/*
Theme Name: RSE SA Base
Theme URI: https://rse-sa.com/
Author: RSE SA
Description: Lightweight RTL theme foundation for the RSE SA project.
Version: 0.2.0
Requires at least: 6.8
Requires PHP: 8.1
Text Domain: rse-sa-base
*/

:root {
	--color-ink: #17212b;
	--color-muted: #5f6c78;
	--color-primary: #145a64;
	--color-primary-dark: #0d434b;
	--color-accent-soft: #e9f4f3;
	--color-surface: #ffffff;
	--color-canvas: #f5f7f8;
	--color-border: #dce3e7;
	--color-notice: #fff8df;
	--color-notice-border: #d7a928;
	--shadow-soft: 0 0.75rem 2.5rem rgba(23, 33, 43, 0.07);
	--radius-small: 0.65rem;
	--radius-medium: 1rem;
	--container: 72rem;
	--font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Arial, sans-serif;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-padding-top: 6rem;
}

body {
	margin: 0;
	background: var(--color-canvas);
	color: var(--color-ink);
	font-family: var(--font-system);
	font-size: 1rem;
	line-height: 1.8;
	text-rendering: optimizeLegibility;
}

img,
svg,
video {
	display: block;
	max-width: 100%;
	height: auto;
}

a {
	color: var(--color-primary);
	text-decoration-thickness: 0.08em;
	text-underline-offset: 0.2em;
}

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

a:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
	outline: 0.2rem solid #116b78;
	outline-offset: 0.2rem;
}

h1,
h2,
h3,
p {
	margin-block-start: 0;
}

h1,
h2,
h3 {
	line-height: 1.35;
	text-wrap: balance;
}

h1 {
	margin-block-end: 1.25rem;
	font-size: clamp(2rem, 5vw, 3.8rem);
	letter-spacing: -0.035em;
}

h2 {
	margin-block-end: 0.8rem;
	font-size: clamp(1.55rem, 3vw, 2.25rem);
}

h3 {
	margin-block-end: 0.6rem;
	font-size: 1.2rem;
}

ul,
ol {
	margin-block-start: 0;
}

.container {
	width: min(calc(100% - 2rem), var(--container));
	margin-inline: auto;
}

.screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.screen-reader-text:focus {
	top: 0.75rem;
	inset-inline-start: 0.75rem;
	z-index: 1000;
	width: auto;
	height: auto;
	padding: 0.75rem 1rem;
	clip: auto;
	background: var(--color-surface);
	color: var(--color-primary-dark);
	font-weight: 700;
}

.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	border-block-end: 1px solid rgba(220, 227, 231, 0.9);
	background: rgba(255, 255, 255, 0.96);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: 4.75rem;
	gap: 1rem;
}

.site-name {
	min-width: 0;
	color: var(--color-ink);
	font-weight: 800;
	line-height: 1.35;
	text-decoration: none;
}

.site-name__short {
	display: none;
}

.navigation-disclosure {
	flex: 0 0 auto;
}

.navigation-disclosure summary {
	padding: 0.55rem 0.8rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-small);
	background: var(--color-surface);
	font-weight: 700;
	cursor: pointer;
	list-style: none;
}

.navigation-disclosure summary::-webkit-details-marker {
	display: none;
}

.primary-navigation {
	position: absolute;
	top: calc(100% + 0.35rem);
	inset-inline: 1rem;
	padding: 0.65rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-medium);
	background: var(--color-surface);
	box-shadow: var(--shadow-soft);
}

.navigation-disclosure:not([open]) .primary-navigation {
	display: none;
}

.primary-menu {
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
	padding: 0;
	margin: 0;
	list-style: none;
}

.primary-menu a {
	display: block;
	padding: 0.65rem 0.8rem;
	border-radius: 0.5rem;
	color: var(--color-ink);
	font-weight: 650;
	text-decoration: none;
}

.primary-menu a:hover,
.primary-menu a:focus-visible {
	background: var(--color-accent-soft);
	color: var(--color-primary-dark);
}

