@import "https://fonts.googleapis.com/css2?family=Lato:wght@100;300;400;700;900&display=swap";
@import "https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap";
@import "https://fonts.googleapis.com/css2?family=Source+Code+Pro:wght@400;600&display=swap";

:root {
  --clr-mono-000: #fff;
  --clr-mono-100: #f0f0f0;
  --clr-mono-700: #30363d;
  --clr-mono-800: #161b22;
  --clr-mono-900: #0a0b10;
  --clr-prime-300: #93c5fd;
  --clr-prime-400: #60a5fa;
  --clr-prime-500: #3b82f6;
  --clr-prime-600: #2563eb;
  --clr-prime-500-rgb: 59 130 246;
  --clr-green-500: #7ee787;
  --clr-green-500-rgb: 126 231 135;
  --clr-purple-500: #a371f7;
  --clr-purple-500-rgb: 163 113 247;
  --clr-amber-500: #f2b94b;
  --clr-amber-500-rgb: 242 185 75;
  --clr-card-900: #0d1117;
  --clr-card-800: #111827;
  --clr-card-bdr: #1f2937;
  --bkg-app: var(--clr-mono-900);
  --bkg-20: var(--clr-mono-800);
  --bkg-card: var(--clr-card-900);
  --bkg-card-soft: var(--clr-card-800);
  --txt: var(--clr-mono-000);
  --txt-60: #d0d0d0;
  --txt-link: var(--clr-prime-400);
  --txt-highlight: var(--clr-amber-500);
  --bdr: var(--clr-mono-700);
  --bdr-card: var(--clr-card-bdr);
  --clr-feat-parallel: var(--clr-prime-500);
  --clr-feat-parallel-rgb: var(--clr-prime-500-rgb);
  --clr-feat-workbench: var(--clr-green-500);
  --clr-feat-workbench-rgb: var(--clr-green-500-rgb);
  --clr-feat-worktree: var(--clr-purple-500);
  --clr-feat-worktree-rgb: var(--clr-purple-500-rgb);
  --clr-feat-control: var(--clr-amber-500);
  --clr-feat-control-rgb: var(--clr-amber-500-rgb);
  --clr-feat-perf: var(--clr-prime-500);
  --clr-feat-perf-rgb: var(--clr-prime-500-rgb);
  --page-width: 72rem;
  --grid-page: 1fr min(var(--page-width), calc(100% - 3rem)) 1fr;
  --spacing-m: 1rem;
  --spacing-l: 2rem;
  --spacing-xl: 4rem;
  --why-section-padding: 2.5rem;
  --why-title-size: 1.65rem;
  --why-title-spacing: 1rem;
  --why-card-list-width: 70rem;
  --why-card-gap: .75rem;
  --why-card-min-height: 14.25rem;
  --why-card-padding-y: 1.55rem;
  --why-card-padding-x: 1.15rem;
  --why-card-radius: .55rem;
  --why-icon-size: 3.15rem;
  --why-icon-spacing: 1.5rem;
  --why-icon-glow-size: .9rem;
  --why-card-title-size: 1.05rem;
  --why-card-copy-size: .95rem;
  --why-card-copy-width: 11rem;
  --why-card-copy-spacing: 1rem;
  font-size: 16px;
}

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

body {
  color: var(--txt);
  background: var(--bkg-app);
  -webkit-font-smoothing: antialiased;
  font-family: Lato, Roboto, sans-serif;
  line-height: 1.5;
}

a {
  color: var(--txt-link);
  text-decoration: none;
  transition: color .2s;

  &:hover {
    text-decoration: underline;
  }
}

svg {
  display: block;
}

.z {
  color: var(--clr-prime-300);
}

header, main, footer {
  grid-template-columns: var(--grid-page);
  display: grid;
}

.content {
  grid-column: 2;
}

.highlight {
  color: var(--clr-prime-300);
}

txt-zcoder {
  font: inherit;
  color: var(--txt);
  white-space: nowrap;
  font-weight: 600;
  display: inline;

  & span {
    color: var(--clr-prime-400);
    font-weight: 800;
  }
}

header {
  padding: 1.5rem 0;

  & .content {
    justify-content: space-between;
    align-items: center;
    display: flex;
  }

  & .logo {
    color: var(--txt);
    font-size: 2.5rem;
    font-weight: 700;

    & .z {
      color: var(--clr-prime-400);
    }
  }

  & nav {
    align-items: center;
    gap: 1.5rem;
    display: flex;

    & a {
      color: var(--txt-60);
      font-size: .95rem;
      font-weight: 500;

      &:hover {
        color: var(--txt);
      }

      & svg {
        vertical-align: middle;
        width: 1rem;
        margin-left: .2rem;
        display: inline;
      }
    }
  }
}

.btn {
  cursor: pointer;
  border-radius: .5rem;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.2rem;
  font-weight: 600;
  transition: all .2s;
  display: inline-flex;

  &.btn-started {
    border: .0625rem solid var(--clr-prime-500);
    color: var(--txt-link);
    padding: .5rem 1rem;

    &:hover {
      background: #3b82f61a;
    }
  }

  &.btn-prime {
    background: var(--clr-prime-500);
    color: #fff;

    &:hover {
      background: var(--clr-prime-600);
    }
  }

  &.btn-outline {
    border: .0625rem solid var(--bdr);
    color: var(--txt);

    &:hover {
      border-color: var(--txt-60);
      background: #ffffff0d;
    }
  }
}

footer {
  border-top: .0625rem solid var(--bdr);
  padding: 6rem 0;

  & .content {
    text-align: center;
    color: var(--txt-60);
    font-size: .95rem;
  }
}

.page-index {
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  display: grid;
}

main {
  justify-content: center;
  align-items: center;
}

.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  grid-column: 2;

