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

body {
    font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS",
        sans-serif;
}

/* ---------------backgrounds ------------------*/
[class^="wallpaper-"] {
    height: 100vh;
    width: 100%;
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
}
.wallpaper-1 {
    background-image: linear-gradient(#0000009e, #0000009e),
        url("images/background-1.jpg");
    background-attachment: scroll;
}
.wallpaper-2 {
    background-image: url("images/background-2.jpg");
}
.wallpaper-3 {
    background-image: url("images/background-3.jpg");
}
.wallpaper-4 {
    background-image: url("images/background-4.jpg");
}
.wallpaper-5 {
    background-image: url("images/background-5.jpg");
}
.wallpaper-6 {
    background-image: url("images/background-6.jpg");
}
.wallpaper-7 {
    background-image: url("images/background-7.jpg");
}
.wallpaper-8 {
    background-image: url("images/background-8.jpg");
}
.wallpaper-9 {
    background-image: url("images/background-9.jpg");
}
.wallpaper-10 {
    background-image: url("images/background-10.jpg");
}
.wallpaper-11 {
    background-image: url("images/background-11.jpg");
}
.wallpaper-12 {
    background-image: url("images/background-12.jpg");
}
.wallpaper-13 {
    background-image: url("images/background-13.jpg");
}
.wallpaper-14 {
    background-image: url("images/background-14.jpg");
}
.wallpaper-15 {
    background-image: url("images/background-15.jpg");
}
.wallpaper-16 {
    background-image: url("images/background-16.jpg");
}
.wallpaper-17 {
    background-image: url("images/background-17.jpg");
}
.wallpaper-18 {
    background-image: url("images/background-18.jpg");
}
.wallpaper-19 {
    background-image: url("images/background-19.jpg");
}
.wallpaper-20 {
    background-image: url("images/background-20.jpg");
}
.wallpaper-21 {
    background-image: url("images/background-21.jpg");
}
.content-box {
    width: 80vw;
    height: 80vh;
    position: relative;
}

/* ------------styling top-left side------------ */
.content-box .top-left .one {
    width: 79px;
    height: 128px;
    position: absolute;
    background-color: #000000;
    top: 0;
    left: 0;
}
.content-box .top-left .two {
    width: 79px;
    height: 128px;
    position: absolute;
    border: 1px solid #000;
    top: 8px;
    left: 8px;
}
.content-box .top-left .three {
    width: 79px;
    height: 128px;
    position: absolute;
    border: 1px solid #000;
    top: 16px;
    left: 16px;
}
.content-box .top-left .four {
    position: absolute;
    top: 8px;
    left: 0px;
    width: 46px;
    line-height: 80px;
    color: #fff;
    font-size: 100px;
    font-weight: 500;
    font-family: BS Static, Helvetica, "Helvetica Neue", "Arial Nova", Arial,
        Sans-Serif;
}
.content-box .top-left .five {
    position: absolute;
    top: 86px;
    left: 27px;
    width: 35px;
    height: 1px;
    background-color: #fff;
    transform: rotate(135deg);
}
.content-box .top-left .six {
    position: absolute;
    top: 85px;
    left: 41px;
    width: 30px;
    line-height: 40px;
    color: #fff;
    font-size: 29px;
    font-weight: 600;
    font-family: BS Static, Helvetica, "Helvetica Neue", "Arial Nova", Arial,
        Sans-Serif;
}

/* --------------styling bottom-right side -------------*/
.content-box .bottom-right {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 88px;
    height: 72px;
    border-radius: 5px;
    text-align: center;
    color: #fff;
    font-size: 45px;
    padding: 12px;
    background-color: #000;
}

/* ---------------styling bottom-left -------------------*/
.content-box .bottom-left {
    position: absolute;
    bottom: 90px;
    left: -90px;
    transform: rotate(-90deg);
    padding: 16px 20px;
    text-transform: uppercase;
    color: #fff;
    font-size: 1.2rem;
    line-height: 25px;
    width: 300px;
    height: 120px;
}
.content-box .created-for {
    font-weight: 400;
}

/* -----------------styling top-right side ----------------*/
.content-box .top-right {
    position: absolute;
    top: 90px;
    right: -90px;
    transform: rotate(90deg);
    padding: 16px 20px;
    text-transform: uppercase;
    color: #fff;
    font-size: 1.2rem;
    width: 300px;
    height: 120px;
}
.content-box .top-right h5 {
    font-weight: 400;
    line-height: 25px;
}
.content-box span.bold {
    font-weight: 600;
}

/*-------- styling top-right and botom-left corner ----------*/
.bottom-left-border {
    height: 20px;
    width: 20px;
    position: absolute;
    bottom: 0;
    left: 0;
    border-bottom: 1px solid white;
    border-left: 1px solid white;
}
.top-right-border {
    height: 20px;
    width: 20px;
    position: absolute;
    top: 0;
    right: 0;
    border-top: 1px solid white;
    border-right: 1px solid white;
}

/* black & white */
.black {
    border-color: #000;
}
.black h5 {
    color: #000;
}

/*--------------------- home section------------------ */
.home {
    display: block;
    position: relative;
}
header {
    width: 80%;
    display: flex;
    align-items: center;
    padding: 60px 0;
    margin: auto;
}

/* microsoftlogo styling */
header .microsoft-logo {
    width: 30px;
    height: 30px;
    display: flex;
    justify-content: space-between;
    align-items: end;
    flex-wrap: wrap;
    gap: 2px;
    z-index: 2;
}
.microsoft-logo .one,
.microsoft-logo .two,
.microsoft-logo .three,
.microsoft-logo .four {
    width: 14px;
    height: 14px;
    background-color: #fff;
}

header p {
    font-weight: 600;
    color: #fff;
    margin-left: 300px;
}

.home .sub-wallpaper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 425px;
    background-image: url("images/background-1.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: 120%;
    margin: auto;
}

/* overlay text */
.overlay-text {
    width: 100%;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    text-align: center;
}
.overlay-text h1 {
    font-size: 17vw;
    font-weight: 900;
    color: #ffffff3c;
}
.overlay-text h5 {
    color: #fff;
    font-size: 1.3rem;
}

/* ---------------------footer styling ---------------------*/
.footer {
    width: 100%;
    background-color: #000;
    padding: 50px 0 60px 0;
}
.footer .row {
    display: flex;
    width: 80%;
    margin: auto;
    margin-bottom: 40px;
}
.footer .col {
    width: 270px;
}
.footer h3 {
    margin-bottom: 35px;
    color: #fff;
}
.footer ul li a {
    text-decoration: none;
    color: #fff;
    line-height: 25px;
}