:root {
    --portal-navy: #12304a;
    --portal-teal: #1f6f78;
    --portal-sand: #f7f5ef;
    --portal-ink: #203040;
    --portal-muted: #6c7a89;
    --portal-border: #d9e1e8;
    --portal-success: #2e8b57;
    --portal-warning: #d08c00;
}

html, body {
    background: linear-gradient(180deg, #eef4f7 0%, #f9fbfc 35%, #f4f1ea 100%);
    color: var(--portal-ink);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
    margin: 0;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: var(--portal-teal);
}

.btn-primary {
    background-color: var(--portal-teal);
    border-color: var(--portal-teal);
    color: #fff;
}

.btn-outline-primary {
    border-color: var(--portal-teal);
    color: var(--portal-teal);
}

.btn-outline-primary:hover {
    background-color: var(--portal-teal);
    color: #fff;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.15rem rgba(31, 111, 120, 0.25);
}

.page-shell {
    min-height: 100vh;
}

.portal-sidebar {
    background: linear-gradient(180deg, var(--portal-navy) 0%, #173f54 100%);
    color: #fff;
    min-height: 100vh;
}

.portal-brand {
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-decoration: none;
}

.portal-brand:hover {
    color: #fff;
}

.portal-menu-title {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.portal-nav .nav-link {
    border-radius: 0.75rem;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 0.25rem;
    padding: 0.75rem 0.9rem;
}

.portal-nav .nav-link:hover,
.portal-nav .nav-link.active {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.portal-main {
    min-height: 100vh;
}

.portal-topbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid var(--portal-border);
}

.portal-content {
    padding: 1.5rem;
}

.hero-panel,
.summary-card,
.table-card,
.form-card,
.customer-card {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(217, 225, 232, 0.95);
    border-radius: 1rem;
    box-shadow: 0 18px 45px rgba(18, 48, 74, 0.08);
}

.hero-panel {
    background: linear-gradient(135deg, rgba(18, 48, 74, 0.96), rgba(31, 111, 120, 0.88));
    color: #fff;
    overflow: hidden;
    position: relative;
}

.hero-panel::after {
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.25), transparent 38%);
    content: "";
    inset: 0;
    position: absolute;
}

.hero-panel > * {
    position: relative;
    z-index: 1;
}

.summary-card .summary-value {
    font-size: 2rem;
    font-weight: 700;
}

.summary-card .summary-label {
    color: var(--portal-muted);
    font-size: 0.95rem;
}

.status-pill {
    border-radius: 999px;
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.35rem 0.7rem;
}

.status-active,
.status-connected,
.status-valid {
    background: rgba(46, 139, 87, 0.12);
    color: var(--portal-success);
}

.status-trial,
.status-pending,
.status-expiring {
    background: rgba(208, 140, 0, 0.14);
    color: var(--portal-warning);
}

.status-inactive,
.status-expired {
    background: rgba(171, 54, 54, 0.12);
    color: #ab3636;
}

.table thead th {
    color: var(--portal-muted);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.metric-icon {
    align-items: center;
    background: rgba(31, 111, 120, 0.12);
    border-radius: 0.9rem;
    color: var(--portal-teal);
    display: inline-flex;
    font-size: 1.4rem;
    height: 3rem;
    justify-content: center;
    width: 3rem;
}

.quick-link {
    border: 1px solid var(--portal-border);
    border-radius: 0.9rem;
    color: var(--portal-ink);
    display: block;
    padding: 1rem;
    text-decoration: none;
}

.quick-link:hover {
    border-color: var(--portal-teal);
    color: var(--portal-teal);
}

#blazor-error-ui {
    background: #fff4d6;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

@media (max-width: 991.98px) {
    .portal-sidebar {
        min-height: auto;
    }

    .portal-main {
        min-height: auto;
    }

    .portal-content {
        padding: 1rem;
    }
}