/* JHS Entreprise — Composants UI */

/* ─── Header ─── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--duration-base) var(--ease-out-expo),
              backdrop-filter var(--duration-base) var(--ease-out-expo),
              box-shadow var(--duration-base) var(--ease-out-expo);
}

.site-header.is-scrolled {
  background: rgba(26, 26, 31, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.site-header__inner {
  width: var(--container-wide);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 1.5rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-off-white);
  letter-spacing: 0.02em;
}

.site-logo__mark {
  width: 3rem;
  height: 3rem;
  background: white;
  display: grid;
  place-items: center;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.site-logo__mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.site-nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(247, 245, 242, 0.85);
  letter-spacing: 0.02em;
  position: relative;
  transition: color var(--duration-fast);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-off-white);
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
  width: 100%;
}

.site-nav__cta {
  padding: 0.75rem 1.5rem;
  font-size: var(--text-xs);
}

/* ─── Nav dropdown ─── */
.nav-dropdown {
  position: relative;
}

.nav-dropdown__toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0;
}

.nav-dropdown__toggle .caret {
  font-size: 0.6rem;
  transition: transform var(--duration-fast);
}

.nav-dropdown:hover .nav-dropdown__toggle .caret,
.nav-dropdown.is-open .nav-dropdown__toggle .caret {
  transform: rotate(180deg);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 1rem);
  left: 50%;
  min-width: 16rem;
  background: rgba(26, 26, 31, 0.97);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.25s var(--ease-out-expo),
              transform 0.25s var(--ease-out-expo),
              visibility 0.25s;
  z-index: 1001;
}

/* Pont invisible pour garder le menu ouvert entre le lien et le panneau */
.nav-dropdown__menu::before {
  content: '';
  position: absolute;
  top: -1rem;
  left: 0;
  right: 0;
  height: 1rem;
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown:focus-within .nav-dropdown__menu,
.nav-dropdown.is-open .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown__menu a {
  padding: 0.65rem 1rem;
  font-size: var(--text-sm);
  color: rgba(247, 245, 242, 0.8);
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast), color var(--duration-fast);
  white-space: nowrap;
}

.nav-dropdown__menu a:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--color-off-white);
}

.nav-dropdown__menu a.is-active {
  color: var(--color-accent);
}

.nav-dropdown__menu .nav-dropdown__sub {
  padding-left: 2rem;
  font-size: var(--text-xs);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-off-white);
  transition: transform var(--duration-fast), opacity var(--duration-fast);
}

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--space-3xl);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img,
.hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(26, 26, 31, 0.95) 0%,
    rgba(26, 26, 31, 0.5) 45%,
    rgba(26, 26, 31, 0.25) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  width: var(--container-wide);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.hero__eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 500;
  line-height: 1.05;
  color: var(--color-off-white);
  max-width: 14ch;
  letter-spacing: -0.02em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(247, 245, 242, 0.5);
  writing-mode: vertical-rl;
}

.hero__scroll-line {
  width: 1px;
  height: 4rem;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ─── Story timeline ─── */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.story-visual {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.story-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-visual__badge {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--space-lg);
  background: var(--color-accent);
  color: white;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: 1;
}

.story-visual__badge span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.timeline {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.timeline__item {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-stone-light);
}

.timeline__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.timeline__year {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
  font-weight: 600;
}

.timeline__text h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.timeline__text p {
  color: var(--color-anthracite-muted);
  font-size: var(--text-sm);
}

/* ─── Métiers (chapitres) ─── */
.metiers-list {
  display: flex;
  flex-direction: column;
}

.metier-chapter {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.metier-chapter:nth-child(even) {
  direction: rtl;
}

.metier-chapter:nth-child(even) > * {
  direction: ltr;
}

.metier-chapter__media {
  position: relative;
  overflow: hidden;
}

.metier-chapter__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-out-expo);
}

