.pcc-root {
    --pc-primary: #f97316;
    --pc-primary-soft: rgba(249, 115, 22, 0.1);
    --pc-bg: #fff;
    --pc-card-bg: #f8fafc;
    --pc-border: #e2e8f0;
    --pc-text-main: #1e293b;
    --pc-text-muted: #64748b;
    --pc-text-light: #94a3b8;
    --pc-success: #16a34a;
    --pc-energy: #eab308;
    --pc-machine: #8b5cf6;
    --pc-labor: #06b6d4;
    --pc-gradient-start: #fffcf9;
    --pc-gradient-end: #fff7ed;
    --pc-tip-bg: #fff7ed;
    --pc-tip-text: #9a3412;
    --pc-shadow: rgba(0, 0, 0, 0.05);

    padding: 2.5rem;
    background: var(--pc-bg);
    border: 1px solid var(--pc-border);
    border-radius: 2.5rem;
    box-shadow: 0 20px 50px -10px var(--pc-shadow);
    box-sizing: border-box;
    min-width: 0;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
  }

  .pcc-root *,
  .pcc-root *::before,
  .pcc-root *::after {
    box-sizing: inherit;
  }

  .theme-dark .pcc-root {
    --pc-bg: rgba(15, 23, 42, 0.6);
    --pc-card-bg: rgba(255, 255, 255, 0.03);
    --pc-border: rgba(255, 255, 255, 0.1);
    --pc-text-main: #f1f5f9;
    --pc-text-muted: #94a3b8;
    --pc-text-light: #64748b;
    --pc-gradient-start: #1e293b;
    --pc-gradient-end: #0f172a;
    --pc-tip-bg: #1c1917;
    --pc-tip-text: #fdba74;
    --pc-shadow: rgba(0, 0, 0, 0.3);
    
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .calculator-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3.5rem;
  }

  @media (max-width: 950px) {
    .calculator-grid {
      grid-template-columns: 1fr;
      gap: 2.5rem;
    }
  }

  .control-panel {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    min-width: 0;
  }

  .section-card {
    background: var(--pc-card-bg);
    padding: 2rem;
    border-radius: 2rem;
    border: 1px solid var(--pc-border);
    min-width: 0;
  }

  .section-card h3 {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--pc-primary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .control-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
  }

  .control-group label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--pc-text-muted);
    display: flex;
    justify-content: space-between;
  }

  .input-container {
    position: relative;
    display: flex;
    align-items: center;
  }

  .input-container input {
    min-width: 0;
    width: 100%;
    background: var(--pc-bg);
    border: 2px solid var(--pc-border);
    color: var(--pc-text-main);
    padding: 0.85rem 1.25rem;
    border-radius: 1rem;
    font-size: 1.15rem;
    font-weight: 700;
    outline: none;
    transition: all 0.2s ease;
  }

  .input-container input:focus {
    border-color: var(--pc-primary);
    box-shadow: 0 0 0 4px var(--pc-primary-soft);
  }

  .input-container .unit-tag {
    position: absolute;
    right: 1.25rem;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--pc-text-light);
    text-transform: uppercase;
  }

  .range-control {
    width: 100%;
    accent-color: var(--pc-primary);
    height: 6px;
    background: var(--pc-border);
    border-radius: 10px;
    cursor: pointer;
  }

  .results-panel {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    min-width: 0;
  }

  .total-card {
    background: linear-gradient(135deg, var(--pc-gradient-start), var(--pc-gradient-end));
    padding: 3.5rem 2rem;
    border-radius: 2.5rem;
    border: 1px solid var(--pc-border);
    text-align: center;
    box-shadow: 0 15px 30px -5px var(--pc-primary-soft);
  }

  .total-label {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--pc-primary);
    text-transform: uppercase;
    letter-spacing: 0.25em;
    margin-bottom: 1.5rem;
    display: block;
  }

  .total-value {
    font-size: 5.5rem;
    font-weight: 900;
    color: var(--pc-text-main);
    line-height: 0.9;
    letter-spacing: -0.05em;
  }

  .suggested-price {
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 2px dashed var(--pc-border);
  }

  .suggested-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--pc-text-muted);
    margin-bottom: 0.5rem;
    display: block;
  }

  .suggested-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--pc-success);
    display: block;
    margin-bottom: 1.5rem;
  }

  .breakdown-chart {
    background: var(--pc-card-bg);
    padding: 2.5rem;
    border-radius: 2rem;
    border: 1px solid var(--pc-border);
  }

  .chart-title {
    font-size: 0.8rem;
    font-weight: 900;
    color: var(--pc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 2rem;
    text-align: center;
  }

  .bars-container {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .bar-row {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--pc-text-muted);
  }

  .bar-wrapper {
    height: 14px;
    background: var(--pc-border);
    border-radius: 8px;
    overflow: hidden;
  }

  .bar-fill {
    height: 100%;
    transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .bar-material {
    background: var(--pc-primary);
    box-shadow: 0 0 15px var(--pc-primary-soft);
  }

  .bar-energy {
    background: var(--pc-energy);
    box-shadow: 0 0 15px rgba(234, 179, 8, 0.3);
  }

  .bar-machine {
    background: var(--pc-machine);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
  }

  .bar-labor {
    background: var(--pc-labor);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
  }

  .pro-tip {
    padding: 1.5rem;
    background: var(--pc-tip-bg);
    border-left: 6px solid var(--pc-primary);
    border-radius: 1rem;
    font-size: 0.95rem;
    color: var(--pc-tip-text);
    line-height: 1.6;
    font-weight: 500;
  }

  @media (max-width: 600px) {
    .pcc-root {
      padding: 0.875rem;
      border-radius: 1.125rem;
      max-width: 100%;
    }

    .calculator-grid,
    .control-panel,
    .results-panel {
      gap: 1rem;
    }

    .section-card {
      padding: 1rem;
      border-radius: 1rem;
    }

    .section-card h3 {
      margin-bottom: 1.25rem;
    }

    .total-card {
      padding: 1.75rem 1rem;
      border-radius: 1.25rem;
    }

    .total-value {
      font-size: 3rem;
    }

    .suggested-value {
      font-size: 2rem;
    }

    .breakdown-chart {
      padding: 1.25rem;
    }

    .input-container input {
      padding: 0.7rem 1rem;
      font-size: 1rem;
    }
  }