/* ============================================================
   PAGE RÉFÉRENCES
============================================================ */

.ref-hero {
padding-top: calc(var(--section-py) + var(--header-h));
padding-bottom: var(--section-py);
}

.ref-hero__inner {
max-width: var(--container-max);
margin-inline: auto;
padding-inline: var(--container-px);
}

.ref-hero__title {
font-family: var(--font-display);
font-size: clamp(4rem, 10vw, 9rem);
line-height: 0.95;
letter-spacing: -0.03em;
max-width: 14ch;
}

.ref-hero__title .olive {
color: var(--color-olive);
font-style: italic;
}

.ref-hero__subtitle {
font-size: clamp(1rem, 1.5vw, 1.25rem);
color: var(--color-text-muted);
max-width: 44ch;
margin-top: 2rem;
margin-left: auto;
}

.ref-filters {
padding-block: 2rem;
border-bottom: 1px solid var(--color-border);
}

.ref-filters__inner {
max-width: var(--container-max);
margin-inline: auto;
padding-inline: var(--container-px);
display: flex;
gap: 0.5rem;
flex-wrap: wrap;
}

.ref-filter-btn {
padding: 0.5rem 1.25rem;
border-radius: 100px;
border: 1.5px solid var(--color-border);
font-family: var(--font-ui);
font-size: 0.8rem;
font-weight: 600;
color: var(--color-text-muted);
transition: all var(--transition-fast), border-radius var(--transition-slow);
}

.ref-filter-btn:hover,
.ref-filter-btn.is-active {
background-color: var(--color-dark);
border-color: var(--color-dark);
color: var(--color-cream);
border-radius: var(--radius-organic-3);
}

.ref-featured {
padding-block: var(--section-py);
}

.ref-featured__inner {
max-width: var(--container-max);
margin-inline: auto;
padding-inline: var(--container-px);
}

.featured-projects-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1.5rem;
}

.featured-projects-grid .project-card:first-child {
grid-row: span 2;
aspect-ratio: 2/3;
}

.featured-projects-grid .project-card:first-child .project-card__title {
font-size: clamp(1.5rem, 3vw, 2.5rem);
}

.all-projects {
padding-block: var(--section-py);
background-color: var(--color-bg);
}

.all-projects__inner {
max-width: var(--container-max);
margin-inline: auto;
padding-inline: var(--container-px);
}

.all-projects__grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 1.5rem;
margin-top: 3rem;
}

.all-projects__grid .project-card[data-filtered="false"] {
display: none;
}

.ref-clients {
padding-block: var(--section-py);
background-color: var(--color-dark);
color: var(--color-cream);
}

.ref-clients__inner {
max-width: var(--container-max);
margin-inline: auto;
padding-inline: var(--container-px);
}

.ref-clients__header {
text-align: center;
margin-bottom: clamp(3rem, 6vw, 6rem);
}

.ref-clients__header .section__title {
color: var(--color-cream);
}

.ref-cta-strip {
padding-block: clamp(4rem, 8vw, 8rem);
background: linear-gradient(135deg, var(--color-olive) 0%, var(--color-olive-dark) 100%);
color: var(--color-white);
text-align: center;
position: relative;
overflow: hidden;
}

.ref-cta-strip::before {
content: '';
position: absolute;
inset: 0;
background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.ref-cta-strip__content {
position: relative;
z-index: 2;
max-width: var(--container-max);
margin-inline: auto;
padding-inline: var(--container-px);
}

.ref-cta-strip__title {
font-family: var(--font-display);
font-size: clamp(2rem, 4vw, 4rem);
margin-bottom: 2rem;
}

.ref-cta-strip .btn--dark {
background-color: var(--color-dark);
}

@media (max-width: 768px) {
.featured-projects-grid {
grid-template-columns: 1fr;
}
.featured-projects-grid .project-card:first-child {
grid-row: auto;
aspect-ratio: 4/3;
}
.all-projects__grid {
grid-template-columns: 1fr;
}
}