/* ---------------- RESET ---------------- */
*{margin:0;}

html {
  scroll-behavior: smooth;
}

header {
    width: 100%;
    position: relative;
    height: 60px;
    display: flex;
    align-items: center;
}

/* ---------------- COLOR ---------------- */
:root {
  --color-bg-main: white;
  --color-bg-alter: #F2F2F2;
  --color-text-main: black;
  --color-text-alter: white;
  --color-trigger-main: #3977EB;
  --color-trigger-alter: #0e365d;
}

/* FONT -------------------------------- */
@font-face{font-family: 'Montserrat';src: url(../fonts/Montserrat-VariableFont_wght.ttf);}
@font-face {font-family: 'Raleway'; src: url(../fonts/Raleway-VariableFont_wght.ttf);}

/* ---------------- NAV BARRE ---------------- */

.nav-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-main);
    z-index: 100;
    display: flex;
    justify-content: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 20px;
    padding: 30px 0px;
    background-color: var(--color-bg-main);
    width: 100%;
    max-width: 1440px;
    padding-left: 50px;
    padding-right: 50px;
    box-sizing: border-box;
}

.logo-CMB3D {
  height: 40px;
}

#menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

#menu a {
  display: block;
  padding: 5px 20px;
  font-family: 'Raleway', arial;
  text-decoration: none;
  border-radius: 50px;
}

#menu a.active {
  text-decoration: underline;
}

.onglet {
  color: var(--color-text-main);
  text-transform: capitalize;
}

.onglet:hover {
  background-color: var(--color-trigger-main);
  color: var(--color-text-alter);
  transition: all 0.5s ease;
  box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
}

.contact {
  background-color: var(--color-trigger-main);
  color: var(--color-text-alter);
  transition: all 0.5s ease;
  box-shadow: 0px 2px 4px 0px rgba(0,0,0,0.5);
  text-transform: uppercase;
}

.contact:hover {
  background-color: var(--color-trigger-alter);
  color: var(--color-text-alter);
}

/* ---------------- MENU BURGER ---------------- */

/* Cache la checkbox */
#menu-toggle {
  display: none;
}

/* Container du burger */
.menu-icon {
  display: none;
  position: relative;
  width: 30px;
  height: 25px;
  cursor: pointer;
}

/* Les barres */
.menu-icon span {
  position: absolute;      /* empile toutes les barres */
  left: 0;
  top: 50%;                /* centre verticalement */
  width: 100%;
  height: 4px;
  background: var(--color-trigger-main);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Décalage initial des barres */
.menu-icon span:nth-child(1) { transform: translateY(-8px); }
.menu-icon span:nth-child(2) { transform: translateY(0); }
.menu-icon span:nth-child(3) { transform: translateY(8px); }

/* Mobile menu styles */
@media screen and (max-width: 768px) {

  .nav-container {
    padding-left: 5px;
    padding-right: 10px;
  }

  #menu {
    display: none;
    flex-direction: column;
    background-color: var(--color-bg-main);
    position: absolute;
    top: 60px;
    right: 0;
    width: 200px;
    padding: 10px;
    gap: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }

  /* Affiche le menu quand la checkbox est cochée */
  #menu-toggle:checked + .menu-icon + #menu {
    display: flex;
  }

  /* Affiche le bouton burger */
  .menu-icon {
    display: flex;
  }

  /* Animation burger → croix */
  #menu-toggle:checked + .menu-icon span:nth-child(1) {
    transform: rotate(45deg);
  }
  #menu-toggle:checked + .menu-icon span:nth-child(2) {
    opacity: 0;
  }
  #menu-toggle:checked + .menu-icon span:nth-child(3) {
    transform: rotate(-45deg);
  }

  /* Ajuste les liens menu */
  #menu a {
    padding: 10px;
  }
}