.site-main {
	min-height: 50vh;
}

.home-hero {
	padding-block: clamp(4rem, 10vw, 7.5rem);
	border-block-end: 1px solid var(--color-border);
	background: var(--color-surface);
}

.home-hero__inner {
	max-width: 59rem;
}

.home-hero__summary {
	max-width: 48rem;
	margin-block-end: 1.8rem;
	color: var(--color-muted);
	font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.eyebrow {
	margin-block-end: 0.55rem;
	color: var(--color-primary);
	font-size: 0.88rem;
	font-weight: 800;
	letter-spacing: 0.03em;
}

.button-group {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
}

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 3rem;
	padding: 0.65rem 1.1rem;
	border: 1px solid transparent;
	border-radius: var(--radius-small);
	font-weight: 750;
	line-height: 1.4;
	text-align: center;
	text-decoration: none;
}

.button--primary {
	background: var(--color-primary);
	color: #ffffff;
}

.button--primary:hover {
	background: var(--color-primary-dark);
	color: #ffffff;
}

.button--secondary {
	border-color: var(--color-border);
	background: var(--color-surface);
	color: var(--color-ink);
}

.home-content {
	padding-block: 2rem 5rem;
}

.content-section {
	padding-block: clamp(3.5rem, 8vw, 6rem);
	border-block-end: 1px solid var(--color-border);
	scroll-margin-top: 6rem;
}

.content-section:last-child {
	border-block-end: 0;
}

.section-heading {
	max-width: 48rem;
	margin-block-end: 1.75rem;
}

.section-heading > p:last-child {
	margin-block-end: 0;
	color: var(--color-muted);
	font-size: 1.05rem;
}

.notice {
	padding: clamp(1.15rem, 3vw, 1.6rem);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-medium);
	background: var(--color-surface);
}

.notice--important {
	display: flex;
	margin-block-start: 2rem;
	border-inline-start: 0.35rem solid var(--color-notice-border);
	background: var(--color-notice);
}

.notice h2 {
	font-size: 1.25rem;
}

.notice p:last-child,
.notice ul:last-child {
	margin-block-end: 0;
}

.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
	gap: 1rem;
}

.card {
	min-width: 0;
	padding: clamp(1.2rem, 3vw, 1.6rem);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-medium);
	background: var(--color-surface);
}

.card p:last-of-type {
	color: var(--color-muted);
}

.text-link {
	display: inline-flex;
	gap: 0.35rem;
	font-weight: 750;
}

.steps-list {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 1rem;
	padding: 0;
	list-style: none;
	counter-reset: steps;
}

.steps-list li {
	position: relative;
	min-width: 0;
	padding: 1.35rem;
	padding-block-start: 3.7rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-medium);
	background: var(--color-surface);
	counter-increment: steps;
}

.steps-list li::before {
	position: absolute;
	top: 1rem;
	inset-inline-start: 1.35rem;
	display: grid;
	place-items: center;
	width: 2rem;
	height: 2rem;
	border-radius: 50%;
	background: var(--color-accent-soft);
	color: var(--color-primary-dark);
	font-weight: 800;
	content: counter(steps);
}

.steps-list strong,
.steps-list span {
	display: block;
}

.steps-list span {
	margin-block-start: 0.4rem;
	color: var(--color-muted);
}

.table-wrap {
	overflow-x: auto;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-medium);
	background: var(--color-surface);
}

table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.98rem;
}

th,
td {
	padding: 1rem;
	border-block-end: 1px solid var(--color-border);
	text-align: start;
	vertical-align: top;
}

thead th {
	background: var(--color-accent-soft);
	color: var(--color-primary-dark);
}

tbody tr:last-child > * {
	border-block-end: 0;
}

.check-list {
	padding-inline-start: 1.25rem;
}

.check-list li + li {
	margin-block-start: 0.45rem;
}

.source-list {
	display: grid;
	gap: 0.75rem;
	padding: 0;
	list-style: none;
}

.source-list a {
	display: block;
	padding: 1rem 1.15rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-small);
	background: var(--color-surface);
	font-weight: 700;
}

