/* ============================================================
   style.css — BMS BluePrint Metal Structures
   Architecture : Variables → Reset → Utilitaires → Composants
   ============================================================ */

/* ========== 1. VARIABLES (Design Tokens) ========== */
:root {
  /* Couleurs */
  --clr-primary:            #001736;
  --clr-primary-container:  #002b5b;
  --clr-secondary:          #9a4600;
  --clr-secondary-container:#fe8028;
  --clr-on-secondary-container: #612900;
  --clr-on-secondary-fixed-variant: #763300;
  --clr-secondary-fixed:    #ffdbc9;
  --clr-surface:            #faf8ff;
  --clr-surface-container:  #eaedff;
  --clr-surface-container-low: #f2f3ff;
  --clr-surface-container-high: #e2e7ff;
  --clr-surface-variant:    #dae2fd;
  --clr-on-surface:         #131b2e;
  --clr-on-surface-variant: #43474f;
  --clr-on-primary:         #ffffff;
  --clr-outline:            #747780;
  --clr-outline-variant:    #c4c6d0;

  /* Typographie */
  --ff-display:  'IBM Plex Sans', sans-serif;
  --ff-headline: 'IBM Plex Sans', sans-serif;
  --ff-label:    'JetBrains Mono', monospace;
  --ff-body:     'Hanken Grotesk', sans-serif;

  /* Espacements */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  --margin-page:   64px;
  --gutter:        24px;
  --container-max: 1280px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-std:  0.25s ease;
}

/* ========== 2. RESET ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--clr-surface);
  color: var(--clr-on-surface);
  font-family: var(--ff-body);
  font-size: 0.875rem;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  padding-top: 72px; /* Espacement pour le header fixe */
  /* Amélioration du rendu texte */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background-color: var(--clr-secondary-container);
  color: var(--clr-on-secondary-container);
}

a         { text-decoration: none; color: inherit; }
img       { max-width: 100%; height: auto; display: block; }
address   { font-style: normal; }
ul, ol    { list-style: none; }
button    { cursor: pointer; font-family: inherit; }

/* ========== 3. ICÔNES MATERIAL ========== */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  display: inline-block;
  line-height: 1;
  vertical-align: middle;
  font-size: 1.5rem;
  /* Empêche le FOUT (flash of unstyled text) */
  font-display: swap;
}

.icon-filled { font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24; }

/* ========== 4. UTILITAIRES ========== */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-page);
}

.blueprint-grid {
  background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(2.5rem);
  transition: opacity 0.8s ease, transform 0.8s ease;
  /* Utilise will-change pour promouvoir sur le GPU uniquement le temps de l'animation */
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto; /* retire la promotion GPU après l'animation */
}

/* Réduit le mouvement pour les utilisateurs qui le préfèrent */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

main { flex: 1; }

/* ========== 5. HEADER ========== */
#site-header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  background-color: var(--clr-surface);
  border-bottom: 1px solid var(--clr-outline-variant);
  box-shadow: 0 1px 4px rgb(0 0 0 / .07);
}

.header-inner {
  width: 100%;
  padding: var(--space-md) 9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

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



/* Nav desktop */
.main-nav {
  display: flex;
  align-items: center;
  gap: 48px;
}

.main-nav a {
  font-family: var(--ff-body);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--clr-on-surface-variant);
  padding: var(--space-xs) 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-std), border-color var(--transition-std);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--clr-primary);
}

.main-nav a.active {
  color: var(--clr-secondary);
  border-bottom-color: var(--clr-secondary);
}

/* Bouton menu mobile */
.menu-btn {
  display: none;
  background: none;
  border: none;
  padding: var(--space-sm);
  color: var(--clr-on-surface-variant);
  border-radius: 50%;
  transition: background var(--transition-fast);
  align-items: center;
  justify-content: center;
}

.menu-btn:hover,
.menu-btn:focus-visible {
  background-color: var(--clr-surface-container-low);
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
}

/* Nav mobile déroulante */
.mobile-nav {
  display: flex;
  flex-direction: column;
  background-color: var(--clr-surface);
  border-bottom: 1px solid var(--clr-outline-variant);
  box-shadow: 0 8px 24px rgb(0 0 0 / .1);
}

.mobile-nav[hidden] { display: none; }

.mobile-nav a {
  padding: 14px var(--margin-page);
  color: var(--clr-on-surface-variant);
  font-weight: 500;
  border-bottom: 1px solid var(--clr-outline-variant);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover     { background-color: var(--clr-surface-container-low); }
.mobile-nav a.active    { color: var(--clr-secondary); }

