:root {
  --white: #f9faff;
  --platinum: #e3e4e8;
  --windsurfing: #32779b;
  --marina: #5a91c7;
  --gray: #9a9a9a;
  --onyx: #3c3d44;
  --charcoal: #343c47;
  --corners: 24px 0;
  --corners-sm: 10px 0;
  --base-font-size: 1rem;
  --ld-bkgd: light-dark(var(--platinum), var(--charcoal));
  --ld-text: light-dark(var(--onyx), var(--white));
  --ld-projects: light-dark(var(--white), #2e313d);
  --ld-blue: light-dark(var(--windsurfing), #6dadd0);
}

html {
  box-sizing: border-box;
  color-scheme: light dark;
}

html[data-theme="light"] {
  color-scheme: light;
}
html[data-theme="dark"] {
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  font-size: var(--base-font-size);
  font-family: "Inter", sans-serif;
  background-color: var(--ld-bkgd);
  color: var(--ld-text);
}

.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

h1 {
  margin: 0;
  font-size: calc(var(--base-font-size) * 2.9);
}

h2 {
  margin: 0;
  font-size: calc(var(--base-font-size) * 1.5);
  text-transform: uppercase;
  color: var(--ld-blue);
  letter-spacing: 0.25em;
}

h3 {
  margin: 0;
}

p {
  line-height: 1.5;
}

a {
  color: var(--ld-blue);
}

a:hover {
  color: var(--marina);
}

img {
  max-width: 100%;
  border-radius: var(--corners);
}

.icons {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-flow: row wrap;
  align-items: flex-end;
  justify-content: center;
  gap: 2rem;
}

ul svg {
  width: 36px;
  height: 36px;
}

.social {
  fill: var(--ld-blue);
}
.social:hover {
  fill: var(--marina);
}

.main-article {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  text-align: center;
}

.main-article img {
  margin: 0 auto;
  object-fit: cover;
  object-position: top;
  height: 175px;
  width: 300px;
  overflow: hidden;
  border-radius: 50%;
}

footer {
  text-align: center;
}

.footer-text {
  line-height: 1.5;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.footer-text h3 {
  font-size: calc(var(--base-font-size) * 0.85);
}

.footer-text-box ul {
  font-size: calc(var(--base-font-size) * 0.85);
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.footer-text-box li {
  line-height: 2;
}

.h2-footer {
  margin: 2rem 0;
}

.icons .social {
  fill: var(--ld-blue);
}

.icons .social:hover {
  fill: var(--marina);
}

main {
  margin-top: 5rem;
  margin-bottom: 3rem;
  text-align: center;
}

main h2 {
  margin-bottom: 3rem;
}

.project {
  background: var(--ld-projects);
  padding: 3rem;
  border-radius: var(--corners);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.projects {
  display: flex;
  flex-flow: column nowrap;
  gap: 3rem;
}

.project ul {
  margin: 0;
  padding: 0;
  list-style-type: none;
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  gap: 1rem;
}

.project li {
  background-color: var(--marina);
  color: var(--white);
  padding: 0.5rem;
  border-radius: var(--corners-sm);
  font-size: calc(var(--base-font-size) * 0.85);
}

.project img {
  grid-row: 1/2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.img-border {
  border: none;
}

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: var(--ld-projects);
  border: 2px solid var(--ld-blue);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
  background: var(--ld-blue);
  transform: scale(1.1);
}

.theme-toggle:focus {
  outline: 2px solid var(--ld-blue);
  outline-offset: 2px;
}

.theme-toggle-icon {
  display: block;
  line-height: 1;
}

@media (min-width: 750px) {
  :root {
    --base-font-size: 1.125rem;
  }

  .theme-toggle {
    top: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    font-size: 1.75rem;
  }

  h1 {
    margin-left: -3px;
  }
  .wrapper {
    padding: 2rem;
  }
  .main-article {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    text-align: left;
  }
  .main-article img {
    max-height: 400px;
    height: auto;
    width: 100%;
    overflow: hidden;
    margin: 0 0 0 auto;
    object-fit: cover;
    object-position: center center;
    border-radius: 50%;
  }
  .icons {
    justify-content: flex-start;
  }
  footer {
    text-align: left;
  }

  .footer-text {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-text .icons {
    grid-column: 1/4;
  }

  @media (min-width: 850px) {
    main {
      text-align: left;
    }
    
    main h2 {
      margin-bottom: 4rem;
    }
    
    .project {
      grid-template-columns: 1fr 1fr;
      align-items: stretch;
    }
    
    .project img {
      grid-row: auto;
      width: 100%;
      height: 100%;
      min-height: 400px;
      object-fit: cover;
      object-position: center;
    }
    
    .project .text {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .project ul {
      justify-content: flex-start;
    }
  }
}