calc(100% - 72px));
	margin: 0 auto;
	align-items: start;
}

.csi-section__inner--stacked {
	display: block;
}

.csi-section__copy {
	max-width: 670px;
}

.csi-section__label {
	margin: 0 0 18px;
	color: var(--csi-teal);
	font-size: 14px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.12em;
}

.csi-section h2 {
	margin: 0;
	font-family: var(--csi-serif);
	font-size: 48px;
	font-weight: 650;
	line-height: 1.08;
	letter-spacing: 0;
	color: var(--csi-ink);
}

.csi-section__copy > p:last-child {
	margin: 24px 0 0;
	color: var(--csi-ink-soft);
	font-size: 19px;
}

.csi-principles {
	display: grid;
	gap: 0;
	border-top: 1px solid var(--csi-line);
}

.csi-principles p,
.csi-fit-lines p {
	display: grid;
	grid-template-columns: 150px 1fr;
	gap: 26px;
	margin: 0;
	padding: 26px 0;
	border-bottom: 1px solid var(--csi-line);
}

.csi-principles strong {
	color: var(--csi-marine);
	font-size: 18px;
}

.csi-principles span,
.csi-fit-lines p {
	color: var(--csi-ink-soft);
}

.csi-section--curriculum {
	background: #e8efe7;
}

.csi-section--curriculum::before {
	background:
		radial-gradient(circle at 84% 8%, rgba(12, 111, 116, 0.14), transparent 34%),
		linear-gradient(115deg, transparent 0 60%, rgba(215, 109, 74, 0.09) 60.2%, transparent 60.7%);
	background-position: right top, 12% 72%;
	background-repeat: no-repeat;
	background-size: auto, 760px 760px;
}

.csi-learning-list {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 0;
	margin: 58px 0 0;
	padding: 0;
	list-style: none;
	counter-reset: csi-learning;
	border-top: 1px solid rgba(8, 35, 45, 0.18);
	border-left: 1px solid rgba(8, 35, 45, 0.18);
}

.csi-learning-list li {
	min-height: 260px;
	padding: 30px;
	border-right: 1px solid rgba(8, 35, 45, 0.18);
	border-bottom: 1px solid rgba(8, 35, 45, 0.18);
	counter-increment: csi-learning;
}

.csi-learning-list li::before {
	display: block;
	margin-bottom: 58px;
	color: var(--csi-coral);
	font-family: var(--csi-serif);
	font-size: 28px;
	content: "0" counter(csi-learning);
}

.csi-learning-list span {
	display: block;
	color: var(--csi-ink);
	font-family: var(--csi-serif);
	font-size: 24px;
	font-weight: 650;
	line-height: 1.12;
}

.csi-learning-list p {
	margin: 18px 0 0;
	color: var(--csi-ink-soft);
}

.csi-section--fit {
	background: var(--csi-white);
}

.csi-fit-lines {
	border-top: 1px solid var(--csi-line);
}

.csi-fit-lines p {
	display: block;
	font-size: 20px;
	line-height: 1.45;
}

.csi-section--founders {
	background: #eef1ed;
}

.csi-section--founders::before {
	background:
		radial-gradient(circle at 14% 18%, rgba(12, 111, 116, 0.1), transparent 32%),
		linear-gradient(115deg, transparent 0 68%, rgba(228, 189, 88, 0.1) 68.2%, transparent 68.7%),
		linear-gradient(68deg, transparent 0 22%, rgba(215, 109, 74, 0.07) 22.2%, transparent 22.8%);
	background-position: left top, 76% 18%, 18% 82%;
	background-repeat: no-repeat;
	background-size: auto, 780px 780px, 620px 620px;
}

.csi-section__inner--founders {
	grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.08fr);
	gap: 76px;
}

.csi-founders {
	border-top: 1px solid rgba(8, 35, 45, 0.18);
}

.csi-founder {
	display: grid;
	grid-template-columns: 132px minmax(0, 1fr);
	gap: 28px;
	align-items: start;
	padding: 30px 0;
	border-bottom: 1px solid rgba(8, 35, 45, 0.18);
}

.csi-founder__portrait {
	overflow: hidden;
	aspect-ratio: 4 / 5;
	border-radius: 6px;
	background: rgba(8, 35, 45, 0.08);
}

.csi-founder__portrait img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
	filter: saturate(0.86) contrast(1.03);
}

.csi-founder--isabel .csi-founder__portrait img {
	object-position: center 34%;
}

.csi-founder--joshua .csi-founder__portrait img {
	object-position: center 36%;
}

.csi-founder__name {
	margin: 0;
	color: var(--csi-ink);
	font-family: var(--csi-serif);
	font-size: 28px;
	font-weight: 650;
	line-height: 1.06;
}

