/**
 * About page (page-about.php, template-parts/about.php).
 * Builds on pages/content.css (tokens, hero).
 */

.sp-about__inner {
	max-width: var( --global-content-width, 1290px );
	margin-inline: auto;
	padding-inline: var( --global-content-edge-padding, 1.5rem );
}

.sp-about > section {
	padding-block: clamp( 3.5rem, 8vw, 6rem );
}

.sp-about > section + section {
	padding-top: 0;
}

/* Shared heading pieces */
.sp-about__eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 0.625rem;
	margin: 0 0 1rem;
	color: var( --sp-orange-dark, #be5008 );
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.14em;
	line-height: 1;
	text-transform: uppercase;
}

.sp-about__dot {
	width: 6px;
	height: 6px;
	background: var( --sp-orange, #e8620a );
	border-radius: 50%;
	box-shadow: 0 0 0 3px rgba( 232, 98, 10, 0.18 );
}

.sp-about__title {
	max-width: 760px;
	margin: 0;
	color: var( --sp-black, #000000 );
	font-size: clamp( 1.875rem, 4vw, 3rem );
	font-weight: 700;
	letter-spacing: -0.03em;
	line-height: 1.1;
}

.sp-about__head {
	margin-bottom: clamp( 2rem, 4vw, 3rem );
}

/* --------------------------------------------------------------------------
   Mission
   ----------------------------------------------------------------------- */

.sp-about__mission-inner {
	display: grid;
	grid-template-columns: minmax( 0, 1fr ) minmax( 0, 1fr );
	align-items: start;
	gap: 2rem clamp( 3rem, 7vw, 6rem );
}

.sp-about__mission-body {
	color: var( --sp-c-text );
	font-size: 1.125rem;
	line-height: 1.75;
}

.sp-about__mission-body > :first-child {
	margin-top: 0;
}

.sp-about__mission-body > :last-child {
	margin-bottom: 0;
}

.sp-about__mission-body p {
	margin: 0 0 1.25em;
}

.sp-about__mission-body a {
	color: var( --sp-c-hover );
	font-weight: 600;
	text-underline-offset: 3px;
}

.sp-about__mission-body a:hover {
	color: var( --sp-black, #000000 );
}

/* --------------------------------------------------------------------------
   Principles
   ----------------------------------------------------------------------- */

.sp-about__grid {
	display: grid;
	grid-template-columns: repeat( 4, minmax( 0, 1fr ) );
	gap: 1rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.sp-about-card {
	margin: 0;
	padding: clamp( 1.5rem, 2.5vw, 2rem );
	background: var( --sp-white, #ffffff );
	border: 1px solid var( --sp-c-border );
	border-radius: 20px;
	transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.sp-about-card:hover {
	border-color: rgba( 232, 98, 10, 0.35 );
	box-shadow: 0 18px 40px rgba( 0, 0, 0, 0.06 );
	transform: translateY( -3px );
}

.sp-about-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	margin-bottom: 1.25rem;
	background: rgba( 232, 98, 10, 0.1 );
	border-radius: 14px;
	color: var( --sp-orange-dark, #be5008 );
}

.sp-about-card__icon .sp-icon {
	width: 24px;
	height: 24px;
}

.sp-about-card__title {
	margin: 0 0 0.5rem;
	color: var( --sp-black, #000000 );
	font-size: 1.125rem;
	font-weight: 700;
	line-height: 1.3;
}

.sp-about-card__text {
	margin: 0;
	color: var( --sp-c-muted );
	font-size: 0.9375rem;
	line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Process
   ----------------------------------------------------------------------- */

.sp-about__process {
	background: var( --sp-c-surface );
	border-block: 1px solid var( --sp-c-border );
}

.sp-about > .sp-about__process {
	padding-block: clamp( 3.5rem, 8vw, 6rem );
}

.sp-about__steps {
	display: grid;
	grid-template-columns: repeat( 4, minmax( 0, 1fr ) );
	gap: 1rem;
	margin: 0;
	padding: 0;
	list-style: none;
	counter-reset: none;
}

.sp-about-step {
	margin: 0;
	padding: 1.5rem;
	background: var( --sp-white, #ffffff );
	border: 1px solid var( --sp-c-border );
	border-radius: 20px;
}

.sp-about-step__num {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 44px;
	height: 44px;
	margin-bottom: 1.25rem;
	padding: 0 0.75rem;
	background: var( --sp-black, #000000 );
	border-radius: 999px;
	color: var( --sp-orange, #e8620a );
	font-size: 0.875rem;
	font-variant-numeric: tabular-nums;
	font-weight: 700;
}

.sp-about-step__title {
	margin: 0 0 0.5rem;
	color: var( --sp-black, #000000 );
	font-size: 1.125rem;
	font-weight: 700;
}

