:root {
    --clr-white: #ffffff;
    --clr-black: #000000;
    --clr-grey-500: #626C7F;
    --clr-grey-50: #F4F6FA;
    --clr-blue-950: #2D3949;
    --clr-blue-900: #313E51;
    --clr-blue-850: #3B4D66;
    --clr-blue-500: #306AFF;
    --clr-blue-300: #ABC1E1;
    --clr-blue-100: #EDF1E9;
    --clr-blue-50: #EBF0FF;
    --clr-creen-500: #2FD877;
    --clr-creen-100: #E0FDEF;
    --clr-purple-600: #A729F5;
    --clr-purple-100: #F6E7FF;
    --clr-orange-400: #FF7E35;
    --clr-orange-50: #FFF5ED;
    --clr-red-500: #EE5454;
    /* --icon-sun: url("images/icon-sun-dark.svg");
  --icon-moon: url("images/icon-moon-dark.svg"); */
}

body {  
    color: var(--clr-black);
    background-color: var(--clr-grey-50);
    font-family: "Rubik", sans-serif;
    font-optical-sizing: auto;
    font-weight: 500;
    font-style: normal;
}

header {
    position: relative;
    display: flex;
    justify-content: right;
}

.content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem;
}
.dark-theme {
    color: var(--clr-white);
    background-color: var(--clr-blue-900);
}
.theme-toggle {
    cursor: pointer;
    width: 2rem;
    height: 1.25rem;
    border-radius: 0.6rem;
    background-color: var(--clr-purple-600);
    position: relative;
    margin: 1rem 1.5rem;
    float: right;
}
.btn-theme {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background-color: var(--clr-white);
    position: absolute;
    top: 0.125rem;
    left: 0.125rem;
    transition: all 0.3s ease;
}
.dark-position {
    left: calc(100% - 1.125rem);
}
.theme-toggle::before {
  content: "";
  position: absolute;
  left: -1.3rem;
  top: 0.125rem;
  width: 1rem;
  height: 1rem;
  background: url("images/icon-sun-dark.svg") no-repeat center/contain;
}

.theme-toggle::after {
  content: "";
  position: absolute;
  right: -1.3rem;
  top: 0.125rem;
  width: 1rem;
  height: 1rem;
  background: url("images/icon-moon-dark.svg") no-repeat center/contain;
}

/* Темна тема */
.dark-theme .theme-toggle::before {
  background: url("images/icon-sun-light.svg") no-repeat center/contain;
}

.dark-theme .theme-toggle::after {
  background: url("images/icon-moon-light.svg") no-repeat center/contain;
}

.background-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background-image: url('images/pattern-background-mobile-light.svg');
    background-repeat: no-repeat;
    display: flex; /* Активуємо flexbox */
  justify-content: center; /* Горизонтальне центрування */
  align-items: center; /* Вертикальне центрування */
}
.content-wrapper {
    padding: 1.5rem;
}

.dark-theme .background-wrapper {
    background-image: url('images/pattern-background-mobile-dark.svg');
    background-repeat: no-repeat;
}

.welcom {
    font-size: 2.5rem;
    /* font-weight: 300; */
    margin-bottom: 1rem;
}
.welcom span {
    font-weight: 300;
}
.pick {
    font-size: 0.8rem;
    font-style: italic;
    font-weight: 400;
}
.subject{
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--clr-white);
  border-radius: 0.75rem;
  margin: 0.5rem 0;
  padding: 1rem;
  cursor: pointer;
  transition: transform 0.2s;
  width: 100%;
  border: none;
}

.subject-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 15%;
  background-color: var(--clr-grey-50);
}

.subject-icon img {
  width: 2rem;
  height: 2rem;
}

.subject-title {
  font-size: 1rem;
}
.dark-theme .subject {
  background-color: var(--clr-blue-850);
}

.dark-theme .quiz-header {
  background-color: transparent;
}

.quiz-header{
  position: absolute;
  top: -1rem;
  left: 0;
  background: none;
}
.brogress-total {
  width: 100%;
  background-color: var(--clr-white);
  border-radius: 0.5rem;
  height: 1rem;
  display: flex; 
  align-items: center;
  padding: 0.1rem;
  box-sizing: border-box;
  margin-bottom: 1.5rem;
}
.dark-theme .brogress-total {
  background-color: var(--clr-blue-850);
}
.dark-theme .subject-icon {
  color: var(--clr-black);
}
.brogress-bar {
  background-color: var(--clr-purple-600);
  height: 0.5rem;
  border-radius: 0.25rem;
}

.submit-btn {
  display: block;
  width: 100%;
  padding: 0.75rem;
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--clr-white);
  background-color: var(--clr-purple-600);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.submit-btn:hover {
  background-color: var(--clr-blue-500);
}
.correct {
  border: 2px solid var(--clr-creen-500);
}
.incorrect {
  border: 2px solid var(--clr-red-500);
}
.select-error {
  color: var(--clr-red-500);
  font-size: 1.25rem;
  margin-top: 0.5rem;
  display: none;
}
.dark-theme .select-error {
  color: var(--clr-white);
}
.select-error img {
  display: inline-flex;
  vertical-align: middle;
  margin-right: 0.5rem;
}

.summary {
  text-align: center;
  padding: 2rem;
  display: block;
}
#summary {
  display: none;
  margin-top: 1rem;
}
.coutn-right {
  font-size: 5.5rem;
  font-weight: 500;
  margin: 0;
}

/* @media (max-width: 76rem) {
  .content {
    grid-template-columns: 1fr 1fr; 
  }
} 
 @media (max-width: 48rem) { 
  .content {
    grid-template-columns: 1fr; 
  }
  .content-wrapper {
    padding: 2.5rem;
  }
} */

.content {
  grid-template-columns: 1fr; /* мобільна версія за замовчуванням */
}

@media (min-width: 49rem) {
  .content {
    grid-template-columns: 1fr 1fr; /* планшети і вище */
  }
}

@media (min-width: 76rem) {
  .content {
    grid-template-columns: 1fr 1fr; /* десктопи */
  }
}