:root {
  --ctf-bg-card: #fff;
  --ctf-border-card: #e2e8f0;
  --ctf-text-primary: #1e293b;
  --ctf-text-secondary: #64748b;
  --ctf-bg-input: #f8fafc;
  --ctf-border-input: #e2e8f0;
  --ctf-accent: #3b82f6;
  --ctf-accent-hover: #2563eb;
  --ctf-bg-exempt: #dcfce7;
  --ctf-border-exempt: #bbf7d0;
}

.theme-dark {
  --ctf-bg-card: #1e293b;
  --ctf-border-card: #334155;
  --ctf-text-primary: #f1f5f9;
  --ctf-text-secondary: #cbd5e1;
  --ctf-bg-input: #0f172a;
  --ctf-border-input: #334155;
  --ctf-accent: #60a5fa;
  --ctf-accent-hover: #3b82f6;
  --ctf-bg-exempt: rgba(34, 197, 94, 0.1);
  --ctf-border-exempt: rgba(34, 197, 94, 0.3);
}

[data-theme='dark'] {
  --ctf-bg-card: #1e293b;
  --ctf-border-card: #334155;
  --ctf-text-primary: #f1f5f9;
  --ctf-text-secondary: #cbd5e1;
  --ctf-bg-input: #0f172a;
  --ctf-border-input: #334155;
  --ctf-accent: #60a5fa;
  --ctf-accent-hover: #3b82f6;
  --ctf-bg-exempt: rgba(34, 197, 94, 0.1);
  --ctf-border-exempt: rgba(34, 197, 94, 0.3);
}

.ctf-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.ctf-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
  background: var(--ctf-bg-card);
  border: 1px solid var(--ctf-border-card);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.ctf-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ctf-section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ctf-text-secondary);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.ctf-section-title svg {
  color: var(--ctf-accent);
}

.ctf-input-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ctf-input-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ctf-input-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ctf-text-primary);
}

.ctf-input-control {
  padding: 0.75rem;
  padding-right: 2.5rem;
  border: 1px solid var(--ctf-border-input);
  border-radius: 0.5rem;
  background: var(--ctf-bg-input);
  color: var(--ctf-text-primary);
  font-size: 0.875rem;
  transition: all 0.2s;
}

.ctf-input-control:focus {
  outline: none;
  border-color: var(--ctf-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.ctf-main {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ctf-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.ctf-badge-exento {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--ctf-bg-exempt);
  border: 1px solid var(--ctf-border-exempt);
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #16a34a;
}

.ctf-total-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(99, 102, 241, 0.05));
  border-radius: 1rem;
  text-align: center;
}

.ctf-legal-seal {
  color: var(--ctf-accent);
  opacity: 0.3;
}

.ctf-total-amount {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--ctf-accent);
}

.ctf-total-label {
  font-size: 0.875rem;
  color: var(--ctf-text-secondary);
}

.ctf-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
  background: var(--ctf-bg-input);
  border-radius: 1rem;
}

.ctf-breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
}

.ctf-item-label {
  font-size: 0.875rem;
  color: var(--ctf-text-secondary);
  font-weight: 500;
}

.ctf-item-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ctf-text-primary);
}

.ctf-actions-area {
  display: flex;
  gap: 1rem;
}

.ctf-btn-copy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.875rem 1.5rem;
  background: var(--ctf-accent);
  color: white;
  border: none;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.ctf-btn-copy:hover {
  background: var(--ctf-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.ctf-btn-copy:active {
  transform: translateY(0);
}

.ctf-btn-copy svg {
  width: 1.25rem;
  height: 1.25rem;
}

@media (max-width: 768px) {
  .ctf-wrapper {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }
}