/*
 * Dr Data — editorial brand stylesheet
 * Loaded on top of theme.json which already publishes design tokens as
 * --wp--preset--colour--*, --wp--preset--font-size--*, etc.
 *
 * Order of declarations:
 *   1.  Custom properties and base resets
 *   2.  Typographic primitives
 *   3.  Layout primitives (containers, grids)
 *   4.  Reusable patterns (eyebrows, rules, chips, cards, surfaces)
 *   5.  Components (credibility strip, project cards, timeline, price card, etc.)
 *   6.  Page chrome (header, footer)
 *   7.  Utilities and accessibility helpers
 *   8.  Responsive overrides
 *
 * Accessibility notes:
 *   - All font sizes are in rem so user font-size preferences are respected
 *     (WCAG 1.4.4 Resize Text).
 *   - Text colours meet WCAG 2.2 AA contrast (4.5:1) on the surfaces they
 *     are used on. Taupe (#8E8175) is decorative only; --colour-taupe-text
 *     is the AA-compliant variant for small print.
 *   - Links inside running text are underlined so colour is not the only
 *     distinguishing cue (WCAG 1.4.1 Use of Color).
 */

/* =========================================================
   1.  CUSTOM PROPERTIES
   ========================================================= */

:root {
	--colour-primary-red: #B23A3A;
	--colour-deep-crimson: #8A2828;
	--colour-warm-white: #FAF6F0;
	--colour-cream: #F0E8DC;
	--colour-cream-deep: #E6DCCB;
	--colour-ink: #1F1B16;
	--colour-body: #3D3933;
	--colour-meta: #5F5E5A;
	--colour-taupe: #8E8175;          /* decorative use only — fails AA for text */
	--colour-taupe-text: #6F6353;     /* AA-compliant taupe for small print */
	--colour-cream-on-dark: #E8DECC;
	--colour-taupe-on-dark: #B5A483;
	--colour-pure-white: #FFFFFF;

	--font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
	--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

	--space-1: 4px;
	--space-2: 8px;
	--space-3: 12px;
	--space-4: 16px;
	--space-5: 24px;
	--space-6: 32px;
	--space-7: 48px;
	--space-8: 64px;
	--space-9: 96px;

	--tracking-eyebrow: 0.16em;
	--tracking-eyebrow-wide: 0.18em;

	--radius-sm: 4px;
	--radius-md: 6px;
	--radius-lg: 8px;
	--radius-pill: 999px;

	--rule-soft: rgba(31, 27, 22, 0.08);
	--rule-medium: rgba(31, 27, 22, 0.18);

	--container-max: 1100px;
	--container-pad: clamp(20px, 4vw, 48px);
}

/* =========================================================
   2.  TYPOGRAPHY
   ========================================================= */

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	background: var(--colour-warm-white);
	color: var(--colour-ink);
	font-family: var(--font-serif);
	font-size: 0.9375rem;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
	font-family: var(--font-serif);
	font-weight: 400;
	color: var(--colour-ink);
	line-height: 1.2;
	margin: 0 0 var(--space-3);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.625rem); line-height: 1.15; }
h2 { font-size: clamp(1.375rem, 3vw, 1.75rem); }
h3 { font-size: clamp(1.125rem, 2.4vw, 1.375rem); }

p { margin: 0 0 var(--space-4); }

/*
 * Links are underlined by default so colour is never the only cue
 * (WCAG 1.4.1). Navigation, chips, buttons, and heading links opt out
 * below — their role is clear from context and grouping.
 */
a {
	color: var(--colour-primary-red);
	text-decoration: underline;
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
	transition: color 0.18s ease;
}
a:hover { color: var(--colour-deep-crimson); }

/* Opt-outs: self-evident interactive elements and titles */
.dr-site-nav a,
.dr-site-header__brand,
.dr-chip,
.dr-button,
.dr-site-footer__grid a,
.dr-filters__menu-items a,
h1 a, h2 a, h3 a, h4 a,
.wp-block-post-title a,
.dr-course__title a,
.wp-block-query-pagination a {
	text-decoration: none;
}
.dr-site-nav a:hover,
.dr-site-footer__grid a:hover,
.wp-block-post-title a:hover,
h1 a:hover, h2 a:hover, h3 a:hover, h4 a:hover,
.wp-block-query-pagination a:hover {
	text-decoration: underline;
	text-underline-offset: 3px;
}

