*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #fafaf8;
    --fg: #111;
    --muted: #6b6b6b;
    --accent: #d4d0c8;
}

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Inter",
                 "Segoe UI", Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body {
    display: grid;
    place-items: center;
    padding: 2rem;
}

.error {
    text-align: center;
    max-width: 32rem;
}

.error__code {
    font-family: ui-monospace, SFMono-Regular, "JetBrains Mono",
                 Menlo, monospace;
    font-size: clamp(7rem, 22vw, 14rem);
    font-weight: 200;
    line-height: 1;
    letter-spacing: -0.05em;
    color: var(--fg);
    margin-bottom: 1.5rem;
    user-select: none;
}

.error__title {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: 0.75rem;
}

.error__message {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--muted);
    max-width: 28ch;
    margin: 0 auto 2.5rem;
}

.error__meta {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent);
    border-radius: 999px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

.error__sep {
    opacity: 0.5;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f0f10;
        --fg: #f5f5f5;
        --muted: #8a8a8a;
        --accent: #2a2a2c;
    }
}

@media (max-width: 480px) {
    .error__meta {
        font-size: 0.65rem;
        padding: 0.4rem 0.85rem;
    }
}