/* ==========================================================================
   LAYOUT.CSS - Conteneurs, grilles et mise en page
   ========================================================================== */

/* Conteneurs fluides */
.container {
  width: 100%;
  max-width: clamp(20rem, 92vw, 75rem);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-wide {
  width: 100%;
  max-width: clamp(20rem, 95vw, 87.5rem);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-full {
  width: 100%;
  padding: 0 var(--space-md);
}

/* Sections principales */
.section {
  padding: var(--space-3xl) 0;
}

.section--sm {
  padding: var(--space-2xl) 0;
}

.section--lg {
  padding: calc(var(--space-3xl) * 1.5) 0;
}

/* Header fixe */
.header {
  position: fixed;
  height: 10%;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all var(--transition-base);
  display: flex;
  justify-content:center;
  align-items: center;
  .container {
    display: flex;
    justify-content:center;
    align-items: center;
  }
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-item:hover,
.nav-item:focus {
  color: var(--color-primary);
}

/* Dropdown Navigation */
.nav-dropdown {
  position: relative;
}

.nav-item--dropdown::after {
  content: ' ▾';
  font-size: 0.8em;
  margin-left: 0.25rem;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
  list-style: none;
  margin: 0;
  padding: var(--space-sm);
  min-width: 12rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: all 0.3s ease;
  z-index: 1000;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu .nav-item {
  display: block;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.nav-dropdown-menu .nav-item:hover,
.nav-dropdown-menu .nav-item:focus {
  background-color: var(--color-gray-light);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.nav-toggle span {
  width: 1.5rem;
  height: 0.125rem;
  background: var(--color-text);
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.3rem, 0.3rem);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.3rem, -0.3rem);
}

/* Navigation mobile */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 10%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    height: 90vh;
    overflow-y: auto;
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    margin-top: 1rem;
  }
}

/* Hero section centrée */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--color-white);
  padding-top: 6rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2xl);
  max-width: 100%;
  padding-top: 15rem;

  @media (max-width: 768px) {
    padding-top: 10rem;
  }
}

/* Grilles responsives */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
}

/* Grille solutions spécifique */
.solutions-grid {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--space-lg);
  height: clamp(30rem, 50vh, 37.5rem);
}

/* Flexbox utilitaires */
.flex {
  display: flex;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  justify-content: space-between;
}

.flex--column {
  flex-direction: column;
}

.flex--wrap {
  flex-wrap: wrap;
}

/* Positionnement */
.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

/* Centrage */
.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* Cards et animations flottantes */
.hero-cards {
  position: relative;
  height: clamp(25rem, 40vh, 31.25rem);
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-card {
  position: absolute;
  width: clamp(6rem, 10vw, 7.5rem);
  height: clamp(6rem, 10vw, 7.5rem);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
}

/* Footer */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12.5rem, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-gray-dark);
  color: var(--color-gray-medium);
}

/* Responsive breakpoints */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .hero-content {
    gap: var(--space-xl);
  }

  .solutions-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    height: auto;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .container,
  .container-wide {
    padding: 0 var(--space-sm);
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}