:root {
  --bg: #0e1117;
  --panel: #121826;
  --card: #162032;
  --text: #e7ecf5;
  --muted: #9fb3c8;
  --accent: #8ae6ff;
  --accent-2: #7c61ff;
  --border: #1f2a3c;
  --success: #3fcf8e;
  --shadow: 0 20px 60px rgba(0,0,0,0.35);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, rgba(124,97,255,0.15), transparent 35%),
              radial-gradient(circle at 80% 0%, rgba(138,230,255,0.18), transparent 25%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent); }

.app-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  padding: 24px 32px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, rgba(14,17,23,0.95) 0%, rgba(14,17,23,0.6) 100%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; gap: 12px; align-items: center; }
.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1020;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.5px;
}

h1, h2, h3 { margin: 0; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-size: 12px; margin: 0; }
.lede { color: var(--muted); max-width: 680px; }

.nav-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.nav-link.active { background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #05070f; border-color: transparent; }
.nav-link:hover { border-color: var(--accent); }

main {
  padding: 20px 32px 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.wrap { max-width: 1220px; margin: 0 auto; padding: 16px; }
nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 18px;
}
.logo { font-weight: 700; letter-spacing: 0.2px; }
.tagline { color: var(--muted); font-size: 13px; flex: 1; min-width: 240px; }
.nav-group { display: flex; flex-wrap: wrap; gap: 8px; }
.nav-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.nav-tree {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-start;
}
.nav-dropdown {
  position: relative;
  min-width: 220px;
}
.nav-dropdown[open] .nav-dropdown-summary {
  border-color: rgba(92, 210, 255, 0.8);
  box-shadow: 0 10px 24px rgba(6, 16, 28, 0.25);
}
.nav-dropdown-summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 16px;
  background: rgba(22, 95, 122, 0.92);
  border: 2px solid rgba(19, 74, 96, 0.9);
  cursor: pointer;
}
.nav-dropdown-summary::-webkit-details-marker {
  display: none;
}
.nav-hamburger {
  font-size: 18px;
  line-height: 1;
  color: rgba(242, 248, 255, 0.85);
}
.nav-dropdown .nav-link {
  border: none;
  background: transparent;
  padding: 0;
}
.nav-dropdown .nav-link:hover {
  border: none;
}
.nav-root-link {
  font-size: 16px;
  font-weight: 600;
  color: #f3f8ff;
  text-decoration: none;
}
.nav-dropdown-menu {
  margin-top: 10px;
  padding: 12px;
  border-radius: 16px;
  background: rgba(15, 26, 40, 0.92);
  border: 1px solid rgba(31, 58, 80, 0.9);
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 18px 32px rgba(6, 16, 28, 0.35);
}
.nav-child {
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(22, 95, 122, 0.9);
  color: #f3f8ff;
  text-decoration: none;
  font-weight: 600;
}
.nav-child:hover {
  border-color: rgba(92, 210, 255, 0.8);
  transform: translateY(-1px);
}
.nav-child.active {
  background: rgba(27, 120, 150, 0.95);
  border-color: rgba(92, 210, 255, 0.9);
  color: #ffffff;
}
.nav-label {
  cursor: default;
}
.checkbox-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 6px;
}
.regex-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 6px;
}
.regex-grid input {
  width: 100%;
}
.progress-track {
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  height: 12px;
  overflow: hidden;
  margin: 10px 0 6px;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.2s ease;
}
.log-box {
  width: 100%;
  margin-top: 12px;
  background: rgba(10, 12, 20, 0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
.download-link {
  margin-top: 10px;
}
.download-link a {
  color: var(--accent);
  font-weight: 600;
}
.table-scroll {
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.data-table th,
.data-table td {
  border-bottom: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
  vertical-align: top;
}
.modal {
  position: fixed;
  inset: 0;
  background: rgba(8, 12, 20, 0.7);
  display: grid;
  place-items: center;
  z-index: 50;
}
.modal[hidden] {
  display: none;
}
.modal-content {
  background: var(--card);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  width: min(800px, 92vw);
  max-height: 80vh;
  overflow: auto;
  box-shadow: var(--shadow);
}
.qa-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}
.qa-kpis {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-bottom: 12px;
}
.qa-kpi {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(12, 20, 32, 0.8);
}
.qa-kpi .label {
  font-size: 12px;
  color: var(--muted);
}
.qa-kpi .value {
  font-size: 20px;
  font-weight: 700;
}
.qa-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.qa-bar-chart {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.qa-bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 40px;
  gap: 8px;
  align-items: center;
  font-size: 12px;
}
.qa-bar {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.qa-file-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.qa-file-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}
.qa-upload-progress {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.qa-upload-progress-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}
.qa-upload-progress-track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: rgba(255,255,255,0.05);
}
.qa-upload-progress-bar {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.2s ease;
}
.qa-upload-progress-track.indeterminate .qa-upload-progress-bar {
  width: 45%;
  animation: qa-upload-indeterminate 1.1s linear infinite;
}
@keyframes qa-upload-indeterminate {
  0% { left: -45%; }
  100% { left: 100%; }
}
.qa-error-banner {
  border: 1px solid #f2798f;
  background: rgba(242, 121, 143, 0.12);
  color: #ffdbe3;
  border-radius: 10px;
  padding: 10px 12px;
}
.qa-warning-banner {
  border: 1px solid #f59e0b;
  background: rgba(245, 158, 11, 0.12);
  color: #fde68a;
  border-radius: 10px;
  padding: 10px 12px;
}
.qa-file-queue {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.qa-file-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.qa-file-row-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.inline {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.session-badge {
  align-self: flex-end;
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}
.processing-bar {
  display: none;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(18, 32, 50, 0.85);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.processing-bar.active {
  display: flex;
}
.processing-label {
  font-weight: 600;
  color: var(--text);
  min-width: 180px;
}
.processing-track {
  position: relative;
  flex: 1;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  border: 1px solid rgba(138, 230, 255, 0.2);
}
.processing-fill {
  position: absolute;
  left: -40%;
  top: 0;
  height: 100%;
  width: 40%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(138, 230, 255, 0.1), rgba(138, 230, 255, 0.7), rgba(124, 97, 255, 0.5));
  animation: processing-slide 1.6s ease-in-out infinite;
}
.processing-percent {
  min-width: 46px;
  text-align: right;
  color: var(--accent);
  font-weight: 700;
}
@keyframes processing-slide {
  0% { left: -40%; }
  50% { left: 50%; }
  100% { left: 110%; }
}

