/* ══════════════════════════════════════════════════════════════════
   CASOS DE ESTUDIO · KODA STUDIO
   Aesthetic direction: Editorial-magazine premium
   Palette: bone / obsidian / slate (matching site DNA)
   Type: Playfair Display (display) + Inter (body)
   ══════════════════════════════════════════════════════════════════ */

/* ───── Layout primitives ───── */

.casos-main {
	background: var(--color-bone);
	color: var(--color-ink);
	overflow-x: hidden;
}

/* ============ ÍNDICE: /casos/ ============ */

.casos-index-hero {
	padding: clamp(180px, 22vw, 260px) 0 clamp(80px, 10vw, 140px);
	background: var(--color-obsidian);
	color: var(--color-bone);
	position: relative;
	overflow: hidden;
}

.casos-index-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background:
		radial-gradient(ellipse 80% 50% at 50% 0%, rgba(91, 107, 124, 0.15), transparent 70%),
		linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
	pointer-events: none;
}

.casos-index-hero .container {
	position: relative;
	z-index: 1;
}

.casos-index-hero .eyebrow {
	color: var(--fg-on-dark-faint);
	display: block;
	margin-bottom: 28px;
}

.casos-index-hero h1 {
	font-family: var(--font-display);
	font-size: clamp(2.5rem, 6vw, 5.5rem);
	line-height: 1.05;
	letter-spacing: var(--tracking-tight);
	color: var(--fg-on-dark);
	margin: 0 0 32px;
	font-weight: 400;
	max-width: 18ch;
}

.casos-index-hero h1 em {
	font-style: italic;
	color: var(--fg-on-dark-soft);
}

.casos-index-hero .hero-sub {
	font-family: var(--font-body);
	font-size: clamp(15px, 1.4vw, 18px);
	line-height: 1.7;
	color: var(--fg-on-dark-mid);
	max-width: 60ch;
	font-weight: 300;
	margin: 0;
}

.casos-index-hero .meta-line {
	display: flex;
	gap: 24px;
	flex-wrap: wrap;
	margin-top: clamp(40px, 6vw, 64px);
	font-family: var(--font-body);
	font-size: var(--text-2xs);
	font-weight: 500;
	letter-spacing: var(--tracking-label);
	text-transform: uppercase;
	color: var(--fg-on-dark-faint);
}

.casos-index-hero .meta-line .sep {
	color: rgba(255, 255, 255, 0.2);
}

/* ───── Casos · listado editorial ───── */

.casos-list-section {
	padding: clamp(4rem, 10vh, 8rem) 0;
	background: var(--color-bone);
}

.casos-list {
	display: grid;
	gap: 0;
}

.case-row {
	display: grid;
	grid-template-columns: 80px 1fr 1.2fr 60px;
	gap: 2.5rem;
	padding: 2.5rem 0;
	border-top: 1px solid var(--color-border);
	text-decoration: none;
	color: inherit;
	transition:
		background 0.4s ease,
		padding 0.4s ease;
	align-items: start;
	position: relative;
}

.case-row:last-child {
	border-bottom: 1px solid var(--color-border);
}

.case-row:hover {
	background: var(--color-stone);
	padding-left: 1.5rem;
	padding-right: 1.5rem;
}

.case-row .case-idx {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
	padding-top: 0.5rem;
}

.case-row .case-meta-left {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
}

.case-row .case-sector {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--color-slate);
	font-weight: 500;
}

.case-row .case-location {
	font-family: var(--font-body);
	font-size: var(--text-sm);
	color: var(--color-ink-soft);
}

.case-row h2 {
	font-family: var(--font-display);
	font-size: clamp(1.5rem, 2.8vw, 2.5rem);
	line-height: 1.05;
	font-weight: 400;
	letter-spacing: -0.01em;
	color: var(--color-ink);
	margin: 0 0 0.75rem;
}

.case-row h2 em {
	font-style: italic;
	color: var(--color-slate);
}

.case-row .case-tagline {
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: 1.55;
	color: var(--color-ink-soft);
	font-weight: 400;
	max-width: 50ch;
}

.case-row .case-arrow {
	font-size: 1.75rem;
	color: var(--color-ink-muted);
	transition:
		transform 0.4s ease,
		color 0.4s ease;
	padding-top: 0.5rem;
	text-align: right;
	font-weight: 300;
}

