:root {
  --tp-primary: #1a3754;
  --tp-text: #ffffff;
  --tp-dark: #010914;
}

body {
  color: var(--tp-text);
  font-family: 'Roboto', sans-serif;
}

.sidebar-title {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  padding: 0;
  line-height: 1.2;
}

.sidebar-title--konfigre {
  color: #fff;
  font-size: 16px;
  font-weight: 500;
}

.item-list {
  background-color: #0000005c;
  border: 1px solid #919191;
  border-radius: 8px;
  padding: 15px;
  margin: 10px 0;
  min-height: 100px;
}

.btn-undo {
  background-color: #1a3754;
  border: 1px solid #919191;
  color: #fff;
  padding: 8px 16px;
  border-radius: 5px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-undo:hover {
  background-color: #2a4a66;
  border-color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-teklif {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  color: #fff;
  padding: 15px 30px;
  border-radius: 10px;
  font-size: 18px;
  font-weight: 700;
  transition: all 0.3s ease;
  cursor: pointer;
  min-width: 200px;
  width: 100%;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-teklif:hover {
  background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.25);
}

.keyboard-options,
.keyboard-dimensions {
  margin-top: 10px;
}

#panelConfigForm .form-input {
  width: calc(100% - 20px) !important;
  border-radius: 8px !important;
  padding: 12px 16px !important;
  border: 2px solid #e2e8f0 !important;
  color: #2d3748 !important;
  background-color: #ffffff !important;
  height: 50px !important;
  line-height: 1.5 !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  font-size: 14px !important;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
  font-weight: 500 !important;
}

#panelConfigForm .form-input:hover {
  border-color: #667eea !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15) !important;
}

#panelConfigForm .form-input:focus {
  outline: none !important;
  border-color: #667eea !important;
  background-color: #f7fafc !important;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1) !important;
  transform: translateY(-1px) !important;
}

#panelConfigForm .form-input::placeholder {
  color: #a0aec0 !important;
  font-weight: 500 !important;
}

#upperCanvas {
  border: 2px solid #919191;
  border-radius: 7px;
  background-color: #0000005c;
  width: 100% !important;
  max-width: 1200px;
  height: auto;
  min-height: 150px;
  display: block;
  margin-bottom: 20px;
  position: relative;
  transition: height 0.5s ease-in-out;
  overflow: hidden;
  padding: 5px;
  box-sizing: border-box;
  will-change: height, width;
}

#lowerCanvas {
  border: 2px solid #919191;
  border-radius: 7px;
  background-color: #0000005c;
  width: 100%;
  max-width: 1200px;
  height: auto;
  display: block;
  margin-bottom: 20px;
  position: relative;
  transition: height 0.5s ease-in-out;
  overflow: hidden;
  padding: 5px;
  box-sizing: border-box;
}

.btn-send:hover {
  background-color: #2a4a66;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

#panelConfigForm .form-check-input[type="radio"] {
  width: 18px !important;
  height: 18px !important;
  border: 2px solid #667eea !important;
  background-color: #ffffff !important;
  margin-right: 10px !important;
  border-radius: 50% !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

#panelConfigForm .form-check-input:checked {
  background-color: #667eea !important;
  border-color: #667eea !important;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1) !important;
}

#panelConfigForm .front-panel-item label {
  color: #4a5568 !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  display: block !important;
  text-align: center !important;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
  font-size: 14px !important;
  letter-spacing: 0.025em !important;
  margin: 0 !important;
  width: 100% !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.front-panel-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 10px;
}

#panelConfigForm .front-panel-options {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 15px !important;
  margin-top: 10px !important;
}

#panelConfigForm .front-panel-item {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 12px 16px !important;
  background-color: #f7fafc !important;
  border-radius: 8px !important;
  border: 2px solid #e2e8f0 !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  position: relative !important;
}

#panelConfigForm .front-panel-item:has(input[type="radio"]:checked) {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  border-color: #667eea !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.25) !important;
}

#panelConfigForm .front-panel-item input[type="radio"] {
  position: absolute !important;
  opacity: 0 !important;
  width: 0 !important;
  height: 0 !important;
  margin: 0 !important;
  border: none !important;
  background: none !important;
}

#panelConfigForm .group {
  background-color: #ffffff !important;
  border: 2px solid #919191 !important;
  padding: 20px;
  border-radius: 10px;
  margin: 0 0 25px 0;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

#panelConfigForm .group:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: #ffffff;
}

