/* ==========================================================================
   Alqima Urban — Process / Capabilities (homepage section, Stage 06)
   Deep Navy surface. Default = vertical editorial sequence with a progress
   rail (mobile, tablet, reduced motion, no JS). .is-pinned (process.js,
   desktop + motion) = pinned stage: active step expands, its image is
   mask-revealed, earlier images recede in depth, the rail fills.
   ========================================================================== */

.prc {
	position: relative;
	z-index: 1;
	padding-block: clamp(2rem, 5vw, 4rem) var(--s-section);
	overflow: clip;
}

/* ------------------------------------------------------------- Intro */
.prc__intro {
	display: grid;
	grid-template-columns: repeat(var(--grid-cols), minmax(0, 1fr));
	column-gap: var(--gutter);
	row-gap: var(--s-6);
	margin-block-start: clamp(3rem, 8vw, 8rem);
	align-items: end;
}

.prc__title {
	grid-column: 1 / -1;
	max-width: 14ch;
	font-size: clamp(2.5rem, 1.2rem + 5.6vw, 7rem);
	font-weight: var(--fw-semibold);
	letter-spacing: -0.05em;
	line-height: 0.96;
}

.prc__title .w {
	display: inline-block;
	overflow: hidden;
	vertical-align: top;
	padding-block: 0.06em 0.12em;
	margin-block: -0.06em -0.12em;
}

.prc__title .w > span {
	display: inline-block;
	will-change: transform;
}

.prc__lead {
	grid-column: 1 / -1;
	max-width: 38ch;
	font-size: var(--fs-lead);
	line-height: 1.5;
	color: var(--c-text-2);
}

/* ------------------------------------------------- Sequence (default) */
.prc__stage {
	position: relative;
	margin-block-start: clamp(4rem, 9vw, 8rem);
}

.prc__frame {
	position: relative;
}

/* Progress rail: hairline + beige fill driven by --p (0 → 1). */
.prc__rail {
	position: absolute;
	inset-block: 0;
	inset-inline-start: var(--margin);
	width: 1px;
	background: var(--c-hairline);
}

.prc__rail-fill {
	position: absolute;
	inset: 0;
	background: var(--c-accent);
	transform: scaleY(var(--p, 0));
	transform-origin: center top;
}

.prc .prc__steps {
	display: grid;
	gap: clamp(3.5rem, 9vw, 7rem);
	margin: 0;
	padding: 0;
	padding-inline-start: 2rem;
	list-style: none;
}

.prc-step {
	position: relative;
	display: grid;
	gap: var(--s-5);
}

/* Step marker on the rail. */
.prc-step::before {
	content: "";
	position: absolute;
	inset-block-start: 0.9em;
	inset-inline-start: calc(-2rem - 3px);
	width: 7px;
	height: 7px;
	background: var(--c-canvas);
	border: 1px solid var(--c-hairline-strong);
	transition: background-color var(--dur-3) var(--ease-soft), border-color var(--dur-3) var(--ease-soft);
}

.prc-step.is-in::before,
.prc-step.is-active::before {
	background: var(--c-accent);
	border-color: var(--c-accent);
}

.prc-step__media {
	order: 2;
	margin: 0;
}

.prc-step__clip {
	position: relative;
	aspect-ratio: 16 / 10;
	overflow: hidden;
	background: var(--c-surface-1);
}

.prc-step__img {
	position: absolute;
	inset: -4%;
	transition: transform 1.6s var(--ease-out);
}

.prc-step__pic,
.prc-step__img picture {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.prc-step__num {
	display: block;
	font-family: var(--f-latin);
	font-size: clamp(3rem, 2rem + 4.4vw, 5.5rem);
	font-weight: var(--fw-medium);
	letter-spacing: -0.04em;
	line-height: 0.9;
	color: var(--c-text-3);
	font-variant-numeric: tabular-nums;
}

