/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
    flex: 0 0 260px;
    width: 260px;
    min-height: 100vh;
    background: linear-gradient(180deg, var(--sidebar-bg) 0%, #0A3D7A 100%);
    padding: 0;
    transition: width 0.3s;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 12px rgba(0,0,0,0.10);
}

.sidebar-header {
    padding: 24px 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h4 {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    letter-spacing: 0.02em;
}

.sidebar ul {
    list-style: none;
    padding: 12px 0;
    margin: 0;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.sidebar ul::-webkit-scrollbar {
    width: 4px;
}
.sidebar ul::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar ul::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
}
.sidebar ul::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.3);
}

.sidebar ul li { margin: 2px 8px; }

.sidebar ul li a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    display: flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 400;
    transition: all 0.2s;
    gap: 10px;
}

.sidebar ul li a:hover {
    background: var(--sidebar-hover);
    color: #fff;
}

.sidebar ul li a.active-link {
    background: rgba(255,255,255,0.15);
    color: #fff;
    font-weight: 500;
}

.sidebar .nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-section-label {
    color: rgba(255,255,255,0.45);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 16px 24px 6px;
}

/* ── Contenuto principale ────────────────────────────── */
.content {
    flex: 1 1 0%;
    width: 100%;
    min-width: 0;
    padding: 28px 32px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* ── Footer sidebar ──────────────────────────────────── */
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto;
}

.sidebar-footer a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.2s;
}

.sidebar-footer a:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.sidebar-logout {
    color: rgba(255,255,255,0.85) !important;
    background: rgba(255,255,255,0.08);
    margin-top: 4px;
}
.sidebar-logout:hover {
    background: rgba(220,53,69,0.3) !important;
    color: #fff !important;
}

/* ── Overlay mobile ─────────────────────────────────── */
.overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}
.overlay.active { display: block; }

/* ── Responsive mobile ──────────────────────────────── */
@media (max-width: 1199px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: -280px;
        z-index: 999;
        width: 280px;
        height: 100vh;
        transition: left 0.3s ease;
    }
    .sidebar.active { left: 0; }
    .content { padding: 16px; }
}

@media (min-width: 1200px) {
    .sidebar { position: sticky; top: 0; height: 100vh; }
}