:root {
     --primary-color: rgba(3, 15, 19, 0.55);
     --overlay-color: rgba(175, 186, 194, 0.85);
     --menu-speed: 0.75s;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.4;
}

.container {
    max-width: 960px;
    margin: auto;
    overflow: hidden;
    padding: 0 3rem;
}

.showcase {
    background-color: var(--primary-color);
    color: #fff;
    height: 100vh;
    position: relative;
}

.showcase:before {
    content: '';
    background: url('../img/thumbnail_IMG_4121.jpg') no-repeat center center/cover;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.showcase .showcase-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100%;
}

.showcase h1 {
    font-size: 4rem;
}

.showcase p {
    font-size: 1.3rem;
}

.btn {
    display: inline-block;
    border: none;
    background-color: var(--primary-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    margin-top: 1rem;
    text-decoration: none;
    transition: opacity 1s ease-in;
}

.btn:hover {
    opacity: 0.7;
}