:root {
  --qtm-royal-blue: rgb(0, 40, 120);
  --qtm-sky-blue: rgb(0, 182, 241);
  --qtm-red: rgb(133, 7, 8);
  --qtm-black: rgb(0, 0, 0);
  --qtm-white: rgb(255, 255, 255);
  --qtm-gray: rgb(128, 128, 128);
  --qtm-light-gray: rgb(211, 211, 211);
  --qtm-gold: rgb(255, 215, 0);
  --qtm-green: rgb(0, 128, 0);
  --qtm-orange: rgb(255, 165, 0);
  --qtm-purple: rgb(128, 0, 128);
  --qtm-blue-secondary: rgb(0, 122, 204);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, var(--qtm-royal-blue) 0%, #001a4d 100%);
  color: var(--qtm-white);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 30px;
  position: relative;
}

.settings-button {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--qtm-sky-blue);
  border-radius: 4px;
  background: transparent;
  color: var(--qtm-sky-blue);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.settings-button:hover {
  background: var(--qtm-sky-blue);
  color: var(--qtm-royal-blue);
}

.back-button {
  position: absolute;
  top: 0;
  left: 52px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--qtm-sky-blue);
  border-radius: 4px;
  background: transparent;
  color: var(--qtm-sky-blue);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.back-button:hover {
  background: var(--qtm-sky-blue);
  color: var(--qtm-royal-blue);
}

.logout-button {
  position: absolute;
  top: 0;
  right: 0;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--qtm-sky-blue);
  border-radius: 4px;
  background: transparent;
  color: var(--qtm-sky-blue);
  cursor: pointer;
  transition: all 0.2s;
}

.logout-button:hover {
  background: var(--qtm-sky-blue);
  color: var(--qtm-royal-blue);
}

.logo {
  height: 60px;
  margin-bottom: 20px;
}

h1 {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--qtm-sky-blue);
}

.main-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.config-panel {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.config-section {
  margin-bottom: 30px;
}

.config-section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: 1.3rem;
  color: var(--qtm-sky-blue);
  margin-bottom: 20px;
  font-weight: 500;
  border-bottom: 2px solid var(--qtm-sky-blue);
  padding-bottom: 8px;
}

.form-group {
  margin-bottom: 25px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-size: 1rem;
  font-weight: 500;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

input[type="range"] {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--qtm-light-gray);
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--qtm-sky-blue);
  cursor: pointer;
  transition: all 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--qtm-white);
  transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--qtm-sky-blue);
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

input[type="range"]::-moz-range-thumb:hover {
  background: var(--qtm-white);
  transform: scale(1.2);
}

.slider-value {
  min-width: 50px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--qtm-sky-blue);
}

.radio-group, .checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.radio-option, .checkbox-option {
  display: flex;
  align-items: center;
  gap: 10px;
}

input[type="radio"], input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--qtm-sky-blue);
}

.visualization-panel {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.rack-image {
  max-width: 30%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  margin-bottom: 15px;
}

.config-summary {
  background: rgba(0, 182, 241, 0.1);
  border-left: 4px solid var(--qtm-sky-blue);
  padding: 20px;
  border-radius: 8px;
  text-align: left;
  font-size: 1.1rem;
  line-height: 1.6;
}

.bom-container {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  padding: 20px;
  text-align: left;
}

.bom-title {
  font-size: 1.2rem;
  color: var(--qtm-sky-blue);
  margin-bottom: 15px;
  font-weight: 500;
}

.bom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.bom-table th,
.bom-table td {
  padding: 10px 8px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.bom-table th {
  color: var(--qtm-sky-blue);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.bom-table tbody tr:hover {
  background: rgba(0, 182, 241, 0.1);
}

.bom-table .model-cell {
  font-family: 'Courier New', monospace;
  font-weight: 500;
  color: var(--qtm-white);
}

.bom-table .qty-cell {
  text-align: center;
  font-weight: 600;
}

.bom-table .price-cell {
  text-align: right;
  font-family: 'Courier New', monospace;
}

.bom-table tfoot {
  border-top: 2px solid var(--qtm-sky-blue);
}

.bom-table .total-row td {
  padding-top: 15px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--qtm-sky-blue);
}

.bom-table .total-row td:last-child {
  text-align: right;
  font-family: 'Courier New', monospace;
}

.details-button {
  margin-top: 20px;
  padding: 12px 30px;
  background: var(--qtm-sky-blue);
  color: var(--qtm-royal-blue);
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
}

.details-button:hover:not(:disabled) {
  background: var(--qtm-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 182, 241, 0.4);
}

.details-button:disabled {
  background: var(--qtm-gray);
  color: var(--qtm-light-gray);
  cursor: not-allowed;
  opacity: 0.6;
}

@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .config-panel, .visualization-panel {
    padding: 20px;
  }

  h1 {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.1rem;
  }
}