/* =========================================================
   NAVBAR
========================================================= */
.site-nav {
    --nav-bg: rgba(20, 20, 20, 0.65);
    --nav-blur: 10px;
    --nav-border: rgba(255, 255, 255, 0.06);
    --nav-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);

    --nav-text: #ffffff;
    --nav-text-muted: rgba(255, 255, 255, 0.9);

    --nav-hover-bg: rgba(255, 255, 255, 0.08);
    --nav-active-bg: rgba(255, 255, 255, 0.12);

    /* plus doux qu'avant */
    --nav-panel-bg: rgba(44, 44, 44, 0.86);
    --dropdown-bg: rgba(50, 50, 50, 0.90);
    --dropdown-border: rgba(255, 255, 255, 0.08);
    --dropdown-shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
    --dropdown-inset: inset 0 1px 0 rgba(255, 255, 255, 0.04);

    --nav-focus: rgba(255, 255, 255, 0.35);

    position: fixed;
    inset: 0 0 auto 0;
    height: var(--nav-h);
    z-index: 1000;

    background: var(--nav-bg);
    color: var(--nav-text);

    backdrop-filter: blur(var(--nav-blur));
    -webkit-backdrop-filter: blur(var(--nav-blur));

    /* border-bottom: 1px solid var(--nav-border); */
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    box-shadow: var(--nav-shadow);

    transition:
        background 250ms ease,
        box-shadow 250ms ease,
        backdrop-filter 250ms ease;
}

.site-nav.scrolled {
    --nav-bg: rgba(20, 20, 20, 0.85);
    --nav-blur: 18px;
    --nav-border: rgba(255, 255, 255, 0.08);
    --nav-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);

    --nav-text: #ffffff;
    --nav-text-muted: rgba(255, 255, 255, 0.90);

    --nav-hover-bg: rgba(255, 255, 255, 0.08);
    --nav-active-bg: rgba(255, 255, 255, 0.12);

    --nav-panel-bg: rgba(17, 17, 17, 0.98);

    --dropdown-bg: #242424;
    --dropdown-border: rgba(255, 255, 255, 0.06);
    --dropdown-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
    --dropdown-inset: inset 0 1px 0 rgba(255, 255, 255, 0.03);

    --nav-focus: rgba(255, 255, 255, 0.35);
}

.site-nav .nav-container {
    max-width: var(--wrap);
    height: 100%;
    margin: 0 auto;
    padding: 0 12px;

    display: flex;
    align-items: center;
    gap: 10px;
}

.site-nav .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--nav-text);
    text-decoration: none;
    white-space: nowrap;
    flex: 0 0 auto;
}

.site-nav .brand img {
    display: block;
    width: 30px;
    height: auto;
}

/* Bouton burger */
.site-nav .nav-toggle {
    margin-left: auto;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    background: transparent;
    color: var(--nav-text);
    cursor: pointer;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

/* Panel mobile */
.site-nav .nav-panel {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;

    background: var(--nav-panel-bg);
    border-bottom: 1px solid var(--nav-border);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);

    transition:
        opacity 180ms ease,
        visibility 180ms ease,
        transform 180ms ease;
}

.site-nav .nav-panel.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.site-nav .nav-inner {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 10px 12px 12px;

    display: grid;
    gap: 10px;
}

.site-nav .nav-list {
    list-style: none;
    margin: 0;
    padding: 0;

    display: grid;
    gap: 6px;
}

.site-nav .nav-item {
    list-style: none;
}

/* Liens / triggers */
.site-nav .nav-link,
.site-nav .drop-trigger {
    width: 100%;
    min-height: 42px;
    padding: 10px 12px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--nav-text-muted);
    cursor: pointer;
    font: inherit;
    line-height: 1.2;
    text-align: left;
    text-decoration: none;

    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.site-nav .nav-link:hover,
.site-nav .drop-trigger:hover {
    color: var(--nav-text);
    background: var(--nav-hover-bg);
}

.site-nav .nav-link.active,
.site-nav .drop-trigger.active {
    color: var(--nav-text);
    background: var(--nav-active-bg);
    font-weight: 600;
}

