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

html{
   scroll-behavior: smooth;
}

ul, h4{
   margin: 0;
   padding: 0;
   list-style: none;
}
li{
   padding-left: 0;
}
a{
   text-decoration: none;
   color: inherit;
}
p{
   margin: 0;
}
body{
   font-family: 'Inter', sans-serif;
   font-weight: 400;
   font-size: 14px;
   line-height: 17px;
   color: #131313;
}

.container{
   max-width: 1200px;
   margin: 0 auto;
}

.header__inner{
   display: flex;
   justify-content: space-between;
   align-items: center;
}

.menu{
   margin-right: 70px;
}

.menu__list{
   display: flex;
}

.menu__item + .menu__item{
   padding-left: 10px;
}

.menu__link{
   text-transform: uppercase;
   padding: 43px 20px;
   transition: all .3s;
}

.menu__link:hover{
   background-color: #131313;
   color: #fff;
}

.bike{
   padding: -100px 0 100px;
   /* верх две стороны низ */
   margin-bottom: 150px;
}

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

.bike__column-slider{
   flex-basis: 630px;
   margin-left: 30px;
   max-width: 630px;
   /* важно для слайдера */
}

.bike__title{
font-weight: 700;
font-size: 64px;
line-height: 77px;
margin: 60px 0 5px;
/* вверху-60 слева/справа-0 внизу-5 */
}

.bike__subtitle{
   margin: 0 0 60px;
   font-weight: 400;
   font-size: 32px;
   line-height: 39px;
   color:#6f6f6f;

}

.bike__text{
   max-width: 420px;
   margin-bottom: 20px;
}

.bike__link{
   margin-top: 80px;
   display: inline-block;
   /* тк ссылки строчный тип */
   background-color: #131313;
   color: #fff;
   padding: 28px 81px;
   text-transform: uppercase;
   font-style: 20px;
   line-height: 24px;
   letter-spacing: 1.1em;
   transition: all .3s;
}

.bike__link:hover{
   background-color: #ff4040;
}

.bike-slider .slick-dots{
   right: 0;
   top: 50px;
}

.slick-dots{
   position: absolute;
}

.slick-dots li+li{
   padding-top: 10px;
}

.slick-dots button{
   font-size: 0;
   padding: 0;
   border: none;
   background-color: #131313;
   width: 2px;
   height: 25px;
   border-radius: 7px;
   cursor: pointer;
}

.slick-dots button:hover,
.slick-active button{
   background-color: #ff4040;
}

.bike__list{
   margin-top: 25px;
   display: flex;
   justify-content: space-around;
}

.bike__list-item{
   min-width: 160px;
   display: flex;
   flex-direction: column;
   align-items: center;
   text-align: center;
   min-height: 58px;
}

.bike__list-num{
   font-weight: 700;
   text-transform: uppercase;
}

.bike__list-text{
   font-weight: 400;
   font-size: 12px;
   line-height: 15px;
   margin: auto 0;
}

.info{
   margin-bottom: 150px;
}

.info__inner{
   display: flex;
}

.info__img{
   margin-right: 60px;
   flex-basis: 570px;
   object-fit: cover;
}

.info__list{
   flex-basis: 490px;
}

.info__item+.info__item{
   padding-top: 50px;
}

.info__item-title{
font-size: 16px;
line-height: 19px;
margin: 0 0 10px;
text-transform: uppercase;
}

.info__item-text{
   min-width: 450px;
}

.characteristics{
   margin-bottom: 150px;
}

.characteristics__head{
   margin: 0 0 40px;
font-size: 16px;
line-height: 19px;
text-transform: uppercase;
}

.characteristics__inner{
   display: flex;
}

.characteristics__img{
   align-self: center;
}

.characteristics__items{
   flex-basis: 570px;
   margin-right: 60px;
}

.characteristics__list + .characteristics__list{
   padding-top: 30px;
}

.characteristics__title{
   padding: 2px 0 3px;
   text-transform: uppercase;
   background-color: #131313;
   color: #fff;
   font-weight: 700;
}

