@import url('https://fonts.googleapis.com/css2?family=Lato:wght@400;700&display=swap');

:root {
  --c-dark-bg-darker: #282121;
  --c-dark-bg: #312929;
  --c-dark-text: #ede5d2;

  --c-light-bg-darker: #e2c8c0;
  --c-light-bg: #e4d2ca;
  --c-light-text: #281c1f;

  --c-accent: #f2674a;

  --border-radius: 0.25em;
  --transition: all 0.1s ease;
  --transition-target: all 0.2s ease;

  --shadow-soft: 0px 4px 8px rgba(0, 0, 0, 0.15);
}

* {
  margin: 0;
  padding: 0;
}

html {
  overflow-x: hidden;
}

body {
  font-family: 'Lato', sans-serif;
  background-color: var(--c-dark-bg);
  color: var(--c-dark-text);
  transition: var(--transition);
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 2em auto;
}

button {
  transition: var(--transition);

  border: none;
  color: var(--c-dark-text);
  cursor: pointer;

  padding: 0.25em 0.5em;
  font-weight: bold;
  border-radius: var(--border-radius);
  background-color: var(--c-accent);
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

select {
  outline: none;
  border: none;
  cursor: pointer;
  padding: 0.5em 1em;
  border-radius: var(--border-radius);
  background-color: var(--c-dark-bg-darker);
  color: var(--c-accent);
  transition: var(--transition);
}
select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

ul {
  list-style: none;
}

a {
  max-width: max-content;
  transition: var(--transition);
  text-decoration: none;
  color: var(--c-accent);

  border-bottom: 1px solid transparent;
}

#theme-toggle-container {
  display: flex;
  align-items: center;
  justify-content: center;
}
#theme-toggle-button {
  padding: 0.5em;
  background-color: var(--c-dark-text);
  color: var(--c-accent);
  transition: all 0.25s ease;
}

#site-icon {
  align-self: center;
  width: 4em;
  height: 4em;
  z-index: 50;
  transition: all 0.35s ease;
}

#site-intro {
  gap: 0.5em;
  display: flex;
  text-align: center;
  flex-direction: column;
  justify-content: center;
  align-items: items-center;

  width: 80%;
  margin: 4em auto;

  padding: 2em 0;
  background-color: var(--c-dark-bg-darker);
  border-radius: var(--c-border-radius);

  transition: var(--transition);
}
#site-intro h1 {
  font-size: 2.25em;
  font-weight: bold;
  color: var(--c-accent);
}

#site-footer {
  bottom: 0;
  padding: 2em;
  position: relative;
  background-color: var(--c-dark-bg-darker);

  display: flex;
  flex-direction: column;
  gap: 2em;

  transition: var(--transition);
}
#site-footer aside {
  display: flex;
  flex-direction: column;
  gap: 0.25em;
}

#start-button,
#end-button {
  font-size: 1em;
  margin: 0.25em;
}

.centered-div {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-direction: column;

  margin: 0.5em 2em;
}

.accented-text {
  color: var(--c-accent);
}

#difficulty-description {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  text-align: center;
  background-color: var(--c-dark-bg-darker);
  margin-top: 0.5em;
  padding: 1em;
  border-radius: var(--border-radius);
  width: max-content;
}