:root {
  --calc-primary: #102c57;
  --calc-primary-light: #1a3c72;
  --calc-bg: #ffffff;
  --calc-text: #1e293b;
  --calc-text-light: #64748b;
  --calc-border: #e2e8f0;
  --calc-success: #059669;
  --calc-error: #dc2626;
  --calc-radius: 8px;
  --calc-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.calculator-trigger-wrapper {
  margin: 1.5rem 0;
}

.calculator-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background-color: var(--calc-primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--calc-radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--calc-shadow);
}

.calculator-trigger-btn:hover {
  background-color: var(--calc-primary-light);
  transform: translateY(-1px);
}

.calculator-trigger-btn .trigger-icon svg {
  width: 20px;
  height: 20px;
}

.calculator-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease-out;
}

.calculator-modal-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.calculator-modal-content {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: 95vh;
  overflow-y: auto;
  overflow-x: hidden;
  background: white;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  transform: scale(0.95);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.calculator-modal-overlay.is-visible .calculator-modal-content {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 12px;
  left: 20px;
  width: 32px;
  min-height: 32px;
  border-radius: 6px !important;
  background: #e2e4e5;
  border: none;
  color: var(--calc-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 20;
  padding: 0;
  margin: 0;
}

.modal-close-btn:hover {
  background: #e2e8f0;
  color: var(--calc-text);
}

.product-price-calculator {
  display: flex;
  flex-direction: column;
}

.calculator-header {
  padding: 20px 24px;
  background: #f8fafc;
  border-bottom: 1px solid var(--calc-border);
  text-align: center;
}

.calculator-title {
  color: var(--calc-primary);
  font-size: 18px;
  font-weight: 700;
  margin: 0;
}

.calculator-body {
  padding: 0;
  position: relative;
  overflow: hidden;
}

.calculator-form-panel {
  padding: 24px;
}

.calculator-result-panel {
  overflow: hidden;
  transform: translateY(-20px);
  opacity: 0;
  max-height: 0;
  transition: transform 0.35s ease, opacity 0.35s ease, max-height 0.35s ease;
}

.calculator-result-panel.is-active {
  transform: translateY(0);
  opacity: 1;
  max-height: 800px;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: var(--calc-text);
  margin-bottom: 6px;
}

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

.form-control {
  width: 100%;
  padding: 10px 12px;
  padding-left: 45px;
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius);
  font-size: 15px;
  transition: all 0.2s;
  background: white;
  text-align: left;
  direction: ltr;
}

[dir='rtl'] .form-control {
  padding-left: 12px;
  padding-right: 12px;
}

.form-control:focus {
  outline: none;
  border-color: var(--calc-primary);
  box-shadow: 0 0 0 3px rgba(16, 44, 87, 0.1);
}

.under-100-notice {
  margin-top: 8px;
  font-size: 12px;
  color: var(--calc-primary);
  padding: 10px 12px;
  background: #f0f4ff;
  border-radius: 6px;
  border-right: 3px solid var(--calc-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.6;
}

.under-100-notice .notice-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.under-100-notice .notice-phone {
  color: var(--calc-primary);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px dashed var(--calc-primary);
}

.under-100-notice .notice-phone:hover {
  border-bottom-style: solid;
}

.radio-group {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.radio-group-print .radio-option {
  flex: 0 0 calc(33.33% - 4px);
}

.radio-option {
  flex: 1;
  position: relative;
  cursor: pointer;
}

.radio-option input {
  position: absolute;
  opacity: 0;
}

.radio-box {
  display: block;
  text-align: center;
  padding: 8px 4px;
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius);
  background: white;
  font-size: 13px;
  font-weight: 500;
  color: var(--calc-text-light);
  transition: all 0.2s;
}

.radio-option input:checked + .radio-box {
  background: var(--calc-primary);
  border-color: var(--calc-primary);
  color: white;
}

.calculator-btn {
  width: 100%;
  padding: 12px;
  background: var(--calc-primary);
  color: white;
  border: none;
  border-radius: var(--calc-radius);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 6px;
}

.calculator-btn:hover:not(:disabled) {
  background: var(--calc-primary-light);
}

.calculator-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: #94a3b8;
}

.calculator-btn.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.calculator-btn.loading::before {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.calculator-btn.recalc-mode {
  background: #f1f5f9;
  color: var(--calc-text);
  border: 1px solid var(--calc-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.calculator-btn.recalc-mode:hover {
  background: #e2e8f0;
}

.result-box {
  padding: 0 24px 24px 24px;
}

.invoice-card {
  border: 1px solid var(--calc-border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.invoice-header {
  background: linear-gradient(135deg, var(--calc-primary) 0%, var(--calc-primary-light) 100%);
  padding: 14px 18px;
  color: white;
}

.invoice-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.invoice-title {
  font-size: 16px;
  font-weight: 700;
}

.invoice-badge {
  background: rgba(255,255,255,0.2);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}

