* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

:root {
    --primary-color: rgb(255, 72, 0);
    --secondary-color: rgb(49, 49, 49);
}

header {
    background: var(--secondary-color);
    height: 15vh;
    margin-bottom: 100px;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.logo {
    font-size: 1.7em;
    color: white;
    font-weight: 900;
}

.head {
    color: var(--primary-color);
}

nav ul {
    display: flex;
    gap: 40px;
    align-items: center;
}

nav ul li a {
    color: white;
    font-weight: 300;
    font-size: 0.8em;
}

.btn {
    background: var(--primary-color);
    width: 140px;
    height: 46px;
    border: none;
    border-radius: 30px;
    color: white;
    font-weight: 400;
    transition: .4s;
}

.btn:hover {
    background: white;
    color: var(--primary-color);
    font-weight: 700;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    transition: 0.3s;
}

.about {
    height: auto;
    padding: 10vh 0 10vh 0;
}

.about-us {
    height: 30vh;
    width: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.text {
    width: 30%;
    text-align: center;
}

.text-1 {
    width: 60%;
    text-align: center;
}

.text-1 h1 {
    font-size: 3.4em;
    margin-bottom: 50px;
}

.text-1 p {
    text-align: left;
    line-height: 30px;
}

.back {
    height: 30vh;
    padding: 0 0 10vh 0;
    background: linear-gradient(rgba(0, 0, 0, 0.805), rgba(0, 0, 0, 0.611), rgba(0, 0, 0, 0.382)), url(img/adi-goldstein-EUsVwEOsblE-unsplash.jpg);
    background-position: center;
    background-size: cover;
    margin-top: 100px;
    margin-bottom: 100px;
}

.choose {
    height: auto;
    padding: 0 0 10vh 0;
}

.choose-us {
    height: 50vh;
    width: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
}

.text-2 {
    width: 50%;
}

.text-2 p {
    line-height: 30px;
}

.text-3 {
    width: 20%;
    text-align: center;
}

.btn2 {
    background: var(--primary-color);
    width: 140px;
    height: 46px;
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 400;
    transition: .4s;
}

footer {
    height: auto;
    padding: 5vh 0 10vh 0;
    background: var(--secondary-color);
}

.footer {
    height: 40vh;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    background: var(--secondary-color);
}

.link1 p {
    color: white;
    width: 250px;
}

.link2 h6 {
    color: white;
    font-size: 1.3em;
    font-weight: 700;
    margin-bottom: 15px;
}

.link2 ul li {
    margin-bottom: 10px;
}

.link2 ul li a {
    color: white;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
}

.link {
    display: flex;
    gap: 10px;

}

.link img {
    height: 20px;
}

.link3 {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.link3 h6 {
    font-size: 1.2em;
    font-weight: 600;
    color: white;
}

.link p {
    color: white;
    font-size: 0.9em;
}

@media screen and (min-width:720px) {
    .footer {
        height: 55vh;
    }

    .link1 p {
        font-size: 0.9em;
        margin-bottom: 20px;
    }
}

@media screen and (max-width:720px) {
    .logo {
        font-size: 1.5em;
    }

    nav ul {
        gap: 20px;
    }

    .choose {
        margin-bottom: 80px;
    }

    .footer {
        text-align: center;
        justify-content: center;
        gap: 20px;
        height: 80vh;
    }

    .link1 p {
        font-size: 0.9em;
        margin-bottom: 20px;
    }
}

@media screen and (max-width:650px) {
    nav ul {
        position: absolute;
        top: 70px;
        right: 0;
        background: teal;
        width: 100%;
        height: 0;
        overflow: hidden;
        flex-direction: column;
        align-items: center;
        transition: height 0.3s ease-in-out;
    }

    nav ul.active {
        height: 200px;
    }

    .hamburger {
        display: flex;
    }
}

@media screen and (max-width:550px) {
    .about {
        padding: 10dvh 0 10dvh 0;
    }

    .about-us {
        margin-top: 100px;
        margin-bottom: 100px;
        flex-direction: column;
    }

    .text {
        width: 100%;
    }

    .text-1 {
        width: 80%;
    }

    .choose {
        padding: 10dvh 0 10dvh 0;
    }

    .choose-us {
        margin-top: 200px;
        margin-bottom: 100px;
        flex-direction: column;
    }

    .text-2 {
        width: 80%;
    }

    .text-3 {
        width: 100%;
    }

    .footer {
        height: 120vh;
        align-items: center;
        justify-content: center;
        text-align: center;
    }
}