body {
    margin: 0;
    font-family: "SF Pro Display","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;

    font-size: 15px;
    line-height: 1.6; /*Междустрочный отступ*/
    color: #333;
}

*,
*:before,
*:after {
    box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
} /*Убираем поля вокруг шрифтов*/


/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}


/* Intro */
.intro {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    height: 100vh;

    background: url("../images/iphone12.jpg") center no-repeat;

    -webkit-background-size: cover;
    background-size: cover;
}

.intro__inner {
    width: 100%;
    max-width: 880px;
    margin: 0 auto;

    text-align: center;
}

.intro__title:after {
    content:"";
    display: block;
    width: 60px;
    height: 3px;
    margin: 60px auto;

    background-color: #fff;
} /*Псевдо элемент полоска*/

.intro__title {
    color: #fff;
    font-size: 100px;
    font-weight: 700;
    text-transform: ;

    line-height: 1;
}

.intro__suptitle {
    margin-bottom: 20px;
    font-size: 72px;
    color: #fff;
    font-family: "SF Pro Display","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;
    text-align: center;

}


/*Header*/
.header {
    width: 100%;
    padding-top: 30px; /*Отступ сверху*/

    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header__inner {
    display: flex;
    justify-content: space-between; /*Крайние позиции элементов*/
    align-items: center;
}

.header__logo {
    font-size: 30px;
    font-weight: 700px;
    color: #fff;
}


/* Nav */
.nav {
    font-size: 14px;
    text-transform: uppercase;
}

.nav__link {
    display: inline-block;
    vertical-align: top;
    margin: 0 15px;
    position: relative;

    color: #fff;
    text-decoration: none;

    transition: color .2s linear; /*Плавный переход 0.2с*/
}

.nav__link:after {
    content: "";
    display: block;
    width: 100%;
    height: 3px;

    background-color: #86A5BA;
    /*Цвет полоски*/
    opacity: 0; /*Непрозрачность*/

    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1;

    transition: opacity .2s linear;
    /*Плавный переход цвета 0.2с*/
}

.nav__link:hover {
    color: #86A5BA;
    /*Цвет текста навигации*/
}

.nav__link:hover:after,
.nav__link.active:after {
    opacity: 1; /*Непрозрачность*/
}

.nav__link.active {
    color: #86A5BA;
}

.btn__buy {

    display: inline-block;
    vertical-align: top;
    padding: 7px 25px;

    border: 2px solid #fff;
    font-weight: 700;
    font-size: 16px;

    /*text-transform: uppercase; Вверхний регистр*/
    text-decoration: none;

    transition: background .2s linear, color .2s linear;

    cursor: pointer;
    display: inline-block;
    text-align: center;
    white-space: nowrap;


    line-height: 1.17648;
    letter-spacing: -.022em;
    min-width: 28px;

    border-radius: 18px;
    background: #0071e3;
    color: #fff;
}

.btn__buy:hover {
    background-color: #007efd;
    color: #fff;
}


/* Button */
.btn {
    display: inline-block;
    vertical-align: top;
    padding: 6px 25px;

    border: 3px solid #fff;

    font-size: 14px;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase; /*Вверхний регистр*/
    text-decoration: none;

    transition: background .2s linear, color .2s linear;

}

.btn:hover {
    background-color: #fff;
    color: #333;
}

.btn__buy__buy {
    font-weight: 300;
    font-size: 12px;

    line-height: 1.33337;
    font-weight: 400;
    letter-spacing: -.01em;
    font-family: "SF Pro Text","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;
    min-width: 0px;
}

/* Slider */
.slider {
    width: 100%;

    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 1;
}

.slider__inner {
    display: flex;
    justify-content:space-between; /*Оправдать содержание - пространство между ними */

}

.slider__item {
    width:24%;
    padding: 20px 0;
    position: relative; /*родственник*/

    border-top: 3px solid #fff;
    opacity: .7; /*Прозрачность*/

    font-size: 18px;
    color: #fff;
    text-transform: uppercase; /*Верхний регистр текста Уместность под вопросом!*/

}

.slider__item.active {
    opacity: 1;
}

.slider__item.active:before {
    content: "";
    display: block;
    width: 70px;
    height: 3px;

    background-color: #2B4451;

    position: absolute;
    top: -3px;
    left: 0;
    z-index: 1;

}/*У активного элемента слайдера есть псевдоэлемент before*/


/* Section */
.section {
    padding: 100px 0; /*Отступ*/

}

.section2 {
    padding: 100px 0; /*Отступ*/
    background-color: #000;

