:root {
  color-scheme: light;
  --ground: #f4f0e7;
  --paper: #fffcf5;
  --ink: #202b2a;
  --muted: #5d6660;
  --line: #d4d1c5;
  --accent: #b93616;
  --accent-hover: #922a11;
  --accent-wash: #fce6d8;
  --ground-shade: #e7e1d3;
  --state-wash: #e2e4dc;
  --draft-shadow: #202b2a08;
  --text: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 4rem; }
body {
  margin: 0;
  padding: 2.4rem 0 0;
  background: radial-gradient(ellipse at 10% 0%, var(--ground-shade) 0%, transparent 65%), var(--ground);
  color: var(--ink);
  font: 16px/1.6 var(--text);
  overflow-wrap: anywhere;
}
a { color: inherit; text-underline-offset: .25em; }
a:hover { color: var(--accent); }
button, textarea, input { font: inherit; }
button {
  min-height: 44px;
  padding: .55rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
  transition: background .15s, color .15s;
}
button:hover { background: var(--ink); color: var(--paper); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--paper); }
button.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
textarea { display: block; width: 100%; min-height: 130px; padding: .8rem; border: 1px solid var(--muted); background: var(--paper); color: var(--ink); resize: vertical; }
label { display: block; margin: 1rem 0 .5rem; font-weight: 600; }
form { margin: 0; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.5rem, 5.5vw, 5.2rem); line-height: 1.04; letter-spacing: -.06em; font-weight: 500; margin-bottom: 1.25rem; }
h2 { font-size: 1.35rem; line-height: 1.3; letter-spacing: -.035em; font-weight: 600; }
h3 { font-size: 1.08rem; line-height: 1.4; font-weight: 600; }
code, pre, .mono { font-family: var(--mono); }
code { font-size: .72rem; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; font-size: .75rem; line-height: 1.7; margin: .5rem 0; }
time { font: .68rem/1.6 var(--mono); color: var(--muted); }
main, .masthead, .page-footer { width: min(1500px, calc(100% - 6rem)); margin-inline: auto; }
.simulation { position: fixed; inset: 0 0 auto; min-height: 2.4rem; z-index: 10; padding: .5rem 1rem; background: var(--ink); color: var(--paper); text-align: center; font: 500 .75rem/1.5 var(--mono); letter-spacing: .03em; }
.skip { position: fixed; top: -5rem; left: 1rem; z-index: 20; padding: .5rem 1rem; background: var(--paper); }
.skip:focus { top: 3rem; }
.masthead { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 2.5rem; padding-block: 1.6rem; border-bottom: 1px solid var(--ink); }
.wordmark { text-decoration: none; font-size: 1.8rem; line-height: 1; letter-spacing: -.06em; font-weight: 700; }
.brand-dot { color: var(--accent); }
nav { display: flex; gap: 1.5rem; }
nav a { display: inline-block; padding: .5rem 0; font-size: .9rem; text-decoration: none; font-weight: 600; }
.runtime { margin: 0 0 0 auto; font: .68rem/1.7 var(--mono); color: var(--muted); }
.eyebrow { font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; margin-bottom: .85rem; }
.eyebrow .mono { text-transform: none; }
.page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; padding-block: 3.8rem 2.8rem; }
.page-heading p:last-child { margin-bottom: 0; color: var(--muted); }
.large-count { font-size: 4.5rem; line-height: 1; letter-spacing: -.06em; text-align: right; color: var(--ink); }
.large-count span { display: block; margin-top: .75rem; font-size: .7rem; line-height: 1.5; letter-spacing: 0; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding-block: 1.5rem .7rem; border-top: 1px solid var(--ink); }
.section-heading h2 { margin: 0; }
.section-heading > span { font: .72rem var(--mono); color: var(--muted); }
.count { margin-left: .7rem; color: var(--muted); font: .8rem var(--mono); }
.inbox-group { margin-bottom: 2.4rem; }
.case-list { list-style: none; padding: 0; margin: 0; }
.case-row { display: grid; grid-template-columns: minmax(0, 1fr) auto 2rem; align-items: center; gap: 1rem; padding: 1.3rem .4rem; border-bottom: 1px solid var(--line); text-decoration: none; }
.case-row:hover { background: var(--paper); }