.panel { display: none; gap: 18px; flex-direction: column; }
.panel.active { display: flex; }

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(138,230,255,0.12);
  color: var(--accent);
  border: 1px solid rgba(138,230,255,0.25);
}
.success-text { color: var(--success); }
.danger-text { color: #f2798f; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(124,97,255,0.15);
  color: var(--accent);
  border: 1px solid var(--border);
}

.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }

.upload-card { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.upload-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 10px;
  min-width: min(520px, 100%);
}
.upload-drop {
  flex: 1;
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 22px;
  text-align: center;
  background: rgba(255,255,255,0.02);
}

.file-list { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.file-pill {
  padding: 12px 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.02);
}

.stat-label { color: var(--muted); font-size: 12px; }
.stat-value { margin-top: 4px; font-size: 18px; font-weight: 600; }

.fsr-warning { border-left: 4px solid #c08b2c; }

.upload-progress {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  display: none;
  gap: 8px;
  flex-direction: column;
  width: 100%;
  overflow: visible;
}

.upload-progress.visible { display: flex; }
.upload-progress.done .bar { background: var(--success); }
.upload-progress.error .bar { background: #f2798f; }

.upload-progress-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.progress-bar {
  position: relative;
  height: 10px;
  background: rgba(255,255,255,0.04);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-bar-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  transition: width 0.18s ease;
}

.hint { color: var(--muted); margin: 4px 0 0; font-size: 13px; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }

.inline-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.toggle { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.toggle input { accent-color: var(--accent-2); }

.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th,
.data-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.data-table th { color: var(--muted); font-weight: 600; font-size: 13px; }
.data-table td { font-size: 13px; }
.field input, .field select, .field textarea {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  font-size: 14px;
}

.grid.two { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.grid.three { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }

.switch { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.switch input { accent-color: var(--accent-2); }

details.collapsible { border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; background: rgba(255,255,255,0.02); }
details.collapsible[open] { box-shadow: inset 0 0 0 1px rgba(138,230,255,0.1); }
.collapsible-summary { display: flex; justify-content: space-between; align-items: center; gap: 12px; cursor: pointer; list-style: none; }
.collapsible-summary::-webkit-details-marker { display: none; }
.collapsible-body { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }

.checkbox-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 8px 12px; }
.checkbox-columns label { display: flex; align-items: center; gap: 8px; font-size: 14px; background: rgba(255,255,255,0.02); border: 1px solid var(--border); padding: 8px 10px; border-radius: 10px; }
.checkbox-columns details { background: transparent; border: 1px solid var(--border); padding: 8px 10px; border-radius: 10px; grid-column: 1 / -1; }
.checkbox-columns summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
.checkbox-columns summary::-webkit-details-marker { display: none; }
.checkbox-columns .checkbox-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 6px 10px; margin-top: 8px; }
.helper { color: var(--muted); font-size: 14px; }

.pending-list { border: 1px dashed var(--border); border-radius: 12px; padding: 10px; background: rgba(255,255,255,0.02); display: flex; flex-direction: column; gap: 8px; min-height: 80px; }
.pending-item { display: flex; justify-content: space-between; align-items: center; gap: 10px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); padding: 8px 10px; border-radius: 10px; }
.pending-item .meta { color: var(--muted); font-size: 13px; }
.pending-item button { margin-left: 8px; }

button.primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #05070f;
  border: none;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(124,97,255,0.25);
}

button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.tool-card { margin-bottom: 16px; }

