/* Oracle Resource Hub V4 - Notion-Style Design System */

/* ========== CSS Variables ========== */
:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-hover: #f3f4f6;
  --color-bg-active: #e5e7eb;
  
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-border-focus: #3b82f6;
  
  --color-text-primary: #111827;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  
  /* Category Colors */
  --color-labor: #3b82f6;
  --color-compute: #8b5cf6;
  --color-procurement: #10b981;
  --color-total: linear-gradient(135deg, #3b82f6, #8b5cf6);
  
  /* Department */
  --color-dc: #3b82f6;
  --color-pd: #f59e0b;
  
  /* Status */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Consolas', monospace;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ========== Reset ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body { 
  font-family: var(--font-sans); 
  color: var(--color-text-primary); 
  background: var(--color-bg); 
  line-height: 1.5;
}

/* ========== Navigation ========== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  height: 56px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-primary);
  text-decoration: none;
  padding-right: var(--space-md);
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--color-border);
  margin: 0 var(--space-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

.nav-link.active {
  color: var(--color-text-primary);
  background: var(--color-bg-active);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  position: relative;
}

.dropdown-arrow {
  transition: transform var(--transition-fast);
}

.nav-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 280px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: 200;
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-header {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border-light);
}

.dropdown-list {
  max-height: 300px;
  overflow-y: auto;
  padding: var(--space-xs);
}

.dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-bg-hover);
}

.dropdown-item.active {
  background: var(--color-bg-active);
}

.dropdown-item-cost {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.dropdown-empty {
  padding: var(--space-lg);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.dropdown-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dropdown-item-name {
  font-weight: 500;
}

.dropdown-item-code {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ========== Main Content ========== */
.main-content {
  padding: var(--space-xl) var(--space-2xl);
  max-width: 1400px;
  margin: 0 auto;
}

.page-header {
  margin-bottom: var(--space-xl);
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.page-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.section-badge {
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border-radius: 999px;
}

/* ========== Summary Grid ========== */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

/* V5: 6 列汇总网格 */
.summary-grid-v5 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

@media (max-width: 1280px) {
  .summary-grid-v5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .summary-grid-v5 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.summary-card {
  position: relative;
  overflow: hidden;
}

.summary-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.summary-card.labor::before { background: var(--color-labor); }
.summary-card.compute::before { background: var(--color-compute); }
.summary-card.procurement::before { background: var(--color-procurement); }
.summary-card.total::before { background: var(--color-total); }
.summary-card.resource-quantity::before { background: linear-gradient(135deg, #06b6d4, #3b82f6); }

.summary-icon.resource {
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.card-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.card-value-unit {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-left: 4px;
}

.summary-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.summary-icon.labor { background: var(--color-labor); }
.summary-icon.compute { background: var(--color-compute); }
.summary-icon.procurement { background: var(--color-procurement); }
.summary-icon.total { background: var(--color-total); }

/* ========== Project Grid ========== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-md);
}

.project-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.project-card:hover {
  border-color: var(--color-text-secondary);
  box-shadow: var(--shadow-md);
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.project-card-name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.project-card-code {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.project-card-cost {
  font-size: 1.25rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.project-card-stats {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.project-card-stats .stat-item strong {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-text-primary);
}

.project-card-stats .stat-divider {
  color: var(--color-border);
}

.project-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.project-card-actions {
  display: flex;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

/* Empty State Card */
.empty-state-card {
  grid-column: 1 / -1;
  background: var(--color-bg-secondary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
}

.empty-state-card .empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.empty-state-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.empty-state-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

/* ========== Project Summary Header ========== */
.project-summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-xl);
}

.project-info-section {
  flex: 1;
}

.project-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.project-meta-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.meta-text {
  color: var(--color-text-secondary);
}

.meta-divider {
  color: var(--color-border);
}

.project-cost-summary {
  display: flex;
  gap: var(--space-xl);
}

.cost-item {
  text-align: center;
  padding: var(--space-sm) var(--space-md);
}

.cost-item.total {
  background: var(--color-text-primary);
  color: white;
  border-radius: var(--radius-md);
}

.cost-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
  margin-bottom: 2px;
}

.cost-value {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.cost-sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  opacity: 0.7;
  margin-top: 2px;
}

