:root {
    --rf-ink: #172033;
    --rf-muted: #667085;
    --rf-surface: #ffffff;
    --rf-canvas: #f4f7fb;
    --rf-line: #e5eaf2;
    --rf-primary: #3155d9;
    --rf-primary-dark: #243eaa;
    --rf-accent: #f08a5d;
    --rf-success: #16805b;
    --rf-shadow: 0 12px 34px rgba(24, 39, 75, 0.08);
}

.app-page {
    min-height: 100vh;
    color: var(--rf-ink);
    background:
        radial-gradient(circle at 8% 0%, rgba(49, 85, 217, 0.08), transparent 26rem),
        linear-gradient(180deg, #f9fbff 0%, var(--rf-canvas) 55%, #eef3f9 100%);
}

.app-page .navbar {
    min-height: 70px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.9) !important;
    border-bottom: 1px solid rgba(229, 234, 242, 0.9);
    box-shadow: 0 5px 20px rgba(24, 39, 75, 0.06) !important;
    backdrop-filter: blur(14px);
}

.app-page .navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    letter-spacing: -0.02em;
    color: var(--rf-primary) !important;
}

.app-page .navbar .navbar-brand-logo {
    display: block;
    width: 28px !important;
    height: 28px !important;
    max-width: 28px !important;
    max-height: 28px !important;
    flex: 0 0 28px;
    object-fit: cover;
    border: 1px solid #e4b63d;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 4px 10px rgba(24, 39, 75, 0.14);
}

.app-page .navbar-nav {
    gap: 4px;
}

.app-page .nav-link {
    position: relative;
    padding: 9px 13px !important;
    color: #596579;
    font-size: 14px;
    font-weight: 600;
    border-radius: 9px;
    transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.app-page .nav-link:hover,
.app-page .nav-link.active {
    color: var(--rf-primary) !important;
    background: #eef2ff;
    transform: translateY(-1px);
}

.app-page .nav-link.active::after {
    position: absolute;
    right: 13px;
    bottom: 3px;
    left: 13px;
    height: 2px;
    content: "";
    border-radius: 2px;
    background: var(--rf-primary);
}

.app-page .settings-link {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    padding: 0 !important;
    font-size: 17px;
}

.app-page .container {
    max-width: 1440px;
}

.app-page .card {
    border: 1px solid rgba(229, 234, 242, 0.9);
    box-shadow: var(--rf-shadow);
}

.app-page .card-header {
    letter-spacing: 0.01em;
}

.app-page .summary-card {
    position: relative;
    isolation: isolate;
}

.app-page .summary-card::after {
    position: absolute;
    top: -30px;
    right: -30px;
    z-index: -1;
    width: 100px;
    height: 100px;
    content: "";
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
}

.app-page .summary-card .card-body {
    min-height: 188px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.app-page .summary-value {
    color: var(--rf-ink);
    letter-spacing: -0.04em;
}

.app-page .summary-label {
    letter-spacing: 0.02em;
}

.app-page .btn {
    border-radius: 9px;
    font-weight: 600;
    transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.app-page .btn:hover {
    transform: translateY(-1px);
}

.app-page .btn-primary,
.app-page .refresh-btn {
    background: linear-gradient(135deg, var(--rf-primary), #6381ed);
    box-shadow: 0 8px 18px rgba(49, 85, 217, 0.2);
}

.app-page .btn-primary:hover,
.app-page .refresh-btn:hover {
    background: linear-gradient(135deg, var(--rf-primary-dark), var(--rf-primary));
    box-shadow: 0 11px 22px rgba(49, 85, 217, 0.27);
}

.app-page .form-control,
.app-page .form-select {
    min-height: 44px;
    color: var(--rf-ink);
    background-color: #fbfcfe;
    border: 1px solid var(--rf-line);
    box-shadow: none;
}

.app-page .form-control:focus,
.app-page .form-select:focus {
    background-color: white;
    border-color: var(--rf-primary);
    box-shadow: 0 0 0 4px rgba(49, 85, 217, 0.12);
}

.app-page .table-responsive {
    border: 1px solid var(--rf-line);
    border-radius: 12px;
}

.app-page .table {
    margin-bottom: 0;
}

.app-page .table thead th {
    padding-top: 13px;
    padding-bottom: 13px;
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
}

.app-page .table tbody td {
    padding-top: 14px;
    padding-bottom: 14px;
    vertical-align: middle;
    color: #475467;
}

