:root {
  --light-base: #ffffff;
  --dark-base: #000000;
  --dark-mode: #121212;
  --link-color: #00aaff;
  --transition: all 200ms ease-in-out;
  --clamp-5-xl: clamp(3.5rem, 7.2vw, 4.5rem);
  --opacity: .8;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  list-style: none;
  line-height: 1.5;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    'Noto Sans', 'Liberation Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
    'Segoe UI Symbol', 'Noto Color Emoji';
}

html {
  color-scheme: light;
}

a {
  font-size: inherit;
  font-weight: 500;
  line-height: normal;
  color: inherit;
  text-align: center;
  transition: var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--link-color);
  opacity: var(--opacity);
}

img,
svg {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  display: block;
}

.wrapper-primary {
  max-inline-size: min(100% - clamp(.5rem, 5vw, 8rem), 75rem);
  margin-inline: auto;
}

.header {
  width: 100%;
  background-color: var(--dark-base);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--clamp-5-xl);
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--link-color);
}

.nav__logo:hover,
.nav__logo:focus-visible {
  text-decoration: none;
  opacity: var(--opacity);
}

.nav__menu {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: clamp(0rem, 3vw, 3rem);
}

.nav__link {
  color: var(--light-base);
  transition: var(--transition);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.nav__mobile-btn {
  display: none;
  cursor: pointer;
}

/* tablet 600px  */
@media (max-width: 37.5em) {
  .nav__mobile-btn {
    display: block;
    background-color: var(--link-color);
    padding: 3px;
    border-radius: 3px;
  }

  .nav__menu {
    position: fixed;
    width: 80%;
    top: var(--clamp-5-xl);
    right: 0;
    flex-direction: column;
    justify-content: start;
    min-height: 100dvh;
    transition: var(--transition);
    transform: translateX(100%);
    background-color: var(--dark-mode);
    z-index: -1;
  }

  .nav__menu.active {
    transform: translateX(0%);
  }

  .nav__menu li {
    width: 100%;
  }

  .nav__link {
    display: block;
    padding-block: 1em;
    text-align: center;
  }
}