body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: url('assets/background.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
}

.overlay {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(0, 0, 0, 0.5);
    padding-top: 60px;
}

.logo {
    width: 336px; /* 20% bigger than 280px */
    margin-top: 0;
    margin-bottom: 30px;
    display: block;
}

h1 {
    color: #fff;
    font-size: 3em;
    margin: 0;
}

.subtitle-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 24px;
    z-index: 2;
}

.subtitle {
    color: #ddd;
    font-size: 1.5em;
    margin: 12px 0;
    text-align: center;
}

.footer {
    width: 100%;
    padding: 18px 0 14px 0;
    text-align: center;
    color: #fff;
    font-size: 1em;
    background: linear-gradient(
        to top,
        #000 0%,
        rgba(0,0,0,0.85) 60%,
        rgba(0,0,0,0.0) 100%
    );
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 10;
    letter-spacing: 0.01em;
}
    z-index: 10;
    letter-spacing: 0.01em;
}