ar-design/dist/assets/css/components/data-display/kanban-board/styles.css

AR Design is a (react | nextjs) ui library.

.ar-kanban-board {
  display: flex;
  flex-direction: column;
  max-width: 100%;
  min-width: 100%;
  border-radius: var(--border-radius-lg);
  overflow-x: auto;
  overflow-y: auto;

  /* width */
  &::-webkit-scrollbar {
    width: 0.75rem;
    height: 0.75rem;
  }

  /* Track */
  &::-webkit-scrollbar-track {
    background: transparent;
  }

  /* Handle */
  &::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--border-radius-pill);
  }

  /* Handle on hover */
  &::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
  }

  > .buttons {
    position: absolute;
    top: 150px;
    display: flex;
    justify-content: space-between;
    width: 100%;
    height: 2.5rem;
    z-index: 5;

    > .button {
      position: relative;
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: rgba(var(--black-rgb), 0.1);
      backdrop-filter: blur(5px);
      width: 2rem;
      height: 5rem;
      border-radius: var(--border-radius-sm);
      cursor: pointer;

      &.left {
        left: -10px;
      }

      &.right {
        right: 0;
      }
    }
  }

  > .titles {
    position: sticky;
    top: 0;
    left: auto;
    right: auto;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 1.5rem;
    width: 100%;
    z-index: 5;

    > .title {
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 0.5rem;
      background-color: var(--white);
      max-width: 350px;
      min-width: 350px;
      margin-bottom: 1rem;
      padding: 0.5rem 1rem;
      border-radius: var(--border-radius-lg);
      color: var(--gray-700);
      font-family: var(--system);
      font-size: 0.85rem;
      font-weight: 700;
      box-shadow: 0px 5px 5px -2px rgba(var(--black-rgb), 0.1);

      > h4 {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 0.5rem;
        color: var(--gray-500);

        > span {
          position: relative;
          width: 5px;
          height: 20px;
          border-radius: var(--border-radius-pill);

          &::after {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            left: 100%;
            content: "";
            border: solid 5px transparent;
            border-left-color: inherit;
          }
        }
      }

      > span {
        color: var(--gray-400);
        font-weight: 400;
      }
    }
  }

  > .columns {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 1.5rem;
    width: 100%;
    height: max-content;
    z-index: 4;

    > .column {
      position: relative;
      display: flex;
      flex-direction: column;
      flex-wrap: nowrap;
      gap: 0.75rem;
      flex-shrink: 0;
      max-width: 350px;
      min-width: 350px;
      user-select: none;

      > .items {
        position: relative;
        background-color: var(--white);
        padding: 1rem;
        height: 100%;
        border: dashed 0 transparent;
        border-radius: var(--border-radius-lg);
        transition:
          transform 250ms,
          border 250ms ease-in-out;

        &:has(> .no-item) {
          display: flex;
          justify-content: center;
          align-items: center;
        }

        &.dragging {
          border: dashed 2.5px var(--blue-200);
          border-radius: var(--border-radius-lg);
          transform: scaleX(1) scaleY(1);
          overflow: hidden;

          /* &::before {
            display: flex;
            justify-content: center;
            align-items: center;
            position: absolute;
            top: 1rem;
            left: 50%;
            transform: translateX(-50%);
            content: "\F488";
            color: var(--blue-100);
            font-family: "bootstrap-icons" !important;
            font-size: 4rem;
            text-shadow: 2px 2px var(--blue-200);
            z-index: 5;
          } */
        }

        > .no-item {
          position: relative;
          display: flex;
          flex-direction: column;
          justify-content: center;
          align-items: center;

          &::after {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 23px;
            content: "";
            background-color: var(--gray-200);
            width: 70px;
            height: 16px;
            border-radius: 100%;
          }

          > span {
            color: var(--gray-500);
            font-family: var(--system);
          }
        }
      }
    }
  }
}

.filters {
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  gap: 1rem;
  background-color: var(--white);
  margin-bottom: 1rem;
  border-radius: var(--border-radius-lg);
  z-index: 6;

  > :first-child {
    flex: 1;
  }

  > ul {
    list-style: none;
    display: flex;
    flex-direction: row;
    gap: 0.5rem;

    > li {
      position: relative;
      padding: 0.5rem;
      cursor: pointer;
      user-select: none;

      &.active {
        background-color: var(--gray-100);

        > ul {
          animation: dropdownOpen 250ms ease-in-out;
        }
      }

      > div {
        display: flex;
        align-items: center;
        gap: 0.5rem;

        > span {
          color: var(--gray-500);
          font-weight: 500;
        }
      }

      > ul {
        list-style: none;
        position: absolute;
        top: 100%;
        right: 0;
        background-color: var(--gray-100);
        width: max-content;
        padding: 1rem;
        border-bottom-left-radius: var(--border-radius-sm);
        border-bottom-right-radius: var(--border-radius-sm);
        box-shadow: 0px 5px 5px -2px rgba(var(--black-rgb), 0.1);

        > li {
          cursor: auto;
        }
      }
    }
  }
}

@keyframes dropdownOpen {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- [KÜÇÜK MOBİL - IPHONE SE VB.] --- */
/* Çok dar ekranlar için özel düzeltmeler */
@media (max-width: 375px) {
}

/* --- [MOBİL - STANDART] --- */
/* Ekran 576px ve altına düştüğünde çalışır */
@media (max-width: 576px) {
}

/* --- [TABLET DİKEY & BÜYÜK TELEFONLAR] --- */
/* Ekran 768px ve altına düştüğünde çalışır */
@media (max-width: 768px) {
  .ar-kanban-board {
    /* width */
    &::-webkit-scrollbar {
    }

    /* Track */
    &::-webkit-scrollbar-track {
    }

    /* Handle */
    &::-webkit-scrollbar-thumb {
    }

    /* Handle on hover */
    &::-webkit-scrollbar-thumb:hover {
    }

    > .buttons {
      display: none;

      > .button {
        &.left {
        }

        &.right {
        }
      }
    }

    > .titles {
      > .title {
        > h4 {
          > span {
            &::after {
            }
          }
        }

        > span {
        }
      }
    }

    > .columns {
      > .column {
        > .items {
          &:has(> .no-item) {
          }

          &.dragging {
          }

          > .no-item {
            &::after {
            }

            > span {
            }
          }
        }
      }
    }
  }
}

/* --- [TABLET & KÜÇÜK LAPTOP] --- */
/* Ekran 1024px ve altına düştüğünde çalışır */
@media (max-width: 1024px) {
}