/* ============================================================
   assets/css/nav.css — Navigation principale
   ============================================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 500;
    background: rgba(8,14,28,0.88);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    align-items: center;
}

.navbar__inner {
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: var(--sp-8);
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--sp-6);
}

/* ── Marque ── */
.navbar__brand {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    text-decoration: none;
    flex-shrink: 0;
}

.navbar__logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
    flex-shrink: 0;
}

.navbar__brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.navbar__brand-name {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--clr-text-heading);
}

.navbar__brand-sub {
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
    color: var(--clr-text-muted);
    text-transform: uppercase;
}

/* ── Navigation principale ── */
.navbar__nav {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
    flex: 1;
}

.nav-item {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    padding: 0.4rem var(--sp-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--clr-text-muted);
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--clr-text-heading);
    background: var(--clr-bg-card-alt);
}

.nav-link.is-active { color: var(--clr-accent); }

/* Dropdown trigger chevron */
.nav-link__caret {
    font-size: 0.6rem;
    opacity: 0.5;
    margin-left: 2px;
    transition: transform var(--transition-fast);
}
.nav-item:hover .nav-link__caret { transform: rotate(180deg); opacity: 1; }

/* ── Dropdown ── */
.nav-dropdown {
    position: absolute;
    top: calc(100% + var(--sp-2));
    left: 0;
    min-width: 200px;
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-light);
    border-radius: var(--radius-lg);
    padding: var(--sp-2);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all var(--transition-normal);
    z-index: 10;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown__item {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--clr-text-muted);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-dropdown__item:hover {
    background: var(--clr-bg-card-alt);
    color: var(--clr-text-heading);
}

.nav-dropdown__sep {
    height: 1px;
    background: var(--clr-border);
    margin: var(--sp-2) 0;
}

/* ── Actions droite ── */
.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-left: auto;
    flex-shrink: 0;
}

/* Profil connecté */
.navbar__user {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    padding: 0.3rem var(--sp-2) 0.3rem var(--sp-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 1px solid var(--clr-border);
    background: var(--clr-bg-card);
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
}
.navbar__user:hover { border-color: var(--clr-border-light); background: var(--clr-bg-card-alt); }

.navbar__user-avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}

.navbar__user-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--clr-text);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Dropdown utilisateur */
.user-dropdown {
    right: 0;
    left: auto;
    min-width: 220px;
}

.user-dropdown__header {
    padding: var(--sp-3) var(--sp-3) var(--sp-2);
    margin-bottom: var(--sp-1);
}
.user-dropdown__name {
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--clr-text-heading);
    margin-bottom: 2px;
}
.user-dropdown__grade {
    font-size: var(--text-xs);
    color: var(--clr-text-muted);
}

/* ── Burger (mobile) ── */
.navbar__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--sp-2);
    cursor: pointer;
    background: none;
    border: none;
    margin-left: auto;
}
.navbar__burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--clr-text-muted);
    border-radius: 99px;
    transition: all var(--transition-normal);
}
.navbar__burger.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar__burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.navbar__burger.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ── Mobile ── */
@media (max-width: 900px) {
    .navbar__nav { display: none; }
    .navbar__actions { display: none; }
    .navbar__burger { display: flex; }

    .navbar__nav.is-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--clr-bg-card);
        border-bottom: 1px solid var(--clr-border);
        padding: var(--sp-3) var(--sp-4);
        gap: 2px;
        box-shadow: var(--shadow-lg);
        z-index: 400;
    }

    .navbar__actions.is-open {
        display: flex;
        justify-content: center;
        padding: var(--sp-3) var(--sp-4) var(--sp-4);
        border-top: 1px solid var(--clr-border);
        background: var(--clr-bg-card);
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 400;
    }

    .nav-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--clr-bg-card-alt);
        border: none;
        padding-left: var(--sp-4);
        margin-top: 2px;
        display: none;
    }

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

@media (max-width: 480px) {
    .navbar__inner { padding-inline: var(--sp-4); }
    .navbar__brand-sub { display: none; }
}