/* Italic body text used in editorial introductions and tag lines */
.dr-italic, .has-style-italic {
	font-style: italic;
	color: var(--colour-body);
}

/* Display title with the red period brand mark */
.dr-display {
	font-size: clamp(2.5rem, 6vw, 4.5rem);
	font-weight: 400;
	line-height: 1.05;
	letter-spacing: -0.01em;
}
.dr-display .dr-period { color: var(--colour-primary-red); }

/* Editorial body text (slightly larger and warmer than the default) */
.dr-prose {
	font-size: 1.0625rem;
	line-height: 1.7;
	color: var(--colour-ink);
	max-width: 640px;
}

/* =========================================================
   3.  LAYOUT PRIMITIVES
   ========================================================= */

.dr-container {
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: var(--container-pad);
}

.dr-container-narrow {
	max-width: 720px;
	margin-inline: auto;
	padding-inline: var(--container-pad);
}

.dr-stack > * + * { margin-top: var(--space-5); }
.dr-stack-tight > * + * { margin-top: var(--space-3); }
.dr-stack-loose > * + * { margin-top: var(--space-7); }

.dr-cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

.dr-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.dr-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.dr-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }

.dr-section {
	padding-block: clamp(40px, 8vw, 96px);
}
.dr-section--tight { padding-block: clamp(28px, 5vw, 56px); }

/* Section surfaces */
.dr-surface-cream { background: var(--colour-cream); }
.dr-surface-charcoal {
	background: var(--colour-ink);
	color: var(--colour-cream-on-dark);
}
.dr-surface-charcoal h1, .dr-surface-charcoal h2,
.dr-surface-charcoal h3, .dr-surface-charcoal h4 { color: var(--colour-warm-white); }
.dr-surface-charcoal a { color: var(--colour-warm-white); }
.dr-surface-charcoal .dr-eyebrow { color: var(--colour-taupe-on-dark); }
.dr-surface-charcoal .dr-meta { color: var(--colour-taupe-on-dark); }
.dr-surface-charcoal .dr-prose { color: var(--colour-cream-on-dark); }

/* =========================================================
   4.  REUSABLE PATTERNS
   ========================================================= */

/*
 * Eyebrow label — small caps in red, tracked, sits above a section heading.
 * Authors should write sentence case in the markup; the transform here
 * produces the visual capitals without screen readers spelling out
 * letter-by-letter the way literal all-caps text can.
 */
.dr-eyebrow {
	display: block;
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	font-weight: 500;
	color: var(--colour-primary-red);
	letter-spacing: var(--tracking-eyebrow-wide);
	text-transform: uppercase;
	margin: 0 0 var(--space-3);
}

/* Meta line — smaller text in muted grey for dates, venues, byline meta */
.dr-meta {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-meta);
}

/* Hairline horizontal rule — quiet section separator */
.dr-rule {
	height: 0;
	border: 0;
	border-top: 1px solid var(--rule-soft);
	margin-block: var(--space-5);
}
.dr-rule--strong { border-top-color: var(--rule-medium); }
.dr-rule--red { border-top: 1.5px solid var(--colour-primary-red); width: 80px; margin-block: 0 var(--space-4); }

/* Chip — small rounded label used for topics, filters, action links */
.dr-chip {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-family: var(--font-sans);
	font-size: 0.75rem;
	font-weight: 400;
	padding: 6px 12px;
	min-height: 24px;
	border-radius: var(--radius-pill);
	background: var(--colour-cream);
	color: var(--colour-body);
	text-decoration: none;
	transition: background 0.18s ease;
}
.dr-chip:hover {
	background: var(--colour-cream-deep);
	color: var(--colour-deep-crimson);
	text-decoration: underline;
	text-underline-offset: 3px;
}
.dr-chip--filled {
	background: var(--colour-primary-red);
	color: var(--colour-warm-white);
}
.dr-chip--filled:hover { background: var(--colour-deep-crimson); color: var(--colour-warm-white); }
.dr-chip--outline {
	background: transparent;
	border: 1px solid var(--rule-medium);
}
.dr-chip__close {
	font-size: 0.625rem;
	line-height: 1;
	color: var(--colour-warm-white);
}

