:root {
    --hub-font: "DM Sans", system-ui, -apple-system, sans-serif;
    --hub-font-display: "Instrument Sans", var(--hub-font);
    --hub-sidebar-bg: linear-gradient(165deg, #0f172a 0%, #1e3a5f 48%, #0c4a6e 100%);
    --hub-sidebar-width: 268px;
    --hub-accent: #0ea5e9;
    --hub-accent-soft: rgba(14, 165, 233, 0.12);
    --hub-surface: #ffffff;
    --hub-bg: #f0f4f8;
    --hub-border: rgba(15, 23, 42, 0.08);
    --hub-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --hub-radius: 14px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--hub-font);
    -webkit-font-smoothing: antialiased;
}

.hub-admin-body {
    margin: 0;
    background: var(--hub-bg);
    min-height: 100vh;
    overflow-x: hidden;
}

.hub-admin-shell {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

.hub-sidebar {
    width: var(--hub-sidebar-width);
    flex-shrink: 0;
    background: var(--hub-sidebar-bg);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1rem;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    height: 100dvh;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 200;
}

.hub-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.5rem 0.75rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 1rem;
}

.hub-sidebar-brand strong {
    display: block;
    font-family: var(--hub-font-display);
    font-size: 1.05rem;
    color: #fff;
}

.hub-sidebar-brand small {
    font-size: 0.7rem;
    opacity: 0.75;
}

.hub-brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: #7dd3fc;
    overflow: hidden;
    flex-shrink: 0;
}

.hub-brand-mark .hub-brand-logo {
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: contain;
    padding: 4px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
}

.hub-setup-banner {
    background: linear-gradient(135deg, #eff6ff 0%, #ecfeff 100%);
}

.hub-setup-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #0ea5e9;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.hub-setup-steps li {
    margin-bottom: 0.35rem;
}

.hub-event-list li {
    margin-bottom: 0.35rem;
}

.hub-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.hub-nav-link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem 0.85rem;
    border-radius: 10px;
    color: rgba(226, 232, 240, 0.88);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.925rem;
    transition: background 0.15s, color 0.15s;
}

.hub-nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.hub-nav-link.active {
    background: rgba(14, 165, 233, 0.25);
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(125, 211, 252, 0.35);
}

.hub-sidebar-foot {
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hub-main {
    flex: 1;
    min-width: 0;
    min-height: 100vh;
    min-height: 100dvh;
    margin-left: var(--hub-sidebar-width);
    width: calc(100% - var(--hub-sidebar-width));
    display: flex;
    flex-direction: column;
    background: var(--hub-bg);
    position: relative;
    z-index: 1;
}

.hub-topbar {
    background: var(--hub-surface);
    border-bottom: 1px solid var(--hub-border);
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.hub-menu-toggle {
    color: #0f172a;
    text-decoration: none;
    padding: 0;
}

.hub-topbar-title {
    flex: 1;
}

.hub-topbar-title h1 {
    font-family: var(--hub-font-display);
    font-weight: 600;
}

.hub-topbar-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.hub-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--hub-accent-soft);
    color: #0369a1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.hub-content {
    flex: 1 1 auto;
    min-height: 0;
    padding-bottom: 2rem;
    width: 100%;
}

#hubGatewayEdit {
    scroll-margin-top: 5.5rem;
}

.hub-field-editing .form-control {
    border-color: #0ea5e9;
    box-shadow: 0 0 0 0.2rem rgba(14, 165, 233, 0.12);
}

.hub-field-wrap .form-control:focus {
    border-color: #0ea5e9;
}

.hub-footer {
    flex-shrink: 0;
    background: var(--hub-surface);
    border-top: 1px solid var(--hub-border);
    margin-top: auto;
    position: relative;
    z-index: 2;
}

.hub-card-panel {
    background: var(--hub-surface);
    border-radius: var(--hub-radius);
    border: 1px solid var(--hub-border);
    box-shadow: var(--hub-shadow);
    padding: 1.35rem 1.5rem;
}

.hub-card-panel.hub-card-stretch {
    height: 100%;
}

.hub-kpi {
    position: relative;
    overflow: hidden;
}

.hub-kpi::after {
    content: "";
    position: absolute;
    right: -20px;
    top: -20px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--hub-accent-soft);
    opacity: 0.6;
}

.hub-kpi-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.hub-kpi-value {
    font-family: var(--hub-font-display);
    font-size: 1.65rem;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.2;
}

.hub-kpi-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #64748b;
    font-weight: 600;
}

.hub-table-wrap {
    border-radius: var(--hub-radius);
    overflow: hidden;
    border: 1px solid var(--hub-border);
}

.hub-table-wrap .table {
    margin-bottom: 0;
}

.hub-table-wrap thead {
    background: #f8fafc;
}

.hub-badge {
    font-weight: 500;
    font-size: 0.75rem;
}

.hub-auth-body {
    min-height: 100vh;
    margin: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e40af 50%, #0e7490 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.hub-auth-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 960px;
    width: 100%;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
}

.hub-auth-hero {
    padding: 3rem 2.5rem;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hub-auth-hero h1 {
    font-family: var(--hub-font-display);
    font-weight: 700;
    font-size: 2rem;
}

.hub-auth-hero .hub-brand-logo {
    width: 56px;
    max-height: 56px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 6px;
}

.hub-auth-form-wrap {
    background: #fff;
    padding: 2.5rem 2rem;
}

.hub-public-body {
    margin: 0;
    min-height: 100vh;
    background: var(--hub-bg);
}

.hub-public-hero {
    background: linear-gradient(160deg, #eff6ff 0%, #f0f4f8 40%, #ecfeff 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hub-public-nav {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hub-public-nav .brand {
    font-family: var(--hub-font-display);
    font-weight: 700;
    color: #0f172a;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.hub-btn-glow {
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hub-btn-glow:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 28px rgba(14, 165, 233, 0.45);
}

.hub-pay-card {
    max-width: 440px;
    margin: 2rem auto;
    background: #fff;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--hub-shadow);
    border: 1px solid var(--hub-border);
}

.hub-pay-amount {
    font-family: var(--hub-font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: #0369a1;
}

.hub-secret-box {
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-family: ui-monospace, monospace;
    font-size: 0.8rem;
    word-break: break-all;
}

@media (max-width: 991.98px) {
    .hub-sidebar {
        display: none;
    }

    .hub-main {
        margin-left: 0;
        width: 100%;
    }

    .hub-auth-grid {
        grid-template-columns: 1fr;
    }

    .hub-auth-hero {
        display: none;
    }
}

.hub-sidebar-offcanvas {
    background: #0f172a;
    color: #e2e8f0;
}

.hub-sidebar-offcanvas .hub-nav-link {
    color: #e2e8f0;
}