.sp-about-step__text {
	margin: 0;
	color: var( --sp-c-muted );
	font-size: 0.9375rem;
	line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Research areas
   ----------------------------------------------------------------------- */

.sp-about > .sp-about__areas {
	padding-top: clamp( 3.5rem, 8vw, 6rem );
}

.sp-about__areas-inner {
	display: grid;
	grid-template-columns: minmax( 0, 5fr ) minmax( 0, 7fr );
	align-items: center;
	gap: 2rem clamp( 3rem, 7vw, 6rem );
}

.sp-about__pills {
	display: flex;
	flex-wrap: wrap;
	gap: 0.625rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.sp-about__pills li {
	margin: 0;
}

.sp-about-pill {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	min-height: 44px;
	padding: 0.5rem 1.125rem;
	background: var( --sp-white, #ffffff );
	border: 1px solid var( --sp-c-border-strong );
	border-radius: 999px;
	color: var( --sp-black, #000000 );
	font-size: 0.9375rem;
	font-weight: 500;
	text-decoration: none;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.sp-about-pill .sp-icon {
	width: 16px;
	height: 16px;
	color: var( --sp-c-muted );
	transition: transform 0.15s ease, color 0.15s ease;
}

.sp-about-pill:hover {
	background: var( --sp-black, #000000 );
	border-color: var( --sp-black, #000000 );
	color: var( --sp-white, #ffffff );
}

.sp-about-pill:hover .sp-icon {
	color: var( --sp-orange, #e8620a );
	transform: translateX( 2px );
}

.sp-about-pill:focus-visible {
	outline: none;
	box-shadow: var( --sp-c-ring );
}

.sp-about-pill:active {
	background: #222222;
	color: var( --sp-white, #ffffff );
}

/* --------------------------------------------------------------------------
   Call to action
   ----------------------------------------------------------------------- */

.sp-about-cta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem 3rem;
	padding: clamp( 2rem, 5vw, 3.5rem );
	background:
		radial-gradient( ellipse 60% 120% at 100% 0%, rgba( 232, 98, 10, 0.35 ) 0%, transparent 60% ),
		var( --sp-black, #000000 );
	border-radius: 28px;
	color: rgba( 255, 255, 255, 0.78 );
}

.sp-about-cta__text {
	max-width: 620px;
}

.sp-about-cta__title {
	margin: 0 0 0.75rem;
	color: var( --sp-white, #ffffff );
	font-size: clamp( 1.5rem, 3vw, 2.25rem );
	font-weight: 700;
	letter-spacing: -0.02em;
	line-height: 1.15;
}

.sp-about-cta__text p {
	margin: 0;
	font-size: 1.0625rem;
	line-height: 1.6;
}

.sp-about-cta__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
}

.sp-about-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 48px;
	padding: 0.75rem 1.5rem;
	border: 1px solid transparent;
	border-radius: 999px;
	font-size: 0.9375rem;
	font-weight: 600;
	text-decoration: none;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.sp-about-btn:focus-visible {
	outline: none;
	box-shadow: 0 0 0 2px var( --sp-black, #000000 ), 0 0 0 4px var( --sp-orange, #e8620a );
}

.sp-about-btn--primary {
	background: var( --sp-orange, #e8620a );
	color: var( --sp-black, #000000 );
}

.sp-about-btn--primary:hover {
	background: var( --sp-orange-dark, #be5008 );
	color: var( --sp-white, #ffffff );
}

.sp-about-btn--primary:active {
	background: #9e4207;
	color: var( --sp-white, #ffffff );
}

.sp-about-btn--ghost {
	border-color: rgba( 255, 255, 255, 0.35 );
	color: var( --sp-white, #ffffff );
}

.sp-about-btn--ghost:hover {
	background: var( --sp-white, #ffffff );
	border-color: var( --sp-white, #ffffff );
	color: var( --sp-black, #000000 );
}

.sp-about-btn--ghost:active {
	background: #e6e6e6;
	color: var( --sp-black, #000000 );
}

/* --------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------- */

@media ( max-width: 1024px ) {
	.sp-about__grid,
	.sp-about__steps {
		grid-template-columns: repeat( 2, minmax( 0, 1fr ) );
	}
}

@media ( max-width: 800px ) {
	.sp-about__mission-inner,
	.sp-about__areas-inner {
		grid-template-columns: minmax( 0, 1fr );
	}
}

@media ( max-width: 560px ) {
	.sp-about__grid,
	.sp-about__steps {
		grid-template-columns: minmax( 0, 1fr );
	}

	.sp-about-cta__actions,
	.sp-about-btn {
		width: 100%;
	}
}

@media ( prefers-reduced-motion: reduce ) {
	.sp-about-card,
	.sp-about-card:hover {
		transform: none;
		transition: none;
	}
}