/**
 * VIA OPERA - Header Styles
 * Mobile First - Menu burger responsive
 */

/* ============================================
   HEADER - MOBILE FIRST
   ============================================ */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-white-dark);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: visible;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    min-height: 60px;
}

/* ============================================
   LOGO
   ============================================ */

.logo {
    flex-shrink: 0;
    max-width: 120px;
}

.logo-text {
    font-family: var(--font-stylistic-primary);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-black);
    line-height: 1.2;
    display: block;
    white-space: normal;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.8), 0 0 10px rgba(255, 255, 255, 0.5);
}

.logo-text::first-letter {
    font-weight: 600;   
    color: var(--color-gold);
}

.logo a {
    text-decoration: none;
}

.logo a:hover .logo-text {
    color: var(--color-gold);
}

/* ============================================
   NAVIGATION - MOBILE (Cachée par défaut)
   ============================================ */

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1001;
    overflow-y: auto;
    overflow-x: hidden;
    padding-top: 60px;
    will-change: transform;
}

.main-nav.active {
    transform: translateX(0);
    visibility: visible;
}

.nav-list {
    list-style: none;
    padding: var(--spacing-md);
    margin: 0;
    width: 100%;
    display: block;
}

.nav-list li {
    margin-bottom: var(--spacing-sm);
}

.nav-link {
    display: block;
    padding: var(--spacing-sm);
    color: var(--color-black);
    text-decoration: none;
    font-size: 1.5rem;
    border-bottom: 1px solid var(--color-white-dark);
    transition: color var(--transition-fast), border-bottom-color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-gold);
    border-bottom-color: var(--color-gold);
}

/* ============================================
   HEADER ACTIONS (Language Switcher)
   ============================================ */

.header-actions {
    flex-shrink: 0;
    margin-right: var(--spacing-sm);
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
}

.lang-link {
    color: var(--color-black);
    text-decoration: none;
    padding: var(--spacing-xs);
}

.lang-link:hover,
.lang-link.active {
    color: var(--color-gold);
}

.lang-separator {
    color: var(--color-grey);
}

/* ============================================
   BURGER BUTTON
   ============================================ */

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--color-black);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* ============================================
   TABLETTE (≥ 768px)
   ============================================ */

@media (min-width: 768px) {
    .header-content {
        min-height: 80px;
        padding: var(--spacing-md);
    }

    .main-nav {
        top: 80px;
    }

    .logo {
        max-width: 200px;
    }

    .logo-text {
        font-size: 1.3rem;
    }

    /* Augmenter la taille des liens de navigation en tablette */
    .nav-link {
        font-size: 1.5rem;
    }

    /* Augmenter la taille du lang switcher en tablette */
    .language-switcher {
        font-size: 1rem;
    }
}

/* ============================================
   DESKTOP (≥ 1024px)
   ============================================ */

@media (min-width: 1050px) {
    .header-content {
        min-height: 90px;
        padding: var(--spacing-md) 5%;
        gap: var(--spacing-xxxl);
    }

    .logo {
        max-width: none;
        margin-right: 0;
    }

    .logo-text {
        font-size: 1.8rem;
    }

    /* Cacher le burger sur desktop */
    .mobile-menu-toggle {
        display: none;
    }

    /* Afficher la navigation en ligne */
    .main-nav {
        position: static;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        width: auto;
        height: auto;
        transform: translateX(0);
        background-color: transparent;
        overflow-y: visible;
        overflow-x: visible;
        padding-top: 0;
        flex: 1;
        display: flex;
        visibility: visible;
        margin: 0 auto;
        justify-content: space-around;
    }

    .header-actions {
        margin-left: 0;
    }

    .nav-list {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
        padding: 0;
    }

    .nav-list li {
        margin-bottom: 0;
    }

    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        border-bottom: 2px solid transparent;
        font-size: 1.5rem;
        transition: color var(--transition-fast), border-bottom-color var(--transition-fast);
        position: relative;
    }

    .nav-link:hover {
        color: var(--color-gold);
        border-bottom-color: var(--color-gold);
    }

    .nav-link:hover::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
        box-shadow: 0 2px 6px rgba(212, 175, 55, 0.4);
    }

    .header-actions {
        margin-right: 0;
    }

    /* Augmenter la taille du lang switcher en desktop */
    .language-switcher {
        font-size: 1.1rem;
    }
}