/* ========== 6. HERO ========== */
.hero {
  position: relative;
  height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--clr-primary);
}

/* Fond */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-overlay-1 {
  position: absolute;
  inset: 0;
  background: rgb(0 23 54 / .6);
  mix-blend-mode: multiply;
  z-index: 1;
}

.hero-overlay-2 {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgb(0 23 54) 0%,
    rgb(0 23 54 / .4) 50%,
    transparent 100%
  );
  z-index: 2;
}

.hero-img {
  width: 100%;
  height: 100%;
  /* Lazy-load via background sera géré côté navigateur avec CSS */
  background-image: url('img/download.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 10s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1.05); }
  to   { transform: scale(1.10); }
}

/* Contenu Hero */
.hero-content {
  position: relative;
  z-index: 10;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-page);
  width: 100%;
}

.hero-inner { max-width: 48rem; }

.hero-badge {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero-badge-line {
  height: 2px;
  width: 3rem;
  background-color: var(--clr-secondary-container);
  flex-shrink: 0;
}

.hero-badge-text {
  font-family: var(--ff-label);
  font-size: 1.2rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--clr-secondary-container);
}

.hero h1 {
  font-family: var(--ff-display);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  line-height: 1.1;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-xl);
  letter-spacing: -0.02em;
}

.hero h1 .highlight { color: var(--clr-secondary-container); }

.hero-desc {
  color: rgb(255 255 255 / .8);
  font-size: 1.2rem;
  line-height: 1.75;
  margin-bottom: var(--space-2xl);
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Boutons Hero */
.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  background-color: var(--clr-secondary-container);
  color: var(--clr-on-secondary-container);
  padding: 1rem 2rem;
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 0.9375rem;
  border-bottom: 4px solid var(--clr-on-secondary-fixed-variant);
  box-shadow: 0 4px 16px rgb(0 0 0 / .25);
  transition: opacity var(--transition-std), transform var(--transition-fast);
  text-decoration: none;
}

.btn-hero-primary:hover       { opacity: .92; }
.btn-hero-primary:active      { transform: scale(.96); }
.btn-hero-primary:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* WhatsApp variant */
.btn-whatsapp {
  background-color: #25D366;
  color: #fff;
  border-bottom-color: #128C7E;
}
.btn-whatsapp:hover { opacity: .9; }

.btn-hero-outline {
  display: inline-block;
  border: 1px solid rgb(255 255 255 / .35);
  background: rgb(255 255 255 / .1);
  backdrop-filter: blur(12px);
  color: #fff;
  padding: 1rem 2rem;
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 0.9375rem;
  transition: background var(--transition-std), color var(--transition-std), transform var(--transition-fast);
}

.btn-hero-outline:hover       { background: #fff; color: var(--clr-primary); }
.btn-hero-outline:active      { transform: scale(.96); }
.btn-hero-outline:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* Indicateur de scroll */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  opacity: .55;
}

.scroll-label {
  font-family: var(--ff-label);
  font-size: .75rem;
  color: #fff;
  letter-spacing: .1em;
  writing-mode: vertical-rl;
}

.scroll-line {
  width: 1px;
  height: 3rem;
  background: rgb(255 255 255 / .5);
  position: relative;
  overflow: hidden;
}

.scroll-line-inner {
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 50%;
  background: #fff;
  animation: scrollDrop 2s ease-in-out infinite;
}

@keyframes scrollDrop {
  0%   { top: -50%; }
  100% { top: 150%; }
}

/* ========== 7. STATS ========== */
.stats-section {
  background-color: var(--clr-surface);
  border-top: 1px solid var(--clr-outline-variant);
  border-bottom: 1px solid var(--clr-outline-variant);
}

.stats-wrap {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-page);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-inline: 1px solid var(--clr-outline-variant);
}

.stat-item {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-right: 1px solid var(--clr-outline-variant);
  transition: background var(--transition-std);
}

.stat-item:last-child { border-right: none; }
.stat-item:hover      { background-color: var(--clr-surface-container-low); }

.stat-number {
  font-family: var(--ff-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
  transition: transform var(--transition-std);
  display: inline-block;
}