.metier-chapter:hover .metier-chapter__media img {
  transform: scale(1.05);
}

.metier-chapter__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-2xl);
  background: var(--color-anthracite-soft);
}

.metier-chapter__number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--color-accent);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.metier-chapter__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-off-white);
  margin-bottom: var(--space-md);
}

.metier-chapter__desc {
  color: rgba(247, 245, 242, 0.7);
  margin-bottom: var(--space-lg);
  max-width: 32rem;
}

.metier-chapter__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  transition: gap var(--duration-fast);
}

.metier-chapter__link:hover {
  gap: 0.875rem;
}

/* ─── Portfolio réalisations ─── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-md);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.portfolio-item--large {
  grid-column: span 7;
  aspect-ratio: 16/10;
}

.portfolio-item--medium {
  grid-column: span 5;
  aspect-ratio: 4/5;
}

.portfolio-item--wide {
  grid-column: span 12;
  aspect-ratio: 21/9;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.portfolio-item:hover img {
  transform: scale(1.04);
}

.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 26, 31, 0.85) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--duration-base);
}

.portfolio-item:hover .portfolio-item__overlay {
  opacity: 1;
}

.portfolio-item__tag {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.portfolio-item__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-off-white);
}

.portfolio-item__meta {
  font-size: var(--text-sm);
  color: rgba(247, 245, 242, 0.65);
  margin-top: 0.25rem;
}

/* ─── Certifications ─── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.cert-card {
  padding: var(--space-xl) var(--space-lg);
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.cert-card:hover {
  transform: translateY(-4px);
}

.cert-card__icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--space-md);
  display: grid;
  place-items: center;
  background: var(--color-accent-soft);
  border-radius: 50%;
  font-size: 1.5rem;
}

.cert-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.cert-card__desc {
  font-size: var(--text-sm);
  color: var(--color-anthracite-muted);
}

/* ─── Zones / Carte ─── */
.zones-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
  align-items: start;
}

.zones-map {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--color-anthracite-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.zones-map__svg {
  width: 100%;
  height: 100%;
}

.zone-pin {
  cursor: pointer;
  transition: transform var(--duration-fast);
}

.zone-pin:hover {
  transform: scale(1.15);
}

.zones-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.zone-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: white;
  border-radius: var(--radius-md);
  border-left: 3px solid transparent;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  cursor: pointer;
}

.zone-item:hover,
.zone-item.is-active {
  border-left-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.zone-item__city {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}

.zone-item__detail {
  font-size: var(--text-sm);
  color: var(--color-anthracite-muted);
}

/* ─── Contact CTA ─── */
.contact-cta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: rgba(247, 245, 242, 0.7);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  color: var(--color-off-white);
  transition: border-color var(--duration-fast), background var(--duration-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(247, 245, 242, 0.35);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info__item h4 {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.contact-info__item p,
.contact-info__item a {
  font-size: var(--text-lg);
  color: var(--color-off-white);
}

.contact-info__item a:hover {
  color: var(--color-accent);
}

/* ─── Footer ─── */
.site-footer {
  background: var(--color-anthracite);
  color: rgba(247, 245, 242, 0.65);
  padding-block: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand p {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  max-width: 24rem;
}

.footer-col h4 {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-off-white);
  margin-bottom: var(--space-md);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-col a {
  font-size: var(--text-sm);
  transition: color var(--duration-fast);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--text-sm);
}

.footer-certifications {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.footer-certifications span {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
}

/* ─── Page service ─── */
.page-hero {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  background: var(--color-anthracite);
  color: var(--color-off-white);
}

.page-hero__breadcrumb {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 500;
  max-width: 16ch;
  line-height: 1.1;
}

.page-hero__intro {
  margin-top: var(--space-md);
  font-size: var(--text-lg);
  color: rgba(247, 245, 242, 0.75);
  max-width: 42rem;
}

.service-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  padding-block: var(--space-3xl);
}

