* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-size: 1.1rem;
    color: white;
    font-family: sans-serif;
}

html, body {
    height: 100%;
}

.bg-image {
    position: fixed;
    background-image: url("background.jpg");
    height: 100vh;
    width: 100vw;
    top: 0;
    left: 0;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    z-index: -1;
    overflow: hidden;
}

.header-container {
    backdrop-filter: blur(8px);
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 3.5rem;
    top: 0;
    left: 0;
    z-index: 1000;
    background-color: #3838387a;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

button {
    border: none;
    background: rgb(11, 29, 78);
    padding: 0.6rem;
    margin: 0;
}

.header-container img {
    position: absolute;
    left: 1.2rem;
    height: 3.5rem;
}

.header-container h6 {
    font-size: 2.2rem;
    margin: 0 auto;
    text-align: center;
}

.contect-block {
    width: 80%;
    max-width: 800px;
    margin: 5.5rem auto;
    display: flex;
    align-items: center;
    flex-direction: column;
    text-align: center;
    position: relative;
    z-index: 1;
}

.line {
    width: 25vw;
    height: 2px;
    background-color: #868686;
    margin: 2.2rem auto;
    border-radius: 1px;
}

.title {
    font-size: 2.2rem;
    font-weight: bold;
    opacity: 1;
    transition: opacity 1s ease-in-out;
}

.fade-out {
    opacity: 0;
}

@keyframes ripple {
    0% {
        border: solid 2px white;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

.manager {
    font-size: 1.6rem;
    min-height: 3.5rem;
    min-width: 8.5rem;
    margin-top: 3.5rem;
    font-weight: bold;
    color: #ffffff !important;
    padding: 1.1rem 2.2rem;
    border-radius: 20px;
    border: 0px ridge #f3c846;
    background: #098dbc;
    background: linear-gradient(to top, #098dbc, #4d5b7a);
    cursor: pointer;
    z-index: 1;
    position: relative;
}

.manager:hover {
    color: #cccccc !important;
    background: #16808b;
    background: linear-gradient(to top, #16808b, #112e4c);
}

.manager::before {
    content: '';
    min-height: 3.5rem;
    min-width: 8.5rem;
    border-radius: 1.2rem;
    border: 6px solid #098dbc;
    position: absolute;
    z-index: -2;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ring 1.5s infinite;
}

@keyframes ring {
    0% {
        height: 3.5rem;
        width: 8.5rem;
        opacity: 1;
    }
    100% {
        height: 7rem;
        width: 17rem;
        opacity: 0;
    }
}

@keyframes star {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(-2000px);
    }
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.8;
    }
    50% {
        opacity: 0.4;
    }
}

.star {
    position: absolute;
    background-color: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: star 5s linear infinite, twinkle 2s infinite;
}

.star {
    width: 4px;
    height: 4px; 
}

@media (max-width: 768px) {
    .header-container h6 {
        font-size: 1.7rem;
    }

    .title {
        font-size: 1.7rem;
    }

    .manager {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .header-container h6 {
        font-size: 1.4rem;
    }

    .title {
        font-size: 1.4rem;
    }

    .manager {
        font-size: 1.2rem;
        padding: 0.6rem 1.2rem;
    }

    .line {
        width: 40vw;
    }
}