.cost-item.total .cost-label { color: rgba(255,255,255,0.8); }
.cost-item.total .cost-value { color: white; }
.cost-item.total .cost-sub { color: rgba(255,255,255,0.7); }

/* 投入类型样式 - 按类型显示单位 */
.cost-item.labor-item {
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-md);
}

.cost-item.labor-item .cost-label { color: var(--color-labor); }
.cost-item.labor-item .cost-value { color: var(--color-labor); }
.cost-item.labor-item .cost-sub { color: var(--color-labor); }

.cost-item.compute-item {
  background: rgba(139, 92, 246, 0.1);
  border-radius: var(--radius-md);
}

.cost-item.compute-item .cost-label { color: var(--color-compute); }
.cost-item.compute-item .cost-value { color: var(--color-compute); }
.cost-item.compute-item .cost-sub { color: var(--color-compute); }

.cost-item.procurement-item {
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-md);
}

.cost-item.procurement-item .cost-label { color: var(--color-procurement); }
.cost-item.procurement-item .cost-value { color: var(--color-procurement); }

.cost-item.primary {
  background: var(--color-labor);
  color: white;
  border-radius: var(--radius-md);
}

.cost-item.primary .cost-label { color: rgba(255,255,255,0.8); }
.cost-item.primary .cost-value { color: white; }

/* ========== Charts Section ========== */
.charts-section {
  margin-bottom: var(--space-xl);
}

.chart-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}

.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.chart-card.half {
  margin-bottom: 0;
}

.chart-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.chart-container {
  min-height: 200px;
}

.chart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 180px;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Bar Chart */
.bar-chart {
  padding: var(--space-sm) 0;
}

.bar-chart-bars {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
}

.bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.bar-stack {
  display: flex;
  flex-direction: column-reverse;
  width: 100%;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  overflow: hidden;
}

.bar-segment {
  min-height: 2px;
  transition: height 0.3s ease;
}

.bar-segment.labor { background: var(--color-labor); }
.bar-segment.compute { background: var(--color-compute); }
.bar-segment.procurement { background: var(--color-procurement); }

.bar-label {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-value {
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--color-text-primary);
}

.chart-legend {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

.legend-color.labor { background: var(--color-labor); }
.legend-color.compute { background: var(--color-compute); }
.legend-color.procurement { background: var(--color-procurement); }

/* Pie Chart */
.pie-chart-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.pie-chart-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.pie-chart-container {
  width: 140px;
  height: 140px;
}

.pie-chart-svg {
  width: 100%;
  height: 100%;
}

.pie-legend {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  width: 100%;
}

.pie-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
}

.pie-legend-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.pie-legend-name {
  color: var(--color-text-secondary);
}

.pie-legend-value {
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-text-primary);
}

@media (max-width: 768px) {
  .chart-row { grid-template-columns: 1fr; }
}

/* ========== Resource Tabs ========== */
.resource-tabs {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
}

.resource-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.resource-tab:hover {
  color: var(--color-text-primary);
  background: var(--color-bg);
}

.resource-tab.active {
  color: var(--color-text-primary);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.tab-count {
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--color-bg-active);
  border-radius: 999px;
}

.resource-tab.active .tab-count {
  background: var(--color-text-primary);
  color: white;
}

/* V5: Tab 资源总量 */
.tab-total {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  margin-left: auto;
  padding-left: var(--space-md);
  border-left: 1px solid var(--color-border-light);
}

.resource-tab.active .tab-total {
  color: var(--color-text-secondary);
}

/* ========== Resource Panels ========== */
.resource-panel {
  display: none;
}

.resource-panel.active {
  display: block;
}

.inline-entry-section {
  margin-bottom: var(--space-xl);
}

.entry-section-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

/* ========== Large Entry Form ========== */
.entry-form-large {
  background: var(--color-bg-secondary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.entry-row-large {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.entry-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 140px;
}

.entry-field.flex-grow {
  flex: 1;
}

.field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.field-input-large {
  width: 100%;
  padding: var(--space-md) var(--space-md);
  font-size: 1rem;
  font-family: inherit;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field-input-large:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.field-input-large::placeholder {
  color: var(--color-text-muted);
}

select.field-input-large {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* Calculation Preview */
.calc-preview-large {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.calc-preview-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calc-preview-item.highlight {
  padding: var(--space-sm) var(--space-md);
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-md);
}

.calc-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calc-value {
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--color-text-primary);
}

