/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem var(--container-padding);
    max-width: var(--container-max-width);
    margin: 0 auto;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.site-logo a {
    display: flex;
    align-items: center;
}

.site-logo img {
    height: 50px;
    width: auto;
    transition: transform var(--transition-normal);
}

.site-logo img:hover {
    transform: scale(1.05);
}

/* Navigation principale */
.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.primary-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin: 0;
    padding: 0;
}

.primary-menu > li {
    position: relative;
}

.primary-menu > li > a {
    display: block;
    padding: 0.5rem 0;
    color: var(--color-text);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
    position: relative;
}

.primary-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
}

.primary-menu > li > a:hover {
    color: var(--color-primary);
}

.primary-menu > li > a:hover::after,
.primary-menu > li.current-menu-item > a::after {
    width: 100%;
}

/* Sous-menus */
.primary-menu li.menu-item-has-children {
    position: relative;
}

.primary-menu li.menu-item-has-children > a::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    margin-left: 0.5rem;
    vertical-align: middle;
    transition: transform var(--transition-fast);
}

.primary-menu li.menu-item-has-children:hover > a::before {
    transform: rotate(180deg);
}

.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 100;
}

.primary-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu li {
    margin: 0;
}

.sub-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-text);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sub-menu a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
    padding-left: 2rem;
}

/* Sélecteur de langue */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.language-switcher a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-sm);
    color: var(--color-text-light);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.language-switcher a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.language-switcher a.current-lang {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Boutons CTA Header */
.header-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-login {
    padding: 0.625rem 1.25rem;
    color: var(--color-primary);
    font-weight: 600;
    border: 2px solid var(--color-primary);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.btn-login:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-demo {
    padding: 0.625rem 1.5rem;
    background: var(--gradient-secondary);
    color: var(--color-white);
    font-weight: 600;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

/* Menu mobile toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
}

/* ==========================================================================
   RESPONSIVE HEADER
   ========================================================================== */

@media (max-width: 1024px) {
    .primary-menu {
        gap: var(--spacing-sm);
    }
    
    .primary-menu > li > a {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-navigation {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .main-navigation.active {
        opacity: 1;
        visibility: visible;
    }
    
    .primary-menu {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
        width: 100%;
        padding: var(--spacing-md);
    }
    
    .primary-menu > li {
        width: 100%;
        text-align: center;
    }
    
    .primary-menu > li > a {
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm) 0;
    }
    
    /* Sous-menus mobile */
    .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--color-bg-light);
        margin-top: var(--spacing-sm);
        border-radius: var(--border-radius-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal);
    }
    
    .primary-menu li.menu-item-has-children.open > .sub-menu {
        max-height: 500px;
    }
    
    .header-cta {
        flex-direction: column;
        width: 100%;
        padding: 0 var(--spacing-md);
    }
    
    .btn-login,
    .btn-demo {
        width: 100%;
        text-align: center;
        padding: 0.875rem;
    }
    
    .language-switcher {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .site-logo img {
        height: 40px;
    }
    
    .header-container {
        padding: 0.75rem var(--container-padding);
    }
}


/* --- Logo robustness (prevent squished / tiny logo) --- */
.site-logo img,
.site-logo .custom-logo,
.site-logo .site-logo-img {
    height: 44px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    display: block;
}

.custom-logo-link { display:flex; align-items:center; }

@media (max-width: 480px){
  .site-logo img,
  .site-logo .custom-logo,
  .site-logo .site-logo-img{
    height: 38px;
    max-width: 180px;
  }
}

/* Masquer le sélecteur de langue temporairement */
.language-switcher {
    display: none !important;
}