:root {
  --page-padding-inline: 1rem;
  --header-padding-block: 0.75rem;
  @media (width > 600px) { 
    --page-padding-inline: 1.5rem;
    --header-padding-block: 1.5rem;
  }
  @media (width > 900px) {
    --page-padding-inline: 3rem;
  }
  --heading-gap: 1.25rem;
  --max-content-width: 30rem;
  --layout-max-width: 1000px;

  --color-purple: hsl(256, 100%, 80%);
  --color-purple-light: hsl(256, 100%, 92%);
  --color-purple-dark: hsl(256, 100%, 65%);
  --color-teal: rgb(149, 232, 200);
  --color-teal-light: rgb(191, 237, 220);
  --color-black: rgb(29, 28, 29);
  --color-black-light: rgb(90, 94, 90);
  --color-white: rgb(234, 229, 228);
  --color-white-light: rgb(246, 244, 244);
}

html {
  font-size: 16px;
  font-family: system-ui, sans-serif;
  background-color: var(--color-purple);
  color: var(--color-black);
}

body {
  margin: 0;
}

img {
  width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

.btn {
  --font-size: 0.75rem;
  
  font-size: var(--font-size);
  font-family: "Archivo Black", sans-serif;
  text-transform: uppercase;
  text-decoration: none;
  padding-inline: 1rem;
  padding-block: 0.5rem;
  color: var(--color-black);
  background: transparent;
  transition: background-color 100ms linear;
  border: 2px solid var(--color-black);
  border-radius: 999px;
  min-width: 7rem;
}

.btn-purple {
  background-color: var(--color-purple);
  &:hover {
    background-color: var(--color-purple-light);
  }
}

.btn-teal {
  background-color: var(--color-teal);
  &:hover {
    background-color: var(--color-teal-light);
  }
}

header {
  --color-bg: var(--color-purple);
  
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--header-padding-block) var(--page-padding-inline);
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-black);
  .logo {
    max-width: 2rem;
    @media (width > 500px) {  max-width: 3rem; }
    @media (width > 900px) {  max-width: 4rem; }
    position: fixed;
    top: var(--header-padding-block);
    right: var(--page-padding-inline);
    z-index: 999;
  }
}

#nav-button {
  display: none;
  border: none;
  background: transparent;
  padding: 0.25rem;
  cursor: pointer;
  z-index: 999;
}

.menu-icon {
  --width: 32px;
  --height: 24px;
  --bar-height: 4px;
  --center: calc(var(--height) / 2 - var(--bar-height) / 2);
  --bottom: calc(var(--height) - var(--bar-height));

  width: var(--width);
  height: var(--height);
  position: relative;
  div {
    height: var(--bar-height);
    width: var(--width);
    background-color: #000;
    position: absolute;
    transform-origin: center;
    transition:
      top 200ms ease-in 200ms,
      transform 200ms ease-in,
      opacity 0ms 200ms;
  }
  div:nth-child(1) { top: 0; }
  div:nth-child(2) { top: var(--center); }
  div:nth-child(3) { top: var(--bottom); }
}

#nav-button[aria-expanded="true"] .menu-icon {
  div {
    transition:
      top 200ms ease-in,
      transform 200ms ease-in 200ms,
      opacity 0ms 200ms;
  }
  div:nth-child(1) {
    transform: rotate(45deg);
    top: var(--center);
  }
  div:nth-child(2) {
    opacity: 0;
  }
  div:nth-child(3) {
    transform: rotate(-45deg);
    top: var(--center);
  }
}

nav {
  a {
    font-family: "Cutive Mono", Courier, monospace;
    font-size: 20px;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-black);
    transition: border-color 100ms linear;
    border-bottom: 2px solid transparent;
    &:hover {
      border-color: var(--color-purple-light);
    }
    &:visited {
      color: inherit;
    }
  }
  ul {
    display: flex;
    margin: 0;
    padding: 0;
    gap: 5vw;
  }
}

@media (max-width: 35rem) {
  #nav-button {
    display: block;
  }
  
  nav {
    background-color: var(--color-white);
    position: fixed;
    inset: 0 0 0 0;
    transform: translateX(100%);
    transition: transform 200ms ease-out;
    ul {
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-block-start: 20vh;
      gap: 4rem;
    }
    a {
      font-family: "Archivo Black", sans-serif;
      font-size: 2.5rem;
      border-width: 4px;
    }
  }
  
  nav[data-visible="true"] {
    transform: translateX(0%);
  }
}

main {
  padding-top: calc(36px + 2 * var(--header-padding-block));
}

footer {
  background-color: var(--color-black-light);
  padding-block-start: 2rem;
  padding-block-end: 1rem;
  padding-inline: var(--page-padding-inline);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  .logo {
    max-width: 7rem;
  }
  .instagram img {
    max-width: 1.25rem;
  }
  a, a:visited {
    font-size: 14px;
    color: var(--color-white);
  }
  @media (min-width: 600px) {
    padding-block-start: 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    .email {
      justify-self: center;
    }
    .instagram {
      justify-self: end;
    }
  }
}


.pill {
  --heading-gap: 1.25rem;
  
  font-size: 1rem;
  margin-block: 2rem;
  border: 1px solid black;
  border-radius: 999px;
  text-transform: uppercase;
  padding: 0.25rem var(--heading-gap);
}

.number {
  --size: 1.8em;
  --bg-color: var(--color-teal-light);
  
  font-size: 20px;
  font-family: "Archivo Black", sans-serif;
  border: 2px solid var(--color-black);
  border-radius: 9999px;
  width: var(--size);
  min-width: var(--size);
  height: var(--size);
  min-height: var(--size);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-color);
}