/* Focus clavier */
.site-nav .nav-link:focus-visible,
.site-nav .drop-trigger:focus-visible,
.site-nav .nav-btn:focus-visible,
.site-nav .nav-toggle:focus-visible,
.site-nav .nav-toggle-theme:focus-visible,
.site-nav .dropdown-item:focus-visible {
    outline: 2px solid var(--nav-focus);
    outline-offset: 2px;
}

/* Chevron */
.site-nav .nav-chevron {
    margin-left: 6px;
    font-size: 0.9em;
    opacity: 0.85;
    transition: transform 160ms ease;
}

.site-nav .dropdown.is-open>.drop-trigger .nav-chevron {
    transform: rotate(180deg);
}

/* Actions à droite */
.site-nav .nav-actions {
    display: grid;
    gap: 8px;
}

.site-nav .nav-btn {
    min-height: 42px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--nav-text);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    white-space: nowrap;

    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.site-nav .nav-btn:hover {
    background: rgba(255, 255, 255, 0.16);
}

.site-nav .nav-btn.active {
    outline: 2px solid rgba(255, 255, 255, 0.25);
}

.site-nav .nav-toggle-theme {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.1);
    color: var(--nav-text);
    cursor: pointer;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

.site-nav .nav-toggle-theme:hover {
    background: rgba(255, 255, 255, 0.16);
}

/* Dropdown */
.site-nav .dropdown {
    position: relative;
}

.site-nav .dropdown-menu {
    display: none;
    margin: 6px 0 0;
    padding: 6px;
    border-radius: 14px;

    background: var(--dropdown-bg);
    border: 1px solid var(--dropdown-border);
    box-shadow: var(--dropdown-shadow), var(--dropdown-inset);

    transform: translateY(4px);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.site-nav .dropdown.is-open .dropdown-menu {
    display: block;
}

.site-nav .dropdown-item {
    display: block;
    padding: 10px;
    border-radius: 10px;
    color: var(--nav-text-muted);
    text-decoration: none;
}

.site-nav .dropdown-item:hover {
    color: var(--nav-text);
    background: var(--nav-hover-bg);
}

.site-nav .dropdown-item.active {
    color: var(--nav-text);
    background: var(--nav-active-bg);
    font-weight: 600;
}

.site-nav .dropdown-divider {
    height: 1px;
    margin: 6px 4px;
    background: rgba(255, 255, 255, 0.12);
}

/* Desktop */
@media (min-width: 992px) {
    .site-nav .nav-toggle {
        display: none;
    }

    .site-nav .dropdown:hover>.drop-trigger .nav-chevron {
        transform: rotate(180deg);
    }

    .site-nav .nav-panel {
        position: static;
        background: transparent;
        border: 0;

        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;

        flex: 1 1 auto;
        min-width: 0;
    }

    .site-nav .nav-inner {
        width: 100%;
        padding: 0;

        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }

    .site-nav .nav-list {
        display: flex;
        align-items: center;
        gap: 6px;
        flex-wrap: nowrap;
    }

    .site-nav .nav-link,
    .site-nav .drop-trigger {
        width: auto;
    }

    .site-nav .nav-actions {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 0 0 auto;
    }

    .site-nav .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 220px;
        margin-top: 0;
        z-index: 1100;
        transform: none;
    }

    .site-nav .dropdown::after {
        content: "";
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        height: 12px;
    }

    .site-nav .dropdown:hover .dropdown-menu {
        display: block;
    }
}

/* Accessibilité */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Flash éventuel */
.flash-popupOld {
    position: fixed;
    top: 50%;
    left: 50%;
    background-color: #198754;
    color: white;
    padding: 12px 18px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transform: translateY(20px);
    animation: slideIn 0.5s forwards;
    z-index: 9999;
}

.flash-popup {
    position: fixed;
    top: calc(var(--nav-h, 56px) + 16px);
    right: 16px;
    z-index: 9999;
    max-width: 320px;
    padding: 22px 26px;
    border-radius: 10px;
    color: #fff;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
    font-size: 0.95rem;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.flash-popup.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.flash-popup.flash-success {
    background: #198754;
}

.flash-popup.flash-error {
    background: #dc3545;
}

.flash-popup.flash-info {
    background: #0d6efd;
}

.flash-warning {
    background: #ffc107;
    color: #000;
}