.csi-founder__role {
	margin: 10px 0 0;
	color: var(--csi-marine);
	font-size: 13px;
	font-weight: 700;
	line-height: 1.45;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.csi-founder__role a {
	color: inherit;
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
}

.csi-founder__bio {
	margin: 16px 0 0;
	color: var(--csi-ink-soft);
	font-size: 16px;
	line-height: 1.58;
}

.csi-founder__link {
	display: inline-flex;
	margin-top: 14px;
	color: var(--csi-teal);
	font-size: 15px;
	font-weight: 700;
	text-decoration-thickness: 1px;
	text-underline-offset: 4px;
}

.csi-section--register {
	padding-bottom: 118px;
	background:
		linear-gradient(180deg, rgba(3, 26, 36, 0.02), rgba(3, 26, 36, 0.08)),
		var(--csi-paper);
}

.csi-section__inner--form {
	grid-template-columns: minmax(0, 0.78fr) minmax(360px, 0.92fr);
	align-items: start;
}

.csi-form-shell {
	padding: 34px;
	border: 1px solid rgba(8, 35, 45, 0.12);
	border-radius: 8px;
	background: rgba(255, 253, 247, 0.9);
	box-shadow: var(--csi-shadow);
}

.csi-form-shell .frm_forms,
.csi-form-shell .frm_form_fields,
.csi-form-shell fieldset {
	margin: 0;
	padding: 0;
	border: 0;
}

.csi-form-shell .frm_fields_container {
	display: grid;
	gap: 18px;
}

.csi-form-shell .frm_form_field {
	margin: 0;
}

.csi-form-shell label,
.csi-form-shell .frm_primary_label {
	display: block;
	margin: 0 0 8px;
	color: var(--csi-ink);
	font-size: 15px;
	font-weight: 700;
}

.csi-form-shell input[type="text"],
.csi-form-shell input[type="email"],
.csi-form-shell textarea,
.csi-form-shell select {
	width: 100%;
	min-height: 50px;
	padding: 13px 14px;
	border: 1px solid rgba(8, 35, 45, 0.22);
	border-radius: 6px;
	background: var(--csi-white);
	color: var(--csi-ink);
	font: 500 16px/1.4 var(--csi-sans);
	box-shadow: none;
	transition: border-color 160ms ease, box-shadow 160ms ease;
}

.csi-form-shell textarea {
	min-height: 124px;
	resize: vertical;
}

.csi-form-shell input:focus,
.csi-form-shell textarea:focus,
.csi-form-shell select:focus {
	border-color: var(--csi-teal);
	outline: 0;
	box-shadow: 0 0 0 4px rgba(12, 111, 116, 0.14);
}

.csi-form-shell .frm_required,
.csi-form-shell .frm_error {
	color: #a23d26;
}

.csi-form-shell .frm_button_submit,
.csi-form-shell .frm_submit button,
.csi-form-shell button[type="submit"],
.csi-form-shell input[type="submit"] {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 52px;
	margin-top: 6px;
	padding: 0 24px;
	border: 0 !important;
	border-radius: 999px !important;
	background: var(--csi-marine) !important;
	color: var(--csi-white) !important;
	font: 700 16px/1 var(--csi-sans) !important;
	cursor: pointer;
	transition: transform 180ms ease, background-color 180ms ease;
}

.csi-form-shell .frm_button_submit:hover,
.csi-form-shell .frm_submit button:hover,
.csi-form-shell button[type="submit"]:hover,
.csi-form-shell input[type="submit"]:hover {
	transform: translateY(-2px);
	background: var(--csi-teal) !important;
}

.csi-form-shell .frm_message {
	padding: 18px 20px;
	border-radius: 8px;
	background: #e3efe4;
	color: #123624;
}

.csi-form-note,
.csi-form-privacy {
	margin: 16px 0 0;
	color: rgba(36, 64, 74, 0.82);
	font-size: 14px;
	line-height: 1.5;
}

.csi-footer {
	display: flex;
	justify-content: space-between;
	gap: 24px;
	padding: 30px 44px;
	background: var(--csi-deep);
	color: rgba(255, 253, 247, 0.82);
	font-size: 15px;
}

.csi-footer p {
	margin: 0;
	font-family: var(--csi-serif);
	font-weight: 650;
}

.csi-footer a {
	text-decoration: none;
}

.csi-reveal {
	opacity: 0;
	transform: translateY(20px);
	transition: opacity 760ms ease, transform 760ms ease;
}

.csi-reveal.is-visible,
.csi-landing.is-loaded .csi-hero__inner {
	opacity: 1;
	transform: translateY(0);
}