.case-row:hover .case-arrow {
	transform: translateX(8px);
	color: var(--color-slate);
}

@media (max-width: 880px) {
	.case-row {
		grid-template-columns: 60px 1fr 40px;
	}

	.case-row .case-meta-left {
		grid-column: 2;
		margin-bottom: 0.5rem;
	}

	.case-row .case-content {
		grid-column: 2;
	}

	.case-row .case-arrow {
		grid-column: 3;
	}
}

/* ============ CASO INDIVIDUAL ============ */

.caso-article {
	background: var(--color-bone);
}

/* ─── Hero del caso ─── */

.caso-hero {
	padding: clamp(180px, 22vw, 260px) 0 clamp(80px, 10vw, 140px);
	background: var(--color-obsidian);
	color: var(--fg-on-dark);
	position: relative;
	overflow: hidden;
}

.caso-hero::after {
	content: "";
	position: absolute;
	inset: 0;
	background:
		radial-gradient(ellipse 80% 60% at 30% 30%, rgba(91, 107, 124, 0.12) 0%, transparent 70%),
		radial-gradient(ellipse 60% 50% at 80% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 60%);
	pointer-events: none;
}

.caso-hero .container {
	position: relative;
	z-index: var(--z-base);
}

.caso-hero .back-link {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-body);
	font-size: var(--text-2xs);
	font-weight: 500;
	letter-spacing: var(--tracking-label);
	text-transform: uppercase;
	color: var(--fg-on-dark-faint);
	text-decoration: none;
	margin-bottom: clamp(40px, 5vw, 64px);
	transition: color 0.3s ease;
}

.caso-hero .back-link:hover {
	color: var(--fg-on-dark);
}

.caso-hero .caso-tag {
	font-family: var(--font-body);
	font-size: var(--text-2xs);
	font-weight: 500;
	letter-spacing: var(--tracking-label);
	text-transform: uppercase;
	color: var(--fg-on-dark-faint);
	margin-bottom: 28px;
	display: inline-flex;
	align-items: center;
	gap: 1rem;
}

.caso-hero .caso-tag::before {
	content: "";
	width: 36px;
	height: 1px;
	background: var(--fg-on-dark-faint);
}

.caso-hero h1 {
	font-family: var(--font-display);
	font-size: clamp(2.5rem, 6vw, 5.5rem);
	line-height: 1.05;
	letter-spacing: var(--tracking-tight);
	font-weight: 400;
	margin: 0 0 32px;
	color: var(--fg-on-dark);
	max-width: 14ch;
}

.caso-hero h1 em {
	font-style: italic;
	color: var(--fg-on-dark-soft);
}

.caso-hero .caso-lede {
	font-family: var(--font-body);
	font-size: clamp(15px, 1.4vw, 18px);
	line-height: 1.7;
	color: var(--fg-on-dark-mid);
	max-width: 56ch;
	font-weight: 300;
	margin: 0;
}

/* ─── Datos del caso (sidebar style row) ─── */

.caso-datos {
	padding: clamp(2.5rem, 5vw, 4rem) 0;
	background: var(--color-obsidian);
	color: var(--fg-on-dark);
	border-top: 1px solid rgba(245, 242, 237, 0.08);
	border-bottom: 1px solid rgba(245, 242, 237, 0.08);
}

.caso-datos-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: clamp(2rem, 4vw, 3.5rem);
}

.caso-dato {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
}

.caso-dato .label {
	font-family: var(--font-body);
	font-size: var(--text-2xs);
	font-weight: 500;
	letter-spacing: var(--tracking-label);
	text-transform: uppercase;
	color: var(--fg-on-dark-faint);
}

.caso-dato .value {
	font-family: var(--font-display);
	font-size: clamp(1.5rem, 2.4vw, 2.25rem);
	line-height: 1.05;
	font-weight: 400;
	color: var(--fg-on-dark);
	letter-spacing: -0.01em;
}

.caso-dato .value.small {
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: 1.4;
	letter-spacing: 0;
	color: var(--fg-on-dark-soft);
	font-weight: 400;
}

@media (max-width: 880px) {
	.caso-datos-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 2rem 2.5rem;
	}
}

/* ─── Hero image (full-bleed) ─── */

.caso-hero-image {
	padding: clamp(2rem, 6vh, 4rem) 0;
	background: var(--color-bone);
}