.app-page .table tbody tr {
    transition: background 160ms ease, transform 160ms ease;
}

.app-page .table tbody tr:hover {
    background: #f5f7ff !important;
}

.app-page .modal-content {
    overflow: hidden;
    border: 1px solid var(--rf-line);
    border-radius: 16px;
    box-shadow: 0 24px 70px rgba(24, 39, 75, 0.2);
}

.app-page .modal-header {
    padding: 18px 22px;
}

.app-page .modal-body {
    padding: 24px;
}

.app-page .alert {
    border: 1px solid transparent;
    box-shadow: 0 8px 18px rgba(24, 39, 75, 0.06);
}

@media (max-width: 991.98px) {
    .app-page .navbar {
        padding: 10px 16px;
    }

    .app-page .navbar-collapse {
        padding-top: 12px;
    }

    .app-page .navbar-text {
        display: inline-block;
        margin: 12px 0 !important;
    }
}

@media (max-width: 575.98px) {
    .app-page .container {
        padding-right: 14px;
        padding-left: 14px;
    }

    .app-page .summary-card .card-body {
        min-height: 150px;
        padding: 18px;
    }

    .app-page .summary-value {
        font-size: 27px;
    }

    .app-page .card-header {
        padding: 13px 15px !important;
    }

    .app-page .card-body {
        padding: 15px !important;
    }

    .app-page .table {
        min-width: 760px;
    }
}

/* Shared application polish */
:root {
    --rf-navy: #17243b;
    --rf-blue: #2864d7;
    --rf-teal: #0f9f9a;
    --rf-coral: #ed7658;
    --rf-lilac: #7667d9;
    --rf-soft-blue: #edf4ff;
    --rf-soft-teal: #eafaf7;
    --rf-radius: 16px;
}

html {
    scroll-behavior: smooth;
}

.app-page {
    position: relative;
    overflow-x: hidden;
    font-family: "Segoe UI", Tahoma, sans-serif;
    background:
        radial-gradient(circle at 95% 3%, rgba(237, 118, 88, .12), transparent 24rem),
        radial-gradient(circle at 4% 20%, rgba(40, 100, 215, .1), transparent 28rem),
        linear-gradient(145deg, #f9fbff 0%, #f4f7fb 52%, #eef7f7 100%);
}

.app-page::before {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: -1;
    height: 4px;
    content: "";
    background: linear-gradient(90deg, var(--rf-blue), var(--rf-teal), var(--rf-coral));
}

.app-page .navbar {
    min-height: 74px;
    padding: 13px clamp(16px, 3vw, 42px);
    background: rgba(255, 255, 255, .82) !important;
    border-bottom: 1px solid rgba(219, 227, 239, .9);
    box-shadow: 0 10px 30px rgba(23, 36, 59, .07) !important;
}

.app-page .navbar-brand {
    color: var(--rf-navy) !important;
    font-size: 18px;
    font-weight: 800;
}

.app-page .navbar-brand i {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--rf-blue), var(--rf-teal));
    box-shadow: 0 8px 20px rgba(40, 100, 215, .25);
}

.app-page .navbar-nav {
    gap: 6px;
}

.app-page .nav-link {
    padding: 10px 14px !important;
    color: #5c687b;
    border-radius: 11px;
    font-size: 13px;
    letter-spacing: .01em;
}

.app-page .nav-link:hover,
.app-page .nav-link.active {
    color: var(--rf-blue) !important;
    background: var(--rf-soft-blue);
}

.app-page .nav-link.active::after {
    right: 14px;
    bottom: 4px;
    left: 14px;
    background: linear-gradient(90deg, var(--rf-blue), var(--rf-teal));
}

.app-page .navbar-text {
    color: #536176;
    font-size: 13px;
    font-weight: 600;
}

.app-page > .container,
.app-page > main.container {
    padding-top: 8px;
}

.app-page .card {
    overflow: hidden;
    border: 1px solid rgba(220, 228, 239, .9) !important;
    border-radius: var(--rf-radius) !important;
    background: rgba(255, 255, 255, .9);
    box-shadow: 0 16px 38px rgba(28, 49, 82, .08) !important;
}

.app-page .card-header {
    padding: 16px 20px;
    color: var(--rf-navy);
    background: linear-gradient(135deg, #f7faff, #eef7f7) !important;
    border-bottom: 1px solid var(--rf-line);
    font-size: 14px;
    font-weight: 800;
}

.app-page .card-header .btn-light {
    color: var(--rf-blue);
    border: 1px solid rgba(40, 100, 215, .15);
    background: white;
}

