* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "DM Sans", sans-serif;
  background-color: #f8f8f8;
  color: #2c2c2a;
}

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

.app-header {
  background-color: #ffffff;
  border-bottom: 0.5px solid #e0e0e0;
  padding: 0 1.5rem;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-title {
  font-size: 14px;
  font-weight: 500;
  color: #2c2c2a;
}

.board {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  flex: 1;
  overflow-x: auto;
  justify-content: center;
}

.column {
  background: #efefef;
  border-radius: 10px;
  width: 320px;
  min-height: 480px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.column-accent {
  height: 3px;
  border-radius: 10px 10px 0 0;
}

#col-1 .column-accent {
  background: #378add;
}

#col-2 .column-accent {
  background: #ef9f27;
}

#col-3 .column-accent {
  background: #1d9e75;
}

#col-1 {
  background: #ebf4fd;
}

#col-2 {
  background: #fef7ec;
}

#col-3 {
  background: #e8f7f2;
}

.column-header {
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.column-name {
  font-size: 15px;
  font-weight: 500;
  color: #2c2c2a;
}

.column-count {
  font-size: 12px;
  color: #888780;
  background: #e0e0e0;
  border-radius: 20px;
  padding: 1px 7px;
}

.column-cards {
  padding: 0.5rem 0.5rem 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.kanban-card {
  background: #ffffff;
  border: 0.5px solid #e0e0e0;
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  cursor: grab;
}

.kanban-card p {
  font-size: 14px;
  color: #2c2c2a;
  line-height: 1.4;
}

.column-footer {
  padding: 0.5rem;
}

.col-add-btn {
  width: 100%;
  font-size: 12px;
  color: #888780;
  background: transparent;
  border: 0.5px dashed #c8c8c8;
  border-radius: 6px;
  padding: 12px;
  cursor: pointer;
}

.col-add-btn:hover {
  background: rgba(0, 0, 0, 0.04);
  color: #2c2c2a;
}

.trash-zone {
  width: calc(3 * 320px + 2 * 1rem);
  margin: 0 auto 1.25rem;
  border: 0.5px dashed #f09595;
  border-radius: 10px;
  padding: 1.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fcebeb;
}

.trash-zone span {
  font-size: 12px;
  color: #a32d2d;
}

#col-1 .col-add-btn {
  border-color: #b5d4f4;
  color: #378add;
}

#col-2 .col-add-btn {
  border-color: #fac775;
  color: #ba7517;
}

#col-3 .col-add-btn {
  border-color: #9fe1cb;
  color: #0f6e56;
}

.card-input {
  width: 100%;
  font-family: "DM Sans", sans-serif;
  font-size: 13px;
  color: #2c2c2a;
  background: #ffffff;
  border: 1px solid #378add;
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  outline: none;
  box-sizing: border-box;
}

.column-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.colour-picker {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 0.5px solid rgba(0, 0, 0, 0.15);
  padding: 0;
  cursor: pointer;
  background: none;
  outline: none;
  -webkit-appearance: none;
}

.colour-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.colour-picker::-webkit-color-swatch {
  border: none;
  border-radius: 50%;
}

#col-1 {
  --accent-colour: #378add;
}
#col-2 {
  --accent-colour: #ef9f27;
}
#col-3 {
  --accent-colour: #1d9e75;
}

.column-name-input {
  font-family: "DM Sans", sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: #2c2c2a;
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  caret-color: var(--accent-colour);
}