/* ==========================================================================
   AIT Mobilité — Feuille de style principale
   Design system : palette bleu marine + orange
   ========================================================================== */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Palette */
  --color-navy: #0B2545;
  --color-navy-dark: #081b33;
  --color-navy-light: #13345e;
  --color-orange: #F97316;
  --color-orange-dark: #ea580c;
  --color-orange-light: #fdba74;
  --color-white: #ffffff;
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;

  /* Typo */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Layout */
  --container: 1280px;
  --radius: 12px;
  --radius-sm: 6px;
  --radius-lg: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(11, 37, 69, 0.08);
  --shadow: 0 4px 16px rgba(11, 37, 69, 0.10);
  --shadow-lg: 0 12px 32px rgba(11, 37, 69, 0.15);

  /* Transitions */
  --t: 0.25s ease;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-orange);
  text-decoration: none;
  transition: color var(--t);
}

a:hover {
  color: var(--color-orange-dark);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); margin-bottom: 0.75rem; }
h4 { font-size: 1.125rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol { padding-left: 1.25rem; margin-bottom: 1rem; }
ul li, ol li { margin-bottom: 0.5rem; }

:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 3px;
}

/* ---------- Layout utilities ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.section-alt {
  background: var(--color-bg);
}

.section-dark {
  background: var(--color-navy);
  color: #cbd5e1;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.text-center { text-align: center; }

.eyebrow {
  display: inline-block;
  background: rgba(249, 115, 22, 0.12);
  color: var(--color-orange);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-head {
  text-align: center;
  margin-bottom: 3rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--t);
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-orange);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-orange-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
}

.btn-secondary {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-secondary:hover {
  background: var(--color-navy-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-navy);
  border-color: var(--color-white);
}

.btn-ghost {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.nav-top {
  background: var(--color-navy);
  color: #cbd5e1;
  font-size: 0.8125rem;
  padding: 0.5rem 0;
}

.nav-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-top-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #cbd5e1;
}

.nav-top-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-orange);
}

.nav-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.logo:hover { color: var(--color-navy); }

.logo svg { flex-shrink: 0; }

.logo-text strong { color: var(--color-orange); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
  justify-content: center;
}

.nav-menu li { margin: 0; }

.nav-menu a {
  display: block;
  padding: 0.65rem 0.95rem;
  color: var(--color-navy);
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: all var(--t);
  white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-orange);
  background: rgba(249, 115, 22, 0.08);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-navy);
  color: var(--color-white);
  align-items: center;
  justify-content: center;
}

.menu-toggle svg { width: 24px; height: 24px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  padding: 5rem 0 6rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1601584115197-04ecc0da31d7?auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}

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

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero h1 span {
  color: var(--color-orange);
}

.hero-lead {
  font-size: 1.125rem;
  color: #cbd5e1;
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stats .stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-orange);
  line-height: 1;
}

.hero-stats .stat span {
  font-size: 0.875rem;
  color: #cbd5e1;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: var(--color-orange);
  color: var(--color-white);
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow);
}

.hero-badge strong { font-size: 1.75rem; display: block; line-height: 1; }
.hero-badge span { font-size: 0.8125rem; opacity: 0.95; }

/* Hero pages intérieures (plus petit) */
.hero-inner {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  padding: 4rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.hero-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1494412574745-53dc2cb36c98?auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

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

.hero-inner h1 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.hero-inner p {
  color: #cbd5e1;
  font-size: 1.0625rem;
  max-width: 720px;
}

/* Breadcrumbs */
.breadcrumb {
  font-size: 0.8125rem;
  color: #cbd5e1;
  margin-bottom: 1rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
}

.breadcrumb li { margin: 0; }

.breadcrumb li + li::before {
  content: '›';
  padding-right: 0.5rem;
  color: var(--color-orange);
}

.breadcrumb a {
  color: #cbd5e1;
  transition: color var(--t);
}

.breadcrumb a:hover { color: var(--color-orange); }

.breadcrumb [aria-current="page"] {
  color: var(--color-orange);
  font-weight: 500;
}

