/* Fusium — étude de cas B2B */

.fs-case {
	--fs-bg: #0e0c18;
	--fs-bg-alt: #141018;
	--fs-card: rgba(255, 255, 255, 0.04);
	--fs-border: rgba(255, 255, 255, 0.08);
	--fs-accent: #e85d04;
	--fs-accent-dark: #dc2f02;
	--fs-accent-soft: rgba(232, 93, 4, 0.15);
	--fs-text: #f1f5f9;
	--fs-muted: #c9ceda;
	background: var(--fs-bg);
	color: var(--fs-text);
}

[data-theme="light"] .fs-case {
	--fs-bg: #faf9f7;
	--fs-bg-alt: #f0eeea;
	--fs-card: #fff;
	--fs-border: rgba(232, 93, 4, 0.12);
	--fs-text: #1e293b;
	--fs-muted: #64748b;
}

.fs-container {
	max-width: var(--layout-max-width);
	margin: 0 auto;
	padding: 0 var(--layout-pad-x);
	box-sizing: border-box;
}

/* Hero */

.fs-hero {
	position: relative;
	overflow: hidden;
	padding: 3rem var(--layout-pad-x) 4rem;
	background:
		radial-gradient(ellipse 70% 60% at 85% 15%, rgba(232, 93, 4, 0.22) 0%, transparent 55%),
		radial-gradient(ellipse 50% 40% at 5% 85%, rgba(90, 95, 202, 0.15) 0%, transparent 50%),
		linear-gradient(160deg, #0e0c18 0%, #1a1210 45%, #120e0c 100%);
}

.fs-hero-inner {
	max-width: var(--layout-max-width);
	margin: 0 auto;
	display: grid;
	gap: 2.5rem;
	align-items: center;
}

@media (min-width: 960px) {
	.fs-hero-inner {
		grid-template-columns: 1fr 1fr;
		gap: 3rem;
	}
}

.fs-back-link {
	display: inline-block;
	margin-bottom: 1rem;
	color: rgba(255, 255, 255, 0.7);
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
}

.fs-back-link:hover { color: #fff; text-decoration: underline; }

.fs-status-badge {
	display: inline-block;
	margin-bottom: 0.75rem;
	padding: 0.3rem 0.85rem;
	border-radius: 9999px;
	background: rgba(232, 93, 4, 0.15);
	border: 1px solid rgba(232, 93, 4, 0.4);
	color: #ffb380;
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

.fs-kicker {
	font-size: 0.78rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: rgba(255, 255, 255, 0.65);
	margin: 0 0 0.75rem;
}

.fs-hero-title {
	font-size: clamp(2.25rem, 5vw, 3rem);
	font-weight: 800;
	letter-spacing: -0.03em;
	line-height: 1.05;
	margin: 0 0 0.35rem;
	color: #fff;
}

.fs-hero-location {
	font-size: 0.95rem;
	color: rgba(255, 180, 120, 0.9);
	margin: 0 0 0.75rem;
	font-weight: 600;
}

.fs-hero-subtitle {
	font-size: 1.1rem;
	line-height: 1.55;
	color: rgba(255, 255, 255, 0.88);
	margin: 0 0 1.25rem;
	max-width: 34rem;
}

.fs-pills {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	list-style: none;
	margin: 0 0 1.25rem;
	padding: 0;
}

.fs-pills li {
	padding: 0.35rem 0.8rem;
	border-radius: 9999px;
	background: rgba(255, 255, 255, 0.08);
	border: 1px solid rgba(255, 255, 255, 0.12);
	font-size: 0.75rem;
	font-weight: 600;
	color: rgba(255, 255, 255, 0.9);
}

.fs-hero-intro {
	font-size: 0.95rem;
	line-height: 1.7;
	color: rgba(255, 255, 255, 0.72);
	margin: 0 0 1.5rem;
	max-width: 36rem;
}

.fs-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.65rem;
}

.fs-btn {
	display: inline-flex;
	align-items: center;
	padding: 0.65rem 1.25rem;
	border-radius: 9999px;
	font-weight: 600;
	font-size: 0.9rem;
	text-decoration: none;
	transition: background 0.2s, transform 0.15s, border-color 0.2s;
	border: 1px solid transparent;
	cursor: pointer;
}

.fs-btn--primary {
	background: var(--fs-accent);
	color: #fff;
}

.fs-btn--primary:hover {
	background: var(--fs-accent-dark);
	color: #fff;
	transform: translateY(-1px);
}

.fs-btn--ghost {
	background: rgba(255, 255, 255, 0.08);
	color: #fff;
	border-color: rgba(255, 255, 255, 0.2);
}