.caso-hero-image figure {
	margin: 0;
	max-width: 1400px;
	margin-inline: auto;
	padding: 0 clamp(1rem, 4vw, 2rem);
}

.caso-hero-image .frame {
	background: var(--color-stone);
	padding: clamp(1.5rem, 4vw, 3rem);
	border: 1px solid var(--color-border);
	position: relative;
}

.caso-hero-image .frame::before {
	content: "";
	position: absolute;
	top: 8px;
	left: 8px;
	right: 8px;
	bottom: 8px;
	border: 1px solid var(--color-border-soft);
	pointer-events: none;
}

.caso-hero-image img {
	display: block;
	width: 100%;
	height: auto;
	max-height: 70vh;
	object-fit: cover;
	object-position: top center;
}

.caso-hero-image figcaption {
	margin-top: 1.25rem;
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
	display: flex;
	justify-content: space-between;
	align-items: center;
}

/* ─── Cuerpo editorial ─── */

.caso-body {
	padding: clamp(4rem, 10vh, 8rem) 0;
}

.caso-body .container {
	max-width: 1100px;
}

.caso-section {
	display: grid;
	grid-template-columns: 220px 1fr;
	gap: 4rem;
	margin-bottom: clamp(3rem, 8vh, 6rem);
	align-items: start;
}

.caso-section .section-label {
	position: sticky;
	top: 120px;
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--color-slate);
	font-weight: 500;
}

.caso-section .section-label::before {
	content: "";
	display: block;
	width: 48px;
	height: 1px;
	background: var(--color-slate);
	margin-bottom: 0.75rem;
}

.caso-section .section-content h2 {
	font-family: var(--font-display);
	font-size: clamp(2rem, 4vw, 3.25rem);
	line-height: 1.05;
	font-weight: 400;
	letter-spacing: -0.015em;
	color: var(--color-ink);
	margin: 0 0 1.5rem;
	max-width: 22ch;
}

.caso-section .section-content h2 em {
	font-style: italic;
	color: var(--color-slate);
}

.caso-section .section-content p {
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: 1.7;
	color: var(--color-ink-soft);
	margin: 0 0 1.25rem;
	max-width: 62ch;
}

.caso-section .section-content p strong {
	color: var(--color-ink);
	font-weight: 600;
}

.caso-section .section-content ul,
.caso-section .section-content ol {
	font-family: var(--font-body);
	font-size: var(--text-base);
	line-height: 1.7;
	color: var(--color-ink-soft);
	margin: 0 0 1.5rem;
	padding-left: 1.5rem;
	max-width: 60ch;
}

.caso-section .section-content li {
	margin-bottom: 0.6rem;
}

.caso-section .section-content li strong {
	color: var(--color-ink);
	font-weight: 600;
}

@media (max-width: 980px) {
	.caso-section {
		grid-template-columns: 1fr;
		gap: 1.5rem;
	}

	.caso-section .section-label {
		position: static;
	}
}

/* ─── Pull-quote (cita destacada) ─── */

.caso-pullquote {
	padding: clamp(4rem, 8vh, 6rem) 0;
	background: var(--color-stone);
	border-top: 1px solid var(--color-border);
	border-bottom: 1px solid var(--color-border);
	margin: clamp(3rem, 6vh, 5rem) 0;
}

.caso-pullquote blockquote {
	font-family: var(--font-display);
	font-size: clamp(1.75rem, 3.5vw, 3rem);
	line-height: 1.18;
	font-weight: 400;
	letter-spacing: -0.01em;
	color: var(--color-ink);
	margin: 0;
	max-width: 26ch;
	font-style: italic;
	position: relative;
}

.caso-pullquote blockquote::before {
	content: "“";
	position: absolute;
	top: -2.5rem;
	left: -1.5rem;
	font-size: 6rem;
	color: var(--color-slate);
	font-family: var(--font-display);
	font-style: normal;
	opacity: 0.4;
	line-height: 1;
}

.caso-pullquote .author {
	margin-top: 2rem;
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.caso-pullquote .author .name {
	font-family: var(--font-body);
	font-size: var(--text-sm);
	font-weight: 600;
	color: var(--color-ink);
	letter-spacing: 0.02em;
}

.caso-pullquote .author .role {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
}

