* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    font-family: Inter, Arial, sans-serif;
    background: linear-gradient(135deg, #101827, #243b55);
    color: #172033;
}

.card {
    width: 100%;
    max-width: 520px;
    padding: 48px 32px;
    text-align: center;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
}

.icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #dcfce7;
    color: #15803d;
    font-size: 34px;
}

.eyebrow {
    color: #15803d;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
}

h1 {
    margin: 16px 0;
    font-size: clamp(28px, 5vw, 40px);
}

.message {
    color: #64748b;
    line-height: 1.7;
}

a {
    display: inline-block;
    margin-top: 20px;
    padding: 14px 22px;
    border-radius: 10px;
    background: #2563eb;
    color: white;
    text-decoration: none;
    font-weight: 600;
}

a:hover {
    background: #1d4ed8;
}

.footer {
    margin-top: 32px;
    color: #94a3b8;
    font-size: 13px;
}