.prc-step__title {
	margin-block-start: var(--s-3);
	font-size: clamp(1.75rem, 1.2rem + 2.2vw, 3.25rem);
	font-weight: var(--fw-medium);
	letter-spacing: -0.035em;
	line-height: 1.05;
}

.prc-step__desc {
	max-width: 40ch;
	margin-block-start: var(--s-4);
	font-size: var(--fs-lead);
	line-height: 1.5;
	color: var(--c-text-2);
}

.prc-step__support {
	margin-block-start: var(--s-4);
	font-size: var(--fs-label);
	font-weight: var(--fw-medium);
	letter-spacing: var(--tr-label);
	text-transform: uppercase;
	color: var(--c-text-3);
}

.prc-step__link {
	margin-block-start: var(--s-5);
}

.prc__counter {
	display: none;
}

/* ------------------------------------------------------- Capabilities */
.prc__caps {
	margin-block-start: clamp(6rem, 12vw, 12rem);
}

.prc__caps-label {
	padding-block-end: var(--s-4);
	font-size: var(--fs-label);
	font-weight: var(--fw-medium);
	letter-spacing: var(--tr-label);
	text-transform: uppercase;
	color: var(--c-text-3);
	border-block-end: 1px solid var(--c-hairline);
}

.prc .prc__caps-list {
	display: grid;
	column-gap: var(--gutter);
	margin: 0;
	padding: 0;
	list-style: none;
}

.prc-cap {
	border-block-end: 1px solid var(--c-hairline);
}

.prc-cap__inner {
	display: grid;
	grid-template-columns: 2.25rem minmax(0, 1fr) auto;
	align-items: baseline;
	gap: var(--s-4);
	min-height: 2.75rem;
	padding-block: clamp(0.9rem, 1.6vw, 1.4rem);
	color: inherit;
}

.prc-cap__num {
	font-family: var(--f-latin);
	font-size: var(--fs-micro);
	font-weight: var(--fw-medium);
	letter-spacing: 0.14em;
	color: var(--c-text-3);
}

.prc-cap__body {
	display: grid;
	gap: 0.35rem;
}

.prc-cap__name {
	font-size: clamp(1.25rem, 1rem + 1.05vw, 2.125rem);
	font-weight: var(--fw-medium);
	letter-spacing: -0.035em;
	line-height: 1.08;
	transition: transform 0.9s var(--ease-out), color var(--dur-3) var(--ease-soft);
}

.prc-cap__desc {
	max-width: 46ch;
	color: var(--c-text-2);
}

.prc-cap__support {
	font-size: var(--fs-label);
	letter-spacing: var(--tr-label);
	text-transform: uppercase;
	color: var(--c-text-3);
}

.prc-cap__arrow {
	font-size: 0.9375rem;
	color: var(--c-text-2);
	transition: transform 0.8s var(--ease-out), color var(--dur-3) var(--ease-soft);
}

@media (hover: hover) {
	a.prc-cap__inner:hover .prc-cap__name {
		transform: translateX(8px);
	}

	[dir="rtl"] a.prc-cap__inner:hover .prc-cap__name {
		transform: translateX(-8px);
	}

	a.prc-cap__inner:hover .prc-cap__arrow {
		color: var(--c-accent);   /* arrow movement: interactions.css */
	}
}

a.prc-cap__inner:focus-visible {
	outline-offset: 6px;
}

/* ============================================================== Tablet */
@media (min-width: 48em) {
	.prc__title {
		grid-column: 1 / span 6;
	}

	.prc__lead {
		grid-column: 1 / span 6;
	}

	.prc .prc__steps {
		padding-inline-start: 3rem;
	}

	.prc-step::before {
		inset-inline-start: calc(-3rem - 3px);
	}

	.prc-step {
		grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
		column-gap: var(--gutter);
		align-items: start;
	}

	.prc-step__media {
		order: 2;
	}

	.prc .prc__caps-list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	/* v1.1: three capabilities (the service categories) sit in one row. */
	.prc .prc__caps-list--3 {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

