* {
  box-sizing: border-box;
}

:root {
  --primary-color: #7b3838;
  --primary-button: #e8b1ba;
  --hovered-button: #cd8d97;
  --green-accent: #94b4a0;
  --bright-green-accent: #1ee96c;
}

.container {
  max-width: 75rem;
  margin: 0 auto;
}

.flex {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.flex>h1,
.flex>.search {
  flex: 1;
}

.search {
  padding: 0.25em 1em;
  font-size: 1.3rem;
}

.grid-wrapper {
  --auto-grid-min-size: 16rem;
  display: grid;
  grid-gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(var(--auto-grid-min-size), 1fr));
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Montserrat', sans-serif;
}

.grid-wrapper .lesson {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--primary-color);
  background-color: white;
  border: .15em solid var(--primary-color);
  border-radius: 0.75em;
  font-size: 1.25rem;
  padding: 3rem 1.25rem;
  text-align: left;
  transition: box-shadow 300ms ease-in-out;
}

.grid-wrapper .lesson:hover {
  box-shadow: 0 0 1em rgba(33, 33, 33, .2);
}

.grid-wrapper .lesson img {
  margin: 0 auto;
  max-width: 9.375rem;
  max-height: 9.375rem;
}

.cart-added-items li {
  display: flex;
  align-items: center;
  gap: 1rem;
}

button {
  cursor: pointer;
  margin: 1em 0;
  padding: 0.75em 1.25em;
  border-radius: 0.5em;
  background-color: var(--primary-button);
  color: #000;
  font-size: 0.75em;
  font-weight: bold;
  border: 1px solid #000;
  transition: background-color 300ms ease-in-out;
}

button:hover {
  background-color: var(--hovered-button);
}

button.backBtn {
  border-width: 2px;
  background-color: white;
}

button.backBtn:hover {
  border-color: var(--hovered-button);
}

.sorting button {
  background-color: var(--green-accent)
}

.sorting button:focus {
  background-color: var(--bright-green-accent);
}

button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

.input-group {
  display: flex;
  flex-direction: column;
  max-width: 20rem;
  margin-bottom: 1rem;
}

.input-group label {
  user-select: none;
}

.input-group input {
  font-size: 1rem;
  padding: 0.5em 1em;
}

.errorMsg {
  grid-column: 1 / -1;
  border: 1px solid #d9534f;
  border-radius: 4px;
  color: #d9534f;
  background-color: #f2dede;
  padding: 15px;
  margin-bottom: 20px;
  text-transform: capitalize;
  font-weight: bold;
}

.errorMsg u {
  color: #000;
}