/* QualiCube Connectors visual refinements */

.app-header.navbar {
    background: linear-gradient(90deg, #121821 0%, #111827 45%, #0f172a 100%);
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.35);
}

.app-header .navbar-brand {
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.app-sidebar {
    border-right: 1px solid rgba(148, 163, 184, 0.12);
}

.app-sidebar .sidebar-wrapper {
    padding: 1.5rem 1.25rem 2.5rem;
}

.app-sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: 0.85rem;
    color: rgba(226, 232, 240, 0.8);
    transition: all 0.15s ease;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.app-sidebar .nav-link i {
    font-size: 1.1rem;
}

.app-sidebar .nav-link:hover {
    background: rgba(59, 130, 246, 0.12);
    color: #e2e8f0;
}

.app-sidebar .nav-link.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.22), rgba(94, 234, 212, 0.25));
    color: #f8fafc;
    box-shadow: 0 12px 28px -24px rgba(59, 130, 246, 0.8);
}


.metric-card {
    border-radius: 1.25rem;
    border: none;
    border-left: 6px solid var(--metric-accent, rgba(15, 23, 42, 0.1));
    background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
}

.metric-card.text-primary { --metric-accent: rgba(59, 130, 246, 0.45); }
.metric-card.text-success { --metric-accent: rgba(34, 197, 94, 0.45); }
.metric-card.text-warning { --metric-accent: rgba(250, 204, 21, 0.6); }

.metric-card .metric-label {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    font-weight: 600;
}

.metric-card .metric-value {
    font-size: clamp(2.2rem, 2rem + 1vw, 2.8rem);
    font-weight: 700;
}

.card-header small,
.card-header .text-body-secondary {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.9rem;
}

.list-group-item.active {
    border-color: rgba(59, 130, 246, 0.35) !important;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(94, 234, 212, 0.25)) !important;
    color: #0f172a !important;
}

.list-group-item.list-group-item-action {
    border-radius: 1rem;
    margin: 0.35rem 0;
    border: 1px solid rgba(148, 163, 184, 0.2);
    transition: transform 0.15s ease, border 0.15s ease;
}

.list-group-item.list-group-item-action:hover {
    transform: translateY(-2px);
    border-color: rgba(59, 130, 246, 0.35);
}

.card.shadow-sm {
    border-radius: 1.25rem;
}

.table > :not(caption) > * > * {
    vertical-align: middle;
}

.table-success-subtle {
    --bs-table-bg: rgba(34, 197, 94, 0.12);
    --bs-table-color: #0f5132;
}

.table-danger-subtle {
    --bs-table-bg: rgba(239, 68, 68, 0.12);
    --bs-table-color: #842029;
}

.table-warning-subtle {
    --bs-table-bg: rgba(250, 204, 21, 0.16);
    --bs-table-color: #664d03;
}

.table-secondary-subtle {
    --bs-table-bg: rgba(148, 163, 184, 0.16);
    --bs-table-color: #1f2937;
}

.alert-shadow,
.card.shadow-sm,
.list-group-item-action {
    box-shadow: 0 24px 48px -32px rgba(15, 23, 42, 0.35);
}

.btn-icon-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
}

@media (max-width: 992px) {
    .app-sidebar .sidebar-wrapper {
        padding-top: 1rem;
    }
}

.btn-primary {
    border: none;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 60%, #0ea5e9 100%);
    box-shadow: 0 16px 32px -20px rgba(37, 99, 235, 0.75);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 60%, #0284c7 100%);
    box-shadow: 0 18px 40px -18px rgba(37, 99, 235, 0.8);
}

.btn-outline-secondary {
    border-width: 2px;
    color: #1f2937;
}

.btn-outline-secondary:hover {
    background: #1f2937;
    color: #f8fafc;
}

.btn-outline-primary {
    border-width: 2px;
}

.btn-outline-primary:hover {
    background: rgba(37, 99, 235, 0.1);
}

.list-group-flush>.list-group-item {
    background: transparent;
}

.list-group-item .badge {
    font-weight: 500;
}

.alert.card {
    border-radius: 1.25rem;
}

.alert {
    border-radius: 1.25rem;
    border: none;
    box-shadow: 0 24px 48px -36px rgba(153, 27, 27, 0.45);
}

.app-main .container-fluid {
    padding: 2.5rem clamp(1.5rem, 4vw, 3rem) 4rem;
}

.card-header {
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.scenario-card {
    border-radius: 1.2rem;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.scenario-card .btn-icon-circle {
    border-width: 2px;
}