@font-face {
	font-family: "Jost";
	src: url("/fonts/jost-latin.woff2") format("woff2");
	font-weight: 300 500;
	font-display: swap;
}
@font-face {
	font-family: "Fraunces";
	src: url("/fonts/fraunces-latin.woff2") format("woff2");
	font-style: normal;
	font-weight: 300 600;
	font-display: swap;
}
@font-face {
	font-family: "Fraunces";
	src: url("/fonts/fraunces-italic-latin.woff2") format("woff2");
	font-style: italic;
	font-weight: 300 600;
	font-display: swap;
}

@font-face {
	font-family: "Vazirmatn";
	src: url("/fonts/Vazirmatn-Regular.woff2") format("woff2");
	font-weight: 400;
	font-display: swap;
}

:root {
	--paper: #fbfaf8;
	--ink: #16191a;
	--muted: #63696b;
	--line: #e4e1dc;
	--brand: #016c7e;
	--night: #0f1d20;
	--sans: "Jost", "Helvetica Neue", Arial, sans-serif;
	--serif: "Fraunces", Georgia, serif;
	--gutter: clamp(20px, 4vw, 56px);
	--header: 72px;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}
html {
	scroll-behavior: smooth;
	scroll-padding-top: var(--header);
}
body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font: 300 18px / 1.7 var(--sans);
	-webkit-font-smoothing: antialiased;
}
img {
	display: block;
	max-width: 100%;
	height: auto;
}
a {
	color: inherit;
	text-decoration: none;
}
h1,
h2,
h3 {
	margin: 0;
	font-weight: 400;
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip-path: inset(50%);
	white-space: nowrap;
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	z-index: 20;
	height: var(--header);
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 var(--gutter);
	border-bottom: 1px solid var(--line);
}
.site-header::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	background: color-mix(in srgb, var(--paper) 92%, transparent);
	backdrop-filter: blur(10px);
}
.brand img {
	width: 130px;
	height: auto;
}
.site-nav {
	display: flex;
	gap: clamp(18px, 2.6vw, 40px);
	font-size: 13px;
	font-weight: 400;
	letter-spacing: 0.16em;
	text-transform: uppercase;
}
.site-nav a {
	color: var(--muted);
	transition: color 0.2s;
}
.site-nav a:hover {
	color: var(--brand);
}
.nav-fa {
	font-family: "Vazirmatn", var(--sans);
	letter-spacing: 0;
	font-size: 15px;
}
.nav-toggle {
	display: none;
	position: relative;
	z-index: 2;
	width: 44px;
	height: 44px;
	margin-right: -10px;
	padding: 0;
	background: none;
	border: 0;
	cursor: pointer;
}
.nav-toggle span {
	position: absolute;
	left: 10px;
	width: 24px;
	height: 1.5px;
	background: var(--ink);
	transition:
		transform 0.35s ease,
		opacity 0.2s ease;
}
.nav-toggle span:nth-child(1) {
	top: 15px;
}
.nav-toggle span:nth-child(2) {
	top: 21px;
}
.nav-toggle span:nth-child(3) {
	top: 27px;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
	transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
	opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
	transform: translateY(-6px) rotate(-45deg);
}
.brand {
	position: relative;
	z-index: 2;
}

/* Shared */
.section {
	padding: clamp(80px, 12vw, 160px) var(--gutter);
}
.section-title {
	font-size: 14px;
	font-weight: 400;
	letter-spacing: 0.32em;
	text-transform: uppercase;
	color: var(--brand);
	margin-bottom: 40px;
}
.category,
.eyebrow {
	font-family: var(--serif);
	font-style: italic;
	font-size: 17px;
	color: var(--muted);
	margin: 0;
}

.label {
	display: block;
	font: italic 400 15px / 1.4 var(--serif);
	letter-spacing: 0;
	text-transform: none;
	color: var(--muted);
}

.lede {
	margin: 0;
	font-family: var(--serif);
	font-weight: 300;
	font-size: clamp(21px, 2.5vw, 31px);
	line-height: 1.55;
}
.back {
	display: inline-block;
	margin-bottom: 32px;
	font-size: 13px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--muted);
}
.not-found {
	min-height: 60vh;
	text-align: center;
}

/* Footer */
.site-footer {
	background: var(--ink);
	color: #c9cdce;
	padding: 80px var(--gutter) 40px;
	text-align: center;
}
.footer-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 32px;
	max-width: 1000px;
	margin: 0 auto 48px;
}
.footer-grid p {
	margin: 0;
}
.site-footer .label {
	color: #8a9193;
}
.social {
	list-style: none;
	display: flex;
	justify-content: center;
	gap: 32px;
	margin: 0 0 48px;
	padding: 0;
	font-size: 13px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
}
.social a:hover,
.footer-grid a:hover {
	color: #fff;
}
.copyright {
	margin: 0;
	font-size: 12px;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: #8a9193;
}

@media (max-width: 860px) {
	.nav-toggle {
		display: block;
	}
	.site-nav {
		position: fixed;
		inset: 0;
		z-index: 1;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		gap: 8px;
		background: var(--paper);
		font-size: 20px;
		letter-spacing: 0.22em;
		opacity: 0;
		visibility: hidden;
		transition:
			opacity 0.35s ease,
			visibility 0s linear 0.35s;
	}
	.site-nav.is-open {
		opacity: 1;
		visibility: visible;
		transition: opacity 0.35s ease;
	}
	.site-nav a {
		padding: 14px 0;
		color: var(--ink);
	}
	.site-nav .nav-fa {
		font-size: 22px;
	}
	.footer-grid {
		grid-template-columns: 1fr;
	}
}