/* ---------- Logos bar (clients) ---------- */
.logos-bar {
  padding: 3rem 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.logos-bar-title {
  text-align: center;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-weight: 600;
}

.logos-bar-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  align-items: center;
  justify-items: center;
}

.logos-bar-grid .client-logo {
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--color-text-muted);
  opacity: 0.6;
  transition: opacity var(--t);
  letter-spacing: -0.02em;
}

.logos-bar-grid .client-logo:hover { opacity: 1; }

/* ---------- Grid des services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--t);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-orange);
}

.service-card-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-card:hover .service-card-img img {
  transform: scale(1.05);
}

.service-card-icon {
  position: absolute;
  bottom: -24px;
  right: 1.5rem;
  width: 56px;
  height: 56px;
  background: var(--color-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow);
}

.service-card-icon svg { width: 28px; height: 28px; }

/* Cartes sans image (icône seule) */
.service-card:not(:has(.service-card-img)) {
  padding: 2rem 1.75rem 1.75rem;
}

.service-card .service-icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-orange) 0%, #ea580c 100%);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
}

.service-card .service-icon svg {
  width: 30px;
  height: 30px;
}

.service-card-body {
  padding: 2rem 1.75rem 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card-tag {
  font-size: 0.75rem;
  color: var(--color-orange);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  flex: 1;
  margin-bottom: 1.25rem;
}

.service-card .card-link {
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-orange);
}

.service-card .card-link::after {
  content: '→';
  transition: transform var(--t);
}

.service-card .card-link:hover::after { transform: translateX(4px); }

/* ---------- À propos / split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.split-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}

.split-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-content h2 { margin-bottom: 1.5rem; }

.features-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.5rem 0 2rem;
}

.features-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border-left: 3px solid var(--color-orange);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-navy);
  margin: 0;
}

.features-list li::before {
  content: '›';
  color: var(--color-orange);
  font-weight: 700;
  font-size: 1.25rem;
}

/* ---------- Stats bar ---------- */
.stats-bar {
  background: var(--color-navy);
  padding: 3rem 0;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.stats-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1566576912321-d58ddd7a6088?auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.1;
}

.stats-bar .container {
  position: relative;
  z-index: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--t);
}

.stat-box:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-orange);
}

.stat-box-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.stat-box-icon svg { width: 24px; height: 24px; }

.stat-box strong {
  display: block;
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-box span {
  font-size: 0.875rem;
  color: #cbd5e1;
}

/* ---------- Testimonials ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  position: relative;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  font-size: 5rem;
  line-height: 1;
  color: var(--color-orange);
  opacity: 0.2;
  font-family: Georgia, serif;
}

.testimonial p {
  color: var(--color-text);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  color: var(--color-navy);
  font-size: 0.9375rem;
}

.testimonial-author span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.stars {
  color: var(--color-orange);
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  letter-spacing: 2px;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1.25rem 0;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-navy);
  text-align: left;
  transition: color var(--t);
}

.faq-question:hover { color: var(--color-orange); }

.faq-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-orange);
  font-size: 1.25rem;
  transition: all var(--t);
}

.faq-item.open .faq-icon {
  background: var(--color-orange);
  color: var(--color-white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 0 1.25rem;
  color: var(--color-text-muted);
}

.faq-item.open .faq-answer { max-height: 400px; }

/* ---------- Process / steps ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 60%;
  width: 80%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--color-orange) 0 8px, transparent 8px 16px);
  z-index: -1;
}

.process-step:last-child::before { display: none; }

.process-step-num {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-orange);
  color: var(--color-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-weight: 800;
  font-size: 1.25rem;
  transition: all var(--t);
}

.process-step:hover .process-step-num {
  background: var(--color-orange);
  color: var(--color-white);
  transform: scale(1.05);
}

.process-step h3 {
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ---------- Sectors / secteurs ---------- */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.sector-card {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}

.sector-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-orange);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t);
}

.sector-card:hover {
  border-color: var(--color-orange);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.sector-card:hover::before { transform: scaleY(1); }

.sector-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(249, 115, 22, 0.1);
  color: var(--color-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.sector-icon svg { width: 28px; height: 28px; }

