body {
    margin: 0;
    font-family: Inter, system-ui, sans-serif;
    background: #F7F9FC;
    color: #1F2937;
}

.login-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.login-header h1 {
    margin: 0 0 8px;
    font-size: 24px;
    color: #0B71B8;
}

.login-header p {
    margin: 0 0 24px;
    color: #6B7280;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #D1D5DB;
    border-radius: 10px;
    background: #FFFFFF;
    color: #111827;
    font-size: 14px;
}

button.btn {
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
}

button.btn-primary {
    background: #0B71B8;
    color: #FFFFFF;
}

.login-actions {
    margin-top: 20px;
    text-align: center;
}

.login-home-link {
    display: block;
    padding: 11px 16px;
    border: 1px solid #0B71B8;
    border-radius: 10px;
    color: #0B71B8;
    font-weight: 700;
    text-decoration: none;
}

.login-home-link:hover,
.login-home-link:focus-visible {
    background: #EFF8FF;
}

.login-actions p {
    margin: 16px 0 0;
    color: #6B7280;
    font-size: 14px;
}

.login-actions p a {
    color: #0B71B8;
    font-weight: 700;
    text-decoration: none;
}

.login-actions p a:hover,
.login-actions p a:focus-visible {
    text-decoration: underline;
}

.alert {
    padding: 12px 14px;
    border-radius: 10px;
    margin-bottom: 16px;
}

.alert-error {
    background: #FEE2E2;
    color: #B91C1C;
}

.alert-success {
    background: #DCFCE7;
    color: #166534;
}

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

.sidebar {
    width: 280px;
    background: #FFFFFF;
    border-right: 1px solid #E5E7EB;
    padding: 24px 18px;
}

.sidebar h2 {
    margin-top: 0;
    margin-bottom: 24px;
    font-size: 20px;
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu li {
    margin-bottom: 12px;
}

.nav-menu a {
    display: block;
    color: #1F2937;
    text-decoration: none;
    padding: 12px 14px;
    border-radius: 10px;
}

.nav-menu a.active,
.nav-menu a:hover {
    background: #F7F9FC;
    color: #0B71B8;
}

.main-content {
    flex: 1;
    padding: 24px;
    background: #F7F9FC;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.page-header h1 {
    margin: 0;
    font-size: 28px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 18px;
}

.card {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.card h2 {
    margin: 0 0 8px;
    font-size: 18px;
    color: #6B7280;
}

.card p {
    margin: 0;
    font-size: 32px;
    font-weight: 700;
    color: #111827;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    overflow: hidden;
}

.table th,
.table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

.table th {
    background: #F7F9FC;
    color: #374151;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.badge-primary { background: #EFF6FF; color: #0B71B8; }
.badge-success { background: #DCFCE7; color: #166534; }
.badge-warning { background: #FEF3C7; color: #B45309; }
.badge-danger { background: #FEE2E2; color: #B91C1C; }

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.form-section {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 22px;
}

.form-section h3 {
    margin-top: 0;
    margin-bottom: 18px;
    font-size: 18px;
}

.form-footer {
    margin-top: 18px;
}

.btn-secondary {
    background: #E5E7EB;
    color: #111827;
}

.grid-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.central-dashboard {
    min-height: 100vh;
    background: #F7F9FC;
}

.central-shell {
    width: min(1080px, calc(100% - 40px));
    margin: 0 auto;
    padding: 24px 0 48px;
}

.central-header,
.central-header nav {
    display: flex;
    align-items: center;
}

.central-header {
    justify-content: space-between;
    gap: 24px;
    padding: 10px 0 28px;
}

.central-header nav {
    gap: 20px;
}

.central-header a,
.central-profile-link,
.central-system-card a {
    color: #0B71B8;
    font-weight: 650;
    text-decoration: none;
}

.central-brand {
    color: #0B71B8 !important;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.central-welcome {
    margin: 16px 0 26px;
}

.central-welcome h1 {
    margin: 4px 0 8px;
    font-size: clamp(28px, 4vw, 38px);
}

.central-welcome p:last-child {
    margin: 0;
    color: #6B7280;
}

.central-eyebrow {
    margin: 0;
    color: #0B71B8;
    font-size: 12px;
    font-weight: 750;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.central-profile,
.central-system-card,
.central-empty {
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.central-profile {
    padding: 24px;
}

.central-profile h2,
.central-section-heading h2 {
    margin: 0 0 18px;
}

.central-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 18px 24px;
    margin: 0 0 20px;
}

.central-details dt {
    margin-bottom: 5px;
    color: #6B7280;
    font-size: 13px;
}

.central-details dd {
    margin: 0;
    font-weight: 650;
}

.central-systems {
    margin-top: 34px;
}

.central-section-heading {
    margin-bottom: 16px;
}

.central-section-heading h2 {
    margin-top: 5px;
    margin-bottom: 0;
}

.central-system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.central-system-card {
    display: flex;
    min-height: 180px;
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
}

.central-system-card h3 {
    margin: 0 0 8px;
}

.central-system-card p {
    flex: 1;
    margin: 0 0 18px;
    color: #6B7280;
    line-height: 1.5;
}

.central-system-card a {
    display: inline-block;
    padding: 10px 14px;
    border-radius: 9px;
    background: #EFF6FF;
}

.central-empty {
    padding: 22px;
    color: #6B7280;
}

@media (max-width: 520px) {
    .central-shell {
        width: min(100% - 28px, 1080px);
        padding-top: 12px;
    }

    .central-header {
        align-items: flex-start;
    }

    .central-header nav {
        align-items: flex-end;
        flex-direction: column;
        gap: 10px;
    }
}