/* Diderot tokens and component styles: get-real-xr/diderot, see docs/ui-design.md. */
:root {
  color-scheme: light;
  --accent: #5d71ff;
  --accent-hover: #7d8dff;
  --accent-soft: #eff1ff;
  --text: #0a1a35;
  --heading: #060f1e;
  --muted: #121212b3;
  --border: #12121221;
  --faint: #1212120f;
  --card: #f3f3ee66;
  --surface: #fff;
  --ivory: #fafaf8;
  --error: #c0231c;
  --radius: 8px;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --accent: #9ea9ff;
  --accent-hover: #bdc3ff;
  --accent-soft: #5d71ff20;
  --text: #ffffffe6;
  --heading: #fff;
  --muted: #ffffffb3;
  --border: #ffffff33;
  --faint: #ffffff0f;
  --card: #ffffff0f;
  --surface: #0a1a35;
  --ivory: #192841;
  --error: #ffa4a0;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font:
    14px/1.6 Poppins,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}
button,
input,
textarea,
select {
  font: inherit;
}
button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s;
}
button:disabled {
  opacity: 0.55;
  cursor: wait;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.primary {
  background: #5d71ff;
  color: white;
}
.primary:hover {
  background: #7d8dff;
}
.primary:active {
  background: #5567e8;
}
.outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.outline:hover,
.ghost:hover {
  background: var(--faint);
}
.ghost {
  background: transparent;
  color: var(--muted);
  padding: 6px 10px;
  font-size: 13px;
}
.chip {
  font-size: 12px;
  font-weight: 500;
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
  padding: 5px 10px;
}
.chip:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  color: var(--heading);
}
h1 {
  font:
    600 34px/1.3 Sora,
    sans-serif;
  letter-spacing: -1px;
  margin: 10px 0;
}
h2 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.5px;
}
h3 {
  font-size: 14px;
  font-weight: 500;
}
p + p {
  margin-top: 10px;
}
a {
  color: var(--accent);
}
.muted {
  color: var(--muted);
}
.small {
  font-size: 12px;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 1.8px;
  font-weight: 600;
  color: var(--accent);
}
.topbar {
  height: 76px;
  border-bottom: 1px solid var(--faint);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font:
    600 19px Sora,
    sans-serif;
}
.brand-divider {
  color: var(--border);
  font-weight: 400;
  margin: 0 5px;
}
.product {
  font:
    500 16px Poppins,
    sans-serif;
}
.account {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  min-width: 0;
}
#email {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 250px;
}
.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 38px 0 28px;
}
.badge {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 10px;
  color: var(--muted);
  padding: 4px 8px;
  white-space: nowrap;
}
.intro > .badge {
  background: var(--accent-soft);
  border: 0;
  color: var(--accent);
}
main {
  max-width: 1280px;
  margin: auto;
  padding: 0 40px;
}
.playground {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}
.panel {
  border: 1px solid var(--faint);
  border-radius: 12px;
  padding: 24px;
  background: var(--card);
  min-width: 0;
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.section-heading h2 {
  display: flex;
  align-items: center;
  gap: 10px;
}
.step {
  font:
    500 11px "IBM Plex Mono",
    monospace;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 23px;
  height: 23px;
  color: var(--muted);
}
.inline {
  display: flex;
  align-items: center;
  gap: 8px;
}
input,
textarea,
select {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 10px 12px;
  outline: none;
  min-width: 0;
}
input:focus,
textarea:focus,
select:focus {
  border-color: #cbd2ff;
  box-shadow: 0 0 0 4px #5d71ff26;
}
input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.65;
}
input,
textarea {
  width: 100%;
}
textarea {
  resize: vertical;
  line-height: 1.65;
}
select {
  padding: 5px 9px;
  font-size: 12px;
}
fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}
.examples {
  justify-content: flex-start;
  flex-wrap: wrap;
  margin: 10px 0 26px;
  gap: 8px;
}
.question-heading {
  margin-bottom: 4px;
}
.question {
  border-top: 1px solid var(--border);
  padding: 18px 0 0;
  margin-top: 16px;
}
.question-controls {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  align-items: center;
}
.question-controls input {
  font:
    12px "IBM Plex Mono",
    monospace;
  flex: 1;
  padding: 7px 10px;
}
.question-controls select {
  max-width: 130px;
}
.remove {
  font-size: 18px;
  padding: 0 5px;
}
.question label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 10px 0 6px;
}
.question .instructions {
  min-height: 73px;
}
.question .criteria {
  font-size: 12px;
}
.run-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 22px;
}
.json-detail {
  margin-top: 20px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
