*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }

body{
  font-family: Inter, Arial, sans-serif;
  font-weight: 400;
  color:#1D201F;
  background:#FDFDFD;
  font-optical-sizing: auto;
}

.container{
  width: 100%;
  max-width: 1366px;
  padding: 0 23px;
  margin: 0 auto;
}

/* INTRO */
.materials-page-intro{
  padding: 80px 0 0;
  background: #FDFDFD;
}

.materials-page-intro__top{
  display:flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
}

.materials-page-intro__title{
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  font-weight: 600;
  font-size: 70px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #1D201F;
}

.materials-page-intro__text{
  max-width: 1170px;
  margin-top: 36px;
  font-family: "SF Pro Display", Inter, Arial, sans-serif;
  font-weight: 400;
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: -0.05em;
  color: #1D201F;
}

.materials-page-intro__text--narrow{
  max-width: 980px;
  margin-top: 20px;
}

/* BTN */
.adv-btn{
  display: inline-flex;
  align-items: center;
  gap: 18px;
  text-decoration: none;
  background: #01373E;
  border-radius: 50px;
  padding: 7px 10px 7px 25px;
  color: #fff;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: filter .2s ease, opacity .2s ease, transform .15s ease, background .2s ease, color .2s ease;
}

.adv-btn__text{
  font-family: Inter, Arial, sans-serif;
  font-weight: 400;
  font-size: 20px;
  line-height: 1;
  letter-spacing: -0.03em;
}

.adv-btn__icon{
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #fff;
  color: #01373E;
  transition: background .2s ease, color .2s ease;
  display:flex;
  align-items:center;
  justify-content:center;
  flex: 0 0 42px;
}

.adv-btn__icon svg{
  width: 18px;
  height: 18px;
  display:block;
}

.adv-btn:hover{
  background: #fff;
  color: #01373E;
  box-shadow: 0 0 0 1px #01373E inset;
  filter: none;
}

.adv-btn:hover .adv-btn__icon{
  background: #01373E;
  color: #fff;
}

.adv-btn:active{
  transform: translateY(1px);
}

.adv-btn::after{
  content: "";
  position: absolute;
  top: -20%;
  left: -70%;
  width: 40%;
  height: 140%;
  transform: skewX(-20deg);
  pointer-events: none;
  z-index: 1;
  background: linear-gradient(
    120deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,0.35) 50%,
    rgba(255,255,255,0) 100%
  );
  animation: btnShine 4s infinite;
}

.adv-btn > *{
  position: relative;
  z-index: 2;
}

@keyframes btnShine{
  0%, 70%   { left: -70%; opacity: 0; }
  72%       { opacity: 1; }
  88%       { left: 120%; opacity: 1; }
  100%      { left: 120%; opacity: 0; }
}

.btn-arrow{
  width: 18px;
  height: 18px;
  display: block;
}

/* BENEFITS TABLE */
.materials-benefits{
  padding: 80px 0 0;
}

.materials-benefits__title{
  margin: 0 0 50px;
  max-width: 980px;
  font-family: Inter, Arial, sans-serif;
  font-weight: 600;
  font-size: 70px;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: #333333;
}

.materials-benefits__table{
  width: 100%;
  border-top: 1px solid rgba(0,0,0,0.12);
}

.materials-benefits__row{
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.9fr);
  gap: 40px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(0,0,0,0.12);
  align-items: start;
}

.materials-benefits__head{
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.materials-benefits__num{
  flex: 0 0 auto;
  min-width: 36px;
  font-family: Inter, Arial, sans-serif;
  font-weight: 400;
  font-size: 22px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #8F8F8F;
}

.materials-benefits__name{
  max-width: 520px;
  font-family: Inter, Arial, sans-serif;
  font-weight: 500;
  font-size: 24px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #1D201F;
}

.materials-benefits__text{
  margin: 0;
  max-width: 520px;
  font-family: Inter, Arial, sans-serif;
  font-weight: 400;
  font-size: 20px;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #7B7B7B;
}

/* MATERIALS GRID */
.materials-catalog{
  padding: 120px 0;
  background: #FDFDFD;
}

.materials-catalog__top{
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 50px;
}

.materials-catalog__head{
  max-width: 920px;
}

.materials-catalog__title{
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  font-weight: 600;
  font-size: 70px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #1D201F;
}

.materials-catalog__subtext{
  margin-top: 20px;
  font-family: Inter, Arial, sans-serif;
  font-weight: 400;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #1D201F;
  opacity: .7;
}