.stat-item:hover .stat-number { transform: scale(1.08); }

.stat-label {
  font-family: var(--ff-label);
  font-size: .75rem;
  color: var(--clr-secondary);
  text-transform: uppercase;
  letter-spacing: .12em;
}

/* ========== 8. SECTION POURQUOI ========== */
.why-section { padding: var(--space-4xl) 0; background-color: #fff; }

.why-header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-3xl);
  gap: var(--space-xl);
}

.why-header-left { max-width: 42rem; }

.section-title {
  font-family: var(--ff-headline);
  font-size: clamp(1.125rem, 2.25vw, 1.5rem);
  line-height: 1.25;
  font-weight: 600;
  color: var(--clr-primary);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.section-title-line {
  display: inline-block;
  width: 3rem;
  height: 2px;
  background-color: var(--clr-secondary);
  flex-shrink: 0;
}

.section-desc {
  color: var(--clr-on-surface-variant);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.ref-badge {
  font-family: var(--ff-label);
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--clr-outline);
  border: 1px solid var(--clr-outline);
  padding: var(--space-sm) var(--space-md);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Grille Bento */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}

/* Cartes partagées */
.card { position: relative; }

.card-icon {
  font-size: 2.25rem !important;
  margin-bottom: var(--space-lg);
  display: block;
}

.icon-secondary { color: var(--clr-secondary); }
.icon-primary   { color: var(--clr-primary);   }
.icon-accent    { color: var(--clr-secondary-container); }

.card-icon-bg {
  position: absolute;
  right: 0; top: 0;
  opacity: .05;
  pointer-events: none;
  font-size: 12.5rem !important;
  line-height: 1;
}

/* Carte 1 : Qualité */
.card-quality {
  grid-column: span 8;
  background-color: var(--clr-surface);
  border: 1px solid var(--clr-outline-variant);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 17.5rem;
  transition: border-color var(--transition-std);
}

.card-quality:hover { border-color: var(--clr-secondary); }

.card-title-main {
  font-family: var(--ff-headline);
  font-size: 1.25rem;
  line-height: 1.25;
  font-weight: 600;
  color: var(--clr-primary);
  margin-bottom: var(--space-md);
}

.card-text {
  color: var(--clr-on-surface-variant);
  max-width: 26rem;
  margin-bottom: var(--space-xl);
  line-height: 1.65;
  font-size: 0.875rem;
}

.card-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--clr-primary);
  font-weight: 700;
  transition: gap var(--transition-std);
}

.card-link:hover { gap: var(--space-lg); }

/* Carte 2 : Sur Mesure */
.card-custom {
  grid-column: span 4;
  background-color: var(--clr-primary);
  color: #fff;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background var(--transition-std);
}

.card-custom:hover { background-color: var(--clr-primary-container); }

.card-title-custom {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-md);
}

.card-text-custom {
  color: rgb(255 255 255 / .72);
  font-size: 0.875rem;
  line-height: 1.65;
}

.card-precision {
  margin-top: var(--space-xl);
  border-top: 1px solid rgb(255 255 255 / .12);
  padding-top: var(--space-xl);
}

.precision-label {
  font-family: var(--ff-label);
  font-size: .75rem;
  color: var(--clr-secondary-container);
  letter-spacing: .1em;
  margin-bottom: var(--space-sm);
}

.precision-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: #fff;
}

/* Carte 3 : Réactivité */
.card-react {
  grid-column: span 4;
  background-color: var(--clr-surface-container);
  border: 1px solid var(--clr-outline-variant);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.card-title-react {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
}

.card-text-react {
  color: var(--clr-on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Carte 4 : Specs */
.card-specs {
  grid-column: span 8;
  background-color: #fff;
  border: 1px solid var(--clr-outline-variant);
  padding: var(--space-xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xl);
  align-items: center;
  justify-content: space-around;
  overflow: hidden;
}

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

.spec-label {
  font-family: var(--ff-label);
  font-size: .875rem; /* Augmenté de 0.75rem */
  color: var(--clr-outline);
  letter-spacing: .05em;
  margin-bottom: var(--space-xs);
}

.spec-value {
  font-size: 1.625rem; /* Augmenté de 1.375rem */
  font-weight: 700;
  color: var(--clr-primary);
}

.spec-divider {
  width: 1px;
  height: 3rem;
  background-color: var(--clr-outline-variant);
}

/* ========== 8b. CAROUSEL CARDS ========== */
.carousel-viewport {
  overflow: hidden;
  width: 100%;
  position: relative;
  padding: 1.5rem 0.5rem;
  margin-inline: auto;
}

