/**
 * SaaS 프로덕트급 컴포넌트 시스템
 * 기존 dashboard.css를 대체하거나 확장하는 파일
 */

/* ============================================
   KPI Card System
   ============================================ */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem; /* 20px */
  margin-bottom: 2rem;
  width: 100%;
}

.kpi-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem; /* 12px */
  padding: 1.5rem; /* 24px */
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.kpi-card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

.kpi-card-icon {
  width: 2.5rem; /* 40px */
  height: 2.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}

.kpi-card-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.kpi-card-icon-blue {
  background-color: #eff6ff;
  color: #2563eb;
}

.kpi-card-icon-teal {
  background-color: #f0fdfa;
  color: #14b8a6;
}

.kpi-card-icon-purple {
  background-color: #faf5ff;
  color: #9333ea;
}

.kpi-card-icon-orange {
  background-color: #fff7ed;
  color: #ea580c;
}

.kpi-card-value {
  font-size: 2rem; /* 32px */
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.kpi-card-label {
  font-size: 0.875rem; /* 14px */
  color: var(--color-text-sub);
  font-weight: 400;
  margin-bottom: 1rem;
}

.kpi-card-trend {
  font-size: 0.75rem; /* 12px */
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.kpi-card-trend-label {
  color: var(--color-text-sub);
}

.kpi-card-trend-value {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.kpi-card-trend-up .kpi-card-trend-value {
  color: #10b981;
}

.kpi-card-trend-down .kpi-card-trend-value {
  color: #ef4444;
}

.kpi-card-trend-neutral .kpi-card-trend-value {
  color: var(--color-text-sub);
}

/* ============================================
   Dashboard Card System
   ============================================ */

.dashboard-section {
  margin-bottom: 3rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.25rem; /* 20px */
}

.dashboard-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem; /* 12px */
  padding: 1.5rem; /* 24px */
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.dashboard-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  gap: 1rem;
}

.dashboard-card-title {
  font-size: 1.125rem; /* 18px */
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.25rem 0;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.dashboard-card-subtitle {
  font-size: 0.875rem; /* 14px */
  color: var(--color-text-sub);
  margin: 0;
  font-weight: 400;
}

.dashboard-card-body {
  flex: 1;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

.btn-link:hover {
  color: var(--color-primary-dark);
}

.btn-link svg {
  width: 16px;
  height: 16px;
  stroke-width: 2;
}

/* chevron-right 아이콘이 없을 경우를 대비한 대체 */

/* ============================================
   List Group System
   ============================================ */

.list-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.list-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1.5rem;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  gap: 1rem;
}

.list-item:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.list-item-content {
  flex: 1;
  min-width: 0;
}

.list-item-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.list-item-description {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  margin-bottom: 0.75rem;
}

.list-item-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.list-item-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-sub);
}

.list-item-meta-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-text-light);
}

.list-item-action {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ============================================
   Table System
   ============================================ */

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-bg-white);
}

.data-table thead {
  background: var(--color-bg-secondary);
}

.data-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem; /* 12px */
  font-weight: 600;
  color: var(--color-text-sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table th:first-child {
  padding-left: 1.5rem;
}

.data-table th:last-child {
  padding-right: 1.5rem;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.data-table tbody tr:last-child {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: var(--color-bg-secondary);
}

.data-table td {
  padding: 1rem;
  font-size: 0.875rem;
  color: var(--color-text);
  vertical-align: middle;
}

.data-table td:first-child {
  padding-left: 1.5rem;
}

.data-table td:last-child {
  padding-right: 1.5rem;
}

.table-cell-primary {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.table-cell-secondary {
  font-size: 0.875rem;
  color: var(--color-text-sub);
}

/* ============================================
   Badge System
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem; /* 12px */
  font-weight: 500;
  border-radius: 9999px;
  white-space: nowrap;
  line-height: 1.2;
}

.badge-success {
  background: #ecfdf5;
  color: #10b981;
}

.badge-warning {
  background: #fffbeb;
  color: #f59e0b;
}

.badge-error {
  background: #fef2f2;
  color: #ef4444;
}

.badge-secondary {
  background: #f8fafc;
  color: #64748b;
}

.badge-primary {
  background: #eff6ff;
  color: #2563eb;
}

/* ============================================
   Empty State
   ============================================ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
}

.empty-state-icon {
  width: 4rem;
  height: 4rem;
  color: #cbd5e1;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-icon svg {
  width: 100%;
  height: 100%;
}

.empty-state-text {
  font-size: 1rem;
  color: var(--color-text-sub);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.empty-state-action {
  margin-top: 0.5rem;
}

/* ============================================
   Chart Card
   ============================================ */

.chart-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.chart-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.chart-card-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  margin: 0.25rem 0 0 0;
}

.chart-card-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chart-card-body {
  min-height: 300px;
  position: relative;
}

.chart-card-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-sub);
}

.chart-legend-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
}

/* ============================================
   Utility Classes
   ============================================ */

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text Colors */
.text-primary { color: var(--color-primary); }
.text-success { color: #10b981; }
.text-warning { color: #f59e0b; }
.text-error { color: #ef4444; }
.text-muted { color: var(--color-text-sub); }

/* Font Weight */
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .kpi-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .kpi-card {
    padding: 1.25rem;
  }
  
  .kpi-card-value {
    font-size: 1.75rem;
  }
  
  .kpi-card-icon {
    width: 2.25rem;
    height: 2.25rem;
    margin-bottom: 1rem;
  }
  
  .kpi-card-icon svg {
    width: 18px;
    height: 18px;
  }
  
  .dashboard-section {
    margin-bottom: 2rem;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .dashboard-card {
    padding: 1.25rem;
  }
  
  .dashboard-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
  }
  
  .dashboard-card-title {
    font-size: var(--font-size-base);
  }
  
  .list-item {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    gap: 0.75rem;
  }
  
  .list-item-content {
    width: 100%;
  }
  
  .list-item-title {
    font-size: var(--font-size-base);
    margin-bottom: 0.25rem;
  }
  
  .list-item-description {
    font-size: var(--font-size-sm);
    margin-bottom: 0.5rem;
  }
  
  .list-item-meta {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .list-item-action {
    width: 100%;
    justify-content: flex-start;
    margin-top: 0.5rem;
  }
  
  .empty-state {
    padding: 2rem 1rem;
  }
  
  .empty-state-icon svg {
    width: 48px;
    height: 48px;
  }
  
  .empty-state-text {
    font-size: var(--font-size-sm);
  }
  
  .data-table {
    font-size: 0.875rem;
  }
  
  /* 고객자료 카드 그리드 모바일 최적화 */
  .customer-resources-grid {
    grid-template-columns: 1fr !important;
    gap: 0.75rem;
  }
  
  .customer-resource-card {
    padding: 1rem !important;
  }
  
  /* 페이지 액션 모바일 최적화 */
  .page-actions form {
    width: 100%;
    max-width: 100%;
  }
  
  .page-actions .form-control {
    min-width: 0;
    width: 100%;
  }
  
  .page-actions select.form-control {
    width: 100%;
  }
  
  .page-actions button,
  .page-actions a.btn {
    width: 100%;
    justify-content: center;
  }
  
  /* 검색 폼 모바일 최적화 */
  .page-actions form[style*="display: flex"] {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .page-actions form[style*="display: flex"] > * {
    width: 100%;
  }
  
  .data-table th,
  .data-table td {
    padding: 0.75rem 0.5rem;
  }
}