/* ============================================================
   RIVIERA RÉNOV — Stylesheet
   Design : élégant, épuré, Côte d'Azur
   ============================================================ */

/* ─── Variables ─────────────────────────────────────────── */
:root {
  --bg:          #faf8f5;
  --dark:        #1a1a1a;
  --gold:        #c8a06e;
  --gold-light:  #e8d5b7;
  --gold-dark:   #9c7a4e;
  --gray:        #6b6b6b;
  --light:       #f0ede8;
  --white:       #ffffff;
  --border:      #e2ddd6;

  --font-head:   'Cormorant Garamond', Georgia, serif;
  --font-body:   'Inter', system-ui, sans-serif;

  --nav-h:       80px;
  --section-pad: 100px;
  --radius:      4px;
  --transition:  0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ─── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ─── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.8rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.15rem; }
p  { color: var(--gray); font-size: 1rem; }

/* ─── Utilities ──────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 60px);
}
.section { padding-block: var(--section-pad); }
.section--light { background: var(--light); }
.section--dark  { background: var(--dark); color: var(--white); }
.section--dark p { color: rgba(255,255,255,0.65); }

.label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.section-title {
  margin-bottom: 18px;
}
.section-title + p { max-width: 580px; }
.section-header { margin-bottom: 60px; }
.section-header--center { text-align: center; }
.section-header--center .section-title + p { margin-inline: auto; }

/* Gold underline */
.gold-line {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--gold);
  margin-top: 20px;
}
.section-header--center .gold-line { margin-inline: auto; }

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.btn--gold {
  background: var(--gold);
  color: var(--white);
}
.btn--gold:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 160, 110, 0.35);
}
.btn--outline {
  border: 1.5px solid var(--gold);
  color: var(--gold);
}
.btn--outline:hover {
  background: var(--gold);
  color: var(--white);
  transform: translateY(-2px);
}
.btn--outline-white {
  border: 1.5px solid rgba(255,255,255,0.6);
  color: var(--white);
}
.btn--outline-white:hover {
  background: var(--white);
  color: var(--dark);
}

/* ─── Navigation ─────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  background: rgba(250, 248, 245, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav__logo img {
  height: 52px;
  width: auto;
  transition: var(--transition);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav__links a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition);
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1.5px;
  background: var(--gold);
  transition: width var(--transition);
}
.nav__links a:hover, .nav__links a.active {
  color: var(--gold);
}
.nav__links a:hover::after, .nav__links a.active::after {
  width: 100%;
}
.nav.nav--hero .nav__links a { color: var(--white); }
.nav.nav--hero .nav__links a:hover { color: var(--gold-light); }
.nav__cta {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 11px 24px;
  background: var(--gold);
  color: var(--white) !important;
  border-radius: var(--radius);
  transition: var(--transition);
}
.nav__cta:hover {
  background: var(--gold-dark) !important;
  color: var(--white) !important;
}
.nav__cta::after { display: none !important; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}
.nav.nav--hero .nav__burger span { background: var(--white); }

/* ─── Hero ───────────────────────────────────────────────── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  transition: transform 8s ease;
}
.hero__bg.loaded { transform: scale(1); }
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(20, 16, 12, 0.72) 0%,
    rgba(20, 16, 12, 0.38) 60%,
    rgba(20, 16, 12, 0.55) 100%
  );
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero__label {
  color: var(--gold-light);
  margin-bottom: 20px;
}
.hero__title {
  color: var(--white);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 500;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero__title em {
  font-style: italic;
  color: var(--gold-light);
}
.hero__subtitle {
  color: rgba(255,255,255,0.82);
  font-size: 1.05rem;
  margin-bottom: 44px;
  max-width: 500px;
  line-height: 1.8;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ─── Services ───────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
}
.service-card {
  background: var(--white);
  padding: 48px 40px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 3px;
  background: var(--gold);
  transition: width var(--transition);
}
.service-card:hover::before { width: 100%; }
.service-card:hover { transform: translateY(-4px); }
.service-card__icon {
  font-size: 2.2rem;
  margin-bottom: 24px;
  line-height: 1;
}
.service-card__title {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--dark);
}
.service-card p { font-size: 0.92rem; line-height: 1.75; }

/* ─── About ──────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-image {
  position: relative;
}
.about-image__main {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius);
}
.about-image__badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--gold);
  color: var(--white);
  padding: 28px 32px;
  text-align: center;
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(200,160,110,0.35);
}
.about-image__badge strong {
  display: block;
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
}
.about-image__badge span {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
}
.about-content { padding-left: 16px; }
.about-content h2 { margin-bottom: 24px; }
.about-content p { margin-bottom: 20px; font-size: 0.97rem; }
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 44px;
  padding-top: 44px;
  border-top: 1px solid var(--border);
}
.stat-item strong {
  display: block;
  font-family: var(--font-head);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-item span {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}

