/* Base reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    overflow: hidden; /* no scroll */
    color: #fff;
}

/* Fullscreen background */
.hero {
    position: relative;
    min-height: 100vh;
    width: 100vw;
    background-image: url('./bg.avif');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: grid;
    place-items: center;
}

/* 25% black overlay */
.overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.25);
}

/* Center card with 50% black frame */
.center-card {
    position: relative;
    z-index: 1;
    background: rgba(0,0,0,0.5);
    padding: 24px 28px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}

.logo {
    max-width: 220px;
    height: auto;
    display: block;
}

.cta {
    display: inline-block;
    padding: 10px 16px;
    background: rgba(255,255,255,0.12);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    transition: background .2s ease, transform .2s ease;
}

.cta:hover { background: rgba(255,255,255,0.2); transform: translateY(-1px); }
.cta:active { transform: translateY(0); }

@media (max-width: 480px) {
    .center-card { width: calc(100% - 32px); }
    .logo { max-width: 180px; }
}