/* ============================================
   LAYOUT.CSS - Sidebar, Topbar & Navigation
   Dashboard layout structure
   ============================================ */

/* ---- Sidebar ---- */
.vs-sidebar {
    background-color: var(--vs-surface-color);
    border-right: 1px solid var(--vs-border-color);
    min-height: 100vh;
    width: 260px;
    min-width: 260px;
    transition: all 0.3s ease;
}

@media (max-width: 991.98px) {
    .vs-sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        z-index: 1050;
    }
    .vs-sidebar.show {
        left: 0;
    }
    .vs-sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 1040;
        backdrop-filter: blur(2px);
    }
    .vs-sidebar-overlay.show {
        display: block;
    }
}
.vs-sidebar-dark {
    background-color: var(--vs-primary);
    color: rgba(255, 255, 255, 0.8);
}

/* ---- Sidebar Navigation Links ---- */
.vs-nav-link {
    color: var(--vs-text-body);
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: var(--vs-radius-md);
    margin-bottom: 0.25rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.vs-nav-link:hover {
    background-color: rgba(0,0,0,0.03);
    color: var(--vs-text-header);
}
.vs-nav-link.active {
    background-color: rgba(0, 35, 111, 0.05);
    color: var(--vs-primary);
    border-left: 4px solid var(--vs-primary);
    border-radius: 0 var(--vs-radius-md) var(--vs-radius-md) 0;
}

/* ---- Sidebar Dark Variant ---- */
.vs-sidebar-dark .vs-nav-link {
    color: rgba(255,255,255,0.7);
}
.vs-sidebar-dark .vs-nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    color: #fff;
}
.vs-sidebar-dark .vs-nav-link.active {
    background-color: rgba(255,255,255,0.15);
    color: #fff;
    border-left: 4px solid #fff;
}

/* ---- Topbar ---- */
.vs-topbar {
    background-color: var(--vs-surface-color);
    border-bottom: 1px solid var(--vs-border-color);
    padding: 1rem 1.5rem;
}

/* ---- Brand Logo ---- */
.vs-brand-logo {
    height: auto;
    max-height: 56px;
    width: auto;
    max-width: 100%;
    transition: transform 0.3s ease;
}
.vs-brand-logo:hover {
    transform: translateY(-2px) scale(1.02);
}
.vs-brand-logo-sm {
    height: auto;
    max-height: 40px;
    width: auto;
    max-width: 100%;
}
.vs-brand-logo-lg {
    height: auto;
    max-height: 140px;
    width: auto;
    max-width: 100%;
}