:root {
  --bg-main: #f8fafc;
  --bg-sidebar: #0f172a;
  --text-sidebar: #94a3b8;
  --text-sidebar-active: #ffffff;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 8px;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
}

body {
  display: flex;
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
}

/* 사이드바 */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--text-sidebar);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  position: sticky;
  top: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 20px;
  border-bottom: 1px solid #1e293b;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 20px;
}

.brand-text h2 {
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: 0.5px;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--text-sidebar);
}

.nav-menu {
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  color: var(--text-sidebar);
  background: none;
  border: none;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
  width: 100%;
}

.nav-item i {
  font-size: 1.1rem;
  width: 20px;
}

.nav-item:hover {
  background-color: #1e293b;
  color: #fff;
}

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

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid #1e293b;
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.db-status {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #e2e8f0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.online {
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
}

/* 메인 콘텐츠 */
.main-content {
  flex: 1;
  padding: 30px;
  overflow-y: auto;
  max-width: 1600px;
}

.top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.header-title h1 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #0f172a;
}

.header-title p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

.header-actions {
  display: flex;
  gap: 10px;
}

/* 버튼 스타일 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
}
.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #475569;
  color: white;
}
.btn-secondary:hover {
  background-color: #334155;
}

.btn-outline {
  background-color: white;
  border-color: var(--border-color);
  color: var(--text-primary);
}
.btn-outline:hover {
  background-color: #f1f5f9;
}

.btn-tab {
  background-color: #e2e8f0;
  color: var(--text-secondary);
  padding: 8px 16px;
}
.btn-tab.active {
  background-color: var(--primary);
  color: white;
}

.btn-sm {
  padding: 4px 8px;
  font-size: 0.8rem;
}

/* 탭 패널 */
.tab-pane {
  display: none;
}
.tab-pane.active {
  display: block;
}

/* KPI 카드 */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow);
}

.kpi-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.kpi-card.primary .kpi-icon { background-color: #eff6ff; color: var(--primary); }
.kpi-card.warning .kpi-icon { background-color: #fffbeb; color: var(--warning); }
.kpi-card.success .kpi-icon { background-color: #ecfdf5; color: var(--success); }
.kpi-card.danger .kpi-icon { background-color: #fef2f2; color: var(--danger); }

.kpi-content {
  display: flex;
  flex-direction: column;
}

.kpi-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.kpi-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: #0f172a;
  margin: 4px 0;
}

.kpi-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* 대시보드 그리드 */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background: #fff;
}

.card-header h3 {
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 16px 20px;
}

/* 테이블 공통 */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
  margin-top: 16px;
}

.data-table, .simple-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.data-table th, .simple-table th {
  background: #f8fafc;
  color: #475569;
  font-weight: 600;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td, .simple-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  color: #334155;
}

.data-table tbody tr:hover, .simple-table tbody tr:hover {
  background-color: #f1f5f9;
}

.text-right { text-align: right; }
.text-center { text-align: center; }

/* 배지 */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background-color: #dcfce7;
  color: #15803d;
}

.badge-warning {
  background-color: #fef3c7;
  color: #b45309;
}

/* 필터 바 */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  padding: 14px 18px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  gap: 12px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.input-text, .select-box, .input-date, .form-control {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 0.88rem;
  background: #fff;
  color: var(--text-primary);
  outline: none;
}

.input-text:focus, .select-box:focus, .input-date:focus, .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.input-text { min-width: 260px; }
.date-sep { color: var(--text-secondary); }

/* 페이지네이션 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
}

.page-btn {
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
}

.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 모달 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius);
  width: 580px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 { font-size: 1.15rem; }

.btn-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
}

#slip-form {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  width: 100%;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #475569;
}

.amount-summary-box {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
}

.amount-item strong {
  color: #0f172a;
  margin-left: 4px;
}

.amount-item.total strong {
  color: var(--primary);
  font-size: 1.1rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.tab-sub-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.fiscal-year-control {
  display: flex;
  align-items: center;
  gap: 8px;
  background: white;
  padding: 4px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.fiscal-year-control label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.font-bold {
  font-weight: 700;
}