/* ============== Cross-check Page Styles ============== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-pass: #71b06c;
  --color-pass-bg: #dff0dd;
  --color-pass-border: #b8ddb5;
  --color-fail: #e05252;
  --color-fail-bg: #fdeaea;
  --color-fail-border: #f5bcbc;
  --color-timeout: #e8a838;
  --color-timeout-bg: #fdf3de;
  --color-timeout-border: #f5dda0;
  --color-info: #4c6bcd;
  --color-info-bg: #e3f0ff;
  --color-info-border: #c5d5f5;
  --color-bg: #f1f3fa;
  --color-surface: #ffffff;
  --color-text: #080331;
  --color-text-muted: #555770;
  --color-text-light: #8b8fa8;
  --color-border: #e2e6f8;
  --color-primary: #4c6bcd;
  --color-primary-hover: #3a56b0;
  --shadow-sm: 0 1px 3px rgba(8,3,49,0.06);
  --shadow-md: 0 4px 6px -1px rgba(8,3,49,0.08), 0 2px 4px -2px rgba(8,3,49,0.05);
  --shadow-lg: 0 10px 20px -4px rgba(8,3,49,0.12), 0 4px 8px -4px rgba(8,3,49,0.06);
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ============== Header ============== */
.xc-header {
  background: linear-gradient(135deg, #6b48c8, #4c6bcd);
  color: white;
  padding: 20px 0;
  box-shadow: var(--shadow-lg);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-right { display: flex; align-items: center; gap: 12px; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  transition: color 0.15s;
}

.back-link:hover { color: white; }

.header-left h1 { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; }
.header-left .subtitle { font-size: 0.82rem; opacity: 0.75; }

/* ============== Main ============== */
.main-content { padding: 24px 0 60px; }

/* ============== Step Cards ============== */
.step-card {
  display: flex;
  gap: 20px;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6b48c8, #4c6bcd);
  color: white;
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-body { flex: 1; min-width: 0; }
.step-body h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.step-desc { font-size: 0.88rem; color: var(--color-text-muted); margin-bottom: 16px; }

/* ============== Source Cards ============== */
.source-cards {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.source-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  flex: 1;
  min-width: 220px;
}

.source-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, #4c6bcd, #6b48c8);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.source-icon-sheets {
  background: linear-gradient(135deg, #0f9d58, #34a853);
}

.source-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.source-status {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.source-status a {
  color: var(--color-primary);
}

.source-arrow {
  color: var(--color-text-light);
  flex-shrink: 0;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-ok { background: var(--color-pass); }
.status-warn { background: var(--color-timeout); }
.status-error { background: var(--color-fail); }
.status-loading {
  background: var(--color-primary);
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ============== Rules Box ============== */
.rules-box {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 20px;
  border: 1px solid var(--color-border);
}

.rules-box h3 {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.rule {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  padding: 6px 0;
  color: var(--color-text);
  line-height: 1.5;
}

.rule-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.rule-down { background: var(--color-timeout-bg); color: #a07618; }
.rule-up { background: var(--color-pass-bg); color: #2d6629; }
.rule-ok { background: var(--color-bg); color: var(--color-text-muted); border: 1px solid var(--color-border); }

/* ============== Buttons ============== */
.btn {
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-crosscheck {
  background: linear-gradient(135deg, #6b48c8, #4c6bcd);
  color: white;
}

.btn-crosscheck:hover {
  background: linear-gradient(135deg, #5a3bb0, #3a56b0);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-crosscheck:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-apply {
  background: #22c55e;
  color: white;
}

.btn-apply:hover {
  background: #16a34a;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-apply:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-applied {
  background: var(--color-pass) !important;
  cursor: default !important;
}

/* ============== Loading & Error ============== */
.loading-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(107, 72, 200, 0.25);
  border-top-color: #6b48c8;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.error-message {
  padding: 14px 18px;
  background: var(--color-fail-bg);
  border: 1px solid var(--color-fail-border);
  border-radius: var(--radius-sm);
  color: #8b2020;
  font-size: 0.88rem;
  margin-top: 12px;
}

/* ============== Summary ============== */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}

.sum-card {
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-border);
  background: var(--color-bg);
}

.sum-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 2px;
}

.sum-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.sum-matched { border-left-color: var(--color-pass); }
.sum-matched .sum-value { color: var(--color-pass); }

.sum-changes { border-left-color: #6b48c8; }
.sum-changes .sum-value { color: #6b48c8; }

.sum-to-prod { border-left-color: #22c55e; }
.sum-to-prod .sum-value { color: #22c55e; }

.sum-to-ready { border-left-color: var(--color-timeout); }
.sum-to-ready .sum-value { color: var(--color-timeout); }

.sum-totals {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.sum-totals strong { color: var(--color-text); }

.sum-sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text-light);
}

/* ============== Tabs ============== */
.xc-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0;
  flex-wrap: wrap;
}

.xc-tab {
  padding: 10px 18px;
  border: none;
  background: none;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.xc-tab:hover { color: var(--color-text); }

.xc-tab.active {
  color: #6b48c8;
  border-bottom-color: #6b48c8;
}

.tab-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  background: #6b48c8;
  color: white;
}

.tab-badge-muted {
  background: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.tab-badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

