:root {
  --font-weight-medium: 500;
  --color-accent: #ff5043;
  --letter-spacing: 0;

  /* Light como valor por defecto */
  --color-primary: #000000;
  --color-secondary: #828282;
  --color-tertiary: #cacaca;
  --color-base: #ffffff;
  --font-weight-regular: 400;
}

/* THEMES */
@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #ffffff;
    --color-secondary: #949494;
    --color-tertiary: #272727;
    --color-base: #000000;
    --font-weight-regular: 300;
    --letter-spacing: 0;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --color-primary: #000000;
    --color-secondary: #828282;
    --color-tertiary: #cacaca;
    --color-base: #ffffff;
    --font-weight-regular: 400;
    --letter-spacing: -0.25px;
  }
}

/* BASE */
* {
  box-sizing: border-box;
}

html,
body {
  background-color: var(--color-base);
}

body {
  color: var(--color-primary);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 34px;
  font-weight: var(--font-weight-regular);
  font-kerning: normal;
  line-height: 1.24;
  margin: 0 30px;
  padding: 0;
  text-rendering: optimizeLegibility;
  transition: margin 700ms;
  -webkit-font-smoothing: antialiased;
}

main {
  letter-spacing: var(--letter-spacing);
}

h1 {
  font-size: 28px;
  font-weight: var(--font-weight-medium);
  margin-bottom: 10px;
}

p {
  margin-top: 0;
  padding-top: 0;
}

sup {
  color: var(--color-secondary);
  font-size: 16px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 1px;
  line-height: 0;
  margin-left: 4px;
  text-size-adjust: none;
  -webkit-text-size-adjust: none;
}

.sup-small {
  color: var(--color-primary);
  margin-left: 0;
}

.site {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.content {
  flex: 1;
  max-width: 1100px;
}

.medium {
  font-weight: var(--font-weight-medium);
}

/* LANGUAGE */
.lang {
  font-size: 18px;
  font-weight: var(--font-weight-medium);
  position: absolute;
  right: 20px;
  text-align: right;
  top: 20px;
}

.lang a:link,
.lang a:visited {
  background-color: var(--color-tertiary);
  border-radius: 50px;
  color: var(--color-primary);
  font-size: 15px;
  padding: 3px 10px;
}

.lang a:hover,
.lang a:visited:hover {
  background-color: var(--color-primary);
  border-bottom: 0;
  color: var(--color-base);
}

/* AVATAR */
.avatar {
  margin-bottom: 10px;
  margin-left: -10px;
  margin-top: 40px;
  width: 160px;
  height: 160px;
}

.avatar-video {
  width: 160px;
  height: 160px;
  object-fit: cover;
}

/* Ocultar ambos por defecto */
.avatar-dark,
.avatar-light {
  display: none;
}

/* Dark theme: mostrar solo el video oscuro */
@media (prefers-color-scheme: dark) {
  .avatar-dark {
    display: block;
  }
}

/* Light theme: mostrar solo el video claro */
@media (prefers-color-scheme: light) {
  .avatar-light {
    display: block;
  }
}

/* FOOTER */
footer {
  font-size: 28px;
  line-height: 1.4;
  margin-bottom: 30px;
}

.reference {
  border-top: 1px solid var(--color-tertiary);
  color: var(--color-secondary);
  font-size: 20px;
  line-height: 1.6;
  margin-top: 20px;
  padding-top: 15px;
  text-size-adjust: none;
  -webkit-text-size-adjust: none;
}

/* LINKS */
a:link,
a:visited {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover,
a:visited:hover {
  border-bottom: 1px solid var(--color-accent);
  color: var(--color-accent);
}

footer a:link,
footer a:visited {
  border-bottom: 1px solid var(--color-primary);
  color: var(--color-primary);
}

footer a:hover,
footer a:visited:hover {
  border-bottom: 1px solid var(--color-secondary);
  color: var(--color-secondary);
}

/* SCREENS */
@media screen and (max-width: 800px) {
  .avatar {
    margin-top: 60px;
  }
}

@media screen and (min-width: 801px) {
  body {
    margin-left: 60px;
    margin-right: 60px;
  }

  .lang {
    right: 30px;
  }
}