.fs-btn--ghost:hover {
	background: rgba(255, 255, 255, 0.14);
	color: #fff;
}

.fs-btn--on-accent.fs-btn--primary {
	background: #fff;
	color: var(--fs-accent-dark);
}

.fs-btn--on-accent.fs-btn--ghost {
	background: rgba(255, 255, 255, 0.12);
	color: #fff;
	border-color: rgba(255, 255, 255, 0.35);
}

/* Hero visual */

.fs-hero-visual {
	position: relative;
	min-height: 300px;
}

.fs-mockup-desktop {
	border-radius: 0.75rem;
	overflow: hidden;
	box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
	position: relative;
	z-index: 2;
}

.fs-mockup-desktop img { display: block; width: 100%; height: auto; }

.fs-hero-ad {
	position: absolute;
	border-radius: 0.5rem;
	overflow: hidden;
	box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
	opacity: 0.85;
	z-index: 1;
}

.fs-hero-ad img { display: block; max-width: 100%; height: auto; }

.fs-hero-ad--back {
	top: -8%;
	left: -5%;
	width: 38%;
	transform: rotate(-6deg);
}

.fs-hero-ad--side {
	bottom: 5%;
	right: -8%;
	width: 32%;
	transform: rotate(4deg);
	z-index: 3;
}

.fs-hero-ad--banner {
	bottom: -12%;
	left: 5%;
	right: 5%;
	z-index: 4;
	opacity: 0.95;
}

/* Sections */

.fs-section {
	padding: 4rem 0;
}

.fs-section:nth-child(even) {
	background: var(--fs-bg-alt);
}

.fs-section-title {
	font-size: clamp(1.5rem, 3vw, 2rem);
	font-weight: 800;
	letter-spacing: -0.02em;
	margin: 0 0 1rem;
	color: var(--fs-text);
}

.fs-section-lead {
	font-size: 1.05rem;
	line-height: 1.7;
	color: var(--fs-muted);
	margin: 0 0 2rem;
	max-width: 42rem;
}

/* Summary */

.fs-summary-grid {
	display: grid;
	gap: 1rem;
}

@media (min-width: 640px) {
	.fs-summary-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
	.fs-summary-grid { grid-template-columns: repeat(4, 1fr); }
}

.fs-summary-item {
	padding: 1.25rem;
	border-radius: 0.85rem;
	background: var(--fs-card);
	border: 1px solid var(--fs-border);
}

.fs-summary-label {
	display: block;
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--fs-accent);
	margin-bottom: 0.4rem;
}

.fs-summary-value {
	font-size: 0.95rem;
	line-height: 1.5;
	font-weight: 600;
	color: var(--fs-text);
	margin: 0;
}

/* Context */

.fs-context-grid {
	display: grid;
	gap: 2rem;
	align-items: start;
}

@media (min-width: 768px) {
	.fs-context-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

.fs-context-text h2 {
	font-size: 1.75rem;
	font-weight: 800;
	margin: 0 0 1rem;
	color: var(--fs-text);
}

.fs-context-text p {
	font-size: 1rem;
	line-height: 1.75;
	color: var(--fs-muted);
	margin: 0;
}

.fs-enjeux-grid {
	display: grid;
	gap: 0.75rem;
}

@media (min-width: 480px) {
	.fs-enjeux-grid { grid-template-columns: repeat(2, 1fr); }
}

.fs-enjeu-card {
	padding: 1.25rem;
	border-radius: 0.85rem;
	background: linear-gradient(165deg, var(--fs-card) 0%, rgba(232, 93, 4, 0.06) 100%);
	border: 1px solid var(--fs-border);
}

.fs-enjeu-card h3 {
	font-size: 0.95rem;
	font-weight: 700;
	margin: 0 0 0.35rem;
	color: var(--fs-text);
}

.fs-enjeu-card p {
	font-size: 0.85rem;
	line-height: 1.55;
	color: var(--fs-muted);
	margin: 0;
}

/* Challenge */

.fs-challenge-grid {
	display: grid;
	gap: 1rem;
}

@media (min-width: 768px) {
	.fs-challenge-grid { grid-template-columns: repeat(2, 1fr); }
}

.fs-challenge-card {
	padding: 1.5rem;
	border-radius: 1rem;
	background: var(--fs-card);
	border: 1px solid var(--fs-border);
}

.fs-challenge-card h3 {
	font-size: 1rem;
	font-weight: 700;
	margin: 0 0 0.5rem;
	color: var(--fs-accent);
}

.fs-challenge-card p {
	font-size: 0.9rem;
	line-height: 1.6;
	color: var(--fs-muted);
	margin: 0;
}

