/* Header — Boston Scientific theme
   Class name .alstom-header kept for template compatibility; to be renamed later.
*/

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

.alstom-header {
    background-color: var(--neutral-100);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-secondary);
}

.header-container {
    max-width: 1860px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-6);
    gap: var(--space-6);
}

/* Logo */
.header-logo {
    flex-shrink: 0;
}

.header-logo a {
    text-decoration: none;
    display: block;
    line-height: 0;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

/* Primary navigation */
.header-nav {
    flex-grow: 1;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--neutral-20);
    text-decoration: none;
    font-size: var(--fs-body-subtle);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family-sans);
    transition: color 0.15s ease;
    white-space: nowrap;
    padding: var(--space-2) 0;
}

.nav-link:hover {
    color: var(--color-interactive-hover);
}

.nav-link.active {
    color: var(--color-interactive);
    text-decoration: underline;
    text-underline-offset: 4px;
}

/* Right-side menu */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-shrink: 0;
}

.header-link {
    color: var(--neutral-20);
    text-decoration: none;
    font-size: var(--fs-body-subtle);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family-sans);
    transition: color 0.15s ease;
    white-space: nowrap;
}

.header-link:hover {
    color: var(--color-interactive-hover);
}

.header-connexion {
    color: var(--color-interactive);
}

/* Language selector */
.language-selector {
    position: relative;
}

.language-btn {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    transition: background-color 0.15s ease;
}

.language-btn:hover {
    background-color: var(--color-bg-subtle);
}

.flag-icon {
    width: 24px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
}

.dropdown-icon {
    font-size: var(--fs-small);
    color: var(--color-text-subtle);
    transition: transform 0.15s ease;
}

.language-selector:hover .dropdown-icon {
    transform: rotate(180deg);
}

.language-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--neutral-100);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-secondary);
    list-style: none;
    min-width: 160px;
    padding: var(--space-2) 0;
    z-index: 100;
}

.language-selector::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 0;
    width: 100%;
    height: 10px;
    background: transparent;
}

.language-selector:hover .language-dropdown {
    display: block;
}

.language-dropdown li {
    margin: 0;
}

.language-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--fs-body-subtle);
    font-family: var(--font-family-sans);
    transition: background-color 0.15s ease;
}

.language-dropdown a:hover {
    background-color: var(--color-bg-subtle);
}

.language-dropdown a.active {
    background-color: var(--color-interactive-tint);
    color: var(--color-interactive);
}

.language-dropdown img {
    width: 24px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
}

/* Authenticated user menu */
.user-menu {
    position: relative;
}

.user-profile-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-pill);
    text-decoration: none;
    color: var(--color-text);
    font-family: var(--font-family-sans);
    font-size: var(--fs-body-subtle);
    font-weight: var(--font-weight-medium);
    transition: background-color 0.15s ease;
    cursor: pointer;
    background: none;
    border: none;
}

.user-profile-link:hover {
    background-color: var(--color-bg-subtle);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-interactive);
    flex-shrink: 0;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-initials {
    color: var(--neutral-100);
    font-family: var(--font-family-sans);
    font-size: var(--fs-body-subtle);
    font-weight: var(--font-weight-semibold);
}

.user-name {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-menu.active .user-profile-link {
    background-color: var(--color-bg-subtle);
}

.user-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--neutral-100);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-secondary);
    list-style: none;
    min-width: 200px;
    padding: var(--space-2) 0;
    z-index: 100;
    margin-top: var(--space-1);
}

.user-menu.active .user-dropdown {
    display: block;
}

.user-dropdown li {
    margin: 0;
}

.user-dropdown a {
    display: block;
    padding: var(--space-3) var(--space-4);
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--fs-body-subtle);
    font-family: var(--font-family-sans);
    transition: background-color 0.15s ease;
}

.user-dropdown a:hover {
    background-color: var(--color-bg-subtle);
}

.user-dropdown .logout-link {
    color: var(--feedback-error-40);
}

.user-dropdown .logout-link:hover {
    background-color: var(--feedback-error-95);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--color-border-subtle);
    margin: var(--space-2) 0;
}

/* Template selector (dashboard) */
.template-selector {
    position: relative;
}

.template-selector__btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-interactive-tint);
    border: 1px solid var(--color-interactive);
    border-radius: var(--radius-md);
    color: var(--color-interactive);
    font-family: var(--font-family-sans);
    font-size: var(--fs-body-subtle);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
}

.template-selector__btn:hover {
    background: rgba(var(--color-interactive-rgb), 0.15);
    border-color: var(--color-interactive-hover);
}

.template-selector__btn svg {
    width: 16px;
    height: 16px;
    stroke: var(--color-interactive);
}

.template-selector__btn .dropdown-icon {
    font-size: var(--fs-small);
    transition: transform 0.15s ease;
}

.template-selector.active .template-selector__btn .dropdown-icon {
    transform: rotate(180deg);
}

.template-selector__dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background: var(--neutral-100);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-secondary);
    list-style: none;
    min-width: 280px;
    padding: var(--space-2);
    z-index: 200;
}

.template-selector.active .template-selector__dropdown {
    display: block;
    animation: tplDropIn 0.2s ease;
}

@keyframes tplDropIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.template-selector__dropdown li {
    margin: 0;
}

.template-selector__dropdown a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    text-decoration: none;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: background-color 0.15s ease;
}

.template-selector__dropdown a:hover {
    background: var(--color-bg-subtle);
}

.template-selector__dropdown a.active {
    background: var(--color-interactive-tint);
    color: var(--color-interactive);
}

.template-selector__dropdown a svg {
    width: 18px;
    height: 18px;
    stroke: var(--color-interactive);
    opacity: 0.7;
    flex-shrink: 0;
}

.template-selector__dropdown a.active svg {
    opacity: 1;
}

.template-selector__dropdown a div {
    display: flex;
    flex-direction: column;
}

.template-selector__dropdown a strong {
    font-family: var(--font-family-sans);
    font-size: var(--fs-body-subtle);
    font-weight: var(--font-weight-semibold);
}

.template-selector__dropdown a small {
    font-size: var(--fs-small);
    color: var(--color-text-subtle);
    margin-top: 2px;
}

.template-selector__dropdown a.active small {
    color: var(--color-interactive-hover);
}

/* Responsive */
@media (max-width: 1200px) {
    .header-container {
        padding: var(--space-3) var(--space-4);
        gap: var(--space-4);
    }

    .nav-list {
        gap: var(--space-4);
    }

    .header-right {
        gap: var(--space-4);
    }
}

@media (max-width: 992px) {
    .header-container {
        flex-wrap: wrap;
    }

    .header-nav {
        order: 3;
        flex-basis: 100%;
    }

    .nav-list {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-list {
        flex-direction: column;
        gap: var(--space-3);
        align-items: center;
    }

    .header-right {
        flex-direction: column;
        gap: var(--space-3);
    }

    .logo-img {
        height: 30px;
    }
}