/* ============================================================= Desktop */
@media (min-width: 64em) {
	.prc__title {
		grid-column: 1 / span 8;
	}

	.prc__lead {
		grid-column: 9 / span 4;
		padding-block-end: 0.5em;
	}
}

/* -------------------------------------------- Pinned (process.js only) */
.prc.is-pinned .prc__stage {
	display: flex;
	align-items: center;
	min-height: 100svh;
	margin-block-start: 0;
	padding-block: calc(var(--header-h) + var(--s-5)) var(--s-6);
}

.prc.is-pinned .prc__frame {
	display: grid;
	grid-template-columns: repeat(var(--grid-cols), minmax(0, 1fr));
	column-gap: var(--gutter);
	align-items: center;
	width: 100%;
	height: min(66svh, 42rem);
	perspective: 1600px;
}

.prc.is-pinned .prc__rail {
	position: relative;
	inset: auto;
	grid-row: 1;
	grid-column: 8;
	justify-self: start;
	height: 100%;
}

.prc.is-pinned .prc__steps {
	grid-row: 1;
	grid-column: 8 / -1;
	gap: 0;
	padding-inline-start: 2.5rem;
}

.prc.is-pinned .prc-step {
	display: block;
	position: static;
	padding-block: 1rem;
	border-block-start: 1px solid var(--c-hairline);
}

.prc.is-pinned .prc-step:last-child {
	border-block-end: 1px solid var(--c-hairline);
}

.prc.is-pinned .prc-step::before {
	display: none;
}

.prc.is-pinned .prc-step__text {
	position: relative;
	display: grid;
	grid-template-columns: 2.75rem minmax(0, 1fr);
	column-gap: var(--s-4);
	align-items: baseline;
}

.prc.is-pinned .prc-step__num {
	font-size: var(--fs-micro);
	letter-spacing: 0.14em;
	line-height: 1;
	transition: color var(--dur-3) var(--ease-soft);
}

.prc.is-pinned .prc-step__title {
	margin: 0;
	font-size: clamp(1.375rem, 0.9rem + 1.2vw, 2.25rem);
	color: var(--c-text-3);
	transition: color var(--dur-3) var(--ease-soft), transform 0.9s var(--ease-out);
}

.prc.is-pinned .prc-step__more {
	grid-column: 2;
	max-height: 0;
	overflow: hidden;
	opacity: 0;
	transition: max-height 0.8s var(--ease-out), opacity 0.5s var(--ease-soft);
}

.prc.is-pinned .prc-step__desc {
	margin-block-start: var(--s-3);
	font-size: 1.0625rem;
}

/* Active step morph: number takes the accent, title brightens and steps
   forward, details open. */
.prc.is-pinned .prc-step.is-active .prc-step__num {
	color: var(--c-accent);
}

.prc.is-pinned .prc-step.is-active .prc-step__title {
	color: var(--c-text);
	transform: translateX(6px);
}

[dir="rtl"] .prc.is-pinned .prc-step.is-active .prc-step__title {
	transform: translateX(-6px);
}

.prc.is-pinned .prc-step.is-active .prc-step__more {
	max-height: 18rem;
	opacity: 1;
}

/* Images: one shared column (start side), stacked in depth. */
.prc.is-pinned .prc-step__media {
	position: absolute;
	inset-block: 0;
	inset-inline-start: var(--margin);   /* abs. children use the padding box */
	width: calc((100% - 2 * var(--margin) - 11 * var(--gutter)) / 12 * 6 + 5 * var(--gutter));
	pointer-events: none;
}

.prc.is-pinned .prc-step__clip {
	height: 100%;
	aspect-ratio: auto;
	clip-path: inset(100% 0% 0% 0%);
	transform-origin: 50% 100%;
	transition: clip-path 1.2s var(--ease-out), transform 1.2s var(--ease-out), filter 1.2s var(--ease-out);
}

.prc.is-pinned .prc-step__img {
	transform: scale(1.1);
}

.prc.is-pinned .prc-step.is-active .prc-step__clip {
	clip-path: inset(0% 0% 0% 0%);
}

