:root {
  --toss-primary: #3182f6;
  --toss-secondary: #e2ecfc;
  --toss-success: #20C997;
  --toss-text-primary: #333d4b;
  --toss-text-secondary: #6b7684;
  --toss-background: #f9fafc;
  --toss-card: #ffffff;
  --toss-border: #eaeef2;
  --toss-radius: 14px;
  --toss-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

body {
  background-color: var(--toss-background);
  color: var(--toss-text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  line-height: 1.5;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 16px;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--toss-text-primary);
}

.search-form {
  background-color: var(--toss-card);
  padding: 24px;
  border-radius: var(--toss-radius);
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  box-shadow: var(--toss-shadow);
  border: 1px solid var(--toss-border);
}

.form-group {
  flex: 1;
  min-width: 200px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 14px;
  color: var(--toss-text-secondary);
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--toss-border);
  border-radius: 10px;
  font-size: 16px;
  transition: border 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--toss-primary);
  box-shadow: 0 0 0 3px rgba(49, 130, 246, 0.1);
}

/* 드롭다운 스타일 */
.site-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--toss-border);
  border-radius: 10px;
  font-size: 16px;
  background-color: #fff;
  transition: border 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='gray' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.site-select:focus {
  outline: none;
  border-color: var(--toss-primary);
  box-shadow: 0 0 0 3px rgba(49, 130, 246, 0.1);
}

/* 월 네비게이터 */
.month-navigator {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  flex-wrap: wrap;
}

.month-label {
  font-size: 20px;
  font-weight: 700;
  color: var(--toss-text-primary);
  min-width: 120px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.nav-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--toss-border);
  background-color: #fff;
  color: var(--toss-text-primary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  line-height: 1;
}

.nav-arrow:hover {
  border-color: var(--toss-primary);
  color: var(--toss-primary);
  background-color: var(--toss-secondary);
}

.nav-today,
.nav-custom {
  padding: 7px 16px;
  border-radius: 999px;
  border: 1.5px solid var(--toss-border);
  background-color: #fff;
  color: var(--toss-text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  margin-left: 4px;
}

.nav-today:hover,
.nav-custom:hover {
  border-color: var(--toss-primary);
  color: var(--toss-primary);
  background-color: var(--toss-secondary);
}

.nav-today.active {
  border-color: var(--toss-primary);
  background-color: var(--toss-primary);
  color: #fff;
}

.nav-custom.active {
  border-color: var(--toss-primary);
  background-color: var(--toss-secondary);
  color: var(--toss-primary);
}

.range-inputs {
  width: 100%;
}

.range-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  padding-top: 4px;
}

.btn-primary {
  background-color: var(--toss-primary);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background-color: #2b74db;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background-color: var(--toss-secondary);
  color: var(--toss-primary);
  border: none;
  padding: 12px 20px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: background-color 0.2s, transform 0.1s;
}

.btn-secondary:hover {
  background-color: #d5e3fa;
}

.btn-secondary:active {
  transform: scale(0.98);
}

.btn-link {
  display: inline-block;
  padding: 12px 20px;
  color: var(--toss-primary);
  text-decoration: none;
  font-weight: 500;
}

.results-container {
  margin-top: 32px;
  background-color: var(--toss-card);
  border-radius: var(--toss-radius);
  padding: 24px;
  box-shadow: var(--toss-shadow);
  border: 1px solid var(--toss-border);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s;
}

.results-container.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 총합계 요약 박스 (상단) */
.total-summary-top {
  display: flex;
  gap: 16px;
  margin: 24px 0;
  padding: 24px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.total-summary-top .total-row {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.total-summary-top .total-row + .total-row {
  border-left: 2px solid rgba(255, 255, 255, 0.3);
  padding-left: 16px;
}

.total-summary-top .total-hint {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.75);
}

.total-summary-top .total-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.total-summary-top .total-value {
  font-size: 28px;
  font-weight: 700;
  color: white;
  font-variant-numeric: tabular-nums;
}

.total-summary-top .grand-total-amount {
  font-size: 36px;
}

.settlement-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 20px;
}

.settlement-table th, 
.settlement-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--toss-border);
}

.settlement-table th {
  font-weight: 600;
  color: var(--toss-text-secondary);
  font-size: 14px;
}

.settlement-table td {
  font-size: 15px;
}

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

.settlement-table .text-center {
  text-align: center;
}

.settlement-table .amount {
  text-align: right;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.settlement-table .subtotal {
  background-color: rgba(32, 201, 151, 0.05);
  font-weight: 600;
}

.settlement-table .total {
  background-color: rgba(49, 130, 246, 0.05);
  font-weight: 700;
  font-size: 1.1em;
}

.settlement-table tfoot td {
  border-top: 2px solid var(--toss-primary);
  padding-top: 20px;
  font-size: 18px;
}

.actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
}

@media (max-width: 768px) {
  .search-form {
    flex-direction: column;
    align-items: stretch;
  }
  
  .form-group {
    min-width: 100%;
  }
  
  .actions {
    flex-direction: column;
  }
  
  .btn-primary, .btn-secondary, .btn-link {
    width: 100%;
    text-align: center;
  }
  
  /* 총합계 요약 모바일 */
  .total-summary-top {
    flex-direction: column;
  }
  
  .total-summary-top .total-row + .total-row {
    border-left: none;
    border-top: 2px solid rgba(255, 255, 255, 0.3);
    padding-left: 0;
    padding-top: 16px;
  }
  
  .total-summary-top .total-value {
    font-size: 24px;
  }
  
  .total-summary-top .grand-total-amount {
    font-size: 32px;
  }
}

@media print {
  .search-form, .actions {
    display: none;
  }
  
  .results-container {
    display: block !important;
    box-shadow: none;
    border: none;
  }
}

/* ==================== 팝업 스타일 ================================================ */
.popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
}

.popup-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--toss-card);
  padding: 24px;
  border-radius: var(--toss-radius);
  box-shadow: var(--toss-shadow);
  width: 90%;
  max-width: 1000px;
  max-height: 80vh;
  overflow-y: auto;
}

.close {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 24px;
  cursor: pointer;
  color: var(--toss-text-secondary);
}

.close:hover {
  color: var(--toss-text-primary);
}

/* 상세 테이블 스타일 */
.detail-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 16px;
}

.detail-table th,
.detail-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--toss-border);
}

.detail-table th {
  font-weight: 600;
  color: var(--toss-text-secondary);
  font-size: 14px;
  background-color: #f5f5f5;
}

/* 요일별 배경색 */
.day-sunday, .day-saturday {
  background-color: #fff8e1;
}

.day-friday {
  background-color: #e8f5e9;
}

/* 비정상 가격 스타일 */
.high-price {
  background-color: #ffebee;
}

.low-price {
  background-color: #e3f2fd;
}

/* 버튼 스타일 */
.btn-view {
  background-color: var(--toss-primary);
  color: white;
  border: none;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background-color 0.2s;
}

.btn-view:hover {
  background-color: #2b74db;
}

.btn-edit {
  background-color: #4caf50;
  color: white;
  border: none;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}

.btn-edit:hover {
  background-color: #388e3c;
}