/* Variables CSS modernisées */
:root {
    --nav-bg: rgba(31, 41, 55, 0.98);
    --nav-bg-hover: rgba(59, 130, 246, 0.15);
    --nav-bg-mobile: rgb(57, 80, 112);
    --nav-accent: #3b82f6;
    --nav-accent-hover: #2563eb;
    --nav-text: rgba(255, 255, 255, 0.95);
    --nav-text-hover: white;
    --nav-text-secondary: rgba(224, 224, 224, 0.9);
    --dropdown-bg: rgba(31, 41, 55, 0.98);
    --dropdown-bg-hover: rgba(59, 130, 246, 0.15);
    --dropdown-bg-mobile: rgb(45, 55, 72);
    --nav-border: rgba(255, 255, 255, 0.1);
    --nav-border-hover: rgba(255, 255, 255, 0.2);
    --nav-border-focus: rgba(59, 130, 246, 0.5);
    --nav-border-light: rgba(255, 255, 255, 0.1);
    --nav-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --nav-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Styles pour la barre de navigation */
.navbar {
    background-color: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    position: relative;
    z-index: 100;
    min-height: 60px;
    box-shadow: var(--nav-shadow);
    border-bottom: 1px solid var(--nav-border);
}

/* Ligne d'accent décorative en bas */
.navbar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--nav-accent) 20%, var(--nav-accent) 80%, transparent 100%);
    opacity: 0.6;
}

/* Motif décoratif subtil */
.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.nav-content {
    position: relative;
    z-index: 1;
}

.nav-toggle {
    display: none; /* Masqué par défaut (desktop) */
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--nav-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    min-height: 48px;
    transition: all 0.3s ease;
}

.nav-toggle:hover {
    color: var(--nav-accent);
    transform: scale(1.1);
}

.nav-content {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
    width: 100%;
    min-height: 100%;
}

.nav-logo {
    justify-self: start;
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-self: center;
    position: relative;
    padding: 0 1rem;
}

/* Points décoratifs subtils (optionnel) */
.nav-links::before,
.nav-links::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--nav-accent);
    border-radius: 50%;
    opacity: 0.3;
    top: 50%;
    transform: translateY(-50%);
}

.nav-links::before {
    left: 0;
}

.nav-links::after {
    right: 0;
}

.nav-logo .logo-link {
    color: var(--nav-text);
    text-decoration: none;
    font-family: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.05em;
    position: relative;
    line-height: 1.2;
}

.nav-logo .logo-main {
    font-size: 1.3rem;
}

.nav-logo .logo-sub {
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: -0.1rem;
    opacity: 0.9;
}

/* Accent coloré pour "Gligz" */
.nav-logo .logo-link::before {
    content: '';
    position: absolute;
    left: -0.5rem;
    width: 3px;
    height: 60%;
    background: linear-gradient(180deg, var(--nav-accent) 0%, var(--nav-accent-hover) 100%);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-logo .logo-link:hover {
    color: var(--nav-text-hover);
    transform: scale(1.02);
    text-decoration: none;
}

.nav-logo .logo-link:hover::before {
    height: 80%;
    width: 4px;
}

.nav-links a, .dropbtn {
    color: var(--nav-text);
    text-decoration: none;
    padding: 0.5rem 1.25rem;
    border-radius: 8px;
    background: none;
    border: none;
    font-family: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
    font-size: 0.71rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Italique pour les dropdowns en desktop */
.nav-links .dropbtn {
    font-style: italic;
}

/* Underline animé pour les liens */
.nav-links a::after, .dropbtn::after {
    content: '';
    position: absolute;
    bottom: 0.25rem;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: var(--nav-accent);
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover::after, .dropbtn:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-links a:hover, .dropbtn:hover {
    background: var(--nav-bg-hover);
    color: var(--nav-text-hover);
    transform: translateY(-1px);
}

/* Icône flèche pour les boutons dropdown (masquée en desktop) */
.dropbtn::after {
    content: '';
    margin-left: 0;
    font-size: 0.7em;
    opacity: 0.8;
    transition: transform 0.3s ease;
    display: none;
}

.dropdown.active .dropbtn::after {
    transform: rotate(90deg);
}

.dropdown {
    position: relative;
    padding: 0.5rem 1rem;
    width: 100%;
}

.dropdown-content {
    display: none;
    position: absolute;
    background: var(--dropdown-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow-y: auto;
    box-shadow: var(--nav-shadow-lg);
    border: 1px solid var(--nav-border);
    border-radius: 12px;
    margin-top: 0.5rem;
    padding: 0.5rem 0;
    z-index: 1000;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    min-width: 200px;
}