.case-title { font-size: 1.1rem; font-weight: 600; }
.case-title small { display: block; color: var(--muted); font-size: .8rem; font-weight: 400; margin-top: .3rem; }
.row-arrow { font-size: 1.5rem; justify-self: end; }
.scenario-bar { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 2rem; margin-top: 3.5rem; border-top: 3px solid var(--ink); padding: 2rem 0; }
.scenario-buttons, .actions { display: flex; flex-wrap: wrap; gap: .6rem; align-items: flex-start; }
.scenario-buttons button { border-color: var(--line); font-size: .8rem; }
.reset-demo { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.reset-demo form { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.reset-demo label { font-size: .85rem; }
.empty { border-block: 1px solid var(--line); padding: 3rem 0; }
.quiet { color: var(--muted); font-size: .85rem; }
.case-heading { padding-block: 1.6rem 2.5rem; }
.back-link { display: inline-block; font-size: .85rem; margin-bottom: 2rem; }
.case-heading h1 { max-width: 1050px; font-size: clamp(2.2rem, 4.6vw, 4.5rem); }
.case-summary { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1.2rem; font-size: .82rem; color: var(--muted); }
.state { font: .7rem var(--mono); color: var(--ink); padding: .4rem .6rem; background: var(--state-wash); }
[data-state="NEEDS_APPROVAL"] .state { color: var(--accent); background: var(--accent-wash); }
.workspace-columns { display: grid; grid-template-columns: minmax(210px, .85fr) minmax(0, 1.8fr) minmax(235px, 1fr); border-top: 1px solid var(--ink); }
.workspace-columns > * { min-width: 0; padding-top: 1.5rem; }
.workspace-columns h2 { margin-bottom: 2rem; font-size: 1.12rem; }
.section-number { display: inline-block; margin-right: .5rem; font: .65rem var(--mono); color: var(--muted); }
.evidence-panel { padding-right: 1.5rem; }
.conversation { padding-inline: 1.8rem; border-inline: 1px solid var(--line); }
.staff-panel { padding-left: 1.5rem; }
.evidence-record { padding-bottom: 1.6rem; margin-bottom: 1.6rem; border-bottom: 1px solid var(--line); }
.evidence-record h3 { font-size: .95rem; }
.facts { margin: 1.3rem 0; }
.facts > div { margin-bottom: .7rem; }
.facts dt { font-size: .7rem; color: var(--muted); }
.facts dd { margin: .08rem 0 0; font-size: .82rem; }
.facts dd.mono { font-size: .73rem; }
.screenshot { display: block; }
.screenshot img { display: block; max-width: 100%; height: auto; border: 1px solid var(--line); }
.message { padding-bottom: 1.5rem; margin-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.message header .eyebrow { margin-bottom: .25rem; }
.message header { margin-bottom: 1.2rem; }
.letter-body { white-space: pre-wrap; font-size: .92rem; line-height: 1.8; margin-block: 1rem 1.5rem; }
.draft { margin-block: 2rem; padding: 1.5rem; background: var(--paper); border-top: 3px solid var(--accent); box-shadow: 0 8px 22px var(--draft-shadow); }
.draft > .eyebrow { color: var(--accent); }
.approval { background: var(--accent-wash); padding: 1.3rem; border-top: 3px solid var(--accent); }
.approval > .eyebrow { color: var(--accent); }
.approval h3 { font-size: 1.5rem; letter-spacing: -.04em; }
.approval > p:not(.eyebrow) { font-size: .85rem; }
.staff-controls { display: flex; flex-wrap: wrap; gap: .75rem; padding-block: 1.5rem; margin-top: 1.5rem; border-top: 1px solid var(--line); }
.customer-reply { margin-block: 2rem; }
summary { cursor: pointer; font-size: .88rem; font-weight: 600; padding-block: .6rem; }
.customer-reply button { margin-top: .8rem; }
.timeline { margin-top: 4rem; }
.timeline .section-heading { align-items: flex-end; padding-bottom: 1.5rem; }
.timeline .eyebrow { margin-bottom: .5rem; }
.timeline-rows { list-style: none; margin: 0; padding: 0; }
.timeline-row { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 2rem; padding: 1.4rem 0; border-bottom: 1px solid var(--line); animation: rise-in .45s both; }
.timeline-meta { display: flex; flex-direction: column; align-items: flex-start; gap: .25rem; }
.timeline-meta .eyebrow { margin: 0; }
.duration { font-size: .68rem; color: var(--muted); }
