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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--container-width), calc(100% - 2rem));
  margin-inline: auto;
}

.floating-header {
  position: sticky;
  top: 1rem;
  z-index: 30;
  padding-bottom: 0.7rem;
}

.floating-header__inner {
  min-height: 62px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  padding: 0.5rem 1rem;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-radius: 16px;
  box-shadow: var(--shadow-2xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.hero-title {
  min-height: min(85vh, 720px);
  display: grid;
  place-items: center;
  margin-top: -4.4rem;
  padding: 8rem 0 6rem;
  position: relative;
  overflow: hidden;
  background: 
    radial-gradient(at 27% 37%, hsla(144, 35%, 25%, 0.4) 0px, transparent 50%),
    radial-gradient(at 97% 21%, hsla(142, 32%, 32%, 0.3) 0px, transparent 50%),
    radial-gradient(at 52% 99%, hsla(138, 28%, 18%, 0.5) 0px, transparent 50%),
    radial-gradient(at 10% 29%, hsla(143, 38%, 22%, 0.45) 0px, transparent 50%),
    radial-gradient(at 97% 96%, hsla(140, 30%, 28%, 0.35) 0px, transparent 50%),
    radial-gradient(at 33% 50%, hsla(144, 33%, 20%, 0.4) 0px, transparent 50%),
    radial-gradient(at 79% 53%, hsla(142, 36%, 26%, 0.38) 0px, transparent 50%),
    linear-gradient(180deg, var(--color-hero-primary) 0%, var(--color-hero-secondary) 100%);
}

.hero-title__bg {
  position: absolute;
  inset: 0;
  background-image: url("../img/von.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  mix-blend-mode: soft-light;
}

.catalog {
  padding: 8rem 0;
  background: #f4f7fb;
}

.text-block {
  padding: 8rem 0;
  background: #eef3f8;
}

.gallery-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.why-us {
  padding: 10rem 0;
  background-image: linear-gradient(rgba(15, 23, 42, 0.75), rgba(15, 23, 42, 0.75)),
    url("../img/1-img.jpg");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.benefits {
  padding: 8rem 0;
  background: #f4f7fb;
}

.contacts {
  padding: 8rem 0;
  background: #eef3f8;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
}

.footer {
  background: #000000;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__inner {
  min-height: 118px;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 980px) {
  .catalog,
  .text-block,
  .benefits,
  .contacts {
    padding: 5rem 0;
  }

  .why-us {
    padding: 6rem 0;
    background-attachment: scroll;
  }

  .gallery-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .benefits-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--container-width), calc(100% - 1.2rem));
  }

  .floating-header {
    top: 0.6rem;
  }

  .floating-header__inner {
    min-height: 56px;
    border-radius: 12px;
    padding: 0.4rem 0.7rem;
  }

  .hero-title {
    min-height: 65vh;
    padding: 6rem 0 4rem;
  }

  .catalog,
  .text-block,
  .benefits,
  .contacts {
    padding: 3.5rem 0;
  }

  .why-us {
    padding: 4rem 0;
  }

  .gallery-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.65rem;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .gallery-3 {
    margin-top: 2.5rem;
  }

  .benefits-grid {
    margin-top: 2.5rem;
  }
}