.service-content__main h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.service-content__main p {
  color: var(--color-anthracite-muted);
  margin-bottom: var(--space-md);
}

.service-content__main ul {
  margin: var(--space-md) 0;
  padding-left: 0;
}

.service-content__main li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-anthracite-muted);
}

.service-content__main li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.service-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
  align-self: start;
  padding: var(--space-lg);
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.service-sidebar h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
}

.service-sidebar ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-sidebar a {
  font-size: var(--text-sm);
  color: var(--color-anthracite-muted);
  transition: color var(--duration-fast);
}

.service-sidebar a:hover,
.service-sidebar a.is-active {
  color: var(--color-accent);
}

/* ─── Figures dans les pages ─── */
.service-figure {
  margin: 0 0 var(--space-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-figure img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.service-figure--tall img {
  aspect-ratio: 4/3;
}

.service-figure figcaption {
  padding: 0.6rem 0.25rem 0;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-stone-dark);
}

.figure-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.figure-split .service-figure {
  margin: 0;
}

/* ─── Accordéons (isolants, FAQ) ─── */
.accordion {
  border: 1px solid var(--color-stone-light);
  border-radius: var(--radius-md);
  background: white;
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.accordion summary {
  cursor: pointer;
  padding: 1.1rem 1.4rem;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: background var(--duration-fast);
}

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

.accordion summary::after {
  content: '+';
  color: var(--color-accent);
  font-size: 1.4rem;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1;
  transition: transform 0.3s var(--ease-out-expo);
  flex-shrink: 0;
}

.accordion[open] summary::after {
  transform: rotate(45deg);
}

.accordion summary:hover {
  background: var(--color-accent-soft);
}

.accordion__body {
  padding: 0 1.4rem 1.4rem;
}

.accordion__body p {
  margin-bottom: var(--space-sm);
}

/* ─── Tableaux de données ─── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin: var(--space-md) 0;
}

.data-table th {
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-anthracite);
  background: var(--color-stone-light);
  padding: 0.75rem 1rem;
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-stone-light);
  color: var(--color-anthracite-muted);
}

/* ─── Bandeau CTA ─── */
.cta-banner {
  background: var(--color-accent);
  color: white;
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin: var(--space-xl) 0;
}

.cta-banner h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  max-width: 30rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85) !important;
  margin: 0.25rem 0 0 !important;
  font-size: var(--text-sm);
}

.cta-banner .btn {
  background: white;
  color: var(--color-anthracite);
  flex-shrink: 0;
}

.cta-banner .btn:hover {
  background: var(--color-anthracite);
  color: white;
}

/* ─── Liens internes mis en avant ─── */
.inline-link {
  color: var(--color-accent);
  font-weight: 600;
}

.inline-link:hover {
  text-decoration: underline;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .story-grid,
  .contact-cta,
  .zones-layout,
  .service-content,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .metier-chapter,
  .metier-chapter:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .metier-chapter__media {
    aspect-ratio: 16/10;
  }

  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-item--large,
  .portfolio-item--medium,
  .portfolio-item--wide {
    grid-column: span 12;
    aspect-ratio: 16/10;
  }
}

@media (max-width: 768px) {
  .site-nav {
    position: fixed;
    inset: 0;
    top: var(--header-height);
    background: var(--color-anthracite);
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--space-xl);
    gap: 1.5rem;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--duration-base) var(--ease-out-expo);
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  /* Dropdowns : listes dépliées en accordéon sur mobile */
  .nav-dropdown__menu {
    position: static;
    transform: none;
    background: transparent;
    border: none;
    backdrop-filter: none;
    min-width: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    align-items: center;
    transition: max-height 0.35s var(--ease-out-expo);
  }

  .nav-dropdown__menu::before {
    display: none;
  }

  .nav-dropdown.is-open .nav-dropdown__menu {
    max-height: 30rem;
    transform: none;
  }

  .nav-dropdown {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .hero__scroll {
    display: none;
  }
}