/* Back to top button */
.back-to-top.link-fr {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0078d4, #00ff88);
    color: #fff;
    font-size: 24px;
    text-decoration: none;
    box-shadow: 0 4px 18px rgba(0, 120, 212, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.back-to-top.link-en {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 900;
    display: none;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0078d4, #00ff88);
    color: #fff;
    font-size: 24px;
    text-decoration: none;
    box-shadow: 0 4px 18px rgba(0, 120, 212, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.back-to-top:hover {
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 8px 28px rgba(0, 255, 136, 0.4);
}

#en:target ~ .back-to-top.link-en {
    display: flex !important;
}

#en:target ~ .back-to-top.link-fr {
    display: none !important;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 18px;
        right: 18px;
        width: 42px;
        height: 42px;
        font-size: 20px;
    }
}

/* ===== LANGUAGE PERSISTENCE (CSS-ONLY via :target) ===== */
.lang-anchor {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    overflow: hidden;
    pointer-events: none;
}

/* Default: French visible, English hidden */
.link-en {
    display: none !important;
}

/* Language switcher anchor styling */
.language-switcher .lang-btn {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    padding: 6px 14px;
    border-radius: 8px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s ease, color 0.2s ease;
}

/* Default: FR is active */
.language-switcher .lang-btn[href="#fr"] {
    background: rgba(0, 255, 136, 0.2);
    color: #00ff88;
    border: 1px solid rgba(0, 255, 136, 0.4);
}

.language-switcher .lang-btn[href="#en"] {
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
    border: 1px solid transparent;
}

/* When EN is targeted: swap active styles */
#en:target ~ nav .language-switcher .lang-btn[href="#en"] {
    background: rgba(0, 255, 136, 0.2) !important;
    color: #00ff88 !important;
    border: 1px solid rgba(0, 255, 136, 0.4) !important;
}

#en:target ~ nav .language-switcher .lang-btn[href="#fr"] {
    background: transparent !important;
    color: rgba(255, 255, 255, 0.6) !important;
    border: 1px solid transparent !important;
}

.language-switcher .lang-btn:hover {
    color: #ffffff;
    background: rgba(0, 120, 212, 0.25);
}

/* When #en is targeted: show English, hide French everywhere */
#en:target ~ * .link-en,
#en:target ~ * .lang-en {
    display: inline !important;
}

#en:target ~ * .link-fr,
#en:target ~ * .lang-fr {
    display: none !important;
}

/* Ensure nav link-en shows as block for proper layout */
#en:target ~ nav .link-en {
    display: block !important;
}

/* Ensure CTA buttons show as inline-block */
#en:target ~ * .cta-button.link-en {
    display: inline-block !important;
}

/* Ensure back-to-top shows as flex */
#en:target ~ .back-to-top.link-en {
    display: flex !important;
}

#en:target ~ .back-to-top.link-fr {
    display: none !important;
}

/* Smooth scroll for anchor navigation */
html {
    scroll-behavior: smooth;
}

/* Left dropdown navigation override for desktop and mobile */
.main-nav {
    justify-content: flex-start !important;
    gap: 16px !important;
}

.main-nav .nav-brand {
    order: 2;
}

.main-nav .language-switcher {
    order: 3;
    margin-left: auto !important;
}

.main-nav .nav-toggle {
    display: flex !important;
    order: 1;
    position: relative;
    z-index: 1301;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    padding: 8px;
    border-radius: 12px;
    background: rgba(0, 120, 212, 0.18);
    border: 1px solid rgba(0, 255, 136, 0.28);
    cursor: pointer;
}

.main-nav .nav-toggle span {
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: #ffffff;
    transition: var(--transition);
}

.main-nav .nav-center {
    display: flex !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: min(82vw, 320px) !important;
    height: 100vh !important;
    padding: 86px 22px 24px !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 18px !important;
    background: linear-gradient(180deg, rgba(10, 20, 40, 0.99) 0%, rgba(0, 77, 142, 0.97) 100%) !important;
    border-right: 2px solid rgba(0, 255, 136, 0.25) !important;
    box-shadow: 12px 0 40px rgba(10, 20, 40, 0.35) !important;
    transform: translateX(-108%) !important;
    transition: transform 0.28s ease !important;
    z-index: 1300 !important;
    overflow-y: auto;
    overflow-x: hidden;
}