.carousel-track {
  display: flex;
  gap: var(--gutter);
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.carousel-card {
  flex: 0 0 100%;
  background-color: #ffffff !important; /* Force blancheur des cartes */
  border: 1px solid var(--clr-outline-variant);
  border-radius: 1rem;
  padding: var(--space-xl);
  min-height: 18rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: var(--space-md);
  box-shadow: 0 8px 30px rgb(0 0 0 / .04);
  transition: transform var(--transition-std), box-shadow var(--transition-std), border-color var(--transition-std);
}

.carousel-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgb(0 23 54 / .08);
  border-color: var(--clr-secondary);
}

.carousel-card-icon-wrap {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background-color: var(--clr-surface-container-low);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-secondary);
  transition: background-color var(--transition-std), color var(--transition-std);
}

.carousel-card-icon-wrap .material-symbols-outlined {
  font-size: 2rem !important; /* Icône plus visible */
}

.carousel-card:hover .carousel-card-icon-wrap {
  background-color: var(--clr-secondary);
  color: #ffffff;
}

.carousel-card h3 {
  font-family: var(--ff-headline);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--clr-primary);
  margin-top: var(--space-xs);
}

.carousel-card p {
  color: var(--clr-on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.6;
}

.carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.carousel-btn {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  border: 1px solid var(--clr-outline-variant);
  background-color: #ffffff;
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-std);
  box-shadow: 0 4px 12px rgb(0 0 0 / .05);
}

.carousel-btn:hover {
  background-color: var(--clr-primary);
  color: #ffffff;
  border-color: var(--clr-primary);
  transform: scale(1.05);
}

.carousel-dots {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--clr-outline-variant);
  cursor: pointer;
  transition: all var(--transition-std);
}

.carousel-dot.active {
  width: 24px;
  border-radius: 4px;
  background-color: var(--clr-secondary);
}

@media (max-width: 768px) {
  .carousel-viewport { 
    width: 100vw;
    margin-left: calc(-1 * var(--margin-page));
    padding: .5rem var(--margin-page) 0 var(--margin-page);
    overflow: hidden;
  }
  .carousel-card {
    flex: 0 0 100%;
    min-height: 14rem;
    padding: var(--space-sm);
    width: 100%;
    box-sizing: border-box;
  }
  .carousel-card-icon-wrap { width: 3rem; height: 3rem; }
  .carousel-card-icon-wrap .material-symbols-outlined { font-size: 1.5rem !important; }
  .carousel-controls { margin-top: var(--space-md); padding: 0 var(--margin-page); }
  .carousel-btn { width: 2.5rem; height: 2.5rem; }
  .carousel-dot { width: 6px; height: 6px; }
  .carousel-dot.active { width: 18px; }
}

/* ========== 9. CTA BANNER ========== */
.cta-section {
  padding: 5rem 0;
  background-color: var(--clr-primary);
  overflow: hidden;
  position: relative;
}

.cta-texture {
  position: absolute;
  inset: 0;
  background-image: url('img/carbon-fibre.png');
  opacity: .1;
  pointer-events: none;
}

.cta-z { position: relative; z-index: 1; }

.cta-inner {
  background-color: var(--clr-surface);
  padding: 4rem;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xl);
  box-shadow: 0 20px 60px rgb(0 0 0 / .3);
}

.cta-text { max-width: 30rem; }

.cta-text h2 {
  font-family: var(--ff-headline);
  font-size: clamp(1.125rem, 2.25vw, 1.5rem);
  line-height: 1.25;
  font-weight: 600;
  color: var(--clr-primary);
  margin-bottom: var(--space-lg);
}

.cta-text p {
  color: var(--clr-on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.65;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 16rem;
}

.btn-cta-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  background-color: var(--clr-secondary-container);
  color: var(--clr-on-secondary-container);
  padding: 1rem 2rem;
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgb(0 0 0 / .2);
  transition: transform var(--transition-std), opacity var(--transition-fast);
}

.btn-cta-primary:hover        { transform: scale(1.04); }
.btn-cta-primary:active       { transform: scale(.96); }
.btn-cta-primary:focus-visible { outline: 3px solid var(--clr-primary); outline-offset: 3px; }

.btn-cta-outline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  border: 1px solid var(--clr-outline);
  color: var(--clr-primary);
  padding: 1rem 2rem;
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 1rem;
  transition: background var(--transition-std);
}