.characteristics__line{
   display: flex;
   padding-top: 5px;
}

.characteristics__name{
   flex-basis: 285px;
   padding-right: 20px;
}

.characteristics__descr{
   flex-basis: 285px;
}

.slider{
   margin-bottom: 50px;
}

.slider__items .slick-dots{
   top: 0;
   left: 0;
}

.slider__item{
   padding-left: 50px;
}

.price{
   margin-bottom: 100px;
}

.price__inner{
   position: relative;
}

.form{
   max-width: 420px;
}

.form__title{
   margin-bottom: 40px; 
   font-size: 16px;
   line-height: 19px;
   text-transform: uppercase;
}

.form__text{
   min-width: 300px;
   margin-bottom: 30px;
}

.form__input-name,
.form__input-phone{
   width: 100%;
   border: none;
   border-bottom: 1px solid #131313;
   padding-bottom: 10px;
   margin-bottom: 20px;
}

.form__input-name::placeholder,
.form__input-phone::placeholder,
.form__input-text{
   color:#6f6f6f;
   opacity:0.5;
}

.form__input-text{
   margin-bottom: 10px;
}

.form__label-box{
   display: flex;
   margin-bottom: 50px;
}

.form__label + .form__label{
   margin-left: 23px;
}

.form__input-radio{
   position: absolute;
   width: 0;
   height: 0;
   overflow: hidden;
   clip: rect( 0 0 0 0);
}

.form__input-radio:checked ~ .form__bike{
   display: block;
}

.form__bike-price{
   font-size: 32px;
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   width: 220px;
   height: 100px;
   display: flex;
   justify-content: center;
   align-items: center;
   border: 1px solid #ff4040;
   border-radius: 50%;
   transform: translateX(-50%);
}

.form__bike-price::after{
   content: "";
   position: absolute;
   width: 220px;
   height: 100px;
   border: 1px solid #ff4040;
   border-radius: 50%;
   top: 12px;
   left: 0;
}

.form__bike{
   display: none;
   position: absolute;
   right: 0;
   top: 0;
}

.form__radio-style{
   border-radius: 30px;
   width: 80px;
   height: 12px;
   cursor: pointer;
}

.form__radio-style--gray{
   background: #6f6f6f;
}

.form__radio-style--white{
   background: #fff;
   border: 1px solid #6f6f6f;
}

.form__radio-style--red{
   background:  #ff4040;
}

.form__btn{
   background: #131313;
   padding: 28px 81px;
   border: none;
   color: #fff;
   text-transform: uppercase;
   font-size: 20px;
   line-height: 24px;
   letter-spacing: 1.1em;
   cursor: pointer;
   transition: all .3s;
}

.form__btn:hover{
   background-color: #ff4040;
}

.footer{
   background-color: #131313;
}

.footer__inner{
   display: flex;
   justify-content: space-between;
   align-items: center;
   height: 100px;
}

.footer__link{
   color: #fff;
   text-decoration: underline;
   font-size: 12px;
   line-height: 15px;
}

.footer__social-link + .footer__social-link{
   margin-left: 26px;
}

.footer__contacts{
   color: #fff;
   font-size: 12px;
   line-height: 15px;
}

.footer__contacts-link{
   display: flex;
   align-items: center;
}

.footer__contacts-link + .footer__contacts-link{
   margin-top: 10px;
}

.footer__contacts-img{
   margin-right: 10px;
}

@media(max-width:1140px){
   .form__bike-img{
      width: 500px;
   }
   .form__bike{
      top: 45px;
   }
   .menu__link,
   .bike__link{
      transition: all 0s;
   }
   .menu__link:hover{
      background-color: #fff;
      color: #131313;
   }
   .bike__link:hover{
      background-color:#131313;
      color:  #fff;
   }
}

