:root {
  color-scheme: dark;
  --anl-accent: #3c57a8;
  --anl-bg: #191d1f;
  --anl-surface: #282d2f;
  --anl-surface-elev: #353a3c;
  --anl-border: #454b4d;
  --anl-text: #e5e7eb;
  --anl-text-muted: #cbd5e1;
  --anl-cyan: #00a8f0;
  --anl-red: #e23846;
  --anl-success: #10b981;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--anl-bg);
  color: var(--anl-text);
  font: 14px/1.45 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.shell {
  margin: 0 auto;
  max-width: 1400px;
  min-height: 100vh;
  padding: 24px 20px 40px;
}

.topbar,
.card {
  border: 1px solid var(--anl-border);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(40, 45, 47, 0.98), rgba(34, 39, 41, 0.98));
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.topbar {
  margin-bottom: 16px;
  padding: 20px 22px;
}

.title-group {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.title-accent {
  display: grid;
  height: 44px;
  width: 44px;
  place-items: center;
  border-radius: 12px;
  background: var(--anl-accent);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--anl-cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar h1 {
  margin: 0 0 6px;
  font-size: 30px;
  line-height: 1.1;
}

.topbar p,
.muted {
  margin: 0;
  color: var(--anl-text-muted);
}

.workspace {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.sidebar {
  padding: 16px;
  position: sticky;
  top: 24px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.content-stack,
.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  padding: 18px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.card h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.hidden {
  display: none !important;
}

.notice {
  margin-bottom: 16px;
  border-radius: 12px;
  padding: 12px 14px;
  border: 1px solid transparent;
}

.notice.success {
  border-color: rgba(16, 185, 129, 0.5);
  background: rgba(16, 185, 129, 0.12);
}

.notice.error {
  border-color: rgba(226, 56, 70, 0.5);
  background: rgba(226, 56, 70, 0.12);
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 1px solid var(--anl-border);
  border-radius: 12px;
  background: #444b4e;
  color: var(--anl-text);
  padding: 10px 14px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

button:hover {
  border-color: #61758d;
  background: #4b5255;
}

button.primary {
  background: #3f57b8;
  border-color: #5872d1;
  color: #fff;
}

button.primary:hover {
  background: #4b63c4;
  border-color: #6f86dd;
}

button.secondary {
  background: #3a3f42;
  border-color: #586065;
  color: var(--anl-text);
}

button.secondary:hover {
  background: #464d51;
}

button.danger {
  border-color: rgba(226, 56, 70, 0.4);
}

button:disabled {
  cursor: default;
  opacity: 0.7;
}

.nav-button {
  width: 100%;
  text-align: left;
  font-weight: 700;
}

.toggle-row,
.checkbox-field {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle-row input,
.checkbox-field input {
  margin: 0;
}

.button-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.run-action {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.run-action > button {
  width: 100%;
  background: #6e7dd6;
  border-color: #8592de;
  color: #fff;
}

.run-action > button:hover {
  background: #7a88de;
  border-color: #9db6ff;
}

.run-action > button.primary {
  background: #3f57b8;
  border-color: #5872d1;
}

.seed-panel {
  border: 1px solid var(--anl-border);
  border-radius: 12px;
  background: rgba(25, 29, 31, 0.72);
  padding: 10px 12px;
}

.seed-panel summary,
.sheet-viewer-toggle summary {
  cursor: pointer;
  list-style: none;
  color: var(--anl-cyan);
  font-weight: 700;
}

.seed-panel summary::-webkit-details-marker,
.sheet-viewer-toggle summary::-webkit-details-marker {
  display: none;
}

.seed-panel summary::before,
.sheet-viewer-toggle summary::before {
  content: '+';
  display: inline-flex;
  justify-content: center;
  width: 18px;
  margin-right: 8px;
}

.seed-panel[open] summary::before,
.sheet-viewer-toggle[open] summary::before {
  content: '−';
}

.seed-content {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.seed-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.seed-block strong {
  font-size: 12px;
  color: var(--anl-text-muted);
}

.seed-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.seed-file {
  border: 1px solid rgba(0, 168, 240, 0.14);
  border-radius: 10px;
  background: rgba(53, 58, 60, 0.38);
  padding: 0;
  overflow: hidden;
}

.seed-file-button {
  all: unset;
  display: block;
  width: 100%;
  padding: 10px 12px;
  cursor: pointer;
}