.app-page .btn {
    min-height: 40px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
}

.app-page .btn-primary,
.app-page .refresh-btn {
    border-color: transparent;
    background: linear-gradient(135deg, var(--rf-blue), var(--rf-teal)) !important;
    box-shadow: 0 9px 20px rgba(40, 100, 215, .2) !important;
}

.app-page .btn-primary:hover,
.app-page .refresh-btn:hover {
    background: linear-gradient(135deg, #2254bb, #087f7b) !important;
    box-shadow: 0 13px 26px rgba(40, 100, 215, .28) !important;
}

.app-page .btn-outline-primary {
    color: var(--rf-blue);
    border-color: rgba(40, 100, 215, .35);
}

.app-page .btn-outline-primary:hover {
    color: white;
    background: var(--rf-blue);
}

.app-page .form-control,
.app-page .form-select {
    min-height: 46px;
    border: 1px solid #dce4ef !important;
    border-radius: 11px !important;
    background: rgba(251, 253, 255, .9) !important;
}

.app-page .form-control:focus,
.app-page .form-select:focus {
    border-color: var(--rf-blue) !important;
    box-shadow: 0 0 0 4px rgba(40, 100, 215, .11) !important;
}

.app-page .table-responsive {
    overflow-x: auto;
    border: 1px solid #e1e8f1;
    border-radius: 13px;
    background: white;
}

.app-page .table thead th {
    color: #58677c;
    background: #f4f7fb !important;
    border-bottom: 1px solid #dce4ef;
    font-size: 11px;
    letter-spacing: .08em;
}

.app-page .table tbody td {
    color: #4b5b70;
    border-color: #edf1f6;
}

.app-page .table tbody tr:hover {
    background: #f1f7ff !important;
}

.app-page .alert {
    border-radius: 13px;
    border-left: 4px solid currentColor;
}

.app-page .modal-header {
    color: var(--rf-navy);
    background: linear-gradient(135deg, #f7faff, #eef7f7) !important;
}

.app-page .modal-title {
    font-size: 16px;
    font-weight: 800;
}

.app-page .status-badge,
.app-page .status-label,
.app-page .badge {
    letter-spacing: .02em;
}

/* Dashboard-specific visual hierarchy */
.app-page .dashboard-banner {
    border: 1px solid rgba(40, 100, 215, .12);
    border-radius: var(--rf-radius);
    background: linear-gradient(120deg, rgba(237, 244, 255, .95), rgba(234, 250, 247, .95));
    box-shadow: 0 12px 28px rgba(40, 100, 215, .07);
}

.app-page .summary-card {
    min-height: 188px;
    border-top: 3px solid var(--rf-blue) !important;
}

.app-page .summary-card:nth-child(2) { border-top-color: var(--rf-teal) !important; }
.app-page .summary-card:nth-child(3) { border-top-color: #36a3db !important; }
.app-page .summary-card:nth-child(4) { border-top-color: var(--rf-coral) !important; }
.app-page .summary-card:nth-child(5) { border-top-color: var(--rf-lilac) !important; }
.app-page .summary-card:nth-child(6) { border-top-color: #e0a33a !important; }

.app-page .summary-card:hover,
.app-page .monitoring-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 42px rgba(28, 49, 82, .13) !important;
}

.app-page .summary-icon {
    width: 54px;
    height: 54px;
    border-radius: 15px;
    box-shadow: 0 10px 18px rgba(28, 49, 82, .12);
}

.app-page .filter-chip {
    border: 1px solid #dce4ef;
    color: #536176;
    background: rgba(255, 255, 255, .8);
}

.app-page .filter-chip.active,
.app-page .filter-chip:hover {
    background: linear-gradient(135deg, var(--rf-blue), var(--rf-teal));
    box-shadow: 0 8px 18px rgba(40, 100, 215, .2);
}

@media (max-width: 991.98px) {
    .app-page .navbar-collapse {
        margin-top: 10px;
        padding: 10px;
        border: 1px solid var(--rf-line);
        border-radius: 14px;
        background: rgba(255, 255, 255, .95);
    }
}

@media (max-width: 575.98px) {
    .app-page .dashboard-banner {
        align-items: flex-start;
        flex-direction: column;
    }

    .app-page .header-actions {
        align-items: stretch;
        flex-direction: column;
        width: 100%;
    }

    .app-page .refresh-btn {
        width: 100%;
        text-align: center;
    }
}