/*
 * Multicharts Universe — Single Research Article (CPT)
 *
 * Loaded only on is_singular('research'). Pairs with single-research.php
 * and the Article JSON-LD emitted from inc/seo-meta.php.
 */

/* === Hero ============================================================== */
body.mcu-theme .mcu-research-single__hero {
	padding-block: var(--space-3xl) var(--space-xl);
	background:
		radial-gradient(ellipse at 50% 0%, rgba(212, 175, 55, 0.06) 0%, transparent 60%),
		linear-gradient(180deg, var(--color-void) 0%, var(--color-deep-space) 100%);
	border-bottom: 1px solid var(--color-border-subtle);
	text-align: center;
}

body.mcu-theme .mcu-research-single__title {
	font-family: var(--font-display);
	font-size: clamp(2rem, 5vw, 3.5rem);
	font-weight: var(--weight-light);
	line-height: var(--leading-tight);
	letter-spacing: var(--tracking-tight);
	color: var(--color-text-primary);
	margin: var(--space-sm) 0 0;
}

body.mcu-theme .mcu-research-single__subtitle {
	font-family: var(--font-display);
	font-style: italic;
	font-size: clamp(1.05rem, 2vw, 1.35rem);
	line-height: var(--leading-snug);
	color: var(--color-gold-bright);
	margin: var(--space-md) auto 0;
	max-width: 56ch;
}

body.mcu-theme .mcu-research-single__meta {
	margin: var(--space-md) 0 0;
	font-family: var(--font-mono);
	font-size: var(--text-sm);
	color: var(--color-text-muted);
	letter-spacing: var(--tracking-wide);
}

body.mcu-theme .mcu-research-single__date--modified {
	color: var(--color-gold-bright);
}

/* === Pillar tag bar ==================================================== */
body.mcu-theme .mcu-research-single__pillars {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: var(--space-xs);
	padding: 0;
	margin: var(--space-md) 0 0;
}

body.mcu-theme .mcu-research-single__pillar-tag {
	display: inline-block;
	padding: 0.35em 0.8em;
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	letter-spacing: var(--tracking-wide);
	text-transform: uppercase;
	color: var(--color-gold-bright);
	background: rgba(212, 175, 55, 0.06);
	border: 1px solid var(--color-border-default);
	border-radius: var(--radius-pill);
	text-decoration: none;
	transition: background var(--dur-base) var(--ease-celestial),
	            border-color var(--dur-base) var(--ease-celestial);
}

body.mcu-theme .mcu-research-single__pillar-tag:hover {
	background: rgba(212, 175, 55, 0.12);
	border-color: var(--color-gold);
}

/* === Body ============================================================== */
body.mcu-theme .mcu-research-single__body {
	padding-block: var(--space-2xl);
	background: var(--color-deep-space);
}

body.mcu-theme .mcu-research-single__body p,
body.mcu-theme .mcu-research-single__body li {
	color: var(--color-text-secondary);
	line-height: var(--leading-relaxed);
	font-size: clamp(1rem, 1.5vw, 1.075rem);
}

body.mcu-theme .mcu-research-single__body h2 {
	font-family: var(--font-display);
	font-size: clamp(1.5rem, 3vw, 2rem);
	font-weight: var(--weight-light);
	color: var(--color-text-primary);
	margin-top: var(--space-xl);
	margin-bottom: var(--space-sm);
}

body.mcu-theme .mcu-research-single__body h3 {
	font-family: var(--font-display);
	font-size: clamp(1.25rem, 2.5vw, 1.5rem);
	font-weight: var(--weight-regular);
	color: var(--color-text-primary);
	margin-top: var(--space-lg);
	margin-bottom: var(--space-xs);
}

body.mcu-theme .mcu-research-single__body blockquote {
	margin: var(--space-lg) 0;
	padding: var(--space-md) var(--space-lg);
	border-left: 3px solid var(--color-gold-bright);
	background: rgba(212, 175, 55, 0.04);
	font-family: var(--font-display);
	font-style: italic;
	color: var(--color-text-primary);
}

body.mcu-theme .mcu-research-single__body a {
	color: var(--color-gold-bright);
	text-decoration: underline;
	text-decoration-color: rgba(212, 175, 55, 0.4);
	text-underline-offset: 0.2em;
}

body.mcu-theme .mcu-research-single__body a:hover {
	text-decoration-color: var(--color-gold-bright);
}

/* === Back CTA ========================================================== */
body.mcu-theme .mcu-research-single__cta {
	padding-block: var(--space-xl);
	background: linear-gradient(180deg, var(--color-deep-space) 0%, var(--color-void) 100%);
	text-align: center;
}