.btn-cta-outline:hover        { background-color: var(--clr-surface-container); }
.btn-cta-outline:focus-visible { outline: 3px solid var(--clr-primary); outline-offset: 3px; }

/* ========== 10. FOOTER ========== */
footer {
  background-color: var(--clr-primary);
  color: var(--clr-on-primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
  padding: var(--space-2xl) var(--margin-page);
  max-width: var(--container-max);
  margin-inline: auto;
}

.footer-logo-wrap { margin-bottom: var(--space-md); }

.footer-logo-img {
  height: 7rem;
  width: auto;
}



.footer-brand-desc {
  color: var(--clr-surface-variant);
  opacity: .8;
  max-width: 17.5rem;
  line-height: 1.65;
}

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

.footer-col h2 {
  font-weight: 700;
  color: var(--clr-secondary-fixed);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .875rem;
}

.footer-col a {
  color: var(--clr-surface-variant);
  opacity: .8;
  transition: color var(--transition-std), opacity var(--transition-std);
}

.footer-col a:hover {
  color: var(--clr-secondary-fixed);
  opacity: 1;
}

.footer-contact-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  color: var(--clr-surface-variant);
  opacity: .8;
}

.icon-accent-footer { color: var(--clr-secondary-fixed); flex-shrink: 0; }

.social-icon {
  color: var(--clr-secondary-fixed);
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
}

.footer-bottom {
  border-top: 1px solid rgb(116 119 128 / .3);
  padding: var(--space-lg) var(--margin-page);
  max-width: var(--container-max);
  margin-inline: auto;
  text-align: center;
}

.footer-bottom-text {
  color: #ffffff;
  opacity: .8;
  font-size: .875rem;
  line-height: 1.6;
}

.footer-bottom-text a {
  color: #fe8028;
  opacity: 1;
  transition: color var(--transition-std), opacity var(--transition-std);
}

.footer-bottom-text a:hover {
  color: #ffffff;
  opacity: 1;
}

.powered-by {
  color: #fe8028;
  font-weight: 600;
  opacity: 1;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
}

.powered-by img {
  height: 20px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
}

.footer-socials { display: flex; gap: var(--space-lg); }

.footer-socials a {
  color: var(--clr-surface-variant);
  opacity: .6;
  transition: opacity var(--transition-std);
}

.footer-socials a:hover { opacity: 1; }

/* ========== 11. MOBILE BOTTOM BAR ========== */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background: rgb(250 248 255 / .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--clr-outline-variant);
  justify-content: space-around;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  box-shadow: 0 -4px 16px rgb(0 0 0 / .1);
}

.mob-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--clr-on-surface-variant);
  text-decoration: none;
  padding: var(--space-sm);
  border-radius: .75rem;
  transition: background var(--transition-fast);
  gap: 2px;
}

.mob-nav-item:hover { background-color: var(--clr-surface-container-high); }

.mob-nav-label {
  font-family: var(--ff-label);
  font-size: .625rem;
  margin-top: 2px;
}

.cta-mob {
  background-color: var(--clr-secondary-container);
  color: var(--clr-on-secondary-container);
  border-radius: 1rem;
  padding: var(--space-sm) var(--space-lg);
  box-shadow: 0 4px 12px rgb(0 0 0 / .2);
  transform: translateY(-8px) scale(1.08);
}

.cta-mob:hover { background-color: var(--clr-secondary-container); opacity: .9; }

/* ========== 12. RESPONSIVE — Tablette (max 1024px) ========== */
@media (max-width: 1024px) {
  :root { --margin-page: 32px; }

  .header-inner { padding: var(--space-md) var(--margin-page); }

  /* Hero tablet */
  .hero { min-height: 70vh; }
  .hero-inner { max-width: 40rem; }
  .hero h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
  .hero-desc { font-size: 1rem; max-width: 28rem; }

  /* Stats tablet */
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .stat-item { padding: var(--space-xl); }
  .stat-number { font-size: 2.5rem; }

  /* Why section tablet */
  .why-header { flex-direction: column; align-items: flex-start; gap: var(--space-md); }
  .why-header-left { max-width: 100%; }

  .bento-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
  .card-quality { grid-column: span 2; }
  .card-custom,
  .card-react   { grid-column: span 1; }
  .card-specs   { grid-column: span 2; }

