form {
    margin-bottom: 0;
}

.navbar-brand img.brand-img {
    border-radius: 12px;
}

/* ═══════════════════════════════════════════
   SIDEBAR DESIGN IMPROVEMENTS
   ═══════════════════════════════════════════ */

/* ── Sidebar glass-morphism overlay ── */
.navbar-vertical[data-bs-theme="dark"] {
    background: linear-gradient(180deg, #0f1421 0%, #161c2e 100%) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.04);
}

/* ── Logo area ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-brand {
    padding: 1rem 0.75rem !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 0.25rem;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-brand img.brand-img {
    border-radius: 10px;
    transition: transform 0.2s ease;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-brand img.brand-img:hover {
    transform: scale(1.02);
}

/* ── Section headers ── */
.navbar-vertical[data-bs-theme="dark"] .nav-item.mt-2.mb-1.px-3 {
    padding-top: 1rem !important;
    padding-bottom: 0.25rem !important;
}

.navbar-vertical[data-bs-theme="dark"] .nav-item.mt-2.mb-1.px-3 span {
    position: relative;
    display: block;
    padding-bottom: 0.35rem;
}

.navbar-vertical[data-bs-theme="dark"] .nav-item.mt-2.mb-1.px-3 span::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 1.5rem;
    height: 2px;
    background: var(--tblr-primary, #206bc4);
    border-radius: 2px;
    opacity: 0.6;
}

/* ── Nav links — base ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-link {
    padding: 0.55rem 1rem !important;
    margin: 0.1rem 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

/* ── Nav links — hover ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff !important;
}

/* ── Nav link icons ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-link .nav-link-icon i {
    font-size: 1.25rem !important;
    transition: transform 0.2s ease;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-link:hover .nav-link-icon i {
    transform: translateX(2px);
}

/* ── Nav link title ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-link .nav-link-title {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* ── Active nav item ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-item.active > .nav-link {
    background: rgba(32, 107, 196, 0.15) !important;
    color: #fff !important;
    font-weight: 600;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-item.active > .nav-link::before {
    content: '';
    position: absolute;
    left: -0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--tblr-primary, #206bc4);
    border-radius: 0 3px 3px 0;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-nav .nav-item.active > .nav-link .nav-link-icon i {
    color: var(--tblr-primary, #206bc4);
}

/* ── Dropdown toggle ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-nav .dropdown-toggle::after {
    opacity: 0.5;
    transition: transform 0.25s ease;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-nav .dropdown-toggle[aria-expanded="true"]::after {
    transform: rotate(180deg);
    opacity: 0.8;
}

/* ── Dropdown menu (sub-items container) ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-collapse .dropdown-menu {
    animation: sidebar-dropdown-fade 0.2s ease;
}

@keyframes sidebar-dropdown-fade {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Dropdown items ── */
.navbar-vertical[data-bs-theme="dark"] .navbar-collapse .dropdown-menu .dropdown-item {
    padding: 0.4rem 1rem 0.4rem calc(1rem + 1.75rem) !important;
    margin: 0.05rem 0.5rem;
    border-radius: 6px;
    font-size: 0.825rem;
    transition: all 0.15s ease;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-collapse .dropdown-menu .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff !important;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-collapse .dropdown-menu .dropdown-item.active {
    background: rgba(32, 107, 196, 0.12) !important;
    color: var(--tblr-primary, #206bc4) !important;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-collapse .dropdown-menu .dropdown-item i {
    font-size: 0.7rem;
    margin-right: 0.5rem;
    opacity: 0.5;
}

.navbar-vertical[data-bs-theme="dark"] .navbar-collapse .dropdown-menu .dropdown-item.active i {
    opacity: 1;
}

/* ── Custom scrollbar ── */
.navbar-vertical[data-bs-theme="dark"]::-webkit-scrollbar {
    width: 4px;
}

.navbar-vertical[data-bs-theme="dark"]::-webkit-scrollbar-track {
    background: transparent;
}

.navbar-vertical[data-bs-theme="dark"]::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}

.navbar-vertical[data-bs-theme="dark"]::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* ── Version badge at bottom ── */
.navbar-vertical[data-bs-theme="dark"] .fw-medium {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    opacity: 0.4;
}