:root {
  --color-white: hsl(0, 100%, 100%);
  --color-grey-500: hsl(0, 0%, 63%);
  --color-grey-800: hsl(0, 0%, 27%);
  --color-black: hsl(0, 0%, 0%);
}


/* styles reset */


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

button, a {
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  cursor: pointer;
}

img {
  display: block;
}


/* default styles */

html {
  scroll-behavior: smooth;
}

body {
  font-family: "league spartan";
  line-height: 1.5rem;
  color: var(--color-grey-500);
  font-weight: 500;
}

h1 {
  font-weight: 700;
  color: var(--color-black);
  font-size: clamp(2.3rem, 5vw, 3rem);
  line-height: clamp(2.5rem, 5vw, 2.76rem);
}

h2 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.5ch;
  color: var(--color-black);
}

a {
  text-decoration: none;
  color: var(--color-black);
  font-weight: 600;
}


/* components */


header {
  position: absolute;
  display: flex;
  padding: 2rem;
  padding-top: 2.25rem;
  z-index: 1;

  nav {
    display: none;
  }

  #company-logo {
    position: absolute;
    left: 50vw;
    transform: translateX(-50%);
  }
}

#nav-menu-small-devices {
  position: absolute;
  inset: 0 0 auto 0;
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: 5;

  nav {
    position: relative;
    display: flex;
    padding: 2rem;
    gap: 2rem;
    z-index: 5;
    background-color: var(--color-white);

    button {
      width: 20px;
      display: grid;
      place-items: center;
      margin-right: auto;
    }
  }
  
  &.show {
    opacity: 1;
    transition: opacity 0.25s ease;
  }

  #background {
    position: fixed;
    inset: 0;
    background-color: hsl(0, 0%, 0%, 0.5);
    z-index: 3;
  }
  
}

.slider-container {
  position: relative;
}

.slider {
  display: flex;
  overflow-x: hidden;
  scroll-behavior: smooth;

  & > picture > img {
    inline-size: 100vw;
  }

  .slider-buttons {
    --slider-buttons-size: clamp(6rem, 11vw, 7rem);
    position: absolute;
    inset: auto 0 0 auto;
    inline-size: var(--slider-buttons-size);
    aspect-ratio: 2 / 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    
    button {
      display: grid;
      background-color: var(--color-black);
      border: none;
      place-items: center;
      transition: background-color 0.25s ease;

      &:hover {
        background-color: var(--color-grey-800);
      }

      img {
        inline-size: 0.6rem;
      }
    }
  }
}

main > div > article, main > article {
  display: grid;
  padding: 1.5rem;
  padding-block: 3rem;
  gap: 1rem;

  .text-container {
    opacity: 0;
    display: grid;
    gap: 1rem;
  }
}

.text-container:not(.active) {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.text-container.active {
  opacity: 1;
  transition: opacity 0.5s ease;
}

.link-button {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding-block: 1.5rem;
  transition: gap 0.25s ease;

  & > button {
    font-weight: 600;
    letter-spacing: 1.25ch;
    &:hover, &:focus {
      color: var(--color-grey-500);
    }
    transition: color 0.25s ease;
  }

  &:has(button:hover), &:has(button:focus) {
    gap: 2rem;
  }
}


/* larger screens */

@media ( min-width: 800px ) {
  a {
    position: relative;
  }
  a::after {
    content: "";
    position: absolute;
    inset: auto 0 -0.2rem 0;
    height: 0.1rem;
    transform: scaleX(0.1);
    background-color: var(--color-white);
    opacity: 0;
    transition: all 0.15s ease;
  }

  a:hover::after {
    transform: scaleX(0.75);
    opacity: 1;
  }

  header {
    align-items: center;
    gap: 2rem;

    #open-menu-button {
      display: none;
    }

    #company-logo {
      transform: translateX(0);
      position: relative;
      left: 0;
    }

    nav {
      display: flex;
      align-items: center;
      gap: 2rem;
      a {
        color: var(--color-white);
      }
    }
  }
  #main-part {
    --max-inline-img-size: 60vw;
    display: grid;
    grid-template-columns: 1fr 1fr;
    .slider-container > .slider > picture > img {
      inline-size: auto;
    }

    .slider-container {
      max-inline-size: var(--max-inline-img-size);
    }
  }

  main > div > article {
    align-content: center;
  }

  .slider > .slider-buttons {
    inset: auto calc( -1 * var(--slider-buttons-size)) 0 auto;
  }

  #second-part {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    grid-template-areas: "c d e";

    img {
      object-fit: cover;
      block-size: 100%;
    }
  }
}

@media ( min-width:1100px ) {
  #main-part {
    .slider-container > .slider > picture > img {
      max-inline-size: var(--max-inline-img-size);
      inline-size: 100vw;
    }

    .slider-container {
      max-inline-size: var(--max-inline-img-size);
    }
  }

  main > div > article {
    padding-block: 2.5rem;
  }

  #main-text-content {
    justify-content: center;
    & > div {
      max-inline-size: 25rem;
    }
  }
}


/* utilitys */


.no-styles-button {
  border: none;
  background: transparent;
}

.full-width-img {
  inline-size: 100%;
}