.dropdown.active .dropdown-content {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

/* Fallback pour les navigateurs sans JS (hover uniquement) */
@media (hover: hover) {
    .dropdown:hover .dropdown-content {
        display: block;
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }
}

.dropdown-content a {
    color: var(--nav-text-secondary);
    padding: 0.75rem 1.5rem;
    font-style: italic;
    font-size: 0.56rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.dropdown-content a:hover {
    background: var(--dropdown-bg-hover);
    border-left-color: var(--nav-accent);
    padding-left: 1.75rem;
    color: var(--nav-text-hover);
}

/* Sélecteur de langue */
.lang-selector {
    justify-self: end;
    padding-right: 1rem;
    display: flex;
    align-items: center;
    height: 100%;
}

.lang-dropdown {
    position: relative;
    display: inline-block;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--nav-border);
    border-radius: 8px;
    color: var(--nav-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-btn:hover {
    background: var(--nav-bg-hover);
    border-color: var(--nav-accent);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.lang-btn:focus {
    outline: none;
    border-color: var(--nav-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.lang-flag {
    width: 24px;
    height: 18px;
    object-fit: cover;
    border-radius: 2px;
    border: 1px solid var(--nav-border-light);
}

.lang-code {
    font-size: 0.9rem;
    font-weight: 500;
}

.lang-dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 0.5rem);
    background: var(--dropdown-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    min-width: 150px;
    box-shadow: var(--nav-shadow-lg);
    border: 1px solid var(--nav-border);
    border-radius: 12px;
    z-index: 1000;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.lang-dropdown.active .lang-dropdown-content {
    display: block;
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

/* Fallback pour les navigateurs sans JS (hover uniquement) */
@media (hover: hover) {
    .lang-dropdown:hover .lang-dropdown-content {
        display: block;
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--nav-text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.lang-option:hover {
    background: var(--dropdown-bg-hover);
    color: var(--nav-text-hover);
    text-decoration: none;
    padding-left: 1.25rem;
}

.lang-option .lang-flag {
    width: 20px;
    height: 15px;
}

/* Empêcher le scroll du body quand le menu mobile est ouvert */
@media (max-width: 768px) {
    body.menu-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }
}

/* Styles pour mobile */
@media (max-width: 768px) {
    .navbar {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .nav-content {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        align-items: stretch;
        min-height: 100%;
    }

    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 100%;
    }

    .nav-logo {
        grid-column: 1;
        grid-row: 1;
        display: flex;
        align-items: center;
        height: 100%;
    }

    .nav-logo .logo-link {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        height: 100%;
    }

    .lang-selector {
        grid-column: 2;
        grid-row: 1;
        justify-self: end;
        display: flex;
        align-items: center;
        height: 100%;
    }

    .lang-dropdown {
        display: flex;
        align-items: center;
        height: 100%;
    }

    .nav-links {
        grid-column: 1 / -1;
        grid-row: 2;
        display: none;
        flex-direction: column;
        background-color: var(--nav-bg-mobile);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        position: fixed;
        top: 4rem;
        left: 0;
        right: auto;
        width: 50%;
        min-width: 200px;
        max-width: 50%;
        max-height: calc(100vh - 4rem);
        padding: 0;
        align-items: stretch;
        z-index: 150;
        border-right: 1px solid var(--nav-border);
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
        overflow-y: auto;
        animation: slideInLeft 0.3s ease-out;
    }

    /* Bannière à damier en haut du menu mobile */
    .mobile-menu-banner {
        width: 100%;
        height: 20px;
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        border-bottom: 2px solid var(--nav-border);
        flex-shrink: 0;
    }

    @keyframes slideInLeft {
        from {
            transform: translateX(-100%);
            opacity: 0;
        }
        to {
            transform: translateX(0);
            opacity: 1;
        }
    }

    .nav-links.show {
        display: flex;
    }

    /* Styles des menus en mobile - Entrées directes (sans sous-menu) */
    .nav-links > a {
        font-family: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
        font-size: 0.71rem;
        padding: 0.5rem 1.5rem;
        text-align: center;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 24px;
        color: var(--nav-text);
        text-decoration: none;
        border: none;
        background-color: rgba(59, 130, 246, 0.1);
        cursor: pointer;
        transition: all 0.2s ease;
        margin: 0.125rem 0.5rem;
        border-radius: 8px;
    }

    .nav-links > a:hover {
        background-color: rgba(59, 130, 246, 0.2);
        color: var(--nav-text-hover);
        transform: scale(1.02);
    }