  & .pill {
    color: var(--clr-prime-500);
    background: #3b82f61a;
    border: .0625rem solid #3b82f64d;
    border-radius: 5rem;
    margin-bottom: .75rem;
    padding: .8rem 2.5rem;
    display: inline-flex;

    & .status {
      text-transform: uppercase;
      letter-spacing: .1rem;
      margin-top: 0;
      font-size: 2rem;
      font-weight: 700;
      line-height: 1.2;
    }
  }

  & .date {
    color: var(--txt-highlight);
    margin-bottom: 2.5rem;
    font-size: 1.5rem;
    font-weight: 400;
    display: block;

    &:hover {
      color: var(--txt-link);
      text-decoration: underline;
    }
  }

  & .main-title {
    letter-spacing: -.2rem;
    margin-bottom: .5rem;
    font-size: 7.5rem;
    font-weight: 800;
    line-height: 1;

    & .z {
      color: var(--clr-prime-500);
    }
  }

  & .sub-title {
    color: var(--txt);
    margin-bottom: 2rem;
    font-size: 2.5rem;
    font-weight: 500;
  }

  & .description {
    max-width: 45rem;
    color: var(--txt-60);
    margin: 0 auto 3.5rem;
    font-size: 1.2rem;
    line-height: 1.6;
  }

  & .actions {
    justify-content: center;
    gap: 1.5rem;
    display: flex;
  }
}

.page-section {
  grid-column: 2;
  padding: 3rem 0;

  & h2 {
    text-align: center;
    letter-spacing: -.05rem;
    margin-bottom: 2.5rem;
    font-size: 3rem;
    font-weight: 700;
  }

  & p {
    max-width: 60rem;
    color: var(--txt-60);
    margin: 0 auto;
    font-size: 1.2rem;
    line-height: 1.6;
  }
}

.code-block {
  background: linear-gradient(180deg, rgb(var(--clr-green-500-rgb) / .06), transparent 60%),
    var(--bkg-card);
  border: .0625rem solid var(--bdr-card);
  max-width: 40rem;
  box-shadow: inset 0 0 0 .0625rem rgb(var(--clr-green-500-rgb) / .04),
    0 1.5rem 4rem #00000038;
  border-radius: 1rem;
  margin: 0 auto;
  padding: 2rem;

  & pre {
    color: var(--txt);
    white-space: pre-wrap;
    margin: 0;
    font-family: Source Code Pro, monospace;
    font-size: 1.1rem;
    line-height: 1.5;
  }

  & code {
    color: inherit;
    font-family: inherit;
  }

  & .txt-code-comment {
    color: var(--clr-green-500);
  }
}

.why-section {
  padding: var(--why-section-padding) 0;

  & .why-intro {
    margin-bottom: 2.5rem;
  }

  & .why-concept-image {
    max-width: var(--why-card-list-width);
    place-items: center;
    margin: 0 auto 2.5rem;
    display: grid;

    & img {
      width: 100%;
      height: auto;
      display: block;
    }
  }
}

.why-card-list {
  max-width: var(--why-card-list-width);
  gap: var(--why-card-gap);
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
}

.why-card {
  --why-card-accent: var(--clr-prime-500);
  --why-card-accent-rgb: var(--clr-prime-500-rgb);
  min-height: var(--why-card-min-height);
  padding: var(--why-card-padding-y) var(--why-card-padding-x);
  border: .0625rem solid var(--bdr-card);
  border-radius: var(--why-card-radius);
  background: linear-gradient(180deg, rgb(var(--why-card-accent-rgb) / .08), transparent 55%),
    var(--bkg-card);
  text-align: center;
  box-shadow: inset 0 0 0 .0625rem rgb(var(--why-card-accent-rgb) / .04);
  flex-direction: column;
  align-items: center;
  display: flex;

  &.is-parallel {
    --why-card-accent: var(--clr-feat-parallel);
    --why-card-accent-rgb: var(--clr-feat-parallel-rgb);
  }

  &.is-workbench {
    --why-card-accent: var(--clr-feat-workbench);
    --why-card-accent-rgb: var(--clr-feat-workbench-rgb);
  }

  &.is-worktree {
    --why-card-accent: var(--clr-feat-worktree);
    --why-card-accent-rgb: var(--clr-feat-worktree-rgb);
  }

  &.is-control {
    --why-card-accent: var(--clr-feat-control);
    --why-card-accent-rgb: var(--clr-feat-control-rgb);
  }

  &.is-perf {
    --why-card-accent: var(--clr-feat-perf);
    --why-card-accent-rgb: var(--clr-feat-perf-rgb);
  }

  & .why-card-icon {
    width: var(--why-icon-size);
    height: var(--why-icon-size);
    margin-bottom: var(--why-icon-spacing);
    color: var(--why-card-accent);
    place-items: center;
    display: grid;

    & svg {
      width: var(--why-icon-size);
      height: var(--why-icon-size);
      fill: currentColor;
      filter: drop-shadow(0 0 var(--why-icon-glow-size) rgb(var(--why-card-accent-rgb) / .9));
    }
  }

  & strong {
    color: var(--txt);
    font-size: var(--why-card-title-size);
    letter-spacing: -.02rem;
    font-weight: 700;
    line-height: 1.2;
  }

  & .why-card-copy {
    max-width: var(--why-card-copy-width);
    margin-top: var(--why-card-copy-spacing);
    color: var(--txt-60);
    font-size: var(--why-card-copy-size);
    font-weight: 600;
    line-height: 1.55;
  }
}

@media (width <= 980px) {
  .why-card-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (width <= 560px) {
  .why-card-list {
    grid-template-columns: 1fr;
  }
}