@font-face {
  font-family: "Ledlight";
  src: url("fonts/LEDLIGHT.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "AlteHaasGrotesk";
  src: url("fonts/AlteHaasGroteskRegular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --background: #000;
  --text: #f0f0f0;
  --portrait-blend: screen;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --background: #fff;
    --text: #000;
    --portrait-blend: multiply;
  }
}

body[data-theme="light"] {
  color-scheme: light;
  --background: #fff;
  --text: #000;
  --portrait-blend: multiply;
}

body[data-theme="dark"] {
  color-scheme: dark;
  --background: #000;
  --text: #f0f0f0;
  --portrait-blend: screen;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: "AlteHaasGrotesk", Arial, sans-serif;
}

body > header {
  position: fixed;
  z-index: 10;
  top: 2rem;
  right: 2rem;
}

header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

header a,
#themeToggle {
  display: inline-block;
  padding: 0.6rem 0.8rem;
  border: 1px solid currentColor;
  border-radius: 0;
  background: var(--background);
  color: var(--text);
  font-family: "Ledlight", Arial, sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background 0.25s ease,
    color 0.25s ease,
    box-shadow 0.25s ease;
}

#themeToggle {
  position: fixed;
  z-index: 10;
  top: 2rem;
  left: 2rem;
}

header a:hover,
header a:focus-visible,
header a[aria-current="page"],
#themeToggle:hover,
#themeToggle:focus-visible {
  background: #ff00cc;
  color: #000;
  border-color: #ff00cc;
  box-shadow: 0 0 18px 4px #ff00cc;
}

main {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  align-items: center;
  gap: 5vw;
  min-height: 100vh;
  padding: 8rem 8vw 4rem;
  scroll-margin-top: 7rem;
}

h1 {
  grid-column: 1 / -1;
  margin: 0;
  font-family: "Ledlight", Arial, sans-serif;
  font-size: clamp(2.5rem, 8vw, 7rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  overflow-wrap: anywhere;
}

#intro {
  grid-column: 1;
  min-width: 0;
  min-height: 42rem;
  padding: 3rem;
  border: 2px solid currentColor;
  font-size: clamp(1rem, 1.5vw, 1.5rem);
  line-height: 1.6;
}

#intro p {
  max-width: 34rem;
  margin: 0 0 2rem;
}

#intro p:last-child {
  margin-bottom: 0;
}

#portrait {
  grid-column: 2;
  justify-self: end;
  align-self: end;
  width: min(100%, 38rem);
  height: auto;
  max-height: 78vh;
  object-fit: contain;
  mix-blend-mode: var(--portrait-blend);
}

#skip-link {
  position: fixed;
  z-index: 20;
  top: 1rem;
  left: 1rem;
  padding: 1rem;
  border: 2px solid currentColor;
  background: var(--background);
  color: var(--text);
  transform: translateY(-200%);
}

#skip-link:focus {
  transform: translateY(0);
}

a:focus-visible,
button:focus-visible,
main:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 5px;
}

@media (max-width: 1200px) {
  #themeToggle {
    position: absolute;
    top: 1rem;
    left: 1rem;
  }

  body > header {
    position: static;
    padding: 5rem 1rem 1rem;
  }

  header nav {
    gap: 0.6rem;
  }

  header a {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  main {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
    padding: 2rem 1rem;
    gap: 2rem;
    scroll-margin-top: 1rem;
  }

  h1 {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  #intro {
    min-height: auto;
    padding: 1.5rem;
    font-size: 1rem;
    overflow-wrap: anywhere;
  }

  #intro p {
    max-width: 100%;
  }

  #portrait {
    grid-column: 1;
    justify-self: center;
    width: min(100%, 24rem);
    max-height: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  header a,
  #themeToggle {
    transition: none;
  }
}