/* ─── Portfolio preview (homepage) ──────────────────────── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.portfolio-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
}
.portfolio-card--large { grid-row: span 2; }
.portfolio-card__img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.portfolio-card--large .portfolio-card__img { min-height: 580px; }
.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20,16,12,0.82) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.portfolio-card:hover .portfolio-card__overlay { opacity: 1; }
.portfolio-card:hover .portfolio-card__img { transform: scale(1.06); }
.portfolio-card__info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 32px 28px;
  transform: translateY(10px);
  opacity: 0;
  transition: var(--transition);
}
.portfolio-card:hover .portfolio-card__info {
  transform: translateY(0);
  opacity: 1;
}
.portfolio-card__location {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 6px;
}
.portfolio-card__title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--white);
  font-weight: 500;
}
.portfolio-cta {
  text-align: center;
  margin-top: 52px;
}

/* ─── Process / Étapes ───────────────────────────────────── */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-grid::before {
  content: '';
  position: absolute;
  top: 42px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 1px;
  background: var(--border);
}
.process-step {
  padding: 0 28px;
  text-align: center;
}
.process-step__num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gold);
  position: relative;
  z-index: 1;
}
.process-step h4 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--dark);
}
.process-step p { font-size: 0.88rem; }

/* ─── Engagements ────────────────────────────────────────── */
.engagements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.engagement-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.engagement-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(200,160,110,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.engagement-item h4 {
  margin-bottom: 6px;
  color: var(--white);
  font-family: var(--font-head);
  font-size: 1.1rem;
}
.engagement-item p { font-size: 0.9rem; }

/* ─── Testimonials ───────────────────────────────────────── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial-card {
  background: var(--white);
  padding: 40px 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
}
.testimonial-card::before {
  content: '"';
  font-family: var(--font-head);
  font-size: 6rem;
  line-height: 1;
  color: var(--gold-light);
  position: absolute;
  top: 12px; left: 28px;
  pointer-events: none;
}
.testimonial-card__stars {
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 20px;
  margin-top: 24px;
}
.testimonial-card__text {
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray);
  margin-bottom: 28px;
}
.testimonial-card__author strong {
  display: block;
  font-size: 0.9rem;
  color: var(--dark);
  margin-bottom: 2px;
}
.testimonial-card__author span {
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ─── CTA Banner ─────────────────────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--dark) 0%, #2a2015 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(200,160,110,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner h2 { color: var(--white); margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.65); margin-bottom: 40px; font-size: 1.05rem; }
.cta-banner__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-tel {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold-light);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: 24px;
}

/* ─── Footer ─────────────────────────────────────────────── */
.footer {
  background: #111;
  color: rgba(255,255,255,0.55);
  padding: 72px 0 32px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}
.footer__logo img {
  height: 44px;
  width: auto;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
  opacity: 0.8;
}
.footer__logo p { font-size: 0.9rem; line-height: 1.75; }
.footer__col h5 {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col ul a {
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__col ul a:hover { color: var(--gold-light); }
.footer__contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  align-items: flex-start;
}
.footer__contact-item strong {
  color: rgba(255,255,255,0.4);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-shrink: 0;
  width: 32px;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom a { transition: color var(--transition); }
.footer__bottom a:hover { color: var(--gold-light); }
.footer__legal { display: flex; gap: 20px; }

/* ─── Page Hero (inner pages) ────────────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 80px;
  background: var(--light);
  border-bottom: 1px solid var(--border);
}
.page-hero .label { margin-bottom: 10px; }
.page-hero h1 { font-size: clamp(2.4rem, 5vw, 4rem); margin-bottom: 16px; }
.page-hero p { font-size: 1.05rem; max-width: 560px; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--gray);
  margin-bottom: 24px;
  letter-spacing: 0.06em;
}
.breadcrumb a { color: var(--gold); }
.breadcrumb span { color: var(--border); }