  /* CTA tablet */
  .cta-inner { flex-direction: column; text-align: center; gap: var(--space-xl); }
  .cta-text { max-width: 100%; }
  .cta-actions { width: 100%; flex-direction: column; min-width: unset; }
  .btn-cta-primary,
  .btn-cta-outline { width: 100%; justify-content: center; }

  /* Footer tablet */
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ========== 13. RESPONSIVE — Mobile (max 768px) ========== */
@media (max-width: 768px) {
  :root { --margin-page: 16px; }

  body {
    padding-top: 56px; /* Espacement pour le header fixe en mobile */
  }

  /* ── Header ── */
  .main-nav { display: none; }
  .menu-btn { display: flex; }
  .header-inner {
    padding: var(--space-sm) var(--margin-page);
  }
  .mobile-nav a { padding-inline: var(--margin-page); }

  /* ── Hero ── */
  .hero {
    height: auto;
    min-height: 80vh;
    padding-block: 4rem 6rem;
  }
  .hero-inner { max-width: 100%; }
  .hero h1 { font-size: clamp(1.5rem, 8vw, 2.25rem); }
  .hero-desc { font-size: 1rem; max-width: 100%; line-height: 1.6; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: var(--space-sm); }
  .btn-hero-primary,
  .btn-hero-outline {
    font-size: .9375rem;
    padding: .875rem 1.25rem;
    text-align: center;
    width: 100%;
  }

  /* ── Stats ── */
  .stats-wrap { padding-inline: var(--margin-page); }
  .stats-grid { grid-template-columns: 1fr; border-inline: none; }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--clr-outline-variant);
    padding: var(--space-lg);
  }
  .stat-item:last-child { border-bottom: none; }

  /* ── Pourquoi BMS ── */
  .why-section { padding-block: var(--space-2xl); }
  .why-section .container { padding-inline: 0; }
  .why-header {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: var(--space-xl);
    padding-inline: var(--margin-page);
  }
  .ref-badge { display: none; }
  .section-desc { font-size: 1rem; }

  .bento-grid { grid-template-columns: 1fr; gap: 0; }
  .card-quality,
  .card-custom,
  .card-react,
  .card-specs { grid-column: span 1; }

  .card-quality { 
    padding: 0; 
    min-height: auto;
    overflow: visible;
    border: none;
  }
  .card-custom  { padding: var(--space-lg); margin-top: var(--space-md); }
  .card-react   { padding: var(--space-lg); margin-top: var(--space-md); }
  .card-specs   { gap: var(--space-lg); justify-content: center; margin-top: var(--space-md); }
  .spec-divider { display: none; }

  /* Police cartes sur mobile */
  .card-title-main   { font-size: 1.375rem; }
  .card-text         { font-size: .9375rem; }
  .card-title-custom { font-size: 1.375rem; }
  .card-text-custom  { font-size: .9375rem; }
  .card-title-react  { font-size: 1.25rem; }
  .card-text-react   { font-size: .9375rem; }
  .spec-value        { font-size: 1.25rem; }
  .spec-label        { font-size: .75rem; }

  /* Carousel dans card-quality */
  .carousel-card h3  { font-size: 1.125rem; }
  .carousel-card p   { font-size: .9375rem; }

  /* ── CTA ── */
  .cta-section { padding-block: var(--space-xl); }
  .cta-inner {
    flex-direction: column;
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    gap: var(--space-xl);
  }
  .cta-text { max-width: 100%; }
  .cta-text h2 { font-size: 1.5rem; }
  .cta-text p  { font-size: 1rem; }
  .cta-actions {
    width: 100%;
    flex-direction: column;
    gap: var(--space-md);
    min-width: unset;
  }
  .btn-cta-primary,
  .btn-cta-outline {
    padding: .875rem 1.25rem;
    font-size: 1rem;
    width: 100%;
    text-align: center;
  }

  /* ── Footer ── */
  .footer-grid {
    grid-template-columns: 1fr;
    padding: var(--space-xl) var(--margin-page);
    gap: var(--space-xl);
  }
  .footer-logo-img { height: 4rem; }
  .footer-brand-desc { font-size: .9375rem; }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding-inline: var(--margin-page);
    padding-block: var(--space-md);
  }
  .footer-bottom-text {
    font-size: .75rem;
    line-height: 1.8;
  }

  /* ── Mobile bar ── */
  .mobile-bottom-bar { display: flex; }
  body { padding-bottom: 4.5rem; }