@keyframes csiHeroBreathe {
	from {
		transform: translate3d(0, 14px, 0) scale(1.07);
		filter: saturate(0.92);
	}
	to {
		transform: translate3d(0, var(--csi-hero-shift), 0) scale(1.035);
		filter: saturate(1);
	}
}

@media (max-width: 980px) {
	.csi-topbar {
		padding: 20px 26px;
	}

	.csi-hero {
		min-height: 90vh;
		min-height: 90svh;
	}

	.csi-hero::before {
		background-image:
			linear-gradient(90deg, rgba(3, 26, 36, 0.97) 0%, rgba(5, 44, 61, 0.78) 48%, rgba(3, 26, 36, 0.22) 100%),
			linear-gradient(180deg, rgba(3, 26, 36, 0.1) 0%, rgba(3, 26, 36, 0.74) 100%),
			url("csi-hero.webp");
		background-position: 62% center;
	}

	.csi-hero__inner,
	.csi-section__inner {
		width: min(100% - 44px, 720px);
	}

	.csi-hero h1 {
		font-size: 54px;
	}

	.csi-hero__headline {
		font-size: 27px;
	}

	.csi-section {
		padding: 82px 0;
	}

	.csi-section__inner,
	.csi-section__inner--founders,
	.csi-section__inner--form {
		grid-template-columns: 1fr;
		gap: 42px;
	}

	.csi-section h2 {
		font-size: 39px;
	}

	.csi-learning-list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.csi-founder {
		grid-template-columns: 118px minmax(0, 1fr);
		gap: 24px;
	}
}

@media (max-width: 640px) {
	body.csi-landing-body.admin-bar .csi-topbar {
		top: 46px;
	}

	.csi-topbar {
		gap: 12px;
		padding: 16px 18px;
	}

	.csi-topbar.is-scrolled {
		padding-top: 12px;
		padding-bottom: 12px;
	}

	.csi-wordmark {
		gap: 9px;
		max-width: 230px;
		font-size: 14px;
	}

	.csi-wordmark__mark {
		width: 40px;
		height: 40px;
		flex-basis: 40px;
	}

	.csi-topbar__cta {
		min-height: 38px;
		padding: 0 12px;
		font-size: 13px;
	}

	.csi-hero {
		min-height: 88vh;
		min-height: 88svh;
	}

	.csi-hero::before {
		background-image:
			linear-gradient(180deg, rgba(3, 26, 36, 0.68) 0%, rgba(3, 26, 36, 0.84) 42%, rgba(3, 26, 36, 0.95) 100%),
			url("csi-hero.webp");
		background-position: 64% center;
	}

	.csi-hero__inner,
	.csi-section__inner {
		width: calc(100% - 34px);
	}

	.csi-hero__inner {
		padding-top: 126px;
		padding-bottom: 54px;
	}

	.csi-hero h1 {
		font-size: 43px;
	}

	.csi-hero__headline {
		margin-top: 24px;
		font-size: 24px;
	}

	.csi-hero__support {
		font-size: 17px;
	}

	.csi-actions {
		display: grid;
		gap: 12px;
	}

	.csi-button {
		width: 100%;
	}

	.csi-section {
		padding: 68px 0;
	}

	.csi-section h2 {
		font-size: 34px;
	}

	.csi-section__copy > p:last-child {
		font-size: 17px;
	}

	.csi-principles p {
		grid-template-columns: 1fr;
		gap: 8px;
	}

	.csi-learning-list {
		grid-template-columns: 1fr;
		margin-top: 42px;
	}

	.csi-learning-list li {
		min-height: 0;
		padding: 24px;
	}

	.csi-learning-list li::before {
		margin-bottom: 32px;
	}

	.csi-founder {
		grid-template-columns: 1fr;
		gap: 18px;
		padding: 28px 0;
	}

	.csi-founder__portrait {
		width: min(150px, 48vw);
	}

	.csi-founder__name {
		font-size: 25px;
	}

	.csi-founder__bio {
		font-size: 15px;
	}

	.csi-form-shell {
		padding: 22px;
	}

	.csi-form-shell .frm_button_submit,
	.csi-form-shell .frm_submit button,
	.csi-form-shell button[type="submit"],
	.csi-form-shell input[type="submit"] {
		width: 100% !important;
	}

	.csi-footer {
		display: grid;
		padding: 26px 18px;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	.csi-hero::before,
	.csi-reveal,
	.csi-button,
	.csi-topbar__cta,
	.csi-form-shell .frm_button_submit,
	.csi-form-shell button[type="submit"],
	.csi-form-shell input[type="submit"] {
		animation: none;
		transition: none;
		transform: none;
	}

	.csi-reveal {
		opacity: 1;
	}
}