.main-nav .nav-links {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    width: 100%;
    gap: 14px !important;
}

.main-nav .nav-links li {
    width: 100%;
}

.main-nav .nav-link {
    display: block;
    width: 100%;
    padding: 10px 0 !important;
    font-size: 16px !important;
    color: #ffffff !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.main-nav .nav-link::after {
    bottom: 4px;
}

#nav-toggle-menu:checked ~ .main-nav .nav-center {
    transform: translateX(0) !important;
}

#nav-toggle-menu:checked ~ .main-nav .nav-toggle span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px) !important;
}

#nav-toggle-menu:checked ~ .main-nav .nav-toggle span:nth-child(2) {
    opacity: 0 !important;
}

#nav-toggle-menu:checked ~ .main-nav .nav-toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px) !important;
}

@media (max-width: 768px) {
    .main-nav {
        padding: 12px 4% !important;
        flex-wrap: nowrap !important;
        gap: 10px !important;
    }

    .main-nav .logo {
        font-size: 20px !important;
        letter-spacing: 2px !important;
    }

    .main-nav .nav-brand {
        order: 2;
        flex: 1 1 auto;
    }

    /* Hamburger visible on mobile */
    .main-nav .nav-toggle {
        display: flex !important;
        order: 1;
        width: 40px;
        height: 40px;
        padding: 6px;
        border-radius: 10px;
    }

    .main-nav .nav-toggle span {
        width: 24px;
        height: 2.5px;
    }

    /* Sliding panel on mobile */
    .main-nav .nav-center {
        display: flex !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: min(85vw, 300px) !important;
        height: 100vh !important;
        padding: 80px 18px 24px !important;
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 14px !important;
        background: linear-gradient(180deg, rgba(10, 20, 40, 0.99) 0%, rgba(0, 77, 142, 0.97) 100%) !important;
        border-right: 2px solid rgba(0, 255, 136, 0.25) !important;
        box-shadow: 12px 0 40px rgba(10, 20, 40, 0.35) !important;
        transform: translateX(-108%) !important;
        transition: transform 0.28s ease !important;
        z-index: 1300 !important;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .main-nav .nav-links {
        display: flex !important;
        position: static !important;
        right: auto !important;
        top: auto !important;
        height: auto !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 10px !important;
        width: 100% !important;
        background: transparent !important;
        box-shadow: none !important;
        padding: 0 !important;
    }

    .main-nav .nav-links li {
        display: block !important;
        width: 100%;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .main-nav .language-switcher {
        order: 3;
        padding: 6px !important;
        gap: 4px !important;
    }

    .main-nav .lang-btn {
        padding: 6px 10px !important;
        font-size: 12px !important;
    }

    .main-nav .nav-link.link-fr {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 100%;
        padding: 10px 0 !important;
        font-size: 15px !important;
        color: #ffffff !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
        border-radius: 0;
        background: transparent;
        white-space: normal;
    }

    .main-nav .nav-link.link-en {
        display: none !important;
        width: 100%;
        padding: 10px 0 !important;
        font-size: 15px !important;
        color: #ffffff !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
        border-radius: 0;
        background: transparent;
        white-space: normal;
    }

    /* When EN is active on mobile */
    #en:target ~ .main-nav .nav-link.link-en {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    #en:target ~ .main-nav .nav-link.link-fr {
        display: none !important;
    }

    .main-nav .nav-link::after {
        bottom: 4px;
    }

    /* Slide in when checked */
    #nav-toggle-menu:checked ~ .main-nav .nav-center {
        transform: translateX(0) !important;
    }

    #nav-toggle-menu:checked ~ .main-nav .nav-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px) !important;
    }

    #nav-toggle-menu:checked ~ .main-nav .nav-toggle span:nth-child(2) {
        opacity: 0 !important;
    }

    #nav-toggle-menu:checked ~ .main-nav .nav-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px) !important;
    }
}