/* --------------------------------------------------------------------------
   Error pages
-------------------------------------------------------------------------- */
.error-page {
    min-height: calc(100vh - 200px);
    min-height: calc(100dvh - 200px);
    display: flex;
    align-items: center;
    padding: var(--space-4xl) 0;
}
.error-card {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--r-card);
    padding: var(--space-3xl) var(--space-2xl);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}
.error-code {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 96px;
    line-height: 1;
    letter-spacing: -0.04em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-variant-numeric: tabular-nums;
    margin-bottom: var(--space-md);
}
.error-card h1 {
    font-size: 26px;
    margin-bottom: var(--space-md);
    color: var(--text);
}
.error-message {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: var(--space-xl);
    max-width: 44ch;
    margin-left: auto;
    margin-right: auto;
}
.error-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}
.error-ref {
    margin-top: var(--space-lg);
    font-size: 12px;
    color: var(--text-muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    letter-spacing: 0.04em;
}