.chart {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: repeat(30, minmax(0, 1fr));
  gap: 80px 12px;
  width: min(1720px, 100%);
  margin: 0 auto;
  padding: 0px 20px;
}

.chart,
.chart * {
  box-sizing: border-box;
}

.connections {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.connections path {
  fill: none;
  stroke: #909090;
  stroke-width: 1.2;
  vector-effect: non-scaling-stroke;
}

.company {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 0;
  min-height: 175px;
  padding: 24px 14px;
  border: 1px solid #102650;
  border-radius: 22px;
  background: #fff;
  color: #102650;
  text-align: center;
  text-decoration: none;
  font-size: clamp(15px, 1.6vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

#holding{
  justify-content: center;
}

.company--dark {
  color: #fff;
  background: #102650;
}

.company img {
  display: block;
  flex-shrink: 0;
  width: auto;
  height: 40px;
  max-width: 100%;
  object-fit: contain;
}

a.company[href]:hover {
  background: #f2f5fa;
  text-decoration: none;
}

a.company.company--dark[href]:hover {
  background: #193867;
}

a.company[href]:focus-visible {
  outline: 3px solid #102650;
  outline-offset: 4px;
}

/* Holding */
#holding {
  grid-column: 11 / 21;
  grid-row: 1;
  min-height: 210px;
  font-size: clamp(28px, 4vw, 42px);
}

/* Second level */
#freese {
  grid-column: 1 / 11;
  grid-row: 2;
}

#floor {
  grid-column: 11 / 21;
  grid-row: 2;
}

#ftk {
  grid-column: 21 / 31;
  grid-row: 2;
}

/* Third level */
#marine_flooring {
  grid-column: 1 / 7;
  grid-row: 3;
  border-color: #19c5c3;
}

#coatings {
  grid-column: 7 / 13;
  grid-row: 3;
  border-color: #a9431e;
}

#construction {
  grid-column: 13 / 19;
  grid-row: 3;
  border-color: #43b02a;
}

#korea {
  grid-column: 19 / 25;
  grid-row: 3;
}

#india {
  grid-column: 25 / 31;
  grid-row: 3;
}

/* Tablet */
@media (min-width: 651px) and (max-width: 1000px) {
  .chart {
    gap: 64px 8px;
  }

  .company {
    min-height: 150px;
    padding: 18px 8px;
    border-radius: 16px;
    font-size: 15px;
  }

  #holding {
    min-height: 175px;
  }
}

/* Mobile */
@media (max-width: 650px) {
  .chart {
    grid-template-columns: 20px 20px minmax(0, 1fr);
    gap: 28px 0;
  }

  .company {
    min-height: 120px;
    padding: 20px 16px;
    border-radius: 18px;
    font-size: 18px;
  }

  #holding {
    grid-column: 1 / 4;
    grid-row: 1;
    min-height: 150px;
    font-size: 32px;
  }

  #freese {
    grid-column: 2 / 4;
    grid-row: 2;
  }

  #marine_flooring {
    grid-column: 3 / 4;
    grid-row: 3;
  }

  #coatings {
    grid-column: 3 / 4;
    grid-row: 4;
  }

  #construction {
    grid-column: 3 / 4;
    grid-row: 5;
  }

  #korea {
    grid-column: 3 / 4;
    grid-row: 6;
  }

  #india {
    grid-column: 3 / 4;
    grid-row: 7;
  }

  #floor {
    grid-column: 2 / 4;
    grid-row: 8;
  }

  #ftk {
    grid-column: 2 / 4;
    grid-row: 9;
  }
}