body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    color: #18212f;
    background: #f5f7fb;
}

.admin-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 32px;
}

.hero {
    background: #ffffff;
    border: 1px solid #dbe3ef;
    border-radius: 8px;
    padding: 28px;
}

.eyebrow {
    margin: 0 0 8px;
    color: #0f766e;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 12px;
}

h1, h2, p {
    margin-top: 0;
}

.metrics, .admin-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.metrics article, .admin-grid article {
    background: #ffffff;
    border: 1px solid #dbe3ef;
    border-radius: 8px;
    padding: 18px;
}

.metrics span {
    display: block;
    color: #5f6f86;
    font-size: 13px;
}

.metrics strong {
    display: block;
    margin-top: 6px;
    font-size: 24px;
}

.admin-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.login-form {
    display: grid;
    gap: 10px;
    max-width: 360px;
}

.login-form input {
    border: 1px solid #c7d2e1;
    border-radius: 6px;
    padding: 10px;
    font: inherit;
}

.login-form button {
    border: 0;
    border-radius: 6px;
    padding: 11px 14px;
    background: #0f766e;
    color: #ffffff;
    font-weight: 700;
}

.error {
    color: #b91c1c;
    font-weight: 600;
}

@media (max-width: 800px) {
    .metrics, .admin-grid {
        grid-template-columns: 1fr;
    }
}