/* Button (CTA) */
.dr-button {
	display: inline-block;
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	font-weight: 500;
	padding: 11px 22px;
	background: var(--colour-primary-red);
	color: var(--colour-warm-white);
	border-radius: var(--radius-sm);
	text-decoration: none;
	border: 0;
	cursor: pointer;
	transition: background 0.18s ease;
}
.dr-button:hover { background: var(--colour-deep-crimson); color: var(--colour-warm-white); }
.dr-button--ghost {
	background: transparent;
	border: 1px solid currentColor;
	color: var(--colour-ink);
}
.dr-button--ghost:hover { background: var(--colour-ink); color: var(--colour-warm-white); }

/* Ghost buttons on the charcoal surface invert, so the hover state never
   disappears into the dark background. Removes the need for inline styles. */
.dr-surface-charcoal .dr-button--ghost { color: var(--colour-warm-white); }
.dr-surface-charcoal .dr-button--ghost:hover {
	background: var(--colour-warm-white);
	color: var(--colour-ink);
}

/* Card — white surface with subtle border for distinct sub-sections */
.dr-card {
	background: var(--colour-pure-white);
	border: 1px solid var(--rule-medium);
	border-radius: var(--radius-md);
	padding: var(--space-5);
}

/* =========================================================
   5.  COMPONENTS
   ========================================================= */

/* Credibility strip — 4 metrics across the top of the homepage */
.dr-credibility {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: var(--space-5);
	padding-block: var(--space-6);
	border-block: 1px solid var(--rule-soft);
}
.dr-credibility__metric {
	font-family: var(--font-serif);
	font-size: 2rem;
	font-weight: 500;
	color: var(--colour-primary-red);
	line-height: 1;
	margin-bottom: 4px;
}
.dr-credibility__label {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	color: var(--colour-meta);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
}

/* Project card — used on homepage and the About research projects section */
.dr-project {
	border-top: 1px solid var(--rule-soft);
	padding-block: var(--space-5);
}
.dr-project__status {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	color: var(--colour-primary-red);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
	margin-bottom: var(--space-2);
}
.dr-project__title {
	font-size: 1.125rem;
	margin-bottom: var(--space-2);
}
.dr-project__meta {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-meta);
}

/* Reading list item — author, title, brief note */
.dr-reading {
	border-top: 1px solid var(--rule-soft);
	padding-block: var(--space-4);
	display: grid;
	grid-template-columns: 1fr auto;
	gap: var(--space-4);
	align-items: start;
}
.dr-reading__title { font-size: 1rem; margin: 0 0 4px; }
.dr-reading__author { font-family: var(--font-sans); font-size: 0.75rem; color: var(--colour-meta); }
.dr-reading__kind {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	color: var(--colour-primary-red);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
}

/* Timeline pattern — used on About (education, positions) and on syllabus */
.dr-timeline__row {
	display: grid;
	grid-template-columns: 80px 1fr;
	gap: var(--space-4);
	padding-block: var(--space-4);
	border-bottom: 1px solid var(--rule-soft);
}
.dr-timeline__row:last-child { border-bottom: 0; }
.dr-timeline__when {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	color: var(--colour-primary-red);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
	padding-top: 4px;
}
.dr-timeline__title { font-size: 1.0625rem; margin: 0 0 4px; }
.dr-timeline__summary {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-meta);
	line-height: 1.55;
}

/* Publication entry — vertical journal-index pattern on the publications archive */
.dr-publication {
	border-top: 1px solid var(--rule-soft);
	padding-block: var(--space-5);
}
.dr-publication__type {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	color: var(--colour-primary-red);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
	margin-bottom: var(--space-2);
}
.dr-publication__title {
	font-size: 1.25rem;
	font-weight: 400;
	margin: 0 0 var(--space-2);
	line-height: 1.3;
}
.dr-publication__authors {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-body);
	margin-bottom: 4px;
}
.dr-publication__authors .dr-self {
	color: var(--colour-primary-red);
	font-weight: 500;
}
.dr-publication__venue {
	font-style: italic;
	color: var(--colour-meta);
	font-size: 0.8125rem;
	margin-bottom: var(--space-3);
}
.dr-publication__abstract {
	color: var(--colour-body);
	font-size: 0.875rem;
	line-height: 1.6;
	margin-bottom: var(--space-3);
}

/* Single publication / talk / project meta panel */
.dr-single-meta {
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	color: var(--colour-body);
	margin-bottom: var(--space-4);
}
.dr-single-meta dt {
	font-size: 0.6875rem;
	font-weight: 500;
	color: var(--colour-meta);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
	margin-top: var(--space-3);
}
.dr-single-meta dd { margin: 2px 0 0; }

