:root {
	--body-font: "DM Sans", sans-serif;
	--heading-font: "Source Serif 4", Georgia, serif;

	--colour-text: #1d252c;
	--colour-muted: #63707a;
	--colour-border: #dde3e7;
	--colour-soft: #f4f7f8;
	--colour-primary: #176b87;
	--colour-primary-dark: #105269;
	--colour-dark: #172127;
	--colour-white: #ffffff;

	--section-padding: 7rem;
	--border-radius: 0.5rem;
	--transition: 180ms ease;
}

html,
body {
	max-width: 100%;
	overflow-x: hidden;
}

html {
	scroll-behaviour: smooth;
}

body {
	color: var(--colour-text);
	background: var(--colour-white);
	font-family: var(--body-font);
	font-size: 1rem;
	line-height: 1.75;
}

img {
	display: block;
	max-width: 100%;
}

a {
	color: var(--colour-primary);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

a:hover {
	color: var(--colour-primary-dark);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	color: var(--colour-dark);
	font-family: var(--heading-font);
	font-weight: 700;
	line-height: 1.08;
	letter-spacing: -0.025em;
}

h1 {
	max-width: 760px;
	font-size: clamp(3.25rem, 7vw, 6.5rem);
}

h2 {
	font-size: clamp(2.5rem, 5vw, 4.4rem);
}

h3 {
	font-size: 1.65rem;
}

p:last-child {
	margin-bottom: 0;
}

.btn {
	border-radius: 0.2rem;
	font-weight: 600;
	padding: 0.8rem 1.35rem;
}

.btn-lg {
	padding: 1rem 1.6rem;
	font-size: 1rem;
}

.btn-primary {
	background: var(--colour-primary);
	border-color: var(--colour-primary);
}

.btn-primary:hover,
.btn-primary:focus {
	background: var(--colour-primary-dark);
	border-color: var(--colour-primary-dark);
}

.btn-dark {
	background: var(--colour-dark);
	border-color: var(--colour-dark);
}

.form-control,
.form-select {
	min-height: 3.25rem;
	border-radius: 0.2rem;
	border-color: #cdd5da;
}

textarea.form-control {
	min-height: auto;
}

.form-control:focus,
.form-select:focus {
	border-color: var(--colour-primary);
	box-shadow: 0 0 0 0.2rem rgba(23, 107, 135, 0.16);
}

.form-label {
	font-weight: 600;
}


/* Shared */

.section-padding {
	padding-top: var(--section-padding);
	padding-bottom: var(--section-padding);
}

.bg-soft {
	background: var(--colour-soft);
}

.section-kicker {
	margin-bottom: 1.25rem;
	color: var(--colour-primary);
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.13em;
	text-transform: uppercase;
}

.section-kicker-light {
	color: #a9d9e8;
}

.section-introduction {
	margin-top: 1.5rem;
	color: var(--colour-muted);
	font-size: 1.15rem;
}

.text-link {
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	font-weight: 700;
	text-decoration: none;
}

.text-link i {
	transition: transform var(--transition);
}

.text-link:hover i {
	transform: translateX(0.25rem);
}


/* Header */

.site-header {
	position: relative;
	z-index: 100;
	background: var(--colour-white);
}

.navbar {
	padding-top: 1.2rem;
	padding-bottom: 1.2rem;
}

.navbar-brand {
	display: flex;
	flex-direction: column;
	line-height: 1.15;
	text-decoration: none;
}

.brand-name {
	color: var(--colour-dark);
	font-family: var(--heading-font);
	font-size: 1.75rem;
	font-weight: 700;
	letter-spacing: -0.03em;
}

.brand-description {
	margin-top: 0.2rem;
	color: var(--colour-muted);
	font-size: 0.7rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.navbar-nav {
	gap: 0.4rem;
}

.nav-link {
	color: var(--colour-text);
	font-size: 0.95rem;
	font-weight: 600;
}

.nav-link:hover,
.nav-link:focus {
	color: var(--colour-primary);
}


/* Hero */

.hero-section {
	overflow: hidden;
	padding: 4rem 0 0;
	background:
		linear-gradient(
			90deg,
			var(--colour-white) 0%,
			var(--colour-white) 63%,
			var(--colour-soft) 63%,
			var(--colour-soft) 100%
		);
}

.hero-introduction {
	max-width: 650px;
	margin-top: 1.75rem;
	color: var(--colour-muted);
	font-size: clamp(1.15rem, 2vw, 1.35rem);
	line-height: 1.65;
}