/* ─── Bloque resultados (KPIs) ─── */

.caso-resultados {
	padding: clamp(4rem, 8vh, 6rem) 0;
	background: var(--color-obsidian);
	color: var(--color-bone);
	margin: clamp(3rem, 6vh, 5rem) 0;
	position: relative;
	overflow: hidden;
}

.caso-resultados::before {
	content: "";
	position: absolute;
	inset: 0;
	background: radial-gradient(circle at 80% 30%, rgba(91, 107, 124, 0.18), transparent 60%);
	pointer-events: none;
}

.caso-resultados .container {
	position: relative;
	z-index: 1;
}

.caso-resultados .res-header {
	margin-bottom: 3rem;
	display: flex;
	justify-content: space-between;
	align-items: end;
	gap: 2rem;
}

.caso-resultados .eyebrow {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--color-slate-pale);
	margin-bottom: 0.75rem;
}

.caso-resultados h2 {
	font-family: var(--font-display);
	font-size: clamp(2rem, 4vw, 3.5rem);
	line-height: 1;
	font-weight: 400;
	letter-spacing: -0.015em;
	color: var(--color-bone);
	margin: 0;
}

.caso-resultados h2 em {
	font-style: italic;
	color: var(--fg-on-dark-soft);
}

.caso-resultados .res-period {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--color-slate-pale);
}

.caso-resultados-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0;
	border-top: 1px solid rgba(245, 242, 237, 0.18);
}

.caso-kpi {
	padding: 2.5rem 2rem;
	border-right: 1px solid rgba(245, 242, 237, 0.18);
	border-bottom: 1px solid rgba(245, 242, 237, 0.18);
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.caso-kpi:nth-child(3n) {
	border-right: none;
}

.caso-kpi .kpi-label {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--color-slate-pale);
	order: 2;
}

.caso-kpi .kpi-value {
	font-family: var(--font-display);
	font-size: clamp(2.5rem, 5vw, 4rem);
	line-height: 0.95;
	font-weight: 400;
	letter-spacing: -0.02em;
	color: var(--color-bone);
	order: 1;
}

.caso-kpi .kpi-value em {
	font-style: italic;
	color: var(--fg-on-dark-soft);
}

.caso-kpi .kpi-detail {
	font-family: var(--font-body);
	font-size: var(--text-sm);
	color: var(--color-slate-pale);
	line-height: 1.5;
	order: 3;
}

@media (max-width: 880px) {
	.caso-resultados-grid {
		grid-template-columns: 1fr;
	}

	.caso-kpi {
		border-right: none;
	}

	.caso-resultados .res-header {
		flex-direction: column;
		align-items: flex-start;
	}
}

/* ─── Galería de capturas ─── */

.caso-galeria {
	padding: clamp(4rem, 8vh, 6rem) 0;
}

.caso-galeria .eyebrow {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--color-slate);
	margin-bottom: 1.5rem;
	display: inline-block;
}

.caso-galeria h2 {
	font-family: var(--font-display);
	font-size: clamp(2rem, 4vw, 3rem);
	line-height: 1.05;
	font-weight: 400;
	letter-spacing: -0.015em;
	margin: 0 0 3rem;
	max-width: 22ch;
	color: var(--color-ink);
}

.caso-galeria h2 em {
	font-style: italic;
	color: var(--color-slate);
}

.galeria-grid {
	display: grid;
	grid-template-columns: 2fr 1fr;
	gap: 1.25rem;
	margin-bottom: 1.25rem;
}

.galeria-grid.flip {
	grid-template-columns: 1fr 2fr;
}

.galeria-item {
	background: var(--color-stone);
	border: 1px solid var(--color-border);
	padding: 1.25rem;
	position: relative;
}

.galeria-item img {
	display: block;
	width: 100%;
	height: auto;
	max-height: 480px;
	object-fit: cover;
}

.galeria-item .cap {
	margin-top: 0.85rem;
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
	display: flex;
	justify-content: space-between;
}

@media (max-width: 880px) {
	.galeria-grid,
	.galeria-grid.flip {
		grid-template-columns: 1fr;
	}
}

/* ─── CTA inline ─── */

.caso-cta-inline {
	padding: clamp(3rem, 6vh, 5rem) 0;
	border-top: 1px solid var(--color-border);
	border-bottom: 1px solid var(--color-border);
	background: var(--color-bone);
	margin: clamp(3rem, 6vh, 5rem) 0;
}

