/* ========================================
   Header & Navigation Styles
   ======================================== */

.navbar {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid var(--color-light);
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  margin: 10px;
  padding: 0;
  background: transparent;
  box-shadow: none;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: translateY(-1px);
}

.logo__img {
  height: 84px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.22));
  transition: transform var(--transition-base), filter var(--transition-base);
}

.logo:hover .logo__img {
  transform: scale(1.08);
  filter: drop-shadow(0 6px 14px rgba(26, 95, 122, 0.28));
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
  margin: 0;
  padding: 0;

  > li {
    margin: 0;
  }
}

.nav-link {
  color: var(--color-dark);
  font-weight: 500;
  transition: color var(--transition-fast);
  text-decoration: none;
  padding: var(--spacing-sm) 0;
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  text-decoration: none;
}

.nav-link.btn {
  border-bottom-color: transparent;
  padding: var(--spacing-sm) var(--spacing-lg);
}

.nav-link.btn--donate-nav {
  background-color: var(--color-primary-light); /* Bleu clair */
  color: var(--color-white);
  border-radius: 50px;
  padding: calc(var(--spacing-sm) * 0.8) var(--spacing-lg);
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(47, 143, 184, 0.2);
  border: 2px solid transparent;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-link.btn--donate-nav:hover {
  background-color: var(--color-primary); /* Slightly darker on hover for effect */
  color: var(--color-white);
  box-shadow: 0 6px 14px rgba(47, 143, 184, 0.35);
  transform: translateY(-2px);
  border-bottom-color: transparent;
}

/* Search Button & Input */
.search-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.search-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid #dadce0;
  background: #fff;
  color: #5f6368;
  box-shadow: 0 1px 2px rgba(60, 64, 67, 0.08);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-btn:hover {
  background-color: #f8f9fa;
  border-color: #c4c7cc;
  color: #202124;
  box-shadow: 0 2px 6px rgba(60, 64, 67, 0.14);
  transform: translateY(-1px);
}

.search-btn:focus-visible {
  outline: none;
  border-color: #1a73e8;
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
}

.search-btn__icon {
  width: 22px;
  height: 22px;
  display: block;
}

.search-btn__icon circle,
.search-btn__icon line {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.1;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.search-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-body);
  font-family: inherit;
  max-width: 0;
  opacity: 0;
  transition: all var(--transition-base);
  pointer-events: none;
}

.search-input.active {
  max-width: 200px;
  opacity: 1;
  pointer-events: auto;
  border-color: var(--color-primary);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.1);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger__line {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-dark);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.hamburger.active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(10px, -10px);
}

/* Mobile Menu */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    align-items: center;
    justify-content: center;
  }

  .nav-menu.active {
    max-height: 500px;
  }

  .nav-link {
    width: 100%;
    display: block;
    padding: var(--spacing-md);
    text-align: center;
  }

  .nav-link.btn {
    text-align: center;
    margin-top: var(--spacing-md);
  }

.nav-link.btn--donate-nav {
  background-color: var(--color-primary-light); /* Bleu clair */
  color: var(--color-white);
  border-radius: 50px;
  padding: calc(var(--spacing-sm) * 0.8) var(--spacing-lg);
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(47, 143, 184, 0.2);
  border: 2px solid transparent;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-link.btn--donate-nav:hover {
  background-color: var(--color-primary); /* Slightly darker on hover for effect */
  color: var(--color-white);
  box-shadow: 0 6px 14px rgba(47, 143, 184, 0.35);
  transform: translateY(-2px);
  border-bottom-color: transparent;
}

  .search-btn {
    display: none;
  }

  .navbar__container {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .logo__img {
    height: 68px;
  }
}