/* Light Theme */
:root {
  --background-color: #ffffff;
  --primary-text-color: #000000;
  --secondary-text-color: rgb(125, 127, 147);
  --color-accent: #2563eb;
  --color-border: #d9dde5;
}

body:has(#theme2:checked) {
  --background-color: #1c232b;
  --primary-text-color: #fff;
  --secondary-text-color: rgb(125, 127, 147);
  --color-accent: #2563eb;
  --color-border: #c6ccd3;
}

body:has(#theme3:checked) {
  --background-color: #fffdf5;
  --primary-text-color: #0b3018;
  --secondary-text-color: rgb(125, 127, 147);
  --color-accent: #2e9b50;
  --color-border: #dedfc9;
}

body:has(#theme4:checked) {
  --background-color: #fff1f5;
  --primary-text-color: #831843;
  --secondary-text-color: #9d6b7d;
  --color-accent: #ec7fa9;
  --color-border: #f3c4d4;
}

body:has(#theme5:checked) {
  --background-color: #0b1f3a;
  --primary-text-color: #f8fafc;
  --secondary-text-color: #a9b9d0;
  --color-accent: #4169e1;
  --color-border: #29466f;
}

body:has(#theme6:checked) {
  --background-color: #101510;
  --primary-text-color: #eaff00;
  --secondary-text-color: #b8c4a8;
  --color-accent: #c7f000;
  --color-border: #35402b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #f5f6f8;
}

.container {
  border: 2px solid var(--color-border);
  padding: 58px 23px 48px 23px;
  width: 33vw;
  border-radius: 15px;
  max-width: 600px;
  min-width: 400px;
  border: 3px solid var(--color-border);
  box-shadow: 0px 0px 10px 0px rgba(74, 11, 11, 0.2);
  background-color: var(--background-color);
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease;
}

form {
  margin-bottom: 57px;
  display: flex;
  flex-wrap: wrap;
  border: 2px solid var(--color-border);
  transition: border-color 0.2s ease;
}

form input {
  position: absolute;
  opacity: 0;
}

form label {
  /* flex: 0 0 33.33%; */
  width: 33.33%;
  padding: 11px 15px;
  font-size: 24px;
  border-right: 1px solid var(--color-border);
  color: var(--secondary-text-color);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  /* flex: 1; */
  margin: 0;
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    color 0.2s ease;
}

form label:nth-of-type(3) {
  border-right: none;
}

form label:nth-of-type(4),
form label:nth-of-type(5),
form label:nth-of-type(6) {
  border-bottom: none;
}

form label:last-of-type {
  border-right: none;
}

/* Selected label */

form input:checked + label {
  background-color: var(--color-accent);
  color: #ffffff;
}

h1 {
  font-size: 4.5rem;
  margin-bottom: 38px;
  font-weight: 600;
  color: var(--primary-text-color);
}

p {
  margin-bottom: 38px;
  font-size: 1.65rem;
  color: var(--secondary-text-color);
}

button {
  padding: 12px;
  font-size: 1.35rem;

  background-color: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
}