.section-topgap {
    margin-top: 7.5rem;
}
.pull-left {
    float: left;
}
.pull-right {
    float: right;
}
.pt-0 {
    padding-top: 0;
}
.ml-40{
    margin-left: 2.5rem;
}
.mt-20{
    margin-top: 1.25rem;
}
.mt-40{
    margin-top: 2.5rem;
}
.mt-60 {
  margin-top: 3.5rem !important;
}
.lh-32 {
  line-height: 2rem;
}


.bb-0 {
  border-bottom: 0 !important;
}
/* ===================================== scroll to top ===================================== */
.stt {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: flex;
    width: 37px;
    height: 37px;
    padding: 5px;
    cursor: pointer;
    visibility: hidden;
    opacity: 0;
    transition: 0.3s ease-in-out;
    border-radius: 5px;
}

  .stt:hover {
    opacity: 1; }

  .stt__active {
    visibility: visible;
    opacity: 0.5; }

  .stt__block_black {
    background-color: #000;
     }

  .stt__block_black:before {
    position: absolute;
    top: 50%;
    left: 40%;
    display: block;
    width: 20px;
    height: 5px;
    content: "";
    background-color: #fff;
    transform: translate(0, -50%) rotate(45deg); }

  .stt__block_black:after {
    position: absolute;
    top: 50%;
    right: 40%;
    display: block;
    width: 20px;
    height: 5px;
    content: "";
    background-color: #fff;
    transform: translate(0, -50%) rotate(-45deg); }


/* ===================================== gallary ===================================== */

    .gg-container {
      --main-color: #000;
      --secondary-color: #111;
      --txt-color: #fff;
      --img-bg-color: rgba(240, 240, 240, 0.9);
      --backdrop-color: rgba(240, 240, 240, 0.9);
      --gap-length: 2px;
      --row-height: 400px;
      --column-width: 440px;
      width: 1200px;
      margin: 0 auto;
    }

    .gg-container *[data-theme="dark"] {
      --main-color: #ddd;
      --secondary-color: #eee;
      --txt-color: #111;
      --img-bg-color: rgba(20, 20, 20, 0.9);
      --backdrop-color: rgba(30, 30, 30, 0.9);
    }

    .gg-box {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(var(--column-width), 1fr));
      grid-auto-rows: var(--row-height);
      grid-gap: var(--gap-length);
      margin: 20px 0;
    }

    .gg-box img {
      object-fit: cover;
      cursor: pointer;
      width: 100%;
      height: 100%;
      background: var(--img-bg-color);
    }

    .gg-box img:hover {
      opacity: 0.98;
    }

    #gg-screen {
      position: fixed;
      width: 100%;
      height: 100%;
      top: 0;
      left: 0;
      background: var(--backdrop-color);
      z-index: 9999;
      text-align: center;
    }

    #gg-screen .gg-image {
      height: 100%;
      display: inline-flex;
      justify-content: center;
      align-items: center;
    }

    #gg-screen .gg-image img {
      max-width: 100%;
      max-height: 100%;
      margin: 0 auto;
    }

    .gg-btn {
      width: 35px;
      height: 35px;
      background: var(--main-color);
      color: var(--txt-color);
      text-align: center;
      line-height: 35px;
      cursor: pointer;
      -moz-transition: all 0.4s ease;
      -o-transition: all 0.4s ease;
      -webkit-transition: all 0.4s ease;
      transition: all 0.4s ease;
      font-size: 20px;
      box-sizing: border-box;
      padding-left: 2px;
      position: fixed;
      bottom: 10px;
    }

    .gg-btn:hover {
      background: var(--secondary-color);
    }

    .gg-close {
      top: 10px;
    }

    .gg-close,
    .gg-next {
      right: 10px;
    }

    .gg-prev {
      right: 50px;
    }

    .gg-prev,
    .gg-next {
      bottom: 10px;
    }

    @media (min-width: 478px) {
      .gg-box img:nth-child(2n):not(:last-of-type) {

      }

      [data-layout="horizontal"] img:nth-child(2n):not(:last-of-type) {
        grid-column-end: span 2;
        grid-row-end: span 1;
      }

      [data-layout="square"] img:nth-child(2n):not(:last-of-type) {
        grid-row-end: span 1;
      }
    }

    @media (max-width: 768px) {
      .gg-box {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        grid-auto-rows: calc(var(--row-height) - 15vh);
        margin: 10px 0;
      }
    }

    @media (max-width: 450px) {
      .gg-box {
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
        grid-auto-rows: 400;
      }
    }