/* BibTeX block on the single publication page */
.dr-bibtex {
	font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
	font-size: 0.75rem;
	line-height: 1.55;
	white-space: pre-wrap;
	overflow: auto;
	margin: 0 0 var(--space-3) 0;
}

/* Filter strip — chips, dropdown menus, search, and sort on archive pages */
.dr-filters {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
	align-items: center;
	padding-block: var(--space-4);
	border-bottom: 1px solid var(--rule-soft);
}
.dr-filters__input {
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	padding: 7px 14px;
	border: 1px solid var(--rule-medium);
	border-radius: var(--radius-pill);
	background: transparent;
	color: var(--colour-ink);
	min-width: 220px;
	line-height: 1.4;
}
.dr-filters__menu { position: relative; }
.dr-filters__menu > summary {
	list-style: none;
	cursor: pointer;
	line-height: 1.4;
}
.dr-filters__menu > summary::-webkit-details-marker { display: none; }
.dr-filters__menu-items {
	position: absolute;
	top: 100%;
	left: 0;
	margin-top: 4px;
	background: var(--colour-pure-white);
	border: 1px solid var(--rule-medium);
	border-radius: var(--radius-md);
	padding: 8px 0;
	min-width: 200px;
	max-height: 320px;
	overflow-y: auto;
	box-shadow: 0 4px 12px rgba(31, 27, 22, 0.08);
	z-index: 100;
}
.dr-filters__menu-items a {
	display: block;
	padding: 7px 16px;
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-body);
}
.dr-filters__menu-items a:hover {
	background: var(--colour-cream);
	color: var(--colour-deep-crimson);
}
.dr-filters__menu-items--empty {
	padding: 12px 16px;
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	color: var(--colour-meta);
	font-style: italic;
}
.dr-filters__sort {
	margin-left: auto;
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	white-space: nowrap;
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-meta);
}
.dr-filters__sort label {
	display: inline-flex;
	align-items: center;
	gap: 6px;
}
.dr-filters__sort select {
	border: 1px solid var(--rule-medium);
	border-radius: var(--radius-sm);
	background: transparent;
	font: inherit;
	color: var(--colour-ink);
	cursor: pointer;
	padding: 4px 6px;
}
.dr-filters .dr-chip { line-height: 1.4; padding: 6px 14px; }

/* Equalise the vertical box height of every interactive element in the
   filter strip. min-height keeps the native summary click target intact. */
.dr-filters__input,
.dr-filters .dr-chip,
.dr-filters summary.dr-chip,
.dr-filters__sort,
.dr-filters__sort label {
	min-height: 32px;
	box-sizing: border-box;
}

/* Safety net: wpautop may inject <p> wrappers and <br> elements into the form.
   display:contents makes the <p> transparent so its children remain flex items;
   hiding <br> removes the zero-width flex items that disrupt gaps. */
.dr-filters > p { display: contents; }
.dr-filters br   { display: none; }

@media (max-width: 600px) {
	.dr-filters__sort { margin-left: 0; }
	.dr-filters__input { min-width: 160px; flex: 1 1 100%; }
}

/* Course list — teaching page (markup from inc/teaching.php) */
.dr-courses {
	display: flex;
	flex-direction: column;
	gap: var(--space-6);
	margin-top: var(--space-5);
}
.dr-course {
	border-top: 1px solid var(--rule-soft);
	padding-top: var(--space-6);
}
.dr-course:first-child { border-top: 0; padding-top: 0; }
.dr-course__eyebrow {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	font-weight: 500;
	color: var(--colour-primary-red);
	letter-spacing: var(--tracking-eyebrow-wide);
	text-transform: uppercase;
	margin: 0 0 var(--space-3);
}
.dr-course__title {
	font-family: var(--font-serif);
	font-size: 1.5rem;
	font-weight: 400;
	line-height: 1.3;
	margin: 0 0 var(--space-2);
}
.dr-course__title a { color: var(--colour-ink); }
.dr-course__title a:hover { color: var(--colour-primary-red); }
.dr-course__tagline {
	font-family: var(--font-serif);
	font-style: italic;
	font-size: 0.9375rem;
	color: var(--colour-body);
	margin: 0 0 var(--space-3);
	max-width: 620px;
}
.dr-course__meta {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-meta);
	margin: 0 0 var(--space-4);
	letter-spacing: 0.04em;
}
.dr-course__meta .price { color: var(--colour-body); font-weight: 500; }