#panelConfigForm .sidebar-title {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  color: #fff !important;
  font-size: 18px !important;
  font-weight: 700 !important;
  margin: 0 0 10px 0 !important;
  padding: 10px 12px !important;
  line-height: 1.2 !important;
  text-align: center !important;
  border-radius: 10px !important;
  border: 1px solid #e6ebf5 !important;
  box-shadow: none !important;
  width: 100% !important;
  display: block !important;
}

#panelConfigForm .btn-teklif {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  border: none !important;
  color: #fff !important;
  padding: 15px 30px !important;
  border-radius: 10px !important;
  font-size: 18px !important;
  font-weight: 700 !important;
  transition: all 0.3s ease !important;
  cursor: pointer !important;
  min-width: 200px !important;
  width: 100% !important;
  text-align: center !important;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1) !important;
}

#panelConfigForm .btn-teklif:hover {
  background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.25) !important;
}

.item {
  margin: 8px 0;
}

.item-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 15px 0;
}

.panel-dimension-presets {
  margin-top: 10px;
}

#panelConfigForm .dimension-preset-options {
  grid-template-columns: 1fr 1fr !important;
  gap: 10px !important;
}

#panelConfigForm .dimension-custom-options {
  grid-template-columns: 1fr !important;
}

#panelConfigForm .front-panel-item:has(input[type="radio"]:checked) label {
  color: #fff !important;
}

#panelConfigForm .dimension-preset-options.error {
  outline: 2px solid #e53e3e;
  outline-offset: 4px;
  border-radius: 8px;
}

.panel-custom-dimensions {
  margin-top: 10px;
}

#panelConfigForm .form-input.error,
#panelConfigForm .form-select.error {
  border-color: #e53e3e !important;
  box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.15) !important;
}

#panelConfigForm .form-select {
  background-color: #ffffff !important;
  color: #2d3748 !important;
  border: 2px solid #e2e8f0 !important;
  border-radius: 8px !important;
  padding: 12px 16px !important;
  width: 100% !important;
  height: 50px !important;
  line-height: 1.5 !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
  font-weight: 500 !important;
  font-size: 14px !important;
}

#panelConfigForm .form-select:hover {
  border-color: #667eea !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15) !important;
}

#panelConfigForm .form-select:focus {
  outline: none !important;
  border-color: #667eea !important;
  background-color: #f7fafc !important;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1) !important;
  transform: translateY(-1px) !important;
}

#panelConfigForm .form-select option {
  background-color: #ffffff !important;
  color: #2d3748 !important;
  padding: 8px !important;
  font-weight: 500 !important;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
}

.item input[type="number"],
.item input[type="text"] {
  width: calc(100% - 20px);
  border-radius: 5px;
  padding: 8px 12px;
  border: 1px solid #919191;
  color: #fff;
  background-color: #0c1623;
  height: 40px;
  transition: all 0.3s ease;
  font-size: 14px;
}

.item input[type="number"]:focus,
.item input[type="text"]:focus {
  outline: none;
  border-color: #ffffff;
  background-color: #1a3754;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.2);
}

.item input[type="number"]::placeholder,
.item input[type="text"]::placeholder {
  color: #9aa4ad;
}

#panelConfigForm span {
  color: #4a5568 !important;
  font-weight: 600 !important;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif !important;
  width: 100% !important;
  display: block !important;
  line-height: 1.6 !important;
  font-size: 15px !important;
  margin-bottom: 0px !important;
  letter-spacing: 0.025em !important;
}

@media (max-width: 768px) {
  .item-grid {
    grid-template-columns: 1fr;
    grid-gap: 15px;
  }

  .front-panel-options {
    grid-template-columns: 1fr;
  }

  #panelConfigForm .dimension-preset-options {
    grid-template-columns: 1fr 1fr !important;
  }

  #upperCanvas {
    height: 150px;
    transition: height 0.5s ease-in-out;
    overflow: hidden;
    background-color: transparent;
    border: 2px solid #919191;
    border-radius: 7px;
    padding: 5px;
    box-sizing: border-box;
  }

  #lowerCanvas {
    height: auto;
    padding: 5px;
    background-color: transparent;
    border: 2px solid #919191;
    border-radius: 7px;
    transition: height 0.5s ease-in-out;
    overflow: hidden;
    box-sizing: border-box;
  }

  .col-md-4, .col-md-8 {
    flex: 0 0 100%;
    max-width: 100%;
    margin: 0 10px 20px 10px;
    padding: 12px 15px;
  }
}

.col-md-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}

@media (max-width: 768px) {
  .col-md-4 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}