/* --- Error Pages (404, 500, 503) --- */
.error-page-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 6rem 1.5rem 2rem;
}

.error-card {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    padding: 3rem 2.5rem;
    max-width: 420px;
    width: 100%;
}

.error-code {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    letter-spacing: -0.03em;
}

.error-card h1 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.error-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1.75rem;
    line-height: 1.6;
}

.error-card .btn {
    min-width: 160px;
}