body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Header container */
.menu {
  display: flex;
  position: fixed;
  width: 100%;
  z-index: 10;
  justify-content: space-between;
  align-items: center;
  max-width: 100%;
  padding: 15px 30px;
  background: linear-gradient(to top, #00000000 0%, #000000 100%);
}

/* Logo */
#logo {
  height: 4vw;
  min-height: 75px;
  cursor: pointer;
}

/* Menu desktop */
nav ul {
  list-style: none;
  display: flex;
  align-items: center;
}

nav ul li {
  overflow: hidden;
  transform: translateY(-200px);
}

.cssmenu{
  color: var(--color-claire);
  text-decoration: none;
  padding: 13px 20px;
  margin: 0 15px;
  border-radius: 15px;
  font-weight: 600;
  font-size: 1.2rem;
  transition: all 0.3s;
}

.cssmenu:hover{
  background-color: var(--color-menu);
  color: var(--color-claire);
  box-shadow: 3px 3px 10px var(--second-color-sombre-30);
}

.is-active .cssmenu{
  background-color: var(--color-claire-30);
  box-shadow: 3px 3px 10px var(--second-color-sombre-30);
  transition: all 0.3s;
}

.is-active .cssmenu:hover{
  background-color: var(--second-color);
}

/* Hamburger menu button (hidden desktop) */
#hamburger-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

#hamburger-btn .bar {
  width: 25px;
  height: 3px;
  background-color: var(--color-claire);
  border-radius: 2px;
  transition: 0.3s;
}

/* Hamburger active animation */
#hamburger-btn.active .bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

#hamburger-btn.active .bar:nth-child(2) {
  opacity: 0;
}

#hamburger-btn.active .bar:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Responsive styles */
@media (max-width: 768px) {
  .menu{
    padding: 0 30px 0 0;
    width: 100%;
  }
  /* Show hamburger */
  #hamburger-btn {
    display: flex;
  }

  /* Hide menu by default */
  nav ul {
    position: fixed;
    top: 0; /* hauteur header */
    right: 0;
    padding-top: 65px;
    width: 250px;
    height: 100%;
    background-color: #00000050;
    backdrop-filter: blur(10px);
    flex-direction: column;
    gap: 20px;
    padding: calc(65px + 20px) 20px;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: -1;
  }

  /* Show menu when active */
  nav ul.active {
    transform: translateX(0);
    overflow-y: none;
  }

  /* Center text in mobile menu */
  nav ul li a {
    font-size: 1.2rem;
  }
}