:root {
  --primary: #3b82f6;
  --primary-light: #60a5fa;
  --primary-dark: #2563eb;
  --primary-bg: #eff6ff;
  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --purple: #8b5cf6;
  --purple-bg: #f5f3ff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px 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);
  --radius: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #f0f4f8;
  min-height: 100vh;
  color: var(--gray-900);
}

.page {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding: 20px 28px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-header h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
}

.subtitle {
  margin: 4px 0 0;
  color: var(--gray-500);
  font-size: 14px;
}

.header-actions {
  display: flex;
  gap: 12px;
}

/* Tabs */
.tab-bar {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  background: #fff;
  padding: 4px;
  border-radius: var(--radius);
  width: fit-content;
  box-shadow: var(--shadow-sm);
}

.tab {
  border: none;
  background: transparent;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
  transition: all 0.15s ease;
}

.tab:hover {
  background: var(--gray-100);
}

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

.tab-panel {
  display: none;
}

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

/* Cards */
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

/* Grid */
.grid {
  display: grid;
  gap: 20px;
}

.grid.two {
  grid-template-columns: repeat(2, 1fr);
}

.grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.grid.four {
  grid-template-columns: repeat(4, 1fr);
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.section-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-800);
}

.section-header h2.clickable {
  cursor: pointer;
  color: var(--primary);
}

.section-header h2.clickable:hover {
  text-decoration: underline;
}

.muted {
  color: var(--gray-500);
  font-size: 13px;
}

/* Date Controls */
.date-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.date-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.date-shortcuts {
  display: flex;
  gap: 8px;
  align-items: center;
}

.shortcut-label {
  font-size: 12px;
  color: var(--gray-400);
  margin-right: 4px;
}

.shortcut-btn {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.15s;
}

.shortcut-btn:hover {
  background: var(--gray-100);
  border-color: var(--gray-300);
}

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

.date-sep {
  color: var(--gray-300);
  font-size: 18px;
}

.date-inputs {
  display: flex;
  gap: 10px;
  align-items: center;
  background: transparent;
  padding: 0;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
}

.date-inputs label {
  display: flex;
  align-items: center;
  gap: 0;
  font-size: 13px;
  color: var(--gray-600);
}

input[type="date"] {
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--gray-200);
  background: #fff;
  font-size: 14px;
  color: var(--gray-800);
  cursor: pointer;
}

input[type="date"]:focus {
  outline: none;
  border-color: var(--primary);
}

input[type="date"]::-webkit-calendar-picker-indicator {
  opacity: 0.6;
  cursor: pointer;
}

.date-to {
  color: var(--gray-400);
  font-size: 13px;
  padding: 0 4px;
}

.date-hint {
  font-size: 13px;
  color: var(--gray-500);
  margin-left: auto;
  background: var(--gray-100);
  padding: 6px 12px;
  border-radius: 6px;
}

/* Buttons */
button {
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.primary:hover {
  background: var(--primary-dark);
}

.secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.secondary:hover {
  background: var(--gray-200);
}

/* Summary Cards */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.summary-card {
  background: linear-gradient(135deg, #fff 0%, var(--gray-50) 100%);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: transform 0.15s, box-shadow 0.15s;
}

.summary-card.clickable {
  cursor: pointer;
}

.summary-card.clickable:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.summary-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
}

.summary-card.ai .summary-icon {
  background: linear-gradient(135deg, var(--purple) 0%, #a78bfa 100%);
  color: #fff;
}

.summary-card.non-ai .summary-icon {
  background: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
  color: #fff;
}

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

.summary-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.summary-stats {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 12px 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
}

.stat-label {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--gray-200);
}

.summary-card.ai {
  border-left: 4px solid var(--purple);
}

.summary-card.non-ai {
  border-left: 4px solid var(--success);
}

.summary-detail {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: 8px;
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.kpi {
  background: var(--gray-50);
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
}

.kpi .label {
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-500);
  margin-bottom: 6px;
}

.kpi .value {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-900);
}

.kpi .value.small {
  font-size: 16px;
}

.kpi.highlight {
  background: var(--primary-bg);
  border-color: var(--primary);
}

.kpi.highlight .value {
  color: var(--primary);
}

/* Tables */
.table-wrap {
  max-height: 400px;
  overflow: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

thead th {
  text-align: left;
  background: var(--gray-50);
  padding: 12px 16px;
  position: sticky;
  top: 0;
  font-weight: 600;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-200);
}

tbody tr {
  transition: background 0.1s ease;
}

tbody tr:hover {
  background: var(--gray-50);
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
}

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

.right {
  text-align: right;
}

.clickable-row {
  cursor: pointer;
}

.clickable-row:hover {
  background: var(--primary-bg) !important;
}

/* Status Grid */
.status-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.tag-nonai {
  color: var(--success);
  background: var(--success-bg);
}

.tag-ai {
  color: var(--purple);
  background: var(--purple-bg);
}

/* Unit Badge */
.unit {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-500);
  margin-left: 4px;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  max-width: 900px;
  width: 90%;
  max-height: 80vh;
  overflow: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
  margin: 0;
  font-size: 18px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--gray-500);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.modal-close:hover {
  color: var(--gray-700);
}

/* Detail Table in Modal */
.detail-summary {
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--gray-50);
  border-radius: 8px;
}

.detail-total {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
}

.detail-table th,
.detail-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
}

.detail-table th {
  font-weight: 600;
  color: var(--gray-600);
  font-size: 13px;
  background: var(--gray-50);
}

.detail-table td {
  font-size: 14px;
  color: var(--gray-800);
}

.detail-table .right {
  text-align: right;
}

.detail-table tbody tr:hover {
  background: var(--gray-50);
}

/* Fetch Form */
.fetch-form {
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--gray-800);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input[type="text"]::placeholder {
  color: var(--gray-400);
}

.form-hint {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--gray-500);
}

.form-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
}

.form-row .form-group {
  flex: 1;
  margin-bottom: 0;
}

.form-row button {
  flex-shrink: 0;
  height: 42px;
}

.fetch-result {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-200);
}

.fetch-result h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  margin: 20px 0 12px;
}

.fetch-result h4:first-of-type {
  margin-top: 16px;
}

/* Responsive */
@media (max-width: 1200px) {
  .grid.four {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 960px) {
  .grid.two,
  .grid.three,
  .grid.four {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .date-controls {
    gap: 10px;
  }

  .date-shortcuts {
    flex-wrap: wrap;
  }

  .date-hint {
    margin-left: 0;
    margin-top: 8px;
  }

  .page-header {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .page {
    padding: 16px;
  }

  .card {
    padding: 16px;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .date-shortcuts {
    flex-wrap: wrap;
  }
}

/* Login Screen */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h2 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
}

.login-header p {
  margin: 0;
  color: var(--gray-500);
  font-size: 14px;
}

.login-form .form-group {
  margin-bottom: 20px;
}

.login-form input[type="password"] {
  width: 100%;
  padding: 14px 16px;
  font-size: 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--gray-50);
  transition: border-color 0.2s, background 0.2s;
}

.login-form input[type="password"]:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
}

.login-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
}

.login-error {
  margin: 16px 0 0;
  padding: 12px;
  background: var(--danger-bg);
  color: var(--danger);
  border-radius: var(--radius-sm);
  font-size: 14px;
  text-align: center;
  display: none;
}

.login-error.show {
  display: block;
}

#logoutButton {
  background: var(--gray-100);
  color: var(--gray-600);
  border: 1px solid var(--gray-200);
}

#logoutButton:hover {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger);
}