/* =====================================================================
   Fred.net - Mise en page tableau de bord (sidebar responsive + topbar)
   ===================================================================== */

body.fn-app { background: var(--fn-gray-100); }

/* --- Sidebar ------------------------------------------------------------ */
.fn-sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--fn-sidebar-width);
    background: linear-gradient(180deg, var(--fn-blue-900), var(--fn-blue-800));
    color: #fff;
    z-index: 1030;
    display: flex;
    flex-direction: column;
    transition: transform .25s ease, width .25s ease;
}
.fn-sidebar .fn-brand { color: #fff; padding: 1.35rem 1.25rem; }
.fn-sidebar .fn-brand small { color: rgba(255,255,255,.6); }
.fn-sidebar .fn-brand .fn-logo { background: rgba(255,255,255,.15); box-shadow: none; }

.fn-nav { flex: 1; overflow-y: auto; padding: .5rem .75rem; }
.fn-nav .fn-nav-section {
    text-transform: uppercase;
    font-size: .68rem;
    letter-spacing: 1px;
    color: rgba(255,255,255,.45);
    margin: 1.1rem .75rem .4rem;
    font-weight: 700;
}
.fn-nav-link {
    display: flex;
    align-items: center;
    gap: .8rem;
    padding: .68rem .9rem;
    border-radius: 10px;
    color: rgba(255,255,255,.82);
    font-weight: 500;
    font-size: .92rem;
    margin-bottom: .15rem;
    transition: background .15s ease, color .15s ease;
}
.fn-nav-link i { width: 20px; text-align: center; font-size: 1rem; }
.fn-nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.fn-nav-link.active { background: rgba(255,255,255,.16); color: #fff; box-shadow: inset 3px 0 0 #fff; }
.fn-nav-link .badge { margin-left: auto; }

.fn-sidebar-footer {
    padding: 1rem 1.25rem 1.35rem;
    border-top: 1px solid rgba(255,255,255,.12);
}
.fn-user-mini { display: flex; align-items: center; gap: .65rem; color: #fff; }
.fn-user-mini .fn-avatar {
    width: 38px; height: 38px; border-radius: 50%;
    background: rgba(255,255,255,.18);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: .85rem;
}
.fn-user-mini .fn-user-role { color: rgba(255,255,255,.6); font-size: .74rem; }

/* --- Zone de contenu principale ------------------------------------------ */
.fn-content {
    margin-left: var(--fn-sidebar-width);
    min-height: 100vh;
    transition: margin-left .25s ease;
}

.fn-topbar {
    height: var(--fn-topbar-height);
    background: #fff;
    border-bottom: 1px solid var(--fn-gray-200);
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1020;
}
.fn-sidebar-toggle {
    border: none; background: var(--fn-blue-50); color: var(--fn-blue-800);
    width: 40px; height: 40px; border-radius: 10px; font-size: 1.1rem;
    display: none;
    align-items: center; justify-content: center;
}
.fn-page-title { font-weight: 700; color: var(--fn-blue-900); margin: 0; font-size: 1.15rem; }
.fn-topbar .fn-search { max-width: 320px; }

.fn-main { padding: 1.75rem; }

/* --- Overlay mobile ------------------------------------------------------ */
.fn-sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(6, 38, 92, .45);
    z-index: 1025;
}

/* --- Cartes statistiques du tableau de bord ------------------------------ */
.fn-stat-card {
    background: #fff;
    border-radius: var(--fn-radius);
    border: 1px solid var(--fn-gray-200);
    box-shadow: var(--fn-shadow);
    padding: 1.25rem 1.4rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 100%;
}
.fn-stat-icon {
    width: 52px; height: 52px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; flex-shrink: 0;
}
.fn-stat-value { font-size: 1.55rem; font-weight: 800; color: var(--fn-gray-900); line-height: 1.2; }
.fn-stat-label { color: var(--fn-gray-600); font-size: .82rem; font-weight: 600; }
.fn-stat-trend { font-size: .76rem; font-weight: 700; }

.fn-chart-card { background: #fff; border-radius: var(--fn-radius); border: 1px solid var(--fn-gray-200); box-shadow: var(--fn-shadow); padding: 1.5rem; }
.fn-chart-card canvas { max-height: 300px; }

/* --- Responsive ----------------------------------------------------------- */
@media (max-width: 991.98px) {
    .fn-sidebar { transform: translateX(-100%); width: 280px; }
    .fn-sidebar.show { transform: translateX(0); box-shadow: var(--fn-shadow-lg); }
    .fn-content { margin-left: 0; }
    .fn-sidebar-toggle { display: inline-flex; }
    .fn-sidebar-overlay.show { display: block; }
}

@media (max-width: 575.98px) {
    .fn-main { padding: 1rem; }
    .fn-topbar { padding: 0 1rem; }
}

/* --- Collapsed desktop sidebar (icones seules) ---------------------------- */
.fn-sidebar.fn-collapsed { width: var(--fn-sidebar-collapsed); }
.fn-sidebar.fn-collapsed ~ .fn-content,
.fn-content.fn-collapsed { margin-left: var(--fn-sidebar-collapsed); }
.fn-sidebar.fn-collapsed .fn-brand span.fn-brand-text,
.fn-sidebar.fn-collapsed .fn-nav-section,
.fn-sidebar.fn-collapsed .fn-nav-link span,
.fn-sidebar.fn-collapsed .fn-user-mini .fn-user-text { display: none; }
.fn-sidebar.fn-collapsed .fn-nav-link { justify-content: center; }