.faq-list {
	display: grid;
	gap: 0.75rem;
}

.faq-list details {
	border: 1px solid var(--color-border);
	border-radius: var(--radius-small);
	background: var(--color-surface);
}

.faq-list summary {
	padding: 1rem 1.15rem;
	font-weight: 750;
	cursor: pointer;
}

.faq-list details[open] summary {
	border-block-end: 1px solid var(--color-border);
}

.faq-list details p {
	padding: 1rem 1.15rem;
	margin: 0;
	color: var(--color-muted);
}

.planned-pages {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
	gap: 0.75rem;
	padding: 0;
	list-style: none;
}

.planned-pages li {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 1rem;
	border: 1px dashed #bac6cc;
	border-radius: var(--radius-small);
	background: rgba(255, 255, 255, 0.6);
}

.planned-pages span {
	font-weight: 700;
}

.planned-pages small {
	color: var(--color-muted);
	white-space: nowrap;
}

.breadcrumbs {
	margin-block-end: 2rem;
	font-size: 0.95rem;
}

.breadcrumbs ol {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	padding: 0;
	list-style: none;
}

.breadcrumbs li + li::before {
	margin-inline-end: 0.45rem;
	color: var(--color-muted);
	content: "/";
}

.page-shell {
	padding-block: clamp(2.5rem, 7vw, 5rem);
}

.entry,
.post-list {
	max-width: 50rem;
}

.entry__header {
	margin-block-end: 2rem;
}

.entry__content > * + * {
	margin-block-start: 1.25rem;
}

.post-list {
	display: grid;
	gap: 1rem;
}

.site-footer {
	padding-block-start: 3.5rem;
	background: #17252d;
	color: #dce5e8;
}

.site-footer__grid {
	display: grid;
	grid-template-columns: 1.5fr repeat(3, 1fr);
	gap: 2rem;
}

.site-footer__name {
	display: inline-block;
	margin-block-end: 0.8rem;
	color: #ffffff;
	font-weight: 800;
	line-height: 1.45;
	text-decoration: none;
}

.site-footer p {
	color: #b8c6cb;
}

.site-footer__heading {
	margin-block-end: 0.8rem;
	color: #ffffff;
	font-size: 1rem;
}

.footer-links {
	display: grid;
	gap: 0.45rem;
	padding: 0;
	list-style: none;
}

.footer-links a {
	color: #dce5e8;
}

.footer-links--planned {
	color: #9fb0b7;
}

.site-footer__bottom {
	padding-block: 1.25rem;
	margin-block-start: 2.5rem;
	border-block-start: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__bottom p {
	margin: 0;
	font-size: 0.9rem;
}

@media (min-width: 48rem) {
	.navigation-disclosure {
		flex: 1 1 auto;
	}

	.navigation-disclosure summary {
		display: none;
	}

	.navigation-disclosure:not([open]) .primary-navigation,
	.primary-navigation {
		position: static;
		display: block;
		padding: 0;
		border: 0;
		background: transparent;
		box-shadow: none;
	}

	.primary-menu {
		flex-direction: row;
		flex-wrap: wrap;
		justify-content: flex-end;
		align-items: center;
		gap: 0.15rem;
	}

	.primary-menu a {
		padding: 0.5rem 0.65rem;
		font-size: 0.9rem;
	}
}

@media (max-width: 64rem) {
	.site-name__full {
		display: none;
	}

	.site-name__short {
		display: inline;
	}

	.site-footer__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 47.99rem) {
	.container {
		width: min(calc(100% - 1.25rem), var(--container));
	}

	.site-header__inner {
		min-height: 4.25rem;
	}

	.primary-navigation {
		inset-inline: 0.625rem;
	}

	.home-hero {
		padding-block: 3.75rem;
	}

	.button-group,
	.button {
		width: 100%;
	}

	.steps-list {
		grid-template-columns: 1fr;
	}

	.site-footer__grid {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 24rem) {
	th,
	td {
		padding: 0.75rem;
	}
}