/* ─── Realisations page ──────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 52px;
}
.filter-btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 10px 22px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  color: var(--gray);
  background: var(--white);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(200,160,110,0.06);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}
.project-card__cover {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.project-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.project-card:hover .project-card__cover img { transform: scale(1.08); }
.project-card__body {
  padding: 24px 24px 28px;
}
.project-card__tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.project-card__title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--dark);
  margin-bottom: 8px;
}
.project-card__meta {
  font-size: 0.82rem;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 6px;
}
.project-card__count {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--gray);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ─── Lightbox ───────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(10, 8, 6, 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.lightbox.open {
  opacity: 1;
  pointer-events: all;
}
.lightbox__inner {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox__img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: var(--radius);
  transition: opacity 0.25s ease;
  user-select: none;
}
.lightbox__img.loading { opacity: 0; }
.lightbox__close {
  position: absolute;
  top: 24px; right: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 2;
}
.lightbox__close:hover { background: rgba(255,255,255,0.2); }
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 2;
}
.lightbox__nav:hover { background: rgba(255,255,255,0.22); }
.lightbox__prev { left: 20px; }
.lightbox__next { right: 20px; }
.lightbox__caption {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: rgba(255,255,255,0.7);
}
.lightbox__caption strong {
  display: block;
  color: var(--white);
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.lightbox__caption span {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.lightbox__counter {
  position: absolute;
  top: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

/* ─── Services page ──────────────────────────────────────── */
.services-detailed {
  display: flex;
  flex-direction: column;
  gap: 80px;
}
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.service-detail:nth-child(even) .service-detail__img { order: 2; }
.service-detail:nth-child(even) .service-detail__content { order: 1; }
.service-detail__img {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.service-detail__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.service-detail__img:hover img { transform: scale(1.04); }
.service-detail__content h3 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 20px;
}
.service-detail__content p { font-size: 0.96rem; margin-bottom: 16px; }
.service-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--gray);
}
.service-list li::before {
  content: '';
  width: 20px;
  height: 1.5px;
  background: var(--gold);
  flex-shrink: 0;
}

/* ─── Contact page ───────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 80px;
  align-items: start;
}
.contact-info h3 {
  font-size: 1.6rem;
  margin-bottom: 20px;
}
.contact-info p { font-size: 0.96rem; margin-bottom: 32px; }
.contact-detail {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}
.contact-detail__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(200,160,110,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-detail__text strong {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 4px;
}
.contact-detail__text span { font-size: 0.95rem; color: var(--gray); }
.contact-zones {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.contact-zones h5 {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  font-family: var(--font-body);
  font-weight: 600;
}
.zone-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.zone-tag {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--gray);
  background: var(--white);
}

/* Contact form */
.contact-form {
  background: var(--white);
  padding: 52px 48px;
  border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0,0,0,0.07);
}
.contact-form h3 { font-size: 1.6rem; margin-bottom: 32px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--dark);
  background: var(--bg);
  transition: border-color var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-submit { margin-top: 8px; }
.form-note {
  font-size: 0.8rem;
  color: var(--gray);
  margin-top: 14px;
}
.form-success {
  display: none;
  padding: 20px;
  background: rgba(200,160,110,0.1);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  color: var(--gold-dark);
  font-size: 0.9rem;
  text-align: center;
  margin-top: 16px;
}

/* ─── Zones d'intervention ───────────────────────────────── */
.zones-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.zone-item {
  background: var(--white);
  padding: 28px 24px;
  transition: var(--transition);
  text-align: center;
}
.zone-item:hover { background: rgba(200,160,110,0.06); }
.zone-item__name {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 4px;
  font-weight: 600;
}
.zone-item__dept {
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ─── Scroll animations ──────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }

/* ─── Mobile menu overlay ────────────────────────────────── */
.nav__mobile-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
.nav__mobile-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.nav__mobile-overlay a {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--dark);
  transition: color var(--transition);
}
.nav__mobile-overlay a:hover { color: var(--gold); }
.nav__mobile-close {
  position: absolute;
  top: 24px;
  right: clamp(20px, 5vw, 60px);
  font-size: 1.5rem;
  color: var(--dark);
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --section-pad: 72px; }
  .about-grid { grid-template-columns: 1fr; gap: 60px; }
  .about-image { max-width: 500px; }
  .about-image__badge { right: 0; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-card--large { grid-row: auto; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-grid::before { display: none; }
  .engagements-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .zones-grid { grid-template-columns: repeat(3, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 52px; }
  .service-detail { grid-template-columns: 1fr; gap: 40px; }
  .service-detail:nth-child(even) .service-detail__img { order: 0; }
  .service-detail:nth-child(even) .service-detail__content { order: 0; }
}

@media (max-width: 768px) {
  :root { --nav-h: 68px; --section-pad: 60px; }
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .engagements-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .zones-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 32px 24px; }
  .lightbox__prev { left: 8px; }
  .lightbox__next { right: 8px; }
  .lightbox__nav { width: 40px; height: 40px; font-size: 1rem; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .cta-banner__actions { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  .about-stats { grid-template-columns: 1fr; gap: 20px; }
  .zones-grid { grid-template-columns: 1fr 1fr; }
}