@media(max-width:1110px){
   .price{
      margin-bottom: 50px;
   }
   .bike__inner{
      flex-wrap: wrap;
   }
   .bike__text{
      max-width: 100%;
   }
   .bike{
      padding: 0;
      margin-bottom: 50px;
   } 
   .characteristics{
      margin-bottom: 50px;
   }
   .slider__img{
      object-fit: cover;
      height: 400px;
   }
   .bike__link{
      margin-top: 30px;
   }
   .bike__column{
      margin-bottom: 30px;
   }
   .bike__column-slider{
      max-width: 100%;
      margin-left: 0;
   }
   .info__img{
      display: none;
   }
   .info__list{
      flex-basis: 100%;
   }
   .info__item-text{
      min-width: 100%;
   }
   .info{
      padding-top: 0;
      margin-bottom: 50px;
   }
}

@media(max-width:991px){
   .menu{
      margin-right: 0;
   }
   .characteristics__inner{
      flex-wrap: wrap;
   }   
   .characteristics__img{
      order: -1;
      width: 100%;
      margin-bottom: 30px;
   }
   .characteristics__items {
      flex-basis: 100%;
      margin-right: 0;
  }
  .characteristics__name{
   flex-basis: 50%;
  }
  .characteristics__descr{
   flex-basis: 50%;
  }
  .form__label-box{
   margin-bottom: 300px;
  }
  .form__bike{
   top:auto;
   bottom: 85px;
   left: 0;
   right: auto;
  }
  .form__bike-img{
   width: 430px;
  }
  .form__bike-price{
   right: -20%;
   transform: translateX(100%);
   left: auto;
   top: 0;
  }
}

@media(max-width:780px){
   .form__bike-price{
      right: 0;
      top: -55px;
      transform: translateX(50%);
     }
}

@media(max-width:670px){
   .bike__title {
      font-size: 44px;
      line-height: 57px;
      margin: 30px 0 5px;
  }
  .bike__subtitle {
   margin: 0 0 30px;
   font-size: 22px;
   line-height: 29px;
  }
  .bike__list{
   flex-wrap: wrap;
  }
  .bike__list-item {
   width: 50%;
   margin-bottom: 15px;
  }
}

@media(max-width:640px){
   .bike{
      margin-bottom: 0;
   }
   .header__inner{
      display: block;
      text-align: center;
   }
   .menu{
      margin-top: 50px;
   }
   .menu__list{
      justify-content: space-evenly;
   }
   .menu__item + .menu__item{
      padding-left: 0;
   }   
   .menu__link{
      padding: 25px 20px;
   }
   .info__item + .info__item{
      padding-top: 25px;
   }
   .slider__img{
      height: 300px;
   }
   .slider__item{
      padding-left: 10px;
   }
}

@media(max-width:580px){
.form__bike-price {
   right: auto;
   top: 50px;
   transform: translateX(0%);
   left: 0;
   display: inline-block;
   font-size: 18px;
   border: none;
   width: 100%;
   border-radius: 0;
   height: auto;
   }
   .form__bike-price span{
      background-color: #131313;
      color: #fff;
      display: inline-block;
      padding: 3px;
   }
   .form__bike-price::after{
      display: none;
   }
   .footer__inner{
      display:block;
      height: auto;
      padding: 15px 0;
      text-align: center;
   }
   .footer__social{
      padding: 15px 0;
   }
   .footer__contacts{
      display: flex;
      flex-direction: column;
      align-items: center;
   }
}

@media(max-width:460px){
   .menu__list{
      justify-content: space-between;
   }
   .menu__link{
      padding: 25px 0px;
   }
   .bike__link,
   .form__btn{
      padding: 15px;
      letter-spacing: .9em;
   }
   .slider{
      display: none;
   }
   .form__bike{
      bottom: 50px;
   }
   .form__bike-img{
      width: 270px;
   }
   .form__label-box {
      margin-bottom: 200px;
  }
  .price__inner{
   text-align: center;
  }
  .form__text{
   max-width: 100%;
  }
  .form__label-box {
   justify-content: center;
   }
   .form__bike{
      right: 0;
   }
}

@media(max-width:340px){
   .menu{
      margin-top: 30px;
   }
   .menu__link{
      font-size: 12px;
   }
}