/* Course detail hero — editorial column plus enrolment card */
.dr-course-hero {
	display: grid;
	grid-template-columns: 1fr 240px;
	gap: var(--space-6);
}
@media (max-width: 720px) {
	.dr-course-hero { grid-template-columns: 1fr; }
}

/* Course price card — block on course detail page */
.dr-price-card {
	background: var(--colour-pure-white);
	border: 1px solid var(--rule-medium);
	border-radius: var(--radius-md);
	padding: var(--space-4);
}
.dr-price-card__amount {
	font-family: var(--font-serif);
	font-size: 2rem;
	font-weight: 500;
	color: var(--colour-ink);
	margin: 4px 0;
}
.dr-price-card__vat {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-taupe-text);
	margin-bottom: var(--space-4);
}
.dr-price-card__cta {
	display: block;
	width: 100%;
	text-align: center;
	padding: 11px;
	background: var(--colour-primary-red);
	color: var(--colour-warm-white);
	border-radius: var(--radius-sm);
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	margin-bottom: var(--space-2);
}
.dr-price-card__secondary {
	display: block;
	width: 100%;
	text-align: center;
	padding: 10px;
	border: 1px solid var(--colour-ink);
	color: var(--colour-ink);
	border-radius: var(--radius-sm);
	font-family: var(--font-sans);
	font-size: 0.75rem;
	margin-bottom: var(--space-4);
}
.dr-price-card__footnote {
	border-top: 1px solid var(--rule-soft);
	padding-top: var(--space-3);
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-taupe-text);
	line-height: 1.6;
}
.dr-price-card__footnote ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

/* WooCommerce add-to-cart form inside the price card. WooCommerce injects
   its own form, quantity input and submit button; restyle them to match. */
.dr-price-card form.cart,
.dr-price-card .cart {
	display: grid !important;
	grid-template-columns: 52px minmax(0, 1fr);
	gap: var(--space-3);
	align-items: stretch;
	margin: 0 0 var(--space-4);
}
.dr-price-card form.cart::before,
.dr-price-card form.cart::after {
	content: none !important;
	display: none !important;
}
.dr-price-card .quantity {
	display: block !important;
	float: none !important;
	width: 52px !important;
	margin: 0 !important;
}
.dr-price-card .quantity input.qty,
.dr-price-card input.qty,
.dr-price-card input[type="number"].qty {
	appearance: textfield;
	-moz-appearance: textfield;
	width: 52px !important;
	min-width: 0 !important;
	max-width: 52px !important;
	height: auto !important;
	min-height: 0 !important;
	box-sizing: border-box !important;
	padding: 6px 8px !important;
	border: 1px solid var(--rule-medium) !important;
	border-radius: var(--radius-sm) !important;
	background: transparent !important;
	color: var(--colour-ink) !important;
	font-family: var(--font-sans) !important;
	font-size: 0.8125rem !important;
	font-weight: 500 !important;
	line-height: 1.6 !important;
	text-align: center !important;
	box-shadow: none !important;
}
.dr-price-card input.qty::-webkit-outer-spin-button,
.dr-price-card input.qty::-webkit-inner-spin-button {
	margin: 0;
}
.dr-price-card button.single_add_to_cart_button,
.dr-price-card .single_add_to_cart_button,
.dr-price-card form.cart .button {
	display: inline-flex !important;
	align-items: center !important;
	justify-content: center !important;
	width: 100% !important;
	min-width: 0 !important;
	max-width: none !important;
	height: auto !important;
	min-height: 0 !important;
	box-sizing: border-box !important;
	padding: 6px 8px !important;
	border: 0 !important;
	border-radius: var(--radius-sm) !important;
	background: var(--colour-primary-red) !important;
	color: var(--colour-warm-white) !important;
	font-family: var(--font-sans) !important;
	font-size: 0.8125rem !important;
	font-weight: 500 !important;
	line-height: 1.6 !important;
	text-align: center !important;
	white-space: nowrap !important;
	text-decoration: none !important;
	box-shadow: none !important;
	cursor: pointer !important;
}
.dr-price-card button.single_add_to_cart_button:hover,
.dr-price-card .single_add_to_cart_button:hover,
.dr-price-card form.cart .button:hover {
	background: var(--colour-deep-crimson) !important;
	color: var(--colour-warm-white) !important;
	text-decoration: none !important;
}
.dr-price-card .stock,
.dr-price-card .woocommerce-variation,
.dr-price-card .woocommerce-variation-add-to-cart {
	grid-column: 1 / -1;
}
@media (max-width: 560px) {
	.dr-price-card form.cart,
	.dr-price-card .cart {
		grid-template-columns: 42px minmax(0, 180px);
		justify-content: center;
	}
}

