/* Kraftmetal Calculator Styles */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

#kraftmetal-calc-container {
  background: #fff;
  padding: 25px;
  max-width: 1200px;
  width: 100%;
  margin: 20px auto;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

#kraftmetal-calc-container * {
  box-sizing: border-box;
}

#kraftmetal-calc-container .calculator-title {
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.5em;
  font-weight: 700;
}

#kraftmetal-calc-container .form-group {
  margin-bottom: 15px;
}

#kraftmetal-calc-container .form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
}

#kraftmetal-calc-container .input-field {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: 'Poppins', sans-serif;
}

#kraftmetal-calc-container .btn-calc {
  padding: 10px 20px;
  background-color: #d60b2d;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s;
  font-family: 'Poppins', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#kraftmetal-calc-container .btn-calc:hover {
  background-color: #b50926;
}

#kraftmetal-calc-container .result {
  margin-top: 15px;
  font-weight: bold;
  font-size: 1.1em;
  color: #333;
}

#kraftmetal-calc-container .metal-tabs-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-top: 15px;
  align-items: flex-start;
}

/* Three columns in a row */
#kraftmetal-calc-container .metal-tabs-wrapper > div:not(.tab-image-container) {
  flex: 1 1 calc(33.333% - 20px);
  min-width: 280px;
}

#kraftmetal-calc-container .column-title {
  font-weight: bold;
  margin-bottom: 15px;
  font-size: 1.1em;
  color: #222;
  border-bottom: 2px solid #f0f0f0;
  padding-bottom: 5px;
}

#kraftmetal-calc-container .tab-buttons-vertical.main-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#kraftmetal-calc-container .tab-buttons-vertical.sub-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  max-height: 60vh;
}

#kraftmetal-calc-container .sub-tab-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

#kraftmetal-calc-container .sub-tab-group.hidden {
  display: none;
}

#kraftmetal-calc-container .tab-contents-wrap {
  overflow-y: auto;
  max-height: 60vh;
  padding: 0 10px;
}

/* Image container on new row, full width, centered */
#kraftmetal-calc-container .tab-image-container {
  flex: 0 0 100%;
  width: 100%;
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

#kraftmetal-calc-container .tab-image-wrapper {
  margin-bottom: 20px;
  width: 100%;
  max-width: 600px; /* Limit max size for better look when centered */
}

#kraftmetal-calc-container .tab-image-wrapper img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 0 auto;
}

#kraftmetal-calc-container .tab-disclaimer {
  max-width: 800px;
  margin: 0 auto;
}

#kraftmetal-calc-container .tab-disclaimer p {
  font-size: 0.9em;
  color: #666;
  line-height: 1.6;
  margin-top: 10px;
}

#kraftmetal-calc-container .tab {
  padding: 12px 15px;
  background: #f7f7f7;
  border: none;
  cursor: pointer;
  border-left: 4px solid transparent;
  font-weight: 600;
  text-align: left;
  border-radius: 0 6px 6px 0;
  transition: all 0.3s;
  user-select: none;
  font-family: 'Poppins', sans-serif;
  font-size: 0.95em;
}

#kraftmetal-calc-container .tab:hover {
  background: #eee;
}

#kraftmetal-calc-container .tab.active {
  background: #d60b2d;
  border-left: 4px solid #9c0821;
  color: white;
}

#kraftmetal-calc-container .tab-content {
  display: none;
  padding: 20px;
  background: #fafafa;
  border-radius: 8px;
  border: 1px solid #eee;
}

#kraftmetal-calc-container .tab-content.active {
  display: block;
}

/* Responsive Styles */
@media (max-width: 992px) {
  #kraftmetal-calc-container .metal-tabs-wrapper > div:not(.tab-image-container) {
    flex: 1 1 calc(50% - 15px);
  }
}

@media (max-width: 768px) {
  #kraftmetal-calc-container .metal-tabs-wrapper {
    flex-direction: column;
    gap: 25px;
    align-items: stretch;
  }
  
  #kraftmetal-calc-container .metal-tabs-wrapper > div:not(.tab-image-container) {
    width: 100%;
  }
  
  #kraftmetal-calc-container .tab-buttons-vertical.main-tabs,
  #kraftmetal-calc-container .tab-buttons-vertical.sub-tabs .sub-tab-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  #kraftmetal-calc-container .tab-buttons-vertical.sub-tabs {
    max-height: none;
  }
  
  #kraftmetal-calc-container .tab-contents-wrap {
    max-height: none;
    padding: 0;
  }
  
  #kraftmetal-calc-container .tab {
    text-align: center;
    border-radius: 6px;
    border-left: none;
    border-bottom: 4px solid transparent;
    padding: 10px;
  }
  
  #kraftmetal-calc-container .tab.active {
    border-left: none;
    border-bottom: 4px solid #9c0821;
  }
}

@media (max-width: 480px) {
  #kraftmetal-calc-container .tab-buttons-vertical.main-tabs,
  #kraftmetal-calc-container .tab-buttons-vertical.sub-tabs .sub-tab-group {
    grid-template-columns: 1fr;
  }
}