body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

body {
    background: linear-gradient(-45deg, #b71c1c, #d32f2f, #f44336, #e53935);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

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

.container {
    text-align: center;
    color: white;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
    max-width: 80%;
}

h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -1px;
}

p.subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.date {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    display: inline-block;
}

[lang] {
    display: none;
}