.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }

.levels-table table { width: 100%; border-collapse: collapse; }
.levels-table th, .levels-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.levels-table th { color: var(--muted); font-weight: 600; }

.progress {
  width: 100%;
  min-height: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(14, 18, 26, 0.92);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(143, 171, 255, 0.45);
}
.progress.hidden { display: none; }
.progress .bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
}
.progress.indeterminate .bar {
  width: 100%;
  opacity: 0.45;
}
.upload-file-progress-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.upload-file-progress-row {
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.upload-file-progress-meta {
  white-space: normal;
  overflow-wrap: anywhere;
}
.upload-file-progress-track {
  min-height: 8px;
}
.upload-file-progress-fill {
  background: linear-gradient(135deg, #6ce4ff, #7c61ff);
  height: 100%;
  width: 0%;
  transition: width 120ms linear;
}
#upload-progress-panel {
  width: 100%;
}
#upload-progress-text {
  margin-top: 8px;
}
.upload-progress-track {
  width: 100%;
  max-width: 620px;
  height: 12px;
  background: rgba(255,255,255,0.18);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 8px;
}
.upload-progress-fill {
  height: 100%;
  width: 0%;
  background: #63d2ff;
  transition: width 120ms linear;
}

.log {
  background: #0b0e16;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 14px;
  color: var(--muted);
  min-height: 120px;
  overflow-x: auto;
}

.download-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--accent);
  text-decoration: none;
}

.checkbox { display: flex; flex-direction: row; align-items: center; gap: 8px; }

.skeleton { background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.02) 50%, rgba(255,255,255,0.05) 75%); background-size: 400% 100%; animation: shimmer 1.2s ease-in-out infinite; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

/* Viewer */
.viewer-shell { display: flex; flex-direction: column; gap: 14px; }
.viewer-toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; justify-content: space-between; }
.viewer-toolbar .field { min-width: 260px; }
.toolbar-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.viewer-toggles { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.viewer-layout { display: grid; grid-template-columns: 280px 1fr 320px; gap: 12px; align-items: stretch; }
.viewer-panel { background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: 14px; padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.viewer-canvas { border: 1px solid var(--border); border-radius: 16px; min-height: 540px; background: radial-gradient(circle at 20% 20%, rgba(124,97,255,0.08), transparent 35%), #0b0e16; box-shadow: var(--shadow); }
.viewer-list { overflow: auto; max-height: 520px; }
.viewer-list .prop-row { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.05); font-size: 14px; }
.viewer-list ul.tree { list-style: none; padding-left: 12px; margin: 0; }
.viewer-list ul.tree li { margin: 4px 0; }
.viewer-list ul.tree span { color: var(--muted); font-size: 13px; }
.hidden { display: none !important; }

/* Model checking */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  align-items: end;
}
.controls-grid .inline { display: flex; gap: 10px; flex-wrap: wrap; }
.status {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  color: var(--muted);
}
.mc-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
.mc-sections { display: flex; flex-direction: column; gap: 12px; }
.mc-section {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(255,255,255,0.02);
}
.mc-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-size: 13px;
}
.chip-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.chip-toggle input { accent-color: var(--accent-2); }
.mc-table-wrap { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 10px; }
.mc-row {
  display: grid;
  gap: 8px;
  align-items: start;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.mc-header { position: sticky; top: 0; background: var(--card); z-index: 1; }
.mc-cell { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.mc-cell input {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
}
.mc-cell .issue-pill {
  align-self: flex-start;
  background: rgba(242,121,143,0.12);
  color: #f2798f;
  border: 1px solid rgba(242,121,143,0.4);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
}
.mc-cell .generated {
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
}
.virtual-viewport {
  max-height: 420px;
  overflow: auto;
}
.change-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.small-scroll { max-height: 240px; overflow: auto; }

@media (max-width: 720px) {
  .app-header { position: sticky; }
  main { padding: 12px; }
  .viewer-layout { grid-template-columns: 1fr; }
  .mc-layout { grid-template-columns: 1fr; }
}


.excel-layout {
  align-items: start;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 24px;
}
.excel-inline-controls {
  align-items: center;
}
.excel-inline-controls select {
  flex: 1;
  min-width: 220px;
}
.excel-download-box,
.excel-upload-box {
  margin-top: 18px;
}
.excel-update-options {
  margin-top: 12px;
}
#applyExcel {
  margin-top: 12px;
}
.excel-bottom-actions {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
}
@media (max-width: 900px) {
  .excel-layout {
    grid-template-columns: 1fr;
  }
  .excel-bottom-actions {
    justify-content: flex-start;
  }
}