.calc-preview-item.highlight .calc-value {
  color: var(--color-labor);
  font-size: 1.125rem;
}

/* V5: 转换提示 */
.conversion-hint {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: rgba(59, 130, 246, 0.05);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.hint-icon {
  color: var(--color-labor);
  font-weight: 600;
}

.hint-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* ========== Entry List Table ========== */
.entry-list-section {
  margin-top: var(--space-xl);
}

.table-container {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

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

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

.table-empty {
  padding: var(--space-xl);
  text-align: center;
  color: var(--color-text-muted);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  background: #374151;
}

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.btn-danger {
  background: transparent;
  color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.1);
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
}

.btn-sm {
  padding: 4px 8px;
  font-size: 0.75rem;
}

.btn-sm.btn-icon {
  width: 28px;
  height: 28px;
}

.btn-large {
  padding: var(--space-md) var(--space-xl);
  font-size: 0.9375rem;
  margin-left: auto;
}

/* ========== Badges ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.badge-dc { background: rgba(59,130,246,0.1); color: var(--color-dc); }
.badge-pd { background: rgba(245,158,11,0.1); color: var(--color-pd); }
.badge-internal { background: rgba(16,185,129,0.1); color: var(--color-success); }
.badge-outsourced { background: rgba(107,114,128,0.1); color: var(--color-text-secondary); }
.badge-draft { background: rgba(107,114,128,0.1); color: var(--color-text-secondary); }
.badge-submitted { background: rgba(59,130,246,0.1); color: var(--color-labor); }
.badge-approved { background: rgba(16,185,129,0.1); color: var(--color-success); }

/* ========== Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 200;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

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

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* ========== Forms ========== */
.form-group {
  margin-bottom: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9375rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-border-focus);
}

.form-input-large {
  padding: var(--space-md);
  font-size: 1rem;
  border-width: 2px;
}

.form-input-large:focus {
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.form-input-number {
  font-family: var(--font-mono);
  text-align: right;
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

/* ========== Settings ========== */
.settings-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.settings-row {
  display: flex;
  gap: var(--space-lg);
}

.flex-1 { flex: 1; }

.card-section-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  color: var(--color-text-primary);
}

.card-section-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

/* Rate Matrix */
.rate-matrix {
  display: grid;
  gap: var(--space-xs);
}

.rate-matrix-header, .rate-matrix-row {
  display: grid;
  grid-template-columns: 120px 1fr 1fr;
  gap: var(--space-sm);
}

.rate-matrix-cell {
  padding: var(--space-sm);
}

.rate-matrix-cell.header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-align: center;
}

.rate-matrix-cell.label {
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
}

.rate-input-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.rate-input-group .form-input {
  flex: 1;
}

.rate-unit {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.rate-single {
  margin-bottom: var(--space-md);
}

.rate-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.conversion-config {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.conversion-preview {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.conversion-formula {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.conversion-formula strong {
  color: var(--color-text-primary);
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ========== Toast ========== */
.toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-error); }

.toast-icon {
  font-size: 1rem;
}

.toast-message {
  font-size: 0.875rem;
}

/* ========== Footer ========== */
.app-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
  z-index: 50;
}

.footer-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* 为 footer 留出底部空间 */
.main-content {
  padding-bottom: 60px;
}

/* ========== Login View ========== */
.login-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 120px);
  padding: var(--space-xl);
}

.login-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.login-header svg {
  color: var(--color-labor);
  margin-bottom: var(--space-md);
}

.login-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.login-header p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.login-form {
  margin-bottom: var(--space-lg);
}

.login-form .form-group {
  margin-bottom: var(--space-md);
}

.login-hint {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ========== User Status ========== */
.user-status {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-right: var(--space-md);
}

.user-name {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
}

.user-name svg {
  color: var(--color-labor);
}

/* ========== Utilities ========== */
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.text-muted { color: var(--color-text-muted); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 200px; }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .project-cost-summary { gap: var(--space-md); }
  .settings-row { flex-direction: column; }
}

@media (max-width: 768px) {
  .nav { padding: 0 var(--space-md); }
  .main-content { padding: var(--space-md); }
  .summary-grid { grid-template-columns: 1fr; }
  .project-summary-header { flex-direction: column; gap: var(--space-md); }
  .entry-row-large { flex-direction: column; }
  .calc-preview-large { flex-wrap: wrap; }
}