/* Approach timeline */

.fs-approach-track {
	display: grid;
	gap: 1.5rem;
	list-style: none;
	margin: 0;
	padding: 0;
	position: relative;
}

@media (min-width: 768px) {
	.fs-approach-track {
		grid-template-columns: repeat(4, 1fr);
		gap: 0;
	}

	.fs-approach-track::before {
		content: '';
		position: absolute;
		top: 1.25rem;
		left: 12.5%;
		right: 12.5%;
		height: 2px;
		background: linear-gradient(90deg, var(--fs-accent), rgba(232, 93, 4, 0.4));
		z-index: 0;
	}
}

.fs-approach-step {
	text-align: center;
	padding: 0 0.5rem;
}

.fs-approach-dot {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 2.5rem;
	height: 2.5rem;
	margin: 0 auto 1rem;
	border-radius: 9999px;
	background: var(--fs-accent);
	color: #fff;
	font-size: 0.85rem;
	font-weight: 700;
	box-shadow: 0 0 16px rgba(232, 93, 4, 0.35);
	position: relative;
	z-index: 1;
}

.fs-approach-step h3 {
	font-size: 0.95rem;
	font-weight: 700;
	margin: 0 0 0.35rem;
	color: var(--fs-text);
}

.fs-approach-step p {
	font-size: 0.85rem;
	line-height: 1.55;
	color: var(--fs-muted);
	margin: 0;
}

/* Mandat accordions */

.fs-mandat-accordions {
	display: grid;
	gap: 0.65rem;
}

.fs-mandat-block {
	border-radius: 0.85rem;
	background: var(--fs-card);
	border: 1px solid var(--fs-border);
	overflow: hidden;
}

.fs-mandat-block[open] {
	border-color: rgba(232, 93, 4, 0.35);
}

.fs-mandat-summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1.15rem 1.25rem;
	cursor: pointer;
	font-weight: 700;
	font-size: 1rem;
	color: var(--fs-text);
	list-style: none;
}

.fs-mandat-summary::-webkit-details-marker { display: none; }

.fs-mandat-summary::after {
	content: '+';
	font-size: 1.25rem;
	color: var(--fs-accent);
	font-weight: 400;
}

.fs-mandat-block[open] .fs-mandat-summary::after { content: '−'; }

.fs-mandat-body {
	padding: 0 1.25rem 1.25rem;
	border-top: 1px solid var(--fs-border);
}

.fs-mandat-body p {
	font-size: 0.95rem;
	line-height: 1.65;
	color: var(--fs-muted);
	margin: 1rem 0;
}

.fs-mandat-body ul {
	margin: 0;
	padding-left: 1.25rem;
	color: var(--fs-muted);
	font-size: 0.9rem;
	line-height: 1.7;
}

.fs-mandat-body li + li { margin-top: 0.35rem; }

/* Focus sections */

.fs-focus-grid {
	display: grid;
	gap: 2.5rem;
	align-items: start;
}

@media (min-width: 900px) {
	.fs-focus-grid { grid-template-columns: 1.2fr 0.8fr; }
	.fs-focus-grid--reverse { grid-template-columns: 0.8fr 1.2fr; }
	.fs-focus-grid--reverse .fs-focus-text { order: 1; }
	.fs-focus-grid--reverse .fs-focus-mockup { order: 2; }
}

.fs-focus-text h2 {
	font-size: 1.5rem;
	font-weight: 800;
	margin: 0 0 0.75rem;
	color: var(--fs-text);
}

.fs-focus-text h3 {
	font-size: 0.85rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--fs-accent);
	margin: 1.5rem 0 0.75rem;
}

.fs-focus-text p {
	font-size: 0.95rem;
	line-height: 1.7;
	color: var(--fs-muted);
	margin: 0;
}

.fs-check-list {
	list-style: none;
	margin: 0;
	padding: 0;
}

.fs-check-list li {
	position: relative;
	padding-left: 1.35rem;
	font-size: 0.9rem;
	line-height: 1.6;
	color: var(--fs-muted);
	margin-bottom: 0.45rem;
}

.fs-check-list li::before {
	content: '';
	position: absolute;
	left: 0;
	top: 0.55em;
	width: 0.5rem;
	height: 0.5rem;
	border-radius: 9999px;
	background: var(--fs-accent);
}

.fs-focus-featured {
	border-radius: 0.65rem;
	overflow: hidden;
	margin-bottom: 1rem;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.fs-focus-featured img { display: block; width: 100%; height: auto; }

.fs-focus-grid-ads {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 0.75rem;
}

