/* BosTech HYT — Material reports / TDS & MSDS page */

  /* ===== BREADCRUMB BANNER (page header) ===== */
  .bt-banner{
    position: relative;
    min-height: 360px;
    display: flex;
    align-items: center;
    color: #fff;
    overflow: hidden;
    background-color: var(--bt-navy);
  }
  .bt-banner::before{
    content: "";
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(20,30,80,0.7), rgba(20,30,80,0.7)),
      url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85?w=1600&q=80');
    background-size: cover;
    background-position: center;
    z-index: 0;
  }
  .bt-banner.bt-banner--dynamic::before{
    background-image:
      linear-gradient(rgba(20,30,80,0.7), rgba(20,30,80,0.7)),
      var(--bt-banner-bg, url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85?w=1600&q=80'));
  }
  .bt-banner > .container-xxl{ position: relative; z-index: 1; }

  .bt-banner h1{
    font-weight: 800;
    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: #fff;
    margin: 0 0 18px;
    max-width: 1100px;
  }
  .bt-banner .crumbs{
    color: #fff;
    font-size: 14.5px;
    margin: 0;
  }
  .bt-banner .crumbs a{
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color .15s ease;
  }
  .bt-banner .crumbs a:hover{ color: var(--bt-orange); }
  .bt-banner .crumbs .sep{
    margin: 0 8px;
    opacity: .8;
  }

  @media (max-width: 767.98px){
    .bt-banner{ min-height: 240px; }
  }

/* ===== REVIEW SHEETS / DATASHEET TABLE SECTION ===== */
  .bt-reviewsheets{
    position: relative;
    background: #fff;
    padding: 70px 0 80px;
    overflow: hidden;
  }
  /* Faint hex pattern background */
  .bt-reviewsheets::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 360px;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='160' viewBox='0 0 180 160'><g fill='none' stroke='%23f08023' stroke-width='1' opacity='0.32'><polygon points='30,5 55,20 55,50 30,65 5,50 5,20'/><polygon points='90,5 115,20 115,50 90,65 65,50 65,20'/><polygon points='150,5 175,20 175,50 150,65 125,50 125,20'/><polygon points='60,55 85,70 85,100 60,115 35,100 35,70'/><polygon points='120,55 145,70 145,100 120,115 95,100 95,70'/><polygon points='30,105 55,120 55,150 30,165 5,150 5,120'/><polygon points='90,105 115,120 115,150 90,165 65,150 65,120'/><polygon points='150,105 175,120 175,150 150,165 125,150 125,120'/></g></svg>");
    background-repeat: repeat;
    pointer-events: none;
    z-index: 0;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
  }
  .bt-reviewsheets > .container-xxl{ position: relative; z-index: 1; }

  .review-heading{
    text-align: center;
    font-weight: 800;
    font-size: clamp(24px, 2.8vw, 36px);
    color: var(--bt-navy);
    margin-bottom: 14px;
    line-height: 1.2;
  }
  .review-heading .hl{
    background: var(--bt-orange);
    color: #fff;
    padding: 4px 14px 8px;
    margin-right: 6px;
    display: inline-block;
  }
  .review-sub{
    text-align: center;
    color: #2c2c2c;
    font-size: 14.5px;
    max-width: 760px;
    margin: 0 auto 30px;
    line-height: 1.65;
  }

  /* Category tabs */
  .review-tabs{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-bottom: 28px;
  }
  .review-tab{
    background: #fff;
    color: var(--bt-navy);
    border: 1.5px solid var(--bt-navy);
    border-radius: 100px;
    padding: 11px 26px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: background .15s ease, color .15s ease, transform .15s ease;
  }
  .review-tab:hover{
    background: var(--bt-navy);
    color: #fff;
    transform: translateY(-2px);
  }
  .review-tab.active{
    background: var(--bt-navy);
    color: #fff;
  }

  .review-intro{
    color: #2c2c2c;
    font-size: 14.5px;
    line-height: 1.7;
    margin-bottom: 22px;
    max-width: 1080px;
    margin-left: auto;
    margin-right: auto;
  }

  /* Tab panels — only the active one shows */
  .review-panel{ display: none; }
  .review-panel.active{ display: block; }

  /* Datasheet table */
  .review-table-wrap{
    overflow-x: auto;
    border-radius: 4px;
  }
  .review-table{
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: #fff;
    min-width: 800px;
  }
  .review-table thead.cat-header tr th{
    background: var(--bt-navy);
    color: #fff;
    text-align: left;
    padding: 14px 18px;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.2px;
  }
  .review-table thead.col-header tr th{
    background: #fff;
    color: var(--bt-navy);
    text-align: left;
    padding: 12px 16px;
    border: 1px solid #e5e5e5;
    font-weight: 700;
    font-size: 14px;
  }
  .review-table tbody td{
    border: 1px solid #e5e5e5;
    padding: 14px 16px;
    vertical-align: top;
    color: #2c2c2c;
    line-height: 1.5;
  }
  .review-table tbody td:first-child a,
  .review-table tbody td a.dl{
    color: var(--bt-navy);
    text-decoration: underline;
    text-underline-offset: 2px;
    font-weight: 500;
  }
  .review-table tbody td:first-child a:hover,
  .review-table tbody td a.dl:hover{
    color: var(--bt-orange);
  }
  .review-table .dl{
    color: var(--bt-navy);
    font-weight: 500;
  }
  .review-table .nodata{
    color: #999;
  }

  @media (max-width: 991.98px){
    .bt-reviewsheets{ padding: 60px 0; }
  }
  @media (max-width: 767.98px){
    .bt-reviewsheets{ padding: 50px 0 60px; }
    .review-heading{ margin-bottom: 12px; }
    .review-tab{ padding: 9px 18px; font-size: 13px; }
    .review-table{ font-size: 13px; }
    .review-table thead.col-header tr th,
    .review-table tbody td{ padding: 10px 12px; }
  }