    .nav-links > a:active {
        transform: scale(0.98);
    }

    /* Styles des menus en mobile - Entrées avec sous-menu (dropdowns) */
    .nav-links .dropbtn {
        font-family: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
        font-size: 0.71rem;
        font-style: italic;
        padding: 0.5rem 1.5rem;
        text-align: center;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 24px;
        color: var(--nav-text);
        text-decoration: none;
        border: none;
        background-color: rgba(139, 92, 246, 0.1);
        cursor: pointer;
        transition: all 0.2s ease;
        margin: 0;
        border-radius: 8px;
        width: 100%;
    }

    .nav-links .dropbtn:hover {
        background-color: rgba(139, 92, 246, 0.2);
        color: var(--nav-text-hover);
        transform: scale(1.02);
    }

    .nav-links .dropbtn:active {
        transform: scale(0.98);
    }

    /* Surcharger complètement les styles généraux ::after pour le mobile */
    .nav-links .dropbtn::after {
        content: '▼' !important;
        position: absolute !important;
        right: 1.5rem !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        font-size: 0.75rem !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        width: auto !important;
        height: auto !important;
        background: none !important;
        border-radius: 0 !important;
        bottom: auto !important;
        left: auto !important;
        margin-left: 0 !important;
        opacity: 0.7;
        transition: all 0.3s ease;
    }

    .nav-links .dropbtn:hover::after {
        transform: translateY(-50%) !important;
        opacity: 1;
    }

    .nav-links .dropdown.active .dropbtn::after {
        transform: translateY(-50%) rotate(180deg) !important;
        opacity: 1;
    }

    /* Ligne séparatrice élégante entre les entrées directes en mobile */
    .nav-links > a:not(:last-of-type)::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 60%;
        height: 1px;
        background: linear-gradient(90deg, transparent 0%, var(--nav-border-light) 20%, var(--nav-border-light) 80%, transparent 100%);
        pointer-events: none;
    }

    /* Séparateur entre les entrées directes et les menus secondaires */
    .nav-links > .dropdown:first-of-type {
        margin-top: 0.75rem;
        position: relative;
    }

    .nav-links > .dropdown:first-of-type::before {
        content: '';
        position: absolute;
        top: -0.5rem;
        left: 1.5rem;
        right: 1.5rem;
        height: 1px;
        background: linear-gradient(90deg, transparent 0%, var(--nav-border) 20%, var(--nav-border) 80%, transparent 100%);
        pointer-events: none;
    }

    /* Séparateur entre les menus dropdown en mobile */
    .nav-links > .dropdown:not(:last-of-type)::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 60%;
        height: 1px;
        background: linear-gradient(90deg, transparent 0%, var(--nav-border-light) 20%, var(--nav-border-light) 80%, transparent 100%);
        pointer-events: none;
    }

    /* En mobile, les dropdowns s'affichent en dessous de l'entrée sélectionnée */
    .nav-links > .dropdown {
        position: relative;
        width: auto;
        display: flex;
        flex-direction: column;
        margin: 0.125rem 0.5rem;
        padding: 0;
    }

    .nav-links .dropdown-content {
        position: relative;
        top: 0;
        left: 0;
        right: auto;
        width: 100%;
        min-width: 100%;
        max-width: 100%;
        background-color: rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
        max-height: none;
        height: auto;
        overflow: hidden;
        text-align: left;
        z-index: 200;
        border-left: 3px solid var(--nav-accent);
        border-top: none;
        border-bottom: none;
        border-right: none;
        border-radius: 0 8px 8px 0;
        margin: 0.5rem 0.5rem 0.5rem 1.5rem;
        padding: 0.5rem 0;
        transform: scaleY(0);
        transform-origin: top;
        opacity: 0;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links .dropdown.active .dropdown-content {
        display: block;
        opacity: 1;
        transform: scaleY(1);
    }

    /* Styles des sous-menus en mobile */
    .nav-links .dropdown-content a {
        font-size: 0.66rem;
        padding: 0.75rem 1.5rem;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 40px;
        border-left: none;
        color: var(--nav-text-secondary);
        position: relative;
        transition: all 0.2s ease;
    }

    .nav-links .dropdown-content a:hover {
        background: var(--dropdown-bg-hover);
        color: var(--nav-text-hover);
        transform: scale(1.02);
    }

    .lang-selector {
        padding-right: 0;
    }

    .lang-dropdown-content {
        right: auto;
        left: 50%;
        transform: translateX(-50%);
    }
}