.materials-catalog__grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}

.materials-card{
  position: relative;
  min-height: 366px;
  border-radius: 20px;
  overflow: hidden;
  text-decoration: none;
  background-image: var(--bg);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: block;
}

.materials-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.08) 0%, rgba(0,0,0,0.30) 100%);
  transition: opacity .25s ease, transform .35s ease;
}

.materials-card::after{
  content:"";
  position:absolute;
  inset:0;
  background-image: var(--bg);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1);
  transition: transform .55s ease;
  z-index: 0;
}

.materials-card:hover::after{
  transform: scale(1.08);
}

.materials-card:hover::before{
  opacity: .92;
}

.materials-card__cta{
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  min-height: 74px;
  padding: 16px 18px;
  border-radius: 16px;
  z-index: 2;
  background: rgba(253,253,253,0.90);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.materials-card__cta-text{
  font-family: Inter, Arial, sans-serif;
  font-weight: 500;
  font-size: 24px;
  line-height: 1.05;
  letter-spacing: -0.05em;
  color: #1D201F;
}

.materials-card__cta-icon{
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 50%;
  background: #01373E;
  position: relative;
}

.materials-card__cta-icon::before,
.materials-card__cta-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  background:#fff;
  transform: translate(-50%, -50%);
}

.materials-card__cta-icon::before{
  width: 16px;
  height: 2px;
}

.materials-card__cta-icon::after{
  width: 2px;
  height: 16px;
}

/* RESPONSIVE */
@media (prefers-reduced-motion: reduce){
  .adv-btn::after{
    animation: none;
  }

  .materials-card::after{
    transition: none;
  }
}

@media (max-width: 1280px){
  .materials-page-intro__title,
  .materials-benefits__title,
  .materials-catalog__title{
    font-size: 65px;
  }

  .materials-page-intro__text{
    font-size: 21px;
  }
}

@media (max-width: 980px){
  .materials-page-intro{
    padding: 60px 0 0;
  }

  .materials-page-intro__top{
    flex-direction: column;
    align-items: flex-start;
  }

  .materials-page-intro__title,
  .materials-benefits__title,
  .materials-catalog__title{
    font-size: 55px;
  }

  .materials-page-intro__text{
    margin-top: 24px;
    font-size: 18px;
    line-height: 1.3;
  }

  .materials-benefits{
    padding-top: 60px;
  }

  .materials-benefits__title{
    margin-bottom: 36px;
  }

  .materials-benefits__row{
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .materials-benefits__text{
    max-width: 100%;
  }

  .materials-catalog{
    padding: 90px 0;
  }

  .materials-catalog__grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .materials-card{
    min-height: 340px;
  }

  .materials-card__cta-text{
    font-size: 22px;
  }
}

@media (max-width: 768px){
  .container{
    padding-left: 15px;
    padding-right: 15px;
  }

  .materials-page-intro__title,
  .materials-benefits__title,
  .materials-catalog__title{
    font-size: 50px;
  }

  .materials-catalog{
    padding: 60px 0;
  }

  .materials-catalog__top{
    margin-bottom: 32px;
  }

  .materials-catalog__subtext{
    font-size: 18px;
    line-height: 1.25;
  }

  .materials-catalog__grid{
    grid-template-columns: 1fr;
  }

  .materials-card{
    min-height: 300px;
  }

  .materials-card__cta{
    min-height: 68px;
    padding: 14px 16px;
  }

  .materials-card__cta-text{
    font-size: 20px;
  }

  .materials-benefits__name{
    font-size: 18px;
    line-height: 1.15;
  }

  .materials-benefits__text{
    font-size: 16px;
    line-height: 1.2;
  }

  .materials-benefits__num{
    min-width: 28px;
    font-size: 18px;
  }
}

@media (max-width: 480px){
  .materials-page-intro{
    padding: 40px 0 0;
  }

  .materials-page-intro__title,
  .materials-benefits__title,
  .materials-catalog__title{
    font-size: 40px;
  }

  .materials-page-intro__text{
    font-size: 16px;
  }

  .adv-btn{
    width: 100%;
    justify-content: space-between;
  }

  .adv-btn__text{
    font-size: 16px;
  }

  .materials-catalog__subtext{
    font-size: 16px;
  }

  .materials-card__cta-text{
    font-size: 18px;
  }

  .materials-card__cta-icon{
    width: 38px;
    height: 38px;
    min-width: 38px;
  }
}

@media (max-width: 360px){
  .materials-page-intro__title,
  .materials-benefits__title,
  .materials-catalog__title{
    font-size: 35px;
  }
}