* {
    font-family: "Roboto", serif;
    box-sizing: border-box;
}

.fly-button {
    position: fixed;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: block;
    font-size: 20px;
    font-weight: 900;
    padding: 20px;
    text-transform: uppercase;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    letter-spacing: 2px;
    background: #ffcf30;
    animation: pulse 2s infinite;
    z-index: 999;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0px 6px #ffcf30;
    }
    50% {
        box-shadow: 0 0 15px #ffcf30;
    }
    100% {
        box-shadow: 0 0px 6px #ffcf30;
    }
}

.section-title {
    text-align: center;
    font-size: 50px;
    padding: 0;
    margin: 20px 0 0 0;
}

.timer {
    display: flex;
    justify-content: space-around;
    font-size: 70px;
    text-shadow: 5px 5px 3px #000;
}

body {
    width: 80vw;
    margin: 0 auto;
    padding: 0;
}

main {
    width: 100%;
}

a {
    text-decoration: none;
    color: #000;
}

.navigation {
    width: 80vw;
    height: 50px;

    padding: 0 50px;
    margin: 0 auto;

    position: fixed;
    top: 0;

    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style-type: none;

    border-radius: 0 0 20px 20px;

    font-size: 20px;
    text-transform: uppercase;

    z-index: 900;
    background: #000000ba;
}

ul a {
    color: #fff;
}


/* SCREEN */

.shadow {
    position: absolute; 
    min-width: 100%; 
    min-height: 100%; 
    border-radius: 0 0 20px 20px;
    background: #000000a3;
}

.wrap {
    z-index: 100;
}

.screen {
    position: relative;
    width: 100%;
    height: 90dvh;
    display: flex;
    justify-content: space-around;
    border-radius: 0 0 20px 20px;
    background: url(../img/main_1.jpg)
    center center/cover no-repeat;
}

.screen .wrap {
    margin-top: 80px;
    font-size: 35px;
    color: #fff;
}

.screen h1, .screen h2, .screen p {
    margin: 10px 0;
    text-align: center;
    text-shadow: 5px 5px 3px #000;
}

.screen h2 {
    font-size: 30px;
}

.sale {
    font-size: 20px;
    font-weight: 900;
}

.product-img {
    height: 200px;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 0 30px #fff);
}

/* CATALOG */

.catalog {
    width: 100%;
}

.catalog-wrap {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.product-card {
    position: relative;
    width: 300px;
    height: 350px;
    margin: 20px 0 0 0;
    padding: 120px 0;
    border: 2px solid #000;
    border-radius: 20px;
    color: #000;
    background: linear-gradient(#fff, #000);
}

.product-card img {
    width: 100%;
    height: 70%;
}

.product-card p {
    border-radius: 0 0 20px 20px;
    width: 100%;
    position: absolute;
    background: #ffffffb0;
    font-size: 30px;
    margin: 0;
    bottom: 0;
    left: 0;
    text-align: center;
}

/* INSTALLMENT */

.installment {
    width: 100%;
    height: 500px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    border-radius: 20px;
    margin: 20px 0;
    color: #fff;
    background: #000000;
}

.installment-wrap {
    width: 50%;
}

.installment-wrap h2{
    font-size: 40px;
}

.installment-wrap p{
    font-size: 40px;
}

.installment img {
    width: 50%;
}

/* REVIEWS */

.reviews {
    width: 100%;
}

.reviews-wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.review-card {
    width: 100%;
    margin: 20px 0 0 0;
    padding: 20px;
    display: flex;
    align-items: center;
    border-radius: 20px;
    background: linear-gradient(#b6b6b6, #626262);
}

.review-card h3 {
    font-size: 30px;
}

.review-card p {
    font-size: 25px;
    width: 70%;
}

.img-wrap {
    min-width: 200px;
    height: 200px;
    display: flex;
    margin: 0 20px 0 0;
    border-radius: 20px;
    overflow: hidden;
    background: #ffcf30;
}

.reviews-wrap img {
    height: 200px;
}

.form {
    width: 50%;
    margin: 20px auto;
    text-align: center;
    padding: 10px;
}

.form img {
    width: 50%;
}

.form__input {
    width: 100%;
    margin-top: 20px;
    padding: 0 0 5px 10px;
    font-size: 16px;
    border: none;
    
    border-bottom: 1px solid #D9D9D9;
    background: none;
    outline: none;
}

form h2{
    margin-bottom: 100px;
}

form button {
    font-size: 20px;
    font-weight: 900;
    padding: 20px;
    text-transform: uppercase;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    letter-spacing: 2px;
    background: #ffcf30;
    animation: pulse 2s infinite;
    margin: 10px auto;
}

/* FOOTER */

footer {
    width: 100%;
    margin: 20px 0 0 0;
    padding: 20px 20px 150px 20px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    font-size: 20px;
    justify-content: space-between;
    border-radius: 20px 20px 0 0;
    color: #fff;
    background: #000;
}

footer a {
    color: #fff;
}

@media screen and (min-width: 100px) and (max-width: 800px) {
    body {
        width: 100vw;
    }

    .section-title {
        font-size: 30px;
    }

    .fly-button {
        font-size: 15px;
        padding: 10px;
    }

    .navigation {
        width: 100vw;
        padding: 0 5px;
        font-size: 15px;
    }

    .screen .wrap {
        margin-top: 60px;
    }

    .product-img {
        height: 130px;
    }

    .screen h1, .screen h2 {
        font-size: 25px;
    }

    .timer {
        font-size: 30px;
    }

    .catalog-wrap {
        justify-content: space-around;
    }

    .product-card img {
        width: 70%;
        display: block;
        margin: 0 auto;
    }

    .product-card p {
        font-size: 25px;
    }

    .installment {
        height: auto;
        flex-direction: column;
    }

    .installment-wrap {
        width: 100%;
        text-align: center;
    }

    .installment-wrap h2 {
        font-size: 30px;
        margin: 20px 0;
    }

    .installment-wrap p {
        font-size: 25px;
    }

    .installment img {
        width: 80%;
        margin: 0 auto;
    }

    .review-card {
        flex-direction: column;
    }

    .review-card p {
        font-size: 25px;
        width: 100%;
    }

    .form {
        width: 100%;
    }

    footer {
        flex-direction: column;
    }

    footer a, footer p {
        margin: 20px 0;
        font-size: 25px;
        text-align: center;
    }
}