/* ============== Panel ============== */
.xc-panel {
  min-height: 60px;
}

.panel-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  font-style: italic;
}

.empty-panel {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px;
  background: var(--color-pass-bg);
  border: 1px solid var(--color-pass-border);
  border-radius: var(--radius-sm);
  color: #2d6629;
  font-size: 0.95rem;
  font-weight: 600;
}

/* ============== Table ============== */
.changes-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

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

.xc-table thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
  white-space: nowrap;
}

.xc-table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  font-size: 0.88rem;
}

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

.xc-table tbody tr:hover { background: #f8fafc; }

.col-num {
  color: var(--color-text-light);
  font-size: 0.78rem;
  font-weight: 600;
  width: 40px;
}

.col-title { font-weight: 600; }

.col-cat {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.col-arrow {
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
  width: 40px;
}

.arrow-up { color: #22c55e; }
.arrow-down { color: var(--color-timeout); }

.row-revert { background: #fffbeb; }
.row-promote { background: #f0fdf4; }

/* ============== Status Pills ============== */
.status-pill {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.pill-production {
  background: var(--color-pass-bg);
  color: var(--color-pass);
  border: 1px solid var(--color-pass-border);
}

.pill-ready {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

.pill-incomplete {
  background: var(--color-timeout-bg);
  color: var(--color-timeout);
  border: 1px solid var(--color-timeout-border);
}

.pill-pass {
  background: var(--color-pass-bg);
  color: var(--color-pass);
  border: 1px solid var(--color-pass-border);
}

.pill-fail {
  background: var(--color-fail-bg);
  color: var(--color-fail);
  border: 1px solid var(--color-fail-border);
}

.pill-timeout {
  background: var(--color-timeout-bg);
  color: var(--color-timeout);
  border: 1px solid var(--color-timeout-border);
}

.pill-default {
  background: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* ============== Apply Section ============== */
.apply-section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.apply-note {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 8px;
  font-style: italic;
}

/* ============== Spreadsheet Input ============== */
.spreadsheet-input {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.spreadsheet-input label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.optional-tag {
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--color-text-light);
  background: var(--color-bg);
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 6px;
}
.input-row {
  display: flex;
  gap: 8px;
}
.input-row input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input-row input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(76, 107, 205, 0.15);
}
.input-row input::placeholder {
  color: var(--color-text-light);
}
.btn-small {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.input-hint {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 6px;
}

/* ============== Setup Card ============== */
.setup-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-info-border);
  overflow: hidden;
  margin-bottom: 24px;
}

.setup-card summary {
  padding: 16px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-info);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.15s;
  user-select: none;
}

.setup-card summary:hover { background: var(--color-info-bg); }

.setup-card[open] summary {
  background: var(--color-info-bg);
  border-bottom: 1px solid var(--color-info-border);
}

.setup-content {
  padding: 20px 24px;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.setup-content p { margin: 0 0 12px 0; }

.setup-content ol {
  margin: 0;
  padding-left: 24px;
}

.setup-content ol li { margin-bottom: 8px; }

.setup-content code {
  background: var(--color-bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.82rem;
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  color: #6b48c8;
}

/* ============== Apply Info Box ============== */
.apply-info-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-info-bg);
  border: 1px solid var(--color-info-border);
  border-radius: var(--radius-sm);
  color: var(--color-info);
  font-size: 0.85rem;
  margin-bottom: 14px;
  line-height: 1.5;
}

.apply-info-box svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============== Setup: Detailed Steps ============== */
.setup-what {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.setup-what h3,
.setup-how h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.setup-what ul {
  margin: 8px 0;
  padding-left: 20px;
}

.setup-what ul li {
  margin-bottom: 4px;
}

.setup-how > p {
  margin-bottom: 16px;
}

.setup-step {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.setup-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 0.82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.setup-step-body {
  flex: 1;
  min-width: 0;
}

.setup-step-body strong {
  display: block;
  color: var(--color-text);
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.setup-step-body p {
  margin: 4px 0 0 0;
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.setup-step-body ul {
  margin: 8px 0 0 0;
  padding-left: 18px;
  font-size: 0.84rem;
  color: var(--color-text-muted);
}

.setup-step-body ul li {
  margin-bottom: 4px;
}

.setup-step-body a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.setup-step-body a:hover {
  text-decoration: underline;
}

.setup-hint {
  font-size: 0.78rem;
  color: var(--color-text-light);
  font-style: italic;
  margin-top: 4px;
}

.setup-code {
  display: block;
  background: #1e1e2e;
  color: #a6e3a1;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  overflow-x: auto;
  margin: 8px 0 4px 0;
}

.setup-step-body kbd {
  display: inline-block;
  padding: 2px 6px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.8rem;
  color: var(--color-text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

/* ============== Responsive ============== */
@media (max-width: 768px) {
  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .source-cards {
    flex-direction: column;
  }
  .source-arrow {
    transform: rotate(90deg);
  }
  .step-card {
    flex-direction: column;
    gap: 12px;
  }
  .xc-tab {
    padding: 8px 12px;
    font-size: 0.82rem;
  }
}

@media (max-width: 480px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }
  .sum-value {
    font-size: 1.5rem;
  }
}