}
pre,
#brief {
  font:
    12px/1.65 "IBM Plex Mono",
    monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
pre {
  background: var(--surface);
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 400px;
  overflow: auto;
}
.results {
  min-height: 410px;
}
.empty {
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  gap: 12px;
  padding: 24px;
}
.empty p {
  max-width: 275px;
  font-size: 12px;
  color: var(--muted);
}
.empty-mark {
  font-size: 27px;
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 6px;
}
.answer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
}
.answer h3 {
  font:
    12px "IBM Plex Mono",
    monospace;
  color: var(--muted);
  margin-bottom: 7px;
  overflow-wrap: anywhere;
}
.answer .value {
  font:
    500 28px Sora,
    sans-serif;
  letter-spacing: -1px;
  margin: 8px 0;
}
.answer .prompt {
  font-size: 12px;
  overflow-wrap: anywhere;
}
.prob-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  font-size: 12px;
  margin-top: 12px;
}
.prob-row span {
  overflow-wrap: anywhere;
}
.track {
  height: 5px;
  border-radius: 4px;
  background: var(--faint);
  margin-top: 5px;
  overflow: hidden;
}
.fill {
  height: 100%;
  background: #5d71ff;
  border-radius: 4px;
}
.answer .small {
  margin-top: 8px;
}
#result-meta {
  border-top: 1px solid var(--border);
  padding-top: 12px;
  overflow-wrap: anywhere;
}
#result-meta:empty {
  display: none;
}
#result-note {
  margin-bottom: 10px;
}
.error {
  color: var(--error);
  background: var(--faint);
  padding: 12px;
  border-radius: 8px;
  font-size: 12px;
  margin: 12px 0;
  overflow-wrap: anywhere;
}
.agent {
  margin-top: 24px;
}
.agent-heading {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
}
.agent-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 22px;
  flex-shrink: 0;
}
.agent-controls {
  display: flex;
  gap: 12px;
  margin: 6px 0 10px;
}
.agent-controls input {
  max-width: 400px;
}
.agent-controls button {
  white-space: nowrap;
}
#handoff {
  margin-top: 22px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
#brief {
  margin-top: 14px;
  background: var(--surface);
}
#handoff .section-heading:last-child {
  margin: 10px 0 0;
}
.existing {
  margin-top: 16px;
}
.token-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--faint);
  padding: 10px 0;
  font-size: 12px;
  overflow-wrap: anywhere;
}
.token-row code {
  white-space: nowrap;
  color: var(--muted);
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0 32px;
  font-size: 10px;
  color: var(--muted);
}
.welcome {
  max-width: 540px;
  margin: 100px auto;
  text-align: center;
}
.welcome h1 {
  font-size: 40px;
  margin: 20px 0;
}
.welcome p {
  margin: 18px 0;
}
.welcome .button {
  margin: 12px 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}
[hidden] {
  display: none !important;
}
::selection {
  background: #5d71ff33;
  color: var(--accent);
}
@media (max-width: 900px) {
  .playground {
    grid-template-columns: 1fr;
  }
  .intro > .badge {
    display: none;
  }
  .results {
    min-height: 250px;
  }
  .empty {
    min-height: 190px;
  }
  h1 {
    font-size: 28px;
  }
  .topbar {
    padding: 0 24px;
  }
  main {
    padding: 0 24px;
  }
  .account {
    gap: 4px;
  }
  #email {
    max-width: 180px;
  }
}
@media (max-width: 540px) {
  main {
    padding: 0 16px;
  }
  .topbar {
    padding: 0 16px;
    height: 65px;
  }
  .brand {
    gap: 8px;
    font-size: 16px;
  }
  .brand-divider {
    margin: 0;
  }
  .brand img {
    width: 24px;
    height: 24px;
  }
  #email {
    display: none;
  }
  .intro {
    margin: 26px 0 22px;
  }
  h1 {
    font-size: 26px;
  }
  .panel {
    padding: 18px;
  }
  .agent-controls {
    flex-direction: column;
  }
  .agent-controls input {
    max-width: none;
  }
  .section-heading {
    gap: 8px;
  }
  .question-controls {
    flex-wrap: wrap;
  }
  .question-controls input {
    min-width: 80px;
  }
  .run-row .small {
    max-width: 150px;
  }
  .agent-heading {
    align-items: flex-start;
  }
  #handoff > .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
  footer {
    flex-direction: column;
    gap: 6px;
  }
  .welcome {
    margin-top: 70px;
  }
  .welcome h1 {
    font-size: 32px;
  }
}

.page-nav { display: flex; flex-wrap: wrap; gap: 24px; margin: -10px 0 24px; font-size: 12px; }
.chip[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.guidance { margin: 16px 0 24px; padding: 14px; border: 1px solid var(--border); border-radius: 8px; }
.guidance p { margin-top: 12px; }
.usage { margin-top: 24px; }
.table-scroll { overflow-x: auto; margin: 18px 0; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; }
.usage-note { margin-top: 14px; }
#subject { min-height: 230px; }
:target { scroll-margin-top: 20px; }