.hero-image {
	position: relative;
	padding-left: 2rem;
}

.hero-image img {
	width: 100%;
	max-height: 760px;
	object-fit: cover;
	object-position: centre top;
}


/* Credibility */

.credibility-section {
	padding: 2.75rem 0;
	background: var(--colour-white);
}

.credibility-item {
	padding-right: 1.5rem;
}

.credibility-item strong,
.credibility-item span {
	display: block;
}

.credibility-item strong {
	margin-bottom: 0.35rem;
	color: var(--colour-dark);
	font-size: 1rem;
}

.credibility-item span {
	color: var(--colour-muted);
	font-size: 0.88rem;
	line-height: 1.5;
}


/* Services */

.service-card {
	padding: 2.25rem;
	border: 1px solid var(--colour-border);
	background: var(--colour-white);
	transition:
		transform var(--transition),
		box-shadow var(--transition),
		border-color var(--transition);
}

.service-card:hover {
	transform: translateY(-4px);
	border-color: #c7d2d8;
	box-shadow: 0 1.2rem 2.4rem rgba(23, 33, 39, 0.08);
}

.service-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 3rem;
	height: 3rem;
	margin-bottom: 2rem;
	background: var(--colour-soft);
	color: var(--colour-primary);
	font-size: 1.25rem;
}

.service-card h3 {
	margin-bottom: 1rem;
}

.service-card p {
	color: var(--colour-muted);
}

.service-card a {
	display: inline-block;
	margin-top: 0.75rem;
	font-weight: 700;
	text-decoration: none;
}


/* Pathways */

.pathway-item {
	display: flex;
	gap: 1.5rem;
	height: 100%;
	padding: 2rem 0;
	border-top: 1px solid var(--colour-border);
}

.pathway-number {
	flex: 0 0 auto;
	color: var(--colour-primary);
	font-family: var(--heading-font);
	font-size: 1.3rem;
	font-weight: 700;
}

.pathway-item h3 {
	margin-bottom: 0.75rem;
	font-size: 1.5rem;
}

.pathway-item p {
	color: var(--colour-muted);
}


/* Books */

.book-item {
	display: block;
	color: inherit;
	text-decoration: none;
}

.book-item img {
	width: 100%;
	aspect-ratio: 2 / 3;
	object-fit: cover;
	box-shadow: 0 1rem 2rem rgba(23, 33, 39, 0.12);
	transition:
		transform var(--transition),
		box-shadow var(--transition);
}

.book-item:hover img {
	transform: translateY(-5px);
	box-shadow: 0 1.4rem 2.8rem rgba(23, 33, 39, 0.18);
}

.book-item h3 {
	margin-top: 1.5rem;
	margin-bottom: 0.45rem;
	font-size: 1.35rem;
}

.book-item p {
	color: var(--colour-muted);
	font-size: 0.9rem;
}


/* Image break */

.image-break-section img {
	width: 100%;
	max-height: 720px;
	object-fit: cover;
}


/* Case studies */

.case-study-card img {
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
	transition: opacity var(--transition);
}

.case-study-card img:hover {
	opacity: 0.92;
}

.case-study-content {
	padding-top: 1.75rem;
}

.case-study-type,
.guide-category {
	margin-bottom: 0.65rem;
	color: var(--colour-primary);
	font-size: 0.76rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.case-study-content h3 {
	margin-bottom: 1rem;
	font-size: clamp(1.65rem, 3vw, 2.35rem);
}

.case-study-content h3 a {
	color: var(--colour-dark);
	text-decoration: none;
}

.case-study-content h3 a:hover {
	color: var(--colour-primary);
}

.case-study-content p {
	color: var(--colour-muted);
}


/* Testimonial */

.testimonial-section {
	padding: 7rem 0;
	background: var(--colour-dark);
	color: var(--colour-white);
}

.testimonial-icon {
	display: inline-block;
	margin-bottom: 1.5rem;
	color: #a9d9e8;
	font-size: 3rem;
}

.testimonial-section blockquote {
	margin-bottom: 2rem;
	color: var(--colour-white);
	font-family: var(--heading-font);
	font-size: clamp(2rem, 4vw, 3.8rem);
	font-weight: 600;
	line-height: 1.2;
}

.testimonial-author {
	font-weight: 700;
}

.testimonial-author span {
	display: block;
	margin-top: 0.25rem;
	color: #a9b4ba;
	font-size: 0.85rem;
	font-weight: 500;
}


/* Guides */

.guide-card {
	background: var(--colour-white);
	border: 1px solid var(--colour-border);
}