/* Steps — the four-step "how it works" block on the course page */
.dr-steps {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: var(--space-4);
}
.dr-steps__number {
	font-family: var(--font-serif);
	font-size: 2rem;
	font-weight: 500;
	color: var(--colour-primary-red);
	margin-bottom: var(--space-2);
}
.dr-steps__title { font-size: 1rem; margin: 0 0 4px; }
.dr-steps__summary {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-meta);
	line-height: 1.55;
}

/* FAQ */
.dr-faq__item {
	border-bottom: 1px solid var(--rule-soft);
	padding-block: var(--space-4);
}
.dr-faq__q { font-size: 0.9375rem; margin: 0 0 var(--space-2); font-weight: 400; }
.dr-faq__a {
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	color: var(--colour-meta);
	line-height: 1.6;
	margin: 0;
}

/* Collapsible — used for grants and any toggleable section on About */
.dr-collapse {
	border: 1px solid var(--rule-soft);
	border-radius: var(--radius-md);
	background: var(--colour-pure-white);
}
.dr-collapse > summary {
	cursor: pointer;
	padding: var(--space-4) var(--space-5);
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-deep-crimson);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
	list-style: none;
}
.dr-collapse > summary::-webkit-details-marker { display: none; }
/* The "/ ''" alternative text keeps the decorative arrows out of the
   accessibility tree; <details> already announces its own state. */
.dr-collapse > summary::after { content: " ▾" / ""; }
.dr-collapse[open] > summary::after { content: " ▴" / ""; }
.dr-collapse__body { padding: 0 var(--space-5) var(--space-5); }

/* =========================================================
   6.  PAGE CHROME
   ========================================================= */

/* Skip link — first focusable element on every page */
.dr-skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	z-index: 100000;
	display: inline-block;
	padding: 12px 20px;
	background: var(--colour-ink);
	color: var(--colour-warm-white);
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	text-decoration: underline;
	border-radius: 0 0 var(--radius-sm) 0;
}
.dr-skip-link:focus {
	left: 0;
	color: var(--colour-warm-white);
}

/* Site header — the consistent nav across the top */
.dr-site-header {
	border-bottom: 1px solid var(--rule-soft);
	padding-block: var(--space-4);
	background: var(--colour-warm-white);
}
.dr-site-header__inner {
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: var(--container-pad);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-5);
	flex-wrap: wrap;
}
.dr-site-header__brand {
	display: flex;
	align-items: center;
	gap: var(--space-2);
	font-family: var(--font-serif);
	font-size: 1.0625rem;
	color: var(--colour-ink);
}
.dr-site-header__brand img { width: 28px; height: 28px; }
.dr-site-header__brand .dr-period { color: var(--colour-primary-red); }

/* Mobile navigation toggle — hidden on wide screens and without JS */
.dr-nav-toggle {
	display: none;
	font-family: var(--font-sans);
	font-size: 0.8125rem;
	font-weight: 500;
	color: var(--colour-ink);
	background: transparent;
	border: 1px solid var(--rule-medium);
	border-radius: var(--radius-sm);
	padding: 8px 14px;
	cursor: pointer;
}

.dr-site-nav {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-4);
	font-family: var(--font-sans);
	font-size: 0.8125rem;
}
.dr-site-nav a {
	color: var(--colour-body);
	padding-block: var(--space-2);
}
.dr-site-nav a:hover,
.dr-site-nav a[aria-current="page"],
.dr-site-nav .current-menu-item a { color: var(--colour-deep-crimson); }
.dr-site-nav a[aria-current="page"] { font-weight: 600; }

