/* Сброс стилей для изоляции калькулятора */
.vat-calculator-container * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.vat-calculator-container {
  max-width: 900px;
  margin: 20px auto;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: #333;
  line-height: 1.5;
  padding: 0 15px;
}

/* Заголовок */
.vat-header {
  text-align: center;
  margin-bottom: 30px;
}

.vat-header h1 {
  font-size: 32px;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vat-header p {
  font-size: 16px;
  color: #718096;
}

/* Карточка калькулятора */
.vat-calculator-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin-bottom: 30px;
}

/* Шапка калькулятора */
.vat-calculator-header {
  background: linear-gradient(135deg, #38b2ac 0%, #319795 100%);
  padding: 20px;
  color: white;
}

.vat-calculator-header h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
  text-align: center;
}

.vat-calculator-header p {
  text-align: center;
  opacity: 0.9;
  font-size: 14px;
  margin-bottom: 15px;
}

/* Переключатели режимов */
.vat-tab-group {
  display: flex;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 4px;
  margin: 0 auto;
  max-width: 300px;
}

.vat-tab-button {
  flex: 1;
  padding: 10px 15px;
  border-radius: 6px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.vat-tab-button.vat-tab-active {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Тело калькулятора */
.vat-calculator-body {
  padding: 25px;
}

/* Сетка для ПК */
.vat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

/* Группы ввода */
.vat-input-group {
  margin-bottom: 20px;
}

.vat-label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: #2d3748;
  font-size: 15px;
}

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

.vat-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.2s ease;
  background: white;
}

.vat-input:focus {
  outline: none;
  border-color: #38b2ac;
  box-shadow: 0 0 0 3px rgba(56, 178, 172, 0.2);
}

.vat-currency {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #a0aec0;
}

.vat-select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 16px;
  background: white;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
}

.vat-select:focus {
  outline: none;
  border-color: #38b2ac;
  box-shadow: 0 0 0 3px rgba(56, 178, 172, 0.2);
}

/* Кнопки */
.vat-button {
  display: flex;
  width: 100%;
  justify-content: center;
  align-items: center;
  padding: 14px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  gap: 8px;
}

.vat-button-primary {
  background: #38b2ac;
  color: white;
}

.vat-button-primary:hover {
  background: #319795;
}

.vat-button-secondary {
  background: #4299e1;
  color: white;
}

.vat-button-secondary:hover {
  background: #3182ce;
}

/* Группа результатов */
.vat-result-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Карточка результата */
.vat-result-card {
  background: #f7fafc;
  border-radius: 8px;
  padding: 18px;
  border-left: 4px solid #38b2ac;
}

.vat-result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.vat-result-label {
  color: #4a5568;
  font-size: 15px;
}

.vat-result-value {
  font-weight: 600;
  color: #2d3748;
  font-size: 17px;
}

.vat-result-total .vat-result-value {
  font-size: 20px;
  color: #2c7a7b;
}

.vat-result-words {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: #718096;
  margin-top: 8px;
}

.vat-copy-button {
  background: none;
  border: none;
  color: #a0aec0;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.vat-copy-button:hover {
  color: #38b2ac;
  background: rgba(56, 178, 172, 0.1);
}

/* Подвал калькулятора */
.vat-calculator-footer {
  background: #f7fafc;
  padding: 15px 25px;
  text-align: center;
  color: #718096;
  font-size: 14px;
  border-top: 1px solid #e2e8f0;
}

/* История расчетов */
.vat-history-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.vat-history-header {
  padding: 20px;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.vat-history-title {
  font-size: 18px;
  font-weight: 600;
  color: #2d3748;
  display: flex;
  align-items: center;
  gap: 8px;
}

.vat-clear-history {
  background: none;
  border: none;
  color: #e53e3e;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.vat-clear-history:hover {
  background: rgba(229, 62, 62, 0.1);
}

.vat-history-body {
  padding: 20px;
}

.vat-history-list {
  max-height: 300px;
  overflow-y: auto;
}

.vat-history-item {
  padding: 15px;
  border-bottom: 1px solid #e2e8f0;
  transition: background 0.2s ease;
}

.vat-history-item:hover {
  background: #f7fafc;
}

.vat-history-item:last-child {
  border-bottom: none;
}

.vat-history-content {
  margin-bottom: 8px;
}

.vat-history-description {
  font-weight: 500;
  color: #2d3748;
  margin-bottom: 4px;
}

.vat-history-words {
  font-size: 13px;
  color: #718096;
  margin-bottom: 6px;
}

.vat-history-date {
  font-size: 12px;
  color: #a0aec0;
}

.vat-history-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.vat-history-button {
  background: none;
  border: none;
  color: #a0aec0;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
}

.vat-history-button:hover {
  background: #edf2f7;
  color: #4a5568;
}

.vat-history-empty {
  text-align: center;
  padding: 30px;
  color: #a0aec0;
}

/* Анимации */
@keyframes vat-fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.vat-animate-fade-in {
  animation: vat-fadeIn 0.3s ease-out forwards;
}

@keyframes vat-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.vat-copy-success {
  color: #38b2ac;
  animation: vat-pulse 0.5s;
}

/* Адаптивность для мобильных */
@media (max-width: 768px) {
  .vat-calculator-container {
    padding: 0 10px;
  }
  
  .vat-header h1 {
    font-size: 26px;
  }
  
  .vat-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .vat-calculator-body {
    padding: 20px;
  }
  
  .vat-tab-group {
    flex-direction: column;
    max-width: 100%;
  }
  
  .vat-tab-button {
    padding: 12px;
  }
  
  .vat-result-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  
  .vat-result-value {
    font-size: 16px;
  }
  
  .vat-result-total .vat-result-value {
    font-size: 18px;
  }
  
  .vat-history-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  
  .vat-history-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

/* Для очень маленьких экранов */
@media (max-width: 480px) {
  .vat-header h1 {
    font-size: 22px;
  }
  
  .vat-calculator-header h2 {
    font-size: 19px;
  }
  
  .vat-calculator-body {
    padding: 15px;
  }
  
  .vat-input, .vat-select {
    padding: 12px 14px;
  }
  
  .vat-button {
    padding: 12px 16px;
    font-size: 15px;
  }
  
  .vat-result-card {
    padding: 15px;
  }
}