.guide-card img {
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
}

.guide-card-content {
	padding: 1.75rem;
}

.guide-card h3 {
	font-size: 1.55rem;
}

.guide-card h3 a {
	color: var(--colour-dark);
	text-decoration: none;
}

.guide-card h3 a:hover {
	color: var(--colour-primary);
}

.guide-card p {
	color: var(--colour-muted);
}


/* About */

.about-image-grid {
	position: relative;
	padding-right: 4rem;
	padding-bottom: 4rem;
}

.about-image-main {
	width: 100%;
	aspect-ratio: 4 / 5;
	object-fit: cover;
}

.about-image-secondary {
	position: absolute;
	right: 0;
	bottom: 0;
	width: 46%;
	aspect-ratio: 1;
	object-fit: cover;
	border: 0.7rem solid var(--colour-white);
}


/* Contact */

.contact-section {
	padding: 7rem 0;
	background: var(--colour-primary-dark);
	color: var(--colour-white);
}

.contact-section h2 {
	color: var(--colour-white);
}

.contact-section p {
	color: rgba(255, 255, 255, 0.82);
}

.contact-details {
	margin-top: 2rem;
}

.contact-details p {
	display: flex;
	align-items: center;
	gap: 0.8rem;
}

.contact-details a {
	color: var(--colour-white);
}

.contact-form {
	padding: 2.5rem;
	background: var(--colour-white);
	color: var(--colour-text);
}


/* Footer */

.site-footer {
	padding: 4rem 0 2rem;
	background: #10171b;
	color: #aeb8bd;
}

.footer-brand {
	display: inline-block;
	margin-bottom: 0.5rem;
	color: var(--colour-white);
	font-family: var(--heading-font);
	font-size: 1.7rem;
	font-weight: 700;
	text-decoration: none;
}

.footer-navigation {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem 1.25rem;
}

.footer-navigation a,
.site-footer .small a {
	color: #c4cdd1;
	text-decoration: none;
}

.footer-navigation a:hover,
.site-footer .small a:hover {
	color: var(--colour-white);
}

.social-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.8rem;
	height: 2.8rem;
	margin-left: 0.4rem;
	border: 1px solid #36434a;
	color: var(--colour-white);
	font-size: 1.05rem;
	text-decoration: none;
}

.social-link:hover {
	border-color: var(--colour-white);
	color: var(--colour-white);
}

.site-footer hr {
	margin: 3rem 0 2rem;
	border-color: #354047;
}

.site-footer .small a {
	margin-left: 1rem;
}


/* Responsive */

@media (max-width: 991.98px) {
	:root {
		--section-padding: 5rem;
	}

	.navbar-collapse {
		padding-top: 1.5rem;
		padding-bottom: 0.5rem;
	}

	.navbar-nav {
		align-items: stretch !important;
	}

	.hero-section {
		padding-top: 5rem;
		background: var(--colour-white);
	}

	.hero-image {
		padding-left: 0;
		background: var(--colour-soft);
	}

	.hero-image img {
		max-height: 680px;
	}

	.contact-form {
		padding: 2rem;
	}
}

@media (max-width: 767.98px) {
	h1 {
		font-size: clamp(3rem, 15vw, 4.5rem);
	}

	h2 {
		font-size: clamp(2.3rem, 10vw, 3.3rem);
	}

	.hero-section {
		padding-top: 3.5rem;
	}

	.credibility-section {
		padding: 2rem 0;
	}

	.credibility-item {
		padding-right: 0;
	}

	.service-card {
		padding: 1.75rem;
	}

	.about-image-grid {
		padding-right: 0;
		padding-bottom: 0;
	}

	.about-image-secondary {
		position: static;
		width: 55%;
		margin-top: -3rem;
		margin-left: auto;
		border-right: 0;
	}

	.contact-form {
		padding: 1.5rem;
	}

	.site-footer .small a {
		display: inline-block;
		margin-top: 0.75rem;
		margin-right: 1rem;
		margin-left: 0;
	}
}

.book-page-cover {
	width: 100%;
	box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.14);
}

.book-page-author {
	font-size: 1.125rem;
	color: var(--bs-secondary-color);
	margin-bottom: 1.5rem;
}

.book-page-services {
	margin-top: 2rem;
}

.service-badge {
	display: inline-block;
	padding: 0.45rem 0.75rem;
	border: 1px solid rgba(0, 0, 0, 0.12);
	border-radius: 999px;
	text-decoration: none;
	font-size: 0.875rem;
}

.service-badge:hover {
	border-color: currentColor;
}