* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: #f0f2f5;
  padding: 20px;
}

.calculator {
  max-width: 1000px;
  margin: 0 auto;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #1a73e8;
  margin-bottom: 25px;
  font-size: 26px;
}

.input-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 25px;
}

.section-title {
  color: #5f6368;
  font-weight: 500;
  margin-bottom: 15px;
  padding-bottom: 5px;
  border-bottom: 2px solid #eee;
}

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

label {
  display: block;
  margin-bottom: 6px;
  color: #202124;
  font-size: 14px;
}

select,
input {
  width: 100%;
  padding: 10px;
  border: 1px solid #dadce0;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.customs-rates-section {
  background: #f8f9fa;
  padding: 20px;
  border-radius: 8px;
  margin: 25px 0;
  transition: opacity 0.3s;
}

.disabled-section {
  opacity: 0.6;
  pointer-events: none;
}

.checkbox {
  width: 40px !important;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0;
}

.checkbox-custom {
  width: 18px;
  height: 18px;
  border: 2px solid #1a73e8;
  border-radius: 4px;
  position: relative;
}

.checkbox-custom::after {
  content: '✓';
  position: absolute;
  top: -2px;
  left: 1px;
  color: #1a73e8;
  opacity: 0;
}

input[type='checkbox']:checked ~ .checkbox-custom::after {
  opacity: 1;
}

button {
  background: #1a73e8;
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 15px;
  transition: background 0.2s;
  width: 100%;
}

.person-type-selector {
  display: flex;
}

.results-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 25px;
}

.result-block {
  padding: 20px;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #1a73e8;
}

.error-message {
  padding: 15px;
  margin: 20px 0;
  background: #ffebee;
  color: #b71c1c;
  border-radius: 4px;
  border: 1px solid #ffcdd2;
}

.breakdown table {
  width: 100%;
  margin: 15px 0;
  border-collapse: collapse;
}

.breakdown td {
  padding: 8px;
  border-bottom: 1px solid #eee;
}

.breakdown tr:last-child td {
  border-bottom: none;
}

.breakdown td:first-child {
  color: #5f6368;
}

.breakdown td:last-child {
  text-align: right;
  font-weight: 500;
}

.total {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 2px solid #1a73e8;
}

.exchange-rates {
  margin-top: 15px;
  color: #666;
  font-size: 0.9em;
}

/* Для группировки полей */
#usaFields, #chinaField {
  margin: 15px 0;
  padding: 10px;
  border-left: 3px solid #007bff;
}

.input-group {
  margin-bottom: 12px;
}