/* ── Variables ── */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f1f5fa;
  --color-surface: #ffffff;
  --color-surface-hover: #f7fafd;
  --color-border: rgba(15, 27, 45, 0.12);
  --color-text: #0f1b2d;
  --color-text-muted: #55647a;
  /* Bleu assombri par rapport à l'ancien #3b9eff, qui ne donnait que
     2,8:1 sur blanc : illisible en texte. Celui-ci monte à 5,9:1. */
  --color-accent: #0f62c4;
  --color-accent-dark: #0a4c9c;
  --color-accent-soft: rgba(15, 98, 196, 0.08);
  --color-accent-line: rgba(15, 98, 196, 0.28);
  --color-accent-glow: rgba(15, 98, 196, 0.22);
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 28px rgba(15, 27, 45, 0.10);
  --shadow-soft: 0 2px 10px rgba(15, 27, 45, 0.05);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

/* Ancre invisible tout en haut : l'id ne doit pas être sur
   l'en-tête fixe, sinon le navigateur croit la cible déjà visible
   et ne remonte pas la page */
.page-top {
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg {
  display: block;
  max-width: 100%;
  /* Indispensable : sans cela, les attributs width/height du HTML imposent
     une hauteur fixe et écrasent tout aspect-ratio défini en CSS */
  height: auto;
}

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

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

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* ── Header ── */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo,
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
}

/* Reprise du pictogramme du favicon, sans sa plaque de fond,
   qui n'a de sens que dans un onglet de navigateur */
.logo-icon {
  flex: none;
  height: 28px;
  width: auto;
  color: var(--color-accent);
}

.logo-mark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.btn-outline {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: rgba(15, 27, 45, 0.20);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ── Hero ── */
/* Deux colonnes : la photo est présentée en médaillon plutôt qu'en fond plein.
   Sur fond clair, un fond plein imposerait un voile blanc qui délaverait
   l'image et fragiliserait le contraste du texte. */
.hero {
  position: relative;
  padding-block: 8.5rem 5rem;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: -25% 45% auto -12%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(15, 98, 196, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

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

/* Proportions natives de la photo (3:2) : tout recadrage couperait
   le bus à gauche ou le tram à droite */
.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(15, 27, 45, 0.18);
}

.hero-badge {
  /* width: fit-content plutôt que inline-flex : sinon la ligne
     d'accroche vient se coller à droite du badge */
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 1rem 0.5rem 0.75rem;
  margin-bottom: 1rem;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-line);
  border-radius: 999px;
}

.hero-badge strong {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-accent);
}

.hero-badge span {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}

.hero-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.6vw, 3.375rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

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

.hero-lead {
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ── Sections ── */
.section {
  padding-block: 5rem;
}

.section-header {
  text-align: center;
  max-width: 620px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

/* ── Services ── */
.services {
  background: var(--color-bg-alt);
}

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

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 2rem;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--color-accent-line);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.service-icon svg {
  width: 32px;
  height: 32px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ── Équipements ── */
.equip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 1.25rem;
}

.equip-item {
  position: relative;
  padding: 1.5rem 1.25rem 1.5rem 1.5rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.equip-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.5rem;
  bottom: 1.5rem;
  width: 3px;
  background: var(--color-accent);
  border-radius: 0 3px 3px 0;
  opacity: 0.6;
  transition: opacity var(--transition);
}

/* Le fond passe du gris au blanc : sans ombre, la carte s'effacerait
   au survol au lieu de ressortir */
.equip-item:hover {
  border-color: var(--color-accent-line);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.equip-item:hover::before {
  opacity: 1;
}

.equip-item h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.equip-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── Marques ── */
/* Fond teinté : sans lui, équipements, marques et expertise
   s'enchaîneraient en trois blocs blancs sans respiration */
.marques {
  background: var(--color-bg-alt);
}

.marques-liste {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.marques-liste li {
  padding: 0.625rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: all var(--transition);
}

.marques-liste li:hover {
  border-color: var(--color-accent-line);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.marques-note {
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── Expertise ── */
.expertise-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.expertise-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.expertise-text > p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.expertise-chiffre {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius);
}

.expertise-chiffre strong {
  flex: none;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.expertise-chiffre span {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.expertise-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.expertise-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
}

.expertise-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.expertise-visual img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

/* ── Bandeau illustré ── */
.visuel-bande {
  margin-top: 3rem;
}

.visuel-bande img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.visuel-bande figcaption {
  margin-top: 0.875rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

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

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 2rem;
}

.form-row {
  margin-bottom: 1.25rem;
}

.form-row label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
}

.form-optional {
  font-weight: 400;
  color: var(--color-text-muted);
  opacity: 0.85;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  /* Teinté, sinon le champ blanc se confondrait avec la carte blanche */
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-row textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  width: 100%;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-bottom: 1rem;
  padding: 0.875rem 1rem;
  font-size: 0.9375rem;
  border-radius: var(--radius);
  line-height: 1.5;
}

.form-status.is-success {
  background: rgba(22, 163, 74, 0.10);
  border: 1px solid rgba(22, 163, 74, 0.28);
  color: #166534;
}

.form-status.is-error {
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.25);
  color: #991b1b;
}

.contact-form .btn[disabled] {
  opacity: 0.7;
  cursor: wait;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: 2.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  max-width: 300px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-nav h2 {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.footer-copy {
  padding-top: 1.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ── Retour en haut ── */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
  z-index: 200;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(15, 98, 196, 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.back-to-top:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ── Responsive ── */
/* .equip-grid s'adapte seul via auto-fit + min() */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .expertise-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Le menu se replie dès que les six entrées ne tiennent plus sur une ligne */
@media (max-width: 820px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 72px 0 auto;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links li a {
    display: block;
    padding: 0.875rem 1.5rem;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-block: 6.5rem 3.5rem;
  }

  .section {
    padding-block: 3.5rem;
  }

  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}