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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #f5f7f6;
    text-align: center;
    background: linear-gradient(-45deg, #1d4e5f, #2e8b8b, #3a7d6e, #4a6fa5);
    background-size: 400% 400%;
    animation: drift 24s ease infinite;
}

@keyframes drift {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.safe-zone {
    padding: 2rem;
    max-width: 32rem;
}

.safe-zone h1 {
    line-height: 1.1;
    margin-bottom: 1rem;
    text-shadow: 0 1px 12px rgba(0, 0, 0, 0.25);
}

.safe-zone .lead {
    display: block;
    font-size: clamp(1.2rem, 3.5vw, 1.8rem);
    font-weight: 300;
    letter-spacing: 0.04em;
    opacity: 0.85;
}

.safe-zone .big {
    display: block;
    margin-top: 0.2rem;
    font-size: clamp(2.6rem, 8vw, 4.5rem);
    font-weight: 700;
    letter-spacing: 0.01em;
}

.safe-zone p {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    font-weight: 300;
    opacity: 0.92;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.2);
}

/* Respect users who prefer less motion */
@media (prefers-reduced-motion: reduce) {
    body {
        animation: none;
    }
}