.seed-file-button:hover {
  background: rgba(0, 168, 240, 0.08);
}

.seed-file-button.active {
  background: #3f57b8;
  color: #fff;
}

.seed-file-button.active .seed-file-name,
.seed-file-button.active .seed-file-path {
  color: #fff;
}

.seed-file-name {
  margin: 0 0 4px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.seed-file-path {
  margin: 0;
  color: var(--anl-text-muted);
  font-size: 12px;
  line-height: 1.5;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
}

.seed-note {
  margin: 0;
  color: var(--anl-text-muted);
  font-size: 12px;
}

.job,
.scenario {
  border: 1px solid var(--anl-border);
  background: var(--anl-surface-elev);
  border-radius: 12px;
  padding: 14px;
}

.job header,
.scenario header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.job code {
  display: block;
  margin-top: 8px;
  padding: 12px;
  border: 1px solid rgba(88, 114, 209, 0.35);
  border-radius: 10px;
  background: rgba(16, 21, 27, 0.9);
  color: #dbeafe;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.job-actions,
.scenario-footer,
.scenario-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  text-transform: lowercase;
}

.status.running {
  background: rgba(0, 168, 240, 0.12);
  color: var(--anl-cyan);
}

.status.passed,
.status.ready {
  background: rgba(16, 185, 129, 0.12);
  color: var(--anl-success);
}

.status.failed,
.status.error {
  background: rgba(226, 56, 70, 0.12);
  color: #ff8993;
}

.status.draft {
  background: rgba(148, 163, 184, 0.12);
  color: #cbd5e1;
}

.chip {
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(0, 168, 240, 0.08);
  color: var(--anl-text);
  border: 1px solid rgba(0, 168, 240, 0.18);
}

.scenario-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.scenario-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.scenario-form input,
.scenario-form select {
  border: 1px solid var(--anl-border);
  border-radius: 10px;
  background: #1f2426;
  color: var(--anl-text);
  padding: 10px 12px;
}

.scenario-form .checkbox-field {
  align-self: end;
}

.log {
  margin: 0;
  max-height: 520px;
  overflow: auto;
  border: 1px solid var(--anl-border);
  border-radius: 12px;
  background: #111518;
  padding: 14px;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.summary-empty {
  border: 1px dashed var(--anl-border);
  border-radius: 12px;
  padding: 18px;
  color: var(--anl-text-muted);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.summary-card {
  border: 1px solid var(--anl-border);
  border-radius: 12px;
  padding: 14px;
  background: rgba(53, 58, 60, 0.4);
}

.summary-card.pass {
  border-color: rgba(16, 185, 129, 0.3);
}

.summary-card.fail {
  border-color: rgba(226, 56, 70, 0.3);
}

.summary-card h3,
.summary-issues h3,
.sheet-section h3 {
  margin: 0 0 10px;
}

.summary-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 10px;
}

.metric-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.metric-table th,
.metric-table td {
  border-top: 1px solid rgba(69, 75, 77, 0.8);
  padding: 8px 6px;
  text-align: left;
  vertical-align: top;
}

.delta-zero {
  color: var(--anl-success);
}

.delta-warn {
  color: #facc15;
}

.delta-bad {
  color: #fb7185;
}

.summary-issues {
  margin-top: 16px;
  border: 1px solid rgba(226, 56, 70, 0.28);
  border-radius: 12px;
  padding: 14px;
  background: rgba(226, 56, 70, 0.06);
}

.summary-issues ul {
  margin: 0;
  padding-left: 18px;
}

.summary-header {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.summary-stat {
  border: 1px solid var(--anl-border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(53, 58, 60, 0.35);
}

.summary-stat strong {
  display: block;
  margin-top: 6px;
  font-size: 22px;
}

.sheet-viewer {
  margin-top: 14px;
}

.preview-group strong {
  display: block;
  margin-bottom: 6px;
}

.source-workbook-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.sheet-table-wrap {
  overflow: auto;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  background: #fff;
}

.sheet-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  color: #111827;
  font-size: 13px;
}

.sheet-table th,
.sheet-table td {
  border: 1px solid #e5e7eb;
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

.sheet-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f3f4f6;
  color: #111827;
}

.sheet-table tbody tr:nth-child(even) td {
  background: #fafafa;
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .sidebar-nav {
    flex-direction: row;
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 16px 14px 30px;
  }

  .topbar h1 {
    font-size: 24px;
  }

  .scenario-form,
  .summary-header,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .row,
  .job-actions,
  .scenario-footer,
  .source-workbook-actions,
  .sidebar-nav {
    flex-direction: column;
  }

  .section-head {
    flex-direction: column;
  }
}