}

.section__header {
    width: 100%;
    max-width: 950px;
    margin: 0 auto 40px;
    text-align: center;
}

.section__header3 {
    width: 100%;
    max-width: 950px;
    margin: 0 auto 0px;

    text-align: center;

}

.section__suptitle {
    font-family: "SF Pro Display","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;
    font-size: 24px;
    color: #333;
}

.section__suptitle2 {
    font-family: "SF Pro Display","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;
    font-size: 24px;
    color: #fff;
}
.section__suptitle3 {
    font-family: "SF Pro Display","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;
    font-weight: 500;
    line-height: 1.08349;
    font-size: 46px;
    color: #1d1d1f;
}

.section__title {
    font-size: 30px;
    font-weight: 700;
    color: #333;
    text-transform: uppercase;
}
.section__title2 {
    font-size: 30px;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
}
.section__title3 {
    padding: 10px;
    font-size: 25px;
    font-weight: 400;
    color: #06c;

}

.section__title:after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    margin: 30px auto;

    background-color: #2B4451;
}
.section__title2:after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    margin: 30px auto;

    background-color: #fff;
}

.section__text {
    font-size: 18px;
    color: #999;
}

.section__text2 {
    font-size: 18px;
    color: #909096;
}

/*About*/

.about {
    margin-top: 60px;
    display: flex;
    justify-content: space-between;
}

.about__item {
    width: 200px;
    position: relative;
    background-color: #fff;
}
.about__item2 {
    width: 200px;
    position: relative;
    background-color: #000;
}

.about__item3 {
    width: 200px;
    position: relative;
    background-color: #fff;

}
.about__item:hover .about__img {
    transform: translate3d(-10px, -10px, 0);
}
.about__item2:hover .about__img2 {
    transform: translate3d(-10px, -10px, 0);
}
.about__item:hover .about__img img {
    opacity: .7;
}

.about__item2:hover .about__img2 img {
    opacity: .7;
}

.about__item:hover .about__text {
    opacity: 1;
}

.about__item2:hover .about__text2 {
    opacity: 1;
}


.about__img {
   /* background: linear-gradient(to bottom, #fff,#fff) ; Градиент подложки */
    transition: transform .3s linear;
}

.about__img2 {
    transition: transform .3s linear;
}
.about__img img {
    display: block;
    transition: opacity .1s linear;
}

.about__img2 img {
    display: block;
    transition: opacity .1s linear;
}

.about__text {
    width: 100%;
    font-size: 18px;
    color:;
    font-weight: 500;
    text-align: center;
    opacity: 0;

    position: absolute;
    top: 103%;
    left: 0;
    z-index: 2;
    transform: translate3d(0,-50%, 0);

    transition: opacity .1s linear;
}

.about__text2 {
    width: 100%;
    font-size: 18px;
    color:#fff;
    font-weight: 500;
    text-align: center;
    opacity: 0;

    position: absolute;
    top: 103%;
    left: 0;
    z-index: 2;
    transform: translate3d(0,-50%, 0);

    transition: opacity .1s linear;
}
.about__text3 {
    width: 320px;
    font-size: 20px;
    font-weight: 500;
    color: #1d1d1f;
    padding: 10px;
}

.about__text__price {
    font-size: 15px;
    font-weight: 500;
    color: #1d1d1f;
    padding: 0px;
}

.about__text__specific {
    font-size: 14px;
    letter-spacing: -.016em;
    line-height: 1.42859;
    font-weight: 350;
    font-family: "SF Pro Text","SF Pro Icons","Helvetica Neue","Helvetica","Arial",sans-serif;
    color: #1d1d1f;
    margin: 0px 5px 0 0;
    list-style-type: none;
    padding: 0;
}

.list__item {
    padding: 25px 0 0 0;

}
/*Specifications*/
.specifications {
    background-color: #EFEFEF;
}

.stat {
    display: flex;

}

.stat__item {
    flex: 1 1 0;
    padding: 30px 20px;

    border-left: 1px solid #fff;
    text-align: center;

}

.stat__item:last-child {
    border-right: 1px solid #fff;
}

.stat__img {

    font-size: 72px;
    font-weight: 500;
    text-align: center;

}
.stat__text {
    font-size: 14px;

}

.footer-copyright {
    background-color: #10222e;
    padding-top: 3px;
    padding-bottom: 3px;
    text-align: center;
}

.footer-copyright p {
    margin: 10px;
    color: #ccc;
}