.invoice-meta {
  font-size: 11px;
  opacity: 0.8;
}

.invoice-table {
  width: 100%;
  border-collapse: collapse;
}

.invoice-table thead {
  background: #f8fafc;
}

.invoice-table th {
  padding: 8px 14px;
  font-size: 11px;
  font-weight: 600;
  color: var(--calc-text-light);
  text-align: right;
  border-bottom: 1px solid var(--calc-border);
}

.invoice-table .invoice-th-num {
  width: 40px;
  text-align: center !important;
  padding-left: 0;
}

.invoice-table .invoice-th-value {
  width: 40%;
  padding-right: 0;
}

.invoice-table td {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--calc-text);
  border-bottom: 1px solid #f1f5f9;
}

.invoice-table .invoice-row-num {
  text-align: center;
  color: var(--calc-text-light);
  font-size: 11px;
  padding-left: 0 !important;
}

.invoice-table .invoice-row-label {
  color: var(--calc-text-light);
  font-weight: 500;
}

.invoice-table .invoice-row-value {
  font-weight: 600;
  text-align: right;
  padding-right: 0 !important;
}

.invoice-discount {
  color: var(--calc-primary) !important;
}

.invoice-discount-row td {
  background: #e1e6f1;
}

.invoice-total-section {
  padding: 14px 18px;
  background: #f8fafc;
  border-top: 2px solid var(--calc-border);
}

.invoice-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.invoice-total-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--calc-text);
}

.invoice-total-price {
  font-size: 22px;
  font-weight: 800;
  color: var(--calc-primary);
}

.invoice-total-price small {
  font-size: 12px;
  font-weight: 500;
  color: var(--calc-text-light);
}

.invoice-print-note {
  padding: 10px 18px;
  background: #fff7ed;
  border-top: 1px solid #fed7aa;
  font-size: 12px;
  color: #92400e;
  display: flex;
  align-items: center;
  gap: 6px;
}

.invoice-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--calc-border);
}

.invoice-disclaimer {
  font-size: 14px;
  color: var(--calc-text-light);
  line-height: 1.5;
  margin: 0 0 12px 0;
}

.invoice-actions {
  display: flex;
  gap: 8px;
}

.btn-invoice {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 9px 8px;
  border-radius: var(--calc-radius);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-invoice-call {
  background: var(--calc-primary);
  color: white;
}

.btn-invoice-wa {
  background: #25d366;
  color: white;
}

.btn-invoice-recalc {
  background: #f1f5f9;
  color: var(--calc-text);
  border: 1px solid var(--calc-border);
}

.btn-invoice:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  color: #fff;
}

.btn-invoice-recalc:hover {
  background: #e2e8f0;
}

.calculator-header,
.calculator-footer {
  padding: 14px 24px;
}

.calculator-footer {
  border-top: 1px solid var(--calc-border);
  background: #f8fafc;
}

.footer-note {
  margin: 0;
  font-size: 11px;
  color: var(--calc-text-light);
  text-align: center;
}

.error-message {
  padding: 12px;
  background: #fef2f2;
  border: 1px solid #fee2e2;
  border-right: 4px solid var(--calc-error);
  border-radius: 6px;
  color: #991b1b;
  font-size: 13px;
  font-weight: 500;
}

@media (min-width: 768px) {
  .calculator-modal-content {
    max-width: 440px;
    overflow: hidden;
    transition: max-width 0.35s ease;
  }

  .calculator-modal-content.is-expanded {
    max-width: 820px;
  }

  .calculator-body {
    display: flex;
    flex-direction: row;
    min-height: 320px;
  }

  .calculator-form-panel {
    flex: 0 0 440px;
    min-width: 0;
    display: flex;
    align-items: center;
  }

  .calculator-form-panel .calculator-form {
    width: 100%;
  }

  .calculator-result-panel {
    flex: 1;
    max-height: none;
    overflow: hidden;
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.3s ease 0.15s, transform 0.3s ease 0.15s;
  }

  .calculator-result-panel.is-active {
    opacity: 1;
    max-height: none;
    transform: translateX(0);
  }

  .is-expanded .calculator-form-panel {
    border-left: 1px solid var(--calc-border);
  }

  .result-box {
    padding: 20px;
    height: 100%;
    display: flex;
    align-items: stretch;
  }

  .invoice-card {
    display: flex;
    flex-direction: column;
    width: 100%;
  }

  .invoice-footer {
    margin-top: auto;
  }
}

[dir='rtl'] .form-control {
  padding-right: 12px;
  padding-left: 45px;
}

[dir='rtl'] .under-100-notice {
  border-right: 3px solid var(--calc-primary);
  border-left: none;
}

[dir='rtl'] .error-message {
  border-right: 4px solid var(--calc-error);
  border-left: none;
}

@media (min-width: 768px) {
  [dir='rtl'] .is-expanded .calculator-form-panel {
    border-left: none;
    border-right: 1px solid var(--calc-border);
  }

  [dir='rtl'] .calculator-result-panel {
    transform: translateX(30px);
  }

  [dir='rtl'] .calculator-result-panel.is-active {
    transform: translateX(0);
  }
}