.caso-cta-inline .container {
	display: grid;
	grid-template-columns: 1.5fr 1fr;
	gap: 3rem;
	align-items: center;
}

.caso-cta-inline .cta-eyebrow {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--color-slate);
	margin-bottom: 1rem;
	display: block;
}

.caso-cta-inline h2 {
	font-family: var(--font-display);
	font-size: clamp(1.75rem, 3vw, 2.5rem);
	line-height: 1.1;
	font-weight: 400;
	letter-spacing: -0.01em;
	margin: 0;
	color: var(--color-ink);
}

.caso-cta-inline h2 em {
	font-style: italic;
	color: var(--color-slate);
}

.caso-cta-inline .cta-btn {
	background: var(--color-ink);
	color: var(--color-bone);
	border: none;
	padding: 1.25rem 2rem;
	font-family: var(--font-body);
	font-size: var(--text-sm);
	letter-spacing: 0.1em;
	text-transform: uppercase;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	transition: background 0.3s ease;
	font-weight: 500;
	justify-self: end;
}

.caso-cta-inline .cta-btn:hover {
	background: var(--color-slate);
}

.caso-cta-inline .cta-btn .arr {
	font-size: 1.1rem;
	transition: transform 0.3s ease;
}

.caso-cta-inline .cta-btn:hover .arr {
	transform: translateX(4px);
}

@media (max-width: 880px) {
	.caso-cta-inline .container {
		grid-template-columns: 1fr;
		gap: 2rem;
	}

	.caso-cta-inline .cta-btn {
		justify-self: start;
	}
}

/* ─── Next case (footer del caso) ─── */

.caso-next {
	padding: clamp(5rem, 10vh, 8rem) 0;
	background: var(--color-obsidian);
	color: var(--color-bone);
	position: relative;
	overflow: hidden;
}

.caso-next::before {
	content: "";
	position: absolute;
	inset: 0;
	background: radial-gradient(ellipse at 50% 100%, rgba(91, 107, 124, 0.15), transparent 70%);
	pointer-events: none;
}

.caso-next .container {
	position: relative;
	z-index: 1;
}

.caso-next .eyebrow {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--color-slate-pale);
	margin-bottom: 1.5rem;
	display: inline-block;
}

.caso-next-link {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 3rem;
	padding: 2rem 0;
	text-decoration: none;
	color: inherit;
	border-top: 1px solid rgba(245, 242, 237, 0.18);
	transition:
		padding 0.4s ease,
		background 0.4s ease;
	align-items: center;
}

.caso-next-link:last-child {
	border-bottom: 1px solid rgba(245, 242, 237, 0.18);
}

.caso-next-link:hover {
	padding-left: 1rem;
	padding-right: 1rem;
	background: rgba(245, 242, 237, 0.04);
}

.caso-next-link .next-meta {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.caso-next-link .next-tag {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--color-slate-pale);
}

.caso-next-link h3 {
	font-family: var(--font-display);
	font-size: clamp(1.5rem, 2.8vw, 2.5rem);
	line-height: 1.05;
	font-weight: 400;
	letter-spacing: -0.01em;
	margin: 0;
	color: var(--color-bone);
}

.caso-next-link h3 em {
	font-style: italic;
	color: var(--fg-on-dark-soft);
}

.caso-next-link .next-arr {
	font-size: 2rem;
	color: var(--color-slate-pale);
	transition: transform 0.4s ease;
	font-weight: 300;
}

.caso-next-link:hover .next-arr {
	transform: translateX(10px);
	color: var(--color-bone);
}

/* ─── Stagger animation entrance ─── */

@keyframes caso-fade-up {
	from {
		opacity: 0;
		transform: translateY(24px);
	}

	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.caso-fade-up {
	opacity: 0;
	animation: caso-fade-up 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}

.caso-fade-up.d1 {
	animation-delay: 0.15s;
}

.caso-fade-up.d2 {
	animation-delay: 0.3s;
}

.caso-fade-up.d3 {
	animation-delay: 0.45s;
}

.caso-fade-up.d4 {
	animation-delay: 0.6s;
}

@media (prefers-reduced-motion: reduce) {
	.caso-fade-up {
		animation: none;
		opacity: 1;
	}
}