/* Site footer — charcoal block at the bottom of every page */
.dr-site-footer {
	background: var(--colour-ink);
	color: var(--colour-cream-on-dark);
	padding-block: var(--space-6);
}
.dr-site-footer__inner {
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: var(--container-pad);
}
.dr-site-footer__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--space-6);
	margin-bottom: var(--space-5);
}
.dr-site-footer__heading {
	font-family: var(--font-sans);
	font-size: 0.6875rem;
	font-weight: 500;
	color: var(--colour-taupe-on-dark);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
	margin: 0 0 var(--space-3);
}
.dr-site-footer ul { list-style: none; margin: 0; padding: 0; }
.dr-site-footer ul li {
	font-family: var(--font-sans);
	font-size: 0.75rem;
	line-height: 2;
}
.dr-site-footer ul a { color: var(--colour-cream-on-dark); }
.dr-site-footer ul a:hover { color: var(--colour-warm-white); text-decoration: underline; }
.dr-site-footer__bottom {
	border-top: 1px solid rgba(232, 222, 204, 0.18);
	padding-top: var(--space-3);
	font-family: var(--font-sans);
	font-size: 0.75rem;
	color: var(--colour-taupe-on-dark);
}
.dr-site-footer__bottom a { color: var(--colour-cream-on-dark); }
.dr-site-footer__bottom a:hover { color: var(--colour-warm-white); }

/* =========================================================
   7.  UTILITIES AND ACCESSIBILITY HELPERS
   ========================================================= */

.dr-mt-0 { margin-top: 0; }
.dr-mb-0 { margin-bottom: 0; }
.dr-mt-5 { margin-top: var(--space-5); }
.dr-mb-5 { margin-bottom: var(--space-5); }
.dr-text-centre { text-align: center; }
.dr-text-meta { color: var(--colour-meta); }

/* Visually hidden — kept in the accessibility tree. The WP core
   .screen-reader-text alias covers markup produced by core blocks. */
.dr-visually-hidden,
.screen-reader-text {
	clip: rect(0 0 0 0); clip-path: inset(50%); height: 1px;
	overflow: hidden; position: absolute; white-space: nowrap; width: 1px;
}
.screen-reader-text:focus {
	clip: auto; clip-path: none; height: auto; width: auto;
	overflow: visible; white-space: normal;
	background: var(--colour-warm-white); color: var(--colour-ink);
	padding: 12px 20px; z-index: 100000;
}

/* Focus rings — accessible and on-brand */
:focus-visible {
	outline: 2px solid var(--colour-primary-red);
	outline-offset: 3px;
	border-radius: 2px;
}
.dr-surface-charcoal :focus-visible,
.dr-site-footer :focus-visible {
	outline-color: var(--colour-cream-on-dark);
}

/* =========================================================
   8.  RESPONSIVE OVERRIDES
   ========================================================= */

@media (max-width: 880px) {
	.dr-grid-3, .dr-grid-4 { grid-template-columns: repeat(2, 1fr); }
	.dr-credibility { grid-template-columns: repeat(2, 1fr); }
	.dr-steps { grid-template-columns: repeat(2, 1fr); }
	.dr-site-footer__grid { grid-template-columns: 1fr; gap: var(--space-5); }
}

@media (max-width: 560px) {
	.dr-grid-2, .dr-grid-3, .dr-grid-4 { grid-template-columns: 1fr; }
	.dr-steps { grid-template-columns: 1fr; }
	.dr-timeline__row { grid-template-columns: 1fr; gap: var(--space-1); }

	/* Mobile navigation: the toggle button appears and the menu becomes a
	   stacked, collapsible panel. Without JavaScript (no .dr-js on <html>)
	   the full menu simply stays visible so navigation never disappears. */
	.dr-js .dr-nav-toggle { display: inline-block; }
	.dr-js .dr-site-nav {
		display: none;
		flex-direction: column;
		gap: 0;
		flex-basis: 100%;
		border-top: 1px solid var(--rule-soft);
		padding-top: var(--space-2);
	}
	.dr-js .dr-site-nav.is-open { display: flex; }
	.dr-js .dr-site-nav a {
		display: block;
		padding: 12px 4px;
		border-bottom: 1px solid var(--rule-soft);
	}
	.dr-site-nav { gap: var(--space-3); }
}

/* Respect reduced-motion preferences (WCAG 2.3.3) */
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after {
		transition-duration: 0.01ms !important;
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
	}
}

/* Print styles — clean CV-friendly output if anyone hits print */
@media print {
	.dr-site-header, .dr-site-footer, .dr-filters, .dr-skip-link { display: none; }
	body { background: white; color: black; }
	a { color: black; text-decoration: underline; }
}