:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #1e293b;
    background: #eff6ff;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: grid;
    place-items: center;
    padding: 24px;
    background: radial-gradient(circle at top, #dbeafe, #f8fafc 55%);
}

.error-card {
    width: min(100%, 620px);
    padding: 48px 32px;
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 28px;
    box-shadow: 0 24px 70px rgba(30, 64, 175, 0.14);
}

.error-code {
    margin: 0 0 10px;
    color: #2563eb;
    font-size: clamp(1.15rem, 4vw, 1.5rem);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(1.8rem, 6vw, 2.7rem);
    line-height: 1.1;
}

p {
    margin: 18px auto 0;
    color: #64748b;
    line-height: 1.7;
}

a {
    display: inline-flex;
    margin-top: 28px;
    padding: 12px 22px;
    color: white;
    font-weight: 700;
    text-decoration: none;
    background: #2563eb;
    border-radius: 999px;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}

a:hover {
    background: #1d4ed8;
}