:root {
  --ink: #17283d;
  --muted: #526579;
  --canvas: #f4f6f9;
  --surface: #fff;
  --navy: #152b44;
  --primary: #245bce;
  --primary-soft: #e8f0fc;
  --border: #dce2ea;
  --input-border: #a5b3c2;
  --danger: #b32e38;
  --danger-soft: #fff1f2;
  --warning: #8b4b18;
  --warning-soft: #fff1e8;
  --success: #24654a;
  --success-soft: #eaf5ef;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; color: var(--ink); background: var(--canvas); line-height: 1.65; font-size: 15px; }
a { color: var(--primary); text-underline-offset: 3px; }
button, input, select, textarea { font: inherit; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
.skip-link { position: absolute; left: 16px; top: -80px; z-index: 10; padding: 12px; background: var(--surface); }
.skip-link:focus { top: 12px; }
.app-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.header-inner { max-width: 1200px; margin: auto; min-height: 76px; padding: 14px 32px; display: flex; align-items: center; gap: 32px; }
.brand { font-size: 19px; font-weight: 750; text-decoration: none; color: var(--navy); white-space: nowrap; }
.app-nav { display: flex; gap: 8px; align-items: center; flex: 1; flex-wrap: wrap; }
.app-nav a { color: var(--muted); padding: 8px 12px; border-radius: 6px; text-decoration: none; font-weight: 600; }
.app-nav a[aria-current=page] { color: var(--primary); background: var(--primary-soft); }
.app-nav a:hover { background: var(--canvas); }
.account-menu { display: flex; align-items: center; gap: 14px; min-width: 0; }
.account-email { font-size: 12px; color: var(--muted); max-width: 190px; overflow-wrap: anywhere; }
main { max-width: 1200px; margin: 36px auto; padding: 0 32px 64px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 28px; line-height: 1.4; margin-bottom: 8px; letter-spacing: -.02em; }
h2 { font-size: 19px; line-height: 1.5; margin-bottom: 12px; }
h3 { font-size: 15px; margin-bottom: 8px; }
p { margin-bottom: 14px; }
.page-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 24px; }
.page-heading p { color: var(--muted); margin-bottom: 0; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .04em; color: var(--muted); margin-bottom: 8px; }
.muted, .field-hint { color: var(--muted); font-size: 13px; }
.muted, .break-word { overflow-wrap: anywhere; }
.breadcrumb { margin-bottom: 20px; font-size: 13px; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px; margin-bottom: 24px; min-width: 0; }
.panel > :last-child { margin-bottom: 0; }
.panel-heading { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 18px; }
.panel-heading h2 { margin: 0; }
.workspace { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; align-items: start; }
.setup-list { list-style: none; padding: 0; margin: 20px 0; }
.setup-list li { padding: 12px 0; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 0; margin: 0 0 28px; }
.steps li { display: flex; gap: 12px; align-items: center; padding: 14px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted); }
.steps li[aria-current=step] { border-color: var(--primary); color: var(--ink); background: var(--primary-soft); font-weight: 650; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; background: var(--canvas); color: var(--muted); font-size: 13px; font-weight: 700; }
[aria-current=step] .step-number { background: var(--primary); color: var(--surface); }
.field { margin-bottom: 22px; }
label { display: block; margin-bottom: 6px; font-weight: 600; }
.required { margin-left: 8px; font-size: 11px; color: var(--muted); font-weight: 500; }
input[type=url], input[type=email], input[type=password], textarea, select { display: block; width: 100%; padding: 11px 12px; border: 1px solid var(--input-border); border-radius: 7px; color: var(--ink); background: var(--surface); }
textarea { resize: vertical; min-height: 120px; }
.field-hint { margin: 6px 0 0; }
select { max-width: 240px; }
input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--primary); flex-shrink: 0; margin: 3px 0; }
input[type=submit], button, .button { display: inline-flex; justify-content: center; align-items: center; border: 1px solid transparent; border-radius: 7px; padding: 10px 18px; background: var(--primary); color: var(--surface); font-weight: 600; cursor: pointer; text-decoration: none; min-height: 44px; }