.timeline-detail { border-left: 2px solid var(--line); padding-left: 1.5rem; min-width: 0; }
.timeline-detail p, .timeline-detail h3 { margin-bottom: .4rem; }
.timeline-detail p { font-size: .82rem; }
.timeline-detail .reason { font-size: .75rem; color: var(--accent); }
.timeline-row:nth-child(1) { animation-delay: 0ms; }
.timeline-row:nth-child(2) { animation-delay: 35ms; }
.timeline-row:nth-child(3) { animation-delay: 70ms; }
.timeline-row:nth-child(4) { animation-delay: 105ms; }
.timeline-row:nth-child(5) { animation-delay: 140ms; }
.timeline-row:nth-child(6) { animation-delay: 175ms; }
.timeline-row:nth-child(7) { animation-delay: 210ms; }
.timeline-row:nth-child(8) { animation-delay: 245ms; }
.timeline-row:nth-child(9) { animation-delay: 280ms; }
.timeline-row:nth-child(10) { animation-delay: 315ms; }
.timeline-row:nth-child(11) { animation-delay: 350ms; }
.timeline-row:nth-child(12) { animation-delay: 385ms; }
@keyframes rise-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.outbox-list { max-width: 900px; }
.outbox-letter { border-top: 1px solid var(--ink); padding-block: 2rem; }
.outbox-letter header { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.outbox-letter h2 { font-size: 1.7rem; }
.notice { padding-block: 4rem; max-width: 850px; }
.notice h1 { font-size: 3rem; }
.login { max-width: 440px; }
.login input:not([type="hidden"]), .custom-case input:not([type="hidden"]) { width: 100%; padding: .7rem; border: 1px solid var(--muted); background: var(--paper); color: var(--ink); }
.login button, .custom-case button { margin-top: 1.5rem; }
.rules-table { width: 100%; border-collapse: collapse; margin-bottom: 2rem; font-size: .85rem; }
.rules-table caption { text-align: left; font-weight: 600; padding-block: 1rem; }
.rules-table th, .rules-table td { text-align: left; vertical-align: top; padding: .7rem; border-bottom: 1px solid var(--line); }
.rules-action-name { white-space: nowrap; width: 1%; }
.staff-session { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; font-size: .8rem; }
.model-notice { padding: .75rem 1rem; font-size: .85rem; background: var(--accent-wash); }
.page-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 5rem; padding-block: 1.5rem; border-top: 1px solid var(--ink); color: var(--muted); font-size: .7rem; }
@media (min-width: 1600px) { .workspace-columns { grid-template-columns: minmax(240px, 1fr) minmax(0, 2fr) minmax(260px, 1fr); } }
@media (max-width: 1100px) {
  main, .masthead, .page-footer { width: calc(100% - 3rem); }
  .runtime { width: 100%; margin-left: 0; }
  .workspace-columns { grid-template-columns: 1fr; }
  .workspace-columns > * { border: 0; padding: 1.5rem 0; }
  .workspace-columns > .conversation { order: 1; border-block: 1px solid var(--line); }
  .workspace-columns > .staff-panel { order: 2; }
  .workspace-columns > .evidence-panel { order: 3; }
  .facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .4rem 1.5rem; }
  .evidence-record { max-width: 720px; }
  .screenshot { max-width: 400px; }
}
@media (max-width: 600px) {
  main, .masthead, .page-footer { width: calc(100% - 2.5rem); }
  .masthead { justify-content: space-between; gap: 1rem; }
  .page-heading { padding-block: 2.5rem 2rem; gap: 1rem; }
  .page-heading > div { min-width: 0; }
  .large-count { font-size: 3rem; }
  .page-heading p { font-size: .85rem; }
  .page-heading .large-count { font-size: 3rem; }
  .case-row { grid-template-columns: minmax(0, 1fr) 1.5rem; gap: .6rem; }
  .case-row time { grid-column: 1; grid-row: 2; }
  .row-arrow { grid-column: 2; grid-row: 1 / 3; }
  .section-heading { flex-wrap: wrap; gap: .5rem; }
  .scenario-bar { grid-template-columns: 1fr; gap: 1rem; }
  .timeline-row { grid-template-columns: 1fr; gap: .7rem; }
  .timeline-meta { gap: .3rem; }
  .timeline-detail { padding-left: 1rem; }
  .case-heading { padding-bottom: 1.5rem; }
  .case-summary { align-items: flex-start; flex-direction: column; }
  .draft { padding: 1.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}