.fs-focus-ad {
	border-radius: 0.5rem;
	overflow: hidden;
	background: var(--fs-card);
	border: 1px solid var(--fs-border);
}

.fs-focus-ad img { display: block; width: 100%; height: auto; }

.fs-focus-mockup {
	border-radius: 0.85rem;
	overflow: hidden;
	box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
	border: 1px solid var(--fs-border);
}

.fs-focus-mockup img { display: block; width: 100%; height: auto; }

/* Events */

.fs-events-grid {
	display: grid;
	gap: 1rem;
}

@media (min-width: 640px) {
	.fs-events-grid { grid-template-columns: repeat(2, 1fr); }
}

.fs-event-card {
	padding: 1.5rem;
	border-radius: 1rem;
	background: var(--fs-card);
	border: 1px solid var(--fs-border);
}

.fs-event-card h3 {
	font-size: 1rem;
	font-weight: 700;
	margin: 0 0 0.4rem;
	color: var(--fs-accent);
}

.fs-event-card p {
	font-size: 0.9rem;
	line-height: 1.6;
	color: var(--fs-muted);
	margin: 0;
}

/* Results */

.fs-results-grid {
	display: grid;
	gap: 1.25rem;
	margin-bottom: 2rem;
}

@media (min-width: 768px) {
	.fs-results-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
	.fs-results-grid { grid-template-columns: repeat(4, 1fr); }
}

.fs-result-item {
	padding: 1.5rem;
	border-radius: 1rem;
	background: var(--fs-card);
	border: 1px solid var(--fs-border);
}

.fs-result-item h3 {
	font-size: 1rem;
	font-weight: 800;
	margin: 0 0 0.5rem;
	color: var(--fs-accent);
}

.fs-result-item p {
	font-size: 0.88rem;
	line-height: 1.6;
	color: var(--fs-muted);
	margin: 0;
}

.fs-results-summary {
	list-style: none;
	margin: 0;
	padding: 1.5rem;
	border-radius: 1rem;
	background: var(--fs-accent-soft);
	border: 1px solid rgba(232, 93, 4, 0.2);
	display: grid;
	gap: 0.5rem;
}

@media (min-width: 768px) {
	.fs-results-summary { grid-template-columns: repeat(2, 1fr); }
}

.fs-results-summary li {
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--fs-text);
	padding-left: 1.25rem;
	position: relative;
}

.fs-results-summary li::before {
	content: '→';
	position: absolute;
	left: 0;
	color: var(--fs-accent);
}

/* Quote */

.fs-quote-band {
	padding: 3.5rem var(--layout-pad-x);
	background: linear-gradient(135deg, rgba(232, 93, 4, 0.12) 0%, rgba(90, 95, 202, 0.08) 100%);
	border-top: 1px solid var(--fs-border);
	border-bottom: 1px solid var(--fs-border);
}

.fs-quote-band blockquote {
	margin: 0;
	max-width: 48rem;
}

.fs-quote-band p {
	font-size: clamp(1.15rem, 2.5vw, 1.45rem);
	font-weight: 700;
	line-height: 1.55;
	color: var(--fs-text);
	margin: 0;
}

/* Gallery filters */

.fs-gallery-filters {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 1.5rem;
}

.fs-gallery-filter {
	padding: 0.45rem 1rem;
	border-radius: 9999px;
	border: 1px solid var(--fs-border);
	background: var(--fs-card);
	color: var(--fs-muted);
	font-size: 0.85rem;
	font-weight: 600;
	cursor: pointer;
	transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.fs-gallery-filter.is-active,
.fs-gallery-filter:hover {
	background: var(--fs-accent);
	border-color: var(--fs-accent);
	color: #fff;
}

.fs-gallery .project-gallery-grid {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 768px) {
	.fs-gallery .project-gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.fs-gallery-item[hidden] { display: none; }

/* Galerie — masquée temporairement (retirer cette règle pour réafficher) */
.fs-gallery { display: none; }

/* CTA */

.fs-cta {
	padding: 4rem var(--layout-pad-x) 5rem;
	background: linear-gradient(135deg, #e85d04 0%, #dc2f02 50%, #b82500 100%);
	color: #fff;
	text-align: center;
}

.fs-cta-inner h2 {
	font-size: clamp(1.5rem, 3vw, 2rem);
	font-weight: 800;
	margin: 0 0 0.75rem;
	color: #fff;
}

.fs-cta-inner p {
	font-size: 1.05rem;
	line-height: 1.65;
	color: rgba(255, 255, 255, 0.9);
	margin: 0 auto 1.75rem;
	max-width: 38rem;
}

.fs-cta-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	justify-content: center;
}