input[type=submit]:hover, button:hover, .button:hover { filter: brightness(.94); }
button:disabled, input[type=submit]:disabled { cursor: not-allowed; opacity: .55; }
.button-secondary { background: var(--surface); color: var(--ink); border-color: var(--input-border); }
.button-quiet { background: transparent; color: var(--muted); padding: 6px 10px; }
.button-danger { background: var(--surface); color: var(--danger); border-color: var(--danger); }
.button-wide { width: 100%; }
.actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.actions p { margin: 0; }
.badge { display: inline-block; border-radius: 5px; padding: 3px 9px; font-size: 12px; font-weight: 650; background: var(--canvas); color: var(--muted); white-space: nowrap; }
.badge-info { background: var(--primary-soft); color: var(--primary); }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.flash, .callout { border-radius: 7px; border-left: 3px solid var(--primary); padding: 14px 18px; background: var(--primary-soft); margin: 0 0 20px; overflow-wrap: anywhere; }
.alert, .callout-warning { background: var(--warning-soft); border-color: var(--warning); }
.callout > :last-child, .flash > :last-child { margin-bottom: 0; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 15px 12px; text-align: left; border-bottom: 1px solid var(--border); overflow-wrap: anywhere; }
th { color: var(--muted); font-size: 12px; font-weight: 600; background: var(--canvas); }
tbody tr:last-child td { border-bottom: 0; }
.table-primary { font-weight: 600; }
.table-sub { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
.empty-state { padding: 28px 16px; text-align: center; color: var(--muted); border: 1px dashed var(--input-border); border-radius: 8px; }
.empty-state p { margin: 6px 0 0; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 20px 0; }
.metric { background: var(--canvas); padding: 16px; border-radius: 8px; }
.metric strong { display: block; font-size: 26px; line-height: 1.3; margin-top: 6px; }
.metric span { font-size: 12px; color: var(--muted); }
.scenario-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.scenario-select { display: flex; gap: 12px; align-items: flex-start; margin: 0; font-size: 18px; }
.scenario-heading h3 { font-size: 18px; margin: 0; }
.scenario-heading .muted { margin: 6px 0 0; }
.case-select { display: flex; align-items: flex-start; gap: 12px; }
.case-select span { overflow-wrap: anywhere; }
.progress-log { max-height: 480px; overflow: auto; padding: 16px; background: var(--surface-soft); border-radius: 8px; }
.result-summary-cases { list-style: none; padding: 0; margin: 12px 0 0; }
.result-summary-cases > li { padding: 12px 0; border-top: 1px solid var(--border); }
.result-summary-cases p { margin: 6px 0; white-space: pre-wrap; }
.result-summary-cases details { margin-top: 6px; }
.case-table-scroll { margin-top: 16px; }
.case-table { table-layout: fixed; min-width: 1056px; }
.case-choice-column { width: 56px; }
.case-title-column { width: 180px; }
.case-conditions-column { width: 240px; }
.case-steps-column { width: 360px; }
.case-expected-column { width: 220px; }
.case-result-column { width: 220px; }
.case-notes-column { width: 280px; }
.case-table th, .case-table td { vertical-align: top; }
.case-table tbody th { background: var(--surface); color: var(--ink); font-size: 14px; font-weight: 400; }
.case-table tr > :first-child { position: sticky; left: 0; z-index: 1; background: var(--surface); }
.case-table tr > :nth-child(2) { position: sticky; left: 56px; z-index: 1; background: var(--surface); box-shadow: 1px 0 var(--border); }
.case-retest { margin-top: 12px; }
.case-table pre { margin: 0; }
.case-title { white-space: pre-wrap; margin: 6px 0; }
.scenario-context { margin: 0 0 20px; }
.scenario-context dt { font-weight: 650; margin-top: 12px; }
.scenario-context dd { margin: 4px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.selection-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.selection-toolbar p, .selection-toolbar label { margin: 0; }
.scenario-status { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 18px; }