.sector-card h3 { margin-bottom: 0.5rem; }

.sector-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
  padding: 4rem 0;
  text-align: center;
  color: var(--color-white);
}

.cta-band h2 {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.cta-band p {
  font-size: 1.125rem;
  opacity: 0.95;
  max-width: 640px;
  margin: 0 auto 2rem;
}

.cta-band .btn-primary {
  background: var(--color-white);
  color: var(--color-orange);
}

.cta-band .btn-primary:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

/* ---------- Content pages (texte long) ---------- */
.content {
  max-width: 820px;
  margin: 0 auto;
}

.content h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.content h2:first-child { margin-top: 0; }

.content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-navy);
}

.content p {
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.content ul, .content ol {
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.content li { margin-bottom: 0.5rem; }

.content blockquote {
  border-left: 4px solid var(--color-orange);
  padding: 1rem 1.5rem;
  background: var(--color-bg);
  font-style: italic;
  color: var(--color-navy);
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- Contact form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; }
.contact-info p { color: var(--color-text-muted); margin-bottom: 2rem; }

.contact-features {
  list-style: none;
  padding: 0;
}

.contact-features li {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-features li:last-child { border-bottom: none; }

.contact-features .icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(249, 115, 22, 0.1);
  color: var(--color-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-features .icon svg { width: 22px; height: 22px; }

.contact-features strong {
  display: block;
  color: var(--color-navy);
  margin-bottom: 0.125rem;
}

.contact-features span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.contact-form {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.4rem;
}

.form-group label .required {
  color: var(--color-orange);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--t), box-shadow var(--t);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-orange);
  box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.12);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.form-check input { margin-top: 0.2rem; flex-shrink: 0; }

.form-success {
  padding: 1rem 1.25rem;
  background: #d1fae5;
  color: #065f46;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  display: none;
}

.form-success.show { display: block; }

.form-error {
  color: #b91c1c;
  font-size: 0.8125rem;
  margin-top: 0.3rem;
  display: none;
}

.form-error.show { display: block; }

.form-control.error { border-color: #dc2626; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-navy-dark);
  color: #94a3b8;
  padding: 4rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li { margin-bottom: 0.625rem; }

.footer-col a {
  color: #94a3b8;
  font-size: 0.9375rem;
  transition: color var(--t);
}

.footer-col a:hover {
  color: var(--color-orange);
  padding-left: 0.3rem;
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: all var(--t);
}

.footer-social a:hover {
  background: var(--color-orange);
  transform: translateY(-3px);
  padding-left: 0;
}

.footer-social svg { width: 18px; height: 18px; }

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-bottom-links li { margin: 0; }

/* ---------- Accessibility : skip link ---------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: 0.5rem 1rem;
  background: var(--color-orange);
  color: var(--color-white);
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus { top: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-image { aspect-ratio: 16 / 10; max-width: 640px; margin: 0 auto; }
  .split { grid-template-columns: 1fr; gap: 2.5rem; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-step::before { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .logos-bar-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px) {
  .nav-top { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    justify-content: flex-start;
    background: var(--color-white);
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--color-border);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu li { width: 100%; }
  .nav-menu a { width: 100%; padding: 0.9rem 1rem; }
  .nav-cta .btn:not(.menu-toggle) { display: none; }
}

@media (max-width: 720px) {
  .section { padding: 3.5rem 0; }

  .hero { padding: 3rem 0 4rem; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .hero-stats .stat strong { font-size: 1.5rem; }

  .services-grid,
  .sectors-grid,
  .stats-grid,
  .process-grid,
  .footer-grid,
  .logos-bar-grid { grid-template-columns: 1fr; }

  .logos-bar-grid { gap: 1.5rem; }
  .logos-bar-grid .client-logo { font-size: 0.875rem; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .nav-menu { display: none; }
  .menu-toggle { display: flex; }
}

/* =======================================================
   FALLBACK : éléments .reveal toujours visibles par défaut.
   L'animation JS (IntersectionObserver) est un bonus.
   ======================================================= */
.reveal {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.reveal--hidden {
    opacity: 0;
    transform: translateY(20px);
  }
}