  .scroll-indicator { display: none; }
}

/* ========== 14. Mobile moyen (max 600px) ========== */
@media (max-width: 600px) {
  :root { --margin-page: 14px; }
  .hero h1 { font-size: clamp(1.5rem, 6vw, 2rem); }
  .hero-desc { font-size: .9375rem; }
  .carousel-card { min-height: 13rem; padding: var(--space-sm); }
  .carousel-card-icon-wrap { width: 2.75rem; height: 2.75rem; }
}

/* ========== 15. Petit mobile (max 480px) ========== */
@media (max-width: 480px) {
  :root { --margin-page: 12px; }
  .hero h1 { font-size: clamp(1.375rem, 7vw, 1.875rem); }
  .hero-desc { font-size: .875rem; }
  .hero-actions { gap: var(--space-xs); }
  .btn-hero-primary,
  .btn-hero-outline {
    font-size: .875rem;
    padding: .75rem 1rem;
  }
  .carousel-card { min-height: 12rem; padding: var(--space-xs); }
  .carousel-card h3 { font-size: 1.125rem; }
  .carousel-card p { font-size: .875rem; }
  .carousel-card-icon-wrap { width: 2.5rem; height: 2.5rem; }
  .carousel-btn { width: 2.25rem; height: 2.25rem; }
}

/* ========== 16. Très petit écran (max 360px) ========== */
@media (max-width: 360px) {
  :root { --margin-page: 10px; }
  .hero h1 { font-size: 1.25rem; }
  .hero-desc { font-size: .8125rem; }
  .section-title { font-size: 1.125rem; }
  .section-desc { font-size: .875rem; }
  .carousel-card { min-height: 11rem; padding: var(--space-xs); }
  .carousel-card h3 { font-size: 1rem; }
  .carousel-card p { font-size: .8125rem; }
  .card-title-custom { font-size: 1.125rem; }
  .card-text-custom { font-size: .875rem; }
  .card-title-react { font-size: 1rem; }
  .card-text-react { font-size: .875rem; }
  .stat-number { font-size: 1.5rem; }
  .stat-label { font-size: .625rem; }
  .btn-cta-primary,
  .btn-cta-outline {
    font-size: .875rem;
    padding: .75rem 1rem;
  }
}

/* ========== 15. FOCUS visible global ========== */
:focus-visible {
  outline: 2px solid var(--clr-secondary-container);
  outline-offset: 3px;
}

/* ========== 16. PAGE MENTIONS LÉGALES ========== */
.legal-section {
  padding: 3rem 2rem;
  background-color: #ffffff;
  max-width: 1200px;
  margin: 0 auto;
}

.page-title {
  font-family: var(--ff-headline);
  font-size: 2rem;
  font-weight: 700;
  color: #000;
  margin-bottom: 2rem;
}

.legal-content {
  max-width: 100%;
}

.legal-content h2 {
  font-family: var(--ff-headline);
  font-size: 1.25rem;
  font-weight: 600;
  color: #000;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

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

.legal-content p {
  color: #333;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.legal-content strong {
  color: #000;
  font-weight: 600;
}

.legal-content a {
  color: #fe8028;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-std);
}

.legal-content a:hover {
  color: #000;
  text-decoration: underline;
}

@media (max-width: 768px) {
  .legal-section {
    padding: 2rem 1.5rem;
  }
  .page-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }
  .legal-content h2 {
    font-size: 1.125rem;
    margin-top: 1.5rem;
  }
  .legal-content p {
    font-size: 0.9375rem;
  }
}

/* ========== 17. PAGE SERVICES ========== */
.services-hero {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #1a365d 100%);
  padding: var(--space-3xl) var(--margin-page);
  text-align: center;
}

.services-hero-title {
  font-family: var(--ff-headline);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-md);
}

.services-hero-subtitle {
  color: rgb(255 255 255 / .9);
  font-size: 1.125rem;
  max-width: 40rem;
  margin: 0 auto;
}

.services-section {
  padding: var(--space-3xl) var(--margin-page);
  background-color: var(--clr-surface);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background-color: #ffffff;
  border: 1px solid var(--clr-outline-variant);
  border-radius: 1rem;
  padding: var(--space-xl);
  transition: transform var(--transition-std), box-shadow var(--transition-std);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgb(0 0 0 / .1);
}