.scenario-status > span { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.details-box { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 16px; }
summary { cursor: pointer; font-weight: 600; overflow-wrap: anywhere; }
details[open] > summary { margin-bottom: 16px; }
.details-body { padding: 0 0 2px 18px; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; font-size: 14px; margin: 0 0 18px; }
code { font-size: .9em; background: var(--canvas); padding: 2px 5px; border-radius: 4px; overflow-wrap: anywhere; }
ol.instructions { padding-left: 22px; }
ol.instructions li { margin-bottom: 10px; }
.run-summary { margin-bottom: 24px; }
.start-panel { border-color: var(--primary); }
.result-item { border-left: 3px solid var(--border); padding: 0 0 0 16px; margin-top: 20px; }
.auth-shell { max-width: 440px; margin: 64px auto; }
.auth-shell .panel { padding: 32px; }
.auth-shell h1 { font-size: 24px; }
.form-page { max-width: 600px; }
.auth-code { display: block; font-family: monospace; font-size: 26px; letter-spacing: .1em; margin: 12px 0; overflow-wrap: anywhere; }
@media (max-width: 960px) {
  .header-inner { flex-wrap: wrap; gap: 12px 24px; }
  .account-menu { margin-left: auto; }
  .account-email { display: none; }
  .workspace { grid-template-columns: minmax(0, 1fr); }
  .workspace > aside { grid-row: 1; }
}
@media (max-width: 600px) {
  main { margin-top: 24px; padding: 0 16px 40px; }
  .header-inner { padding: 12px 16px; gap: 10px; }
  .brand { font-size: 17px; }
  .app-nav { order: 3; flex-basis: 100%; gap: 4px; }
  .app-nav a { font-size: 13px; padding: 8px 10px; }
  h1 { font-size: 24px; }
  .page-heading { flex-direction: column; gap: 12px; }
  .panel, .auth-shell .panel { padding: 20px; }
  .steps { gap: 6px; }
  .steps li { padding: 10px 6px; flex-direction: column; text-align: center; font-size: 12px; gap: 6px; }
  .metrics { gap: 6px; }
  .metric { padding: 12px 8px; }
  .metric strong { font-size: 23px; }
  .scenario-heading { flex-wrap: wrap; }
  .scenario-select, .scenario-heading h3 { font-size: 16px; }
  .auth-shell { margin: 32px auto; }
  th, td { padding: 12px 8px; }
}
.monitor-actions { position: sticky; top: 0; z-index: 10; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; background: var(--surface, white); border: 1px solid var(--border); border-radius: 8px; padding: 12px; margin-bottom: 16px; }
.monitor-actions form, .browser-dialog-heading form { margin: 0; }
.browser-dialog { width: min(1400px, 96vw); max-width: 96vw; height: 90vh; max-height: 90vh; padding: 0; border: 1px solid var(--border); border-radius: 12px; background: white; }
.browser-dialog[open] { display: flex; flex-direction: column; }
.browser-dialog::backdrop { background: rgb(0 0 0 / 65%); }
.browser-dialog-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 12px 16px; }
.browser-dialog-heading h2 { flex: 1; margin: 0; font-size: 16px; }
.browser-dialog iframe { flex: 1; width: 100%; min-height: 0; border: 0; }
.run-monitor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 16px; }
.scenario-monitor { min-width: 0; padding: 16px; border: 1px solid var(--border); border-radius: 10px; }
.scenario-monitor .panel-heading { align-items: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.scenario-monitor h3 { margin: 0; font-size: 16px; overflow-wrap: anywhere; }
.scenario-monitor-log { height: 200px; margin: 12px 0; font-size: 12px; }
.scenario-monitor-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.scenario-monitor-actions form { margin: 0; }
.scenario-browser { width: 100%; aspect-ratio: 16 / 11; margin: 12px 0; overflow: hidden; border: 1px solid var(--border); border-radius: 6px; background: #252525; }
.scenario-browser iframe { display: block; width: 100%; height: 100%; border: 0; }
.scenario-browser { position: relative; }
.scenario-browser-expand { position: absolute; inset: 0; width: 100%; height: 100%; padding: 0; border: 0; border-radius: 0; background: transparent; cursor: zoom-in; }
.scenario-browser-expand:hover, .scenario-browser-expand:active { background: transparent; }
.scenario-browser-expand:focus-visible { outline: 3px solid var(--primary); outline-offset: -3px; }