/* ============================================================
   Rechnungs-Generator — Tool-spezifisches Layout
   ============================================================ */

.invgen-card {
  max-width: 1300px;
  margin: 40px auto var(--space-8);
  padding: var(--space-8);
  background: var(--bg-primary);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

.invgen-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 1fr);
  gap: var(--space-8);
  align-items: start;
}

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

@media (max-width: 640px) {
  .invgen-card { margin-top: 30px; padding: var(--space-5); }
}

.invgen-form-panel { display: flex; flex-direction: column; gap: var(--space-8); }

.invgen-demo-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 14px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(37, 99, 235, 0.02));
  border: 1px dashed var(--color-primary);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.invgen-demo-hint {
  font-size: 12px;
  color: var(--text-secondary);
  flex: 1;
}

@media (max-width: 640px) {
  .invgen-demo-bar { padding: 8px 10px; }
  .invgen-demo-hint { font-size: 11px; }
}

.invgen-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

.invgen-section:last-child { border-bottom: none; padding-bottom: 0; }

.invgen-section-title {
  font-size: 16px;
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin: 0 0 var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.invgen-section-title::before {
  content: '';
  width: 3px;
  height: 18px;
  background: var(--color-primary);
  border-radius: 2px;
}

.invgen-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.invgen-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-3); }
@media (max-width: 640px) {
  .invgen-row-2, .invgen-row-3 { grid-template-columns: 1fr; }
}

.invgen-field { display: flex; flex-direction: column; gap: var(--space-2); }

.invgen-label {
  font-size: 13px;
  font-weight: var(--font-medium);
  color: var(--text-secondary);
}

.invgen-input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  font-size: 14px;
  color: var(--text-primary);
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.invgen-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light, rgba(37, 99, 235, 0.15));
}

textarea.invgen-input { resize: vertical; min-height: 60px; }

.invgen-check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
}

/* --- Tax modes --- */
.invgen-tax-modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}

.invgen-radio {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: 12px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.invgen-radio:hover { border-color: var(--color-primary); }
.invgen-radio input { margin-top: 3px; flex-shrink: 0; }
.invgen-radio span { display: flex; flex-direction: column; gap: 2px; }
.invgen-radio strong { font-size: 13px; color: var(--text-primary); }
.invgen-radio small { font-size: 12px; color: var(--text-secondary); }
.invgen-radio:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light, rgba(37, 99, 235, 0.06));
}

/* --- Items --- */
.invgen-items-head,
.invgen-item-row {
  display: grid;
  grid-template-columns: minmax(0, 3fr) 70px 70px 110px 70px 36px;
  gap: 6px;
  align-items: center;
}

.invgen-items-head {
  font-size: 12px;
  font-weight: var(--font-semibold);
  color: var(--text-secondary);
  padding: 0 4px 6px;
  border-bottom: 1px solid var(--border-color);
}

.invgen-item-row { padding: 6px 0; }
.invgen-item-row .invgen-input { padding: 8px 10px; font-size: 13px; }

.invgen-item-remove {
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.invgen-item-remove:hover { background: #fef2f2; color: #ef4444; }

@media (max-width: 768px) {
  .invgen-items-head { display: none; }
  .invgen-item-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 6px;
  }
}

/* --- Preview panel (right) --- */
.invgen-preview-panel {
  position: sticky;
  top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.invgen-totals-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
}

.invgen-totals-card h3 {
  margin: 0 0 var(--space-3);
  font-size: 14px;
  font-weight: var(--font-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.invgen-totals-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 14px;
}

.invgen-totals-grand {
  border-top: 2px solid var(--text-primary);
  margin-top: 6px;
  padding-top: 10px;
  font-size: 16px;
  font-weight: var(--font-bold);
}

.invgen-totals-grand strong { font-size: 18px; }

.invgen-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.invgen-privacy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0;
  justify-content: center;
}
.invgen-privacy svg { color: var(--color-success, #22c55e); }

.invgen-preview-container { display: none; }

/* --- Modal Popup --- */
.invgen-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
}

.invgen-modal.open { display: block; }

.invgen-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
}

.invgen-modal-panel {
  position: relative;
  margin: 24px auto;
  max-width: 920px;
  width: calc(100% - 48px);
  height: calc(100vh - 48px);
  background: var(--bg-primary);
  border-radius: var(--radius-2xl);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.invgen-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.invgen-modal-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: var(--font-semibold);
}

.invgen-modal-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.invgen-modal-close {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.invgen-modal-close:hover { background: #fef2f2; color: #ef4444; }

.invgen-modal-frame {
  flex: 1;
  width: 100%;
  border: none;
  background: #f1f5f9;
}

@media (max-width: 640px) {
  .invgen-modal-panel { margin: 8px auto; width: calc(100% - 16px); height: calc(100vh - 16px); }
  .invgen-modal-header { padding: 10px 12px; }
}

/* --- SEO Content cards --- */
.invgen-content {
  padding: var(--space-10) 0;
  background: var(--bg-secondary);
}

.invgen-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  max-width: 1200px;
  margin: var(--space-6) auto 0;
}

.invgen-content-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.invgen-content-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.invgen-content-card h3 { font-size: 16px; margin: 0 0 var(--space-3); color: var(--text-primary); }
.invgen-content-card p { margin: 0; color: var(--text-secondary); line-height: var(--leading-relaxed); font-size: 13px; }