.bc-root {
    width: 100%;
    max-width: 56rem;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }

  .bc-input-panel {
    background: #fff;
    border-radius: 1.5rem;
    padding: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid #f1f5f9;
  }

  .bc-panel-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
  }

  .bc-panel-icon {
    padding: 0.75rem;
    background: #dbeafe;
    border-radius: 0.75rem;
    color: #2563eb;
    font-size: 1.5rem;
    display: flex;
    flex-shrink: 0;
  }

  .bc-icon {
    width: 1.5rem;
    height: 1.5rem;
  }

  .bc-panel-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
  }

  .bc-panel-desc {
    font-size: 0.875rem;
    color: #94a3b8;
    margin: 0;
  }

  .bc-inputs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  @media (min-width: 768px) {
    .bc-inputs-grid {
      grid-template-columns: 1fr 1fr 1fr;
    }
  }

  .bc-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .bc-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
  }

  .bc-input-wrapper {
    position: relative;
  }

  .bc-input {
    display: block;
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border-radius: 0.75rem;
    background: #f8fafc;
    border: 1px solid transparent;
    color: #1e293b;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
  }

  .bc-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  }

  .bc-unit-label {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 0.875rem;
    pointer-events: none;
  }

  .bc-unit-switcher {
    display: flex;
    justify-content: flex-end;
    margin-top: 1.5rem;
  }

  .bc-unit-toggle {
    display: inline-flex;
    background: #f1f5f9;
    padding: 0.25rem;
    border-radius: 0.5rem;
    gap: 0.25rem;
  }

  .bc-unit-btn {
    padding: 0.375rem 1rem;
    border-radius: 0.375rem;
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    color: #64748b;
    background: transparent;
  }

  [data-bc-unit][data-bc-active='true'] {
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    color: #1e293b;
  }

  .bc-blueprint {
    background: #1e3a8a;
    border-radius: 1.5rem;
    padding: 0.25rem;
    box-shadow: 0 12px 40px rgba(30, 58, 138, 0.3);
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.1);
    position: relative;
  }

  .bc-blueprint-grid {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: linear-gradient(#fff 1px, transparent 1px), linear-gradient(90deg, #fff 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
  }

  .bc-blueprint-inner {
    position: relative;
    padding: 1.5rem;
    color: #bfdbfe;
  }

  @media (min-width: 768px) {
    .bc-blueprint-inner {
      padding: 2.5rem;
    }
  }

  .bc-bp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .bc-bp-plan-title {
    font-size: 1.25rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #fff;
    margin: 0 0 0.25rem;
  }

  .bc-bp-ref {
    font-size: 0.75rem;
    opacity: 0.6;
    margin: 0;
  }

  .bc-bp-count-block {
    text-align: right;
  }

  .bc-bp-count {
    font-size: 1.875rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 0.25rem;
    line-height: 1;
  }

  .bc-bp-count-label {
    font-size: 0.625rem;
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0;
  }

  .bc-bp-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
  }

  @media (min-width: 768px) {
    .bc-bp-stats {
      grid-template-columns: 1fr 1fr 1fr 1fr;
    }
  }

  .bc-stat-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(4px);
    padding: 0.75rem;
    border-radius: 0.375rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .bc-stat-label {
    display: block;
    font-size: 0.625rem;
    opacity: 0.5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
  }

  .bc-stat-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: #fff;
  }

  .bc-visualizer {
    width: 100%;
    height: 12rem;
    border: 1px dashed rgba(255, 255, 255, 0.3);
    border-radius: 0.375rem;
    background: rgba(23, 37, 84, 0.5);
    overflow: hidden;
    position: relative;
  }

  @media (min-width: 768px) {
    .bc-visualizer {
      height: 16rem;
    }
  }

  .bc-svg {
    width: 100%;
    height: 100%;
  }

  .bc-disclaimer {
    text-align: center;
    font-size: 0.75rem;
    opacity: 0.4;
    margin-top: 1rem;
    margin-bottom: 0;
  }

  .theme-dark .bc-input-panel {
    background: #18181b;
    border-color: rgba(51, 65, 85, 0.4);
  }

  .theme-dark .bc-panel-icon {
    background: rgba(30, 58, 138, 0.3);
  }

  .theme-dark .bc-panel-title {
    color: #f1f5f9;
  }

  .theme-dark .bc-label {
    color: #94a3b8;
  }

  .theme-dark .bc-input {
    background: #27272a;
    color: #f1f5f9;
  }

  .theme-dark .bc-input:focus {
    border-color: #3b82f6;
  }

  .theme-dark .bc-unit-toggle {
    background: #27272a;
  }

  .theme-dark [data-bc-unit][data-bc-active='true'] {
    background: #3f3f46;
    color: #f1f5f9;
  }

  .theme-dark .bc-blueprint {
    background: #0f172a;
  }