engine/app/assets/stylesheets/locomotive/datepicker.scss

@import "compass/css3";
@import "compass/css3/border-radius";
@import "compass/css3/images";
@import "compass/css3/text-shadow";

.ui-datepicker {
  display: none;

  width: auto;

  z-index: 999 !important;

  background: #f1f1f1;

  padding: 3px 0 0 0;
  margin-top: 9px;

  border: 1px solid #bec8cc;
  @include border-radius(6px);

  @include box-shadow(rgba(255, 255, 255, 0.9) 0px 1px 1px 0px inset);

  .ui-datepicker-header {

    &:before {
      position: absolute;
      top: -10px;

      display: block;
      width: 100%;
      height: 8px;

      background: transparent image-url("locomotive/datepicker/ui-widget-content-top.png") no-repeat center 0;

      content: " ";
    }

    background: transparent;

    padding: 0px;
    border: 0px;
    @include border-radius(0px);

    @include background-image(linear-gradient(#edf0f1, #d7dadc));

    .ui-datepicker-title {
      margin: 0px;

      color: #646f75;
      font-size: 11px;
      line-height: 14px;
      font-weight: normal;
      @include text-shadow(rgba(255, 255, 255, 0.8), 0px, 1px, 1px);
    }

    .ui-datepicker-prev, .ui-datepicker-next {
      top: 4px;

      width: 7px;
      height: 13px;

      span {
        background-position: 0 0;
        cursor: pointer;
      }

      &.ui-state-hover {
        border: 0px;
        @include border-radius(0px);
        top: 5px;
      }
    }

    .ui-datepicker-prev {
      left: 10px;
      span {
        background-image: image-url("locomotive/datepicker/ui-widget-left-icon.png");
      }
    }

    .ui-datepicker-next {
      right: 10px;
      span {
        background-image: image-url("locomotive/datepicker/ui-widget-right-icon.png");
      }
    }
  }

  .ui-datepicker-calendar {
    margin: 0px;

    font-size: 12px;
    font-weight: normal;

    thead {
      th {
        background: #d7dadc;

        padding: 3px 0px;

        border-bottom: 1px solid #bcbfc2;

        color: #96a7b0;
        font-size: 9px;
        font-weight: normal;
        text-transform: uppercase;
      }
    }

    tbody {
      tr {
        td {
          border-top: 1px solid #f8f8f8;
          border-right: 1px solid #e0e0e0;

          width: 24px;
          height: 20px;
          line-height: 20px;

          padding: 0px;

          vertical-align: middle;
          text-align: center;

          a {
            display: block;

            background: none;

            padding: 0px;

            border: 0px;
            border-bottom: 1px solid #e0e0e0;

            color: #63696d;
            font-size: 11px;
            font-weight: normal;
            text-align: center;

            &.ui-state-active {
              border-top-color: transparent;
              border-bottom-color: transparent;
            }
          }

          &.ui-datepicker-current-day {
            border-top-color: transparent;
            border-bottom-color: transparent;

            @include background-image(linear-gradient(top, #e1e4e5, #e1e4e5 40%, #ccd1d3));
          }

          &.ui-datepicker-today a {
            font-weight: bold;
          }

          &:last-child {
            border-right: 0px;
          }
        }

        &:last-child td a {
          border-bottom: 0px;
        }
      }
    }
  }
}