.prc.is-pinned .prc-step.is-active .prc-step__img {
	transform: scale(1);
}

/* Earlier steps recede: smaller, set back, darker (2.5D depth). */
.prc.is-pinned .prc-step.is-past .prc-step__clip {
	clip-path: inset(0% 0% 0% 0%);
	transform: translate3d(0, -2.5%, -60px) scale(0.93);
	filter: brightness(0.5) saturate(0.8);
}

/* Large active number layered in front of the image edge — half over the
   picture, half on the navy (depth separation, 2.5D). */
.prc.is-pinned .prc__counter {
	position: absolute;
	inset-block-end: -0.1em;
	inset-inline-start: calc(var(--margin) + (100% - 2 * var(--margin) - 11 * var(--gutter)) / 12 * 6 + 5 * var(--gutter));
	z-index: 2;
	display: flex;
	flex-direction: column;
	align-items: flex-end;
	gap: 0.35rem;
	margin: 0;
	font-family: var(--f-latin);
	font-size: var(--fs-micro);
	letter-spacing: 0.16em;
	color: var(--c-text-3);
	transform: translateX(-58%);
	pointer-events: none;
}

[dir="rtl"] .prc.is-pinned .prc__counter {
	align-items: flex-start;
	transform: translateX(58%);
}

.prc.is-pinned .prc__counter [data-prc-current] {
	display: block;
	font-size: clamp(5rem, 3rem + 6vw, 9.5rem);
	font-weight: var(--fw-medium);
	letter-spacing: -0.05em;
	line-height: 0.85;
	color: var(--c-text);
}

/* ================================================== Pre-reveal states */
@media (prefers-reduced-motion: no-preference) {
	html.js [data-prc] [data-prc-reveal]:not(.is-in),
	html.js [data-prc]:not(.is-pinned) .prc-step:not(.is-in) [data-prc-reveal-step] {
		opacity: 0;
		transform: translateY(var(--reveal-y));
	}

	html.js [data-prc] [data-prc-reveal],
	html.js [data-prc] [data-prc-reveal-step] {
		transition: opacity var(--reveal-fade) var(--ease-soft), transform var(--reveal-move) var(--ease-out);
		transition-delay: calc(var(--d, 0) * var(--reveal-stagger));
	}

	/* Vertical sequence: images open with a mask as they arrive. */
	html.js [data-prc]:not(.is-pinned) .prc-step:not(.is-in) .prc-step__clip {
		clip-path: inset(100% 0% 0% 0%);
	}

	html.js [data-prc]:not(.is-pinned) .prc-step__clip {
		transition: clip-path 1.3s var(--ease-out);
	}
}

@media (prefers-reduced-motion: reduce) {
	.prc-step__img,
	.prc-step__clip,
	.prc-cap__name,
	.prc-cap__arrow {
		transition: none;
	}
}

/* ================================================================ Arabic */
[dir="rtl"] .prc__title {
	letter-spacing: 0;
	line-height: 1.28;
	font-size: clamp(2.25rem, 1.1rem + 4.6vw, 6rem);
}

[dir="rtl"] .prc__title .w {
	padding-block: 0.12em 0.18em;
	margin-block: -0.12em -0.18em;
}

[dir="rtl"] .prc__lead,
[dir="rtl"] .prc-step__desc {
	line-height: 1.8;
}

[dir="rtl"] .prc-step__title,
[dir="rtl"] .prc-cap__name {
	letter-spacing: 0;
	line-height: 1.4;
}

[dir="rtl"] .prc-step__support,
[dir="rtl"] .prc__caps-label,
[dir="rtl"] .prc-cap__support {
	text-transform: none;
	letter-spacing: 0;
	font-size: 0.875rem;
}

[dir="rtl"] [lang="en"].prc-step__title,
[dir="rtl"] [lang="en"].prc-cap__name {
	font-family: var(--f-latin);
	letter-spacing: -0.035em;
}