:root {
  --bg: #f2f7fb;
  --card-bg: #ffffff;
  --border: #dbeafe;
  --primary: #2563eb;
  --primary-light: #60a5fa;
  --cyan: #06b6d4;
  --text: #1e293b;
  --text-muted: #64748b;
  --green-bg: #ecfdf5;
  --green-border: #34d399;
  --green-text: #047857;
  --warn-bg: #fffbeb;
  --warn-border: #f59e0b;
  --error-bg: #fef2f2;
  --error-border: #f87171;
  --error-text: #b91c1c;
  --radius: 14px;
  --shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, #eef6ff 0%, #f2f7fb 100%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.page.wide {
  max-width: 1200px;
}

.app-header {
  text-align: center;
  margin-bottom: 28px;
  position: relative;
}

.logo-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  margin: 0 auto 10px;
}

.app-header h1 {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
}

.subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.back-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.back-link:hover {
  text-decoration: underline;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 28px;
}

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

.form-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.form-group.half {
  flex: 1;
  min-width: 220px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

select,
input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
  background: #fafcff;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s ease;
}

select:focus,
input[type="number"]:focus {
  border-color: var(--primary-light);
}

.checkbox-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.checkbox-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f4f9ff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 9px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.checkbox-pill:has(input:checked) {
  background: #dbeafe;
  border-color: var(--primary-light);
}

.checkbox-pill input {
  accent-color: var(--primary);
}

.toggle-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f4f9ff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-muted);
}

.toggle-track {
  width: 38px;
  height: 20px;
  background: #cbd5e1;
  border-radius: 999px;
  position: relative;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.toggle-btn.active .toggle-track {
  background: var(--primary);
}

.toggle-btn.active .toggle-thumb {
  transform: translateX(18px);
}

.toggle-btn.active .toggle-label {
  color: var(--primary);
  font-weight: 600;
}

.primary-btn {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.primary-btn:hover:not(:disabled) {
  opacity: 0.92;
}

.primary-btn:active:not(:disabled) {
  transform: scale(0.99);
}

.primary-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner.large {
  width: 34px;
  height: 34px;
  border: 3px solid rgba(37, 99, 235, 0.2);
  border-top-color: var(--primary);
  margin: 0 auto 14px;
}

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

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(242, 247, 251, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.loading-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 40px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15);
  border: 1px solid var(--border);
}

.loading-box p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.alert-box {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error-text);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 14px;
}

.alert-box ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.alert-box.warning {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: #92400e;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-card.highlight {
  background: var(--green-bg);
  border-color: var(--green-border);
}

.stat-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.stat-card.highlight .stat-value {
  color: var(--green-text);
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.split-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 78vh;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: linear-gradient(135deg, #eaf3ff, #f0fbfd);
  border-bottom: 1px solid var(--border);
}

.panel-header.sticky {
  position: sticky;
  top: 0;
  z-index: 10;
}

.panel-header h2 {
  margin: 0;
  font-size: 16px;
  color: var(--text);
}

.panel-count {
  font-size: 12px;
  color: var(--text-muted);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
}

.panel-body {
  padding: 16px 20px;
  overflow-y: auto;
}

.section-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin: 18px 0 10px;
}

.section-label:first-child {
  margin-top: 0;
}

.result-card {
  background: #fafcff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.result-card.match {
  background: var(--green-bg);
  border-color: var(--green-border);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.tot-id {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}

.result-card.match .tot-id {
  color: var(--green-text);
}

.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

.match-badge {
  background: var(--green-border);
  color: #fff;
}

.summary {
  margin: 0;
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
}

.sources {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.empty-msg {
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
  padding: 20px 0;
}

.meta-footer {
  text-align: center;
  margin-top: 24px;
  color: var(--text-muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .split-panels {
    grid-template-columns: 1fr;
  }
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .panel {
    max-height: none;
  }
}

/* -------------------------------------------------------------- */
/* Export section                                                 */
/* -------------------------------------------------------------- */
.export-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.export-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 4px;
}

.export-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: transform 0.1s ease, opacity 0.15s ease;
}

.export-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.export-icon {
  font-size: 12px;
}

.excel-btn {
  background: linear-gradient(135deg, #10b981, #34d399);
  color: #fff;
  border-color: #10b981;
}

.csv-btn {
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  color: #fff;
  border-color: var(--primary);
}