.service-icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--clr-secondary) 0%, #e66a1c 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.service-icon .material-symbols-outlined {
  font-size: 2rem;
  color: #ffffff;
}

.service-title {
  font-family: var(--ff-headline);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
}

.service-description {
  color: var(--clr-on-surface-variant);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

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

.service-features li {
  color: var(--clr-on-surface-variant);
  font-size: 0.875rem;
  padding: var(--space-xs) 0;
  padding-left: 1.25rem;
  position: relative;
}

.service-features li::before {
  content: "•";
  color: var(--clr-secondary);
  font-weight: 700;
  position: absolute;
  left: 0;
}

.services-cta {
  background-color: var(--clr-primary);
  padding: var(--space-3xl) var(--margin-page);
  text-align: center;
}

.cta-title {
  font-family: var(--ff-headline);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-md);
}

.cta-subtitle {
  color: rgb(255 255 255 / .9);
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .services-hero {
    padding: var(--space-2xl) var(--margin-page);
  }
  .services-hero-title {
    font-size: 1.75rem;
  }
  .services-hero-subtitle {
    font-size: 1rem;
  }
  .services-section {
    padding: var(--space-xl) var(--margin-page);
  }
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .service-card {
    padding: var(--space-lg);
  }
  .service-icon {
    width: 3rem;
    height: 3rem;
  }
  .service-icon .material-symbols-outlined {
    font-size: 1.5rem;
  }
  .service-title {
    font-size: 1.125rem;
  }
  .services-cta {
    padding: var(--space-xl) var(--margin-page);
  }
  .cta-title {
    font-size: 1.375rem;
  }
  .cta-subtitle {
    font-size: 1rem;
  }
}

/* ========== 18. PAGE À PROPOS ========== */
.about-hero {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #1a365d 100%);
  padding: var(--space-3xl) var(--margin-page);
  text-align: center;
}

.about-hero-title {
  font-family: var(--ff-headline);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-md);
}

.about-hero-subtitle {
  color: rgb(255 255 255 / .9);
  font-size: 1.125rem;
  max-width: 40rem;
  margin: 0 auto;
}

.about-content {
  padding: var(--space-3xl) var(--margin-page);
  background-color: var(--clr-surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.about-text {
  max-width: 100%;
}

.about-section-title {
  font-family: var(--ff-headline);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--clr-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.about-section-title:first-child {
  margin-top: 0;
}

.about-paragraph {
  color: var(--clr-on-surface-variant);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.about-values {
  list-style: none;
  padding: 0;
  margin: 0;
}

.about-values li {
  color: var(--clr-on-surface-variant);
  font-size: 1rem;
  line-height: 1.75;
  padding: var(--space-xs) 0;
  padding-left: 1.5rem;
  position: relative;
}

.about-values li::before {
  content: "✓";
  color: var(--clr-secondary);
  font-weight: 700;
  position: absolute;
  left: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.stat-card {
  background-color: #ffffff;
  border: 1px solid var(--clr-outline-variant);
  border-radius: 1rem;
  padding: var(--space-xl);
  text-align: center;
  transition: transform var(--transition-std), box-shadow var(--transition-std);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgb(0 0 0 / .1);
}

.stat-number {
  font-family: var(--ff-headline);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--clr-secondary);
  margin-bottom: var(--space-sm);
}

.stat-label {
  color: var(--clr-on-surface-variant);
  font-size: 0.9375rem;
  font-weight: 500;
}

.about-cta {
  background-color: var(--clr-primary);
  padding: var(--space-3xl) var(--margin-page);
  text-align: center;
}

@media (max-width: 768px) {
  .about-hero {
    padding: var(--space-2xl) var(--margin-page);
  }
  .about-hero-title {
    font-size: 1.75rem;
  }
  .about-hero-subtitle {
    font-size: 1rem;
  }
  .about-content {
    padding: var(--space-xl) var(--margin-page);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .about-section-title {
    font-size: 1.25rem;
    margin-top: var(--space-lg);
  }
  .about-paragraph {
    font-size: 0.9375rem;
  }
  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .stat-card {
    padding: var(--space-lg);
  }
  .stat-number {
    font-size: 2rem;
  }
  .stat-label {
    font-size: 0.875rem;
  }
  .about-cta {
    padding: var(--space-xl) var(--margin-page);
  }
  .cta-title {
    font-size: 1.375rem;
  }
  .cta-subtitle {
    font-size: 1rem;
  }
}