:root {
  color-scheme: light;
  --bg: oklch(1 0 0);
  --surface: oklch(0.968 0 0);
  --surface-strong: oklch(0.925 0 0);
  --ink: oklch(0.2 0.014 4);
  --muted: oklch(0.44 0.012 4);
  --line: oklch(0.86 0.008 4);
  --primary: oklch(0.56 0.18 5);
  --primary-hover: oklch(0.5 0.18 5);
  --primary-soft: oklch(0.95 0.035 5);
  --accent: oklch(0.53 0.15 235);
  --accent-soft: oklch(0.95 0.025 235);
  --success: oklch(0.47 0.12 153);
  --success-soft: oklch(0.95 0.035 153);
  --warning: oklch(0.49 0.115 70);
  --warning-soft: oklch(0.95 0.045 70);
  --danger: oklch(0.48 0.18 25);
  --focus: oklch(0.58 0.16 235);
  --radius: 12px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
}

button,
input,
textarea {
  font: inherit;
}

button,
a,
input,
textarea {
  outline: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--focus) 35%, transparent);
}

[hidden] {
  display: none !important;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  max-width: 1640px;
  margin: 0 auto;
  padding: 26px 32px 20px;
  border-bottom: 1px solid var(--line);
}

.product-name {
  margin: 0 0 2px;
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 750;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 1.65rem;
  letter-spacing: -0.025em;
  line-height: 1.2;
  text-wrap: balance;
}

h2 {
  margin-bottom: 4px;
  font-size: 1.08rem;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h3 {
  margin: 0;
  font-size: 0.92rem;
  text-wrap: balance;
}

.service-state {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 0.88rem;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--warning);
}

.service-state.ready .status-dot {
  background: var(--success);
}

.service-state.error .status-dot {
  background: var(--danger);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(360px, 0.76fr) minmax(680px, 1.4fr);
  min-height: calc(100vh - 174px);
  max-width: 1640px;
  margin: 0 auto;
}

.composer,
.results {
  min-width: 0;
  padding: 28px 32px 36px;
}

.composer {
  border-right: 1px solid var(--line);
}

.results {
  background: var(--surface);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
}

.section-heading p,
.feedback-heading p {
  max-width: 68ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.88rem;
  text-wrap: pretty;
}

#character-count,
.latency {
  flex: none;
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

#character-count.near-limit {
  color: var(--danger);
  font-weight: 700;
}

.field {
  display: block;
}

.field > span {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 7px;
  font-size: 0.84rem;
  font-weight: 700;
}

.field small {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 500;
}

.api-auth {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.api-auth-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 7px;
  font-size: 0.84rem;
  font-weight: 700;
}

.api-auth-label small {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 500;
}

.api-key-control {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.api-key-control input {
  min-width: 0;
}

.api-key-control button {
  flex: none;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
}

.api-key-control button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.api-key-control input[aria-invalid="true"] {
  border-color: var(--danger);
}

.api-auth p {
  max-width: 68ch;
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.76rem;
}

input,
textarea {
  display: block;
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  transition: border-color 180ms ease-out, box-shadow 180ms ease-out;
}

textarea {
  min-height: 340px;
  resize: vertical;
  padding: 15px;
}

input::placeholder,
textarea::placeholder {
  color: oklch(0.48 0.01 4);
}

input:hover,
textarea:hover {
  border-color: oklch(0.7 0.015 4);
}

input:focus,
textarea:focus {
  border-color: var(--focus);
}

.composer-footer,
.feedback-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 14px;
}

.composer-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

#submit-button,
#feedback-button {
  position: relative;
  min-height: 42px;
  padding: 9px 17px;
  border: 0;
  border-radius: 9px;
  background: var(--primary);
  color: white;
  cursor: pointer;
  font-weight: 750;
  transition: background 180ms ease-out, transform 180ms ease-out, opacity 180ms ease-out;
}

#submit-button {
  min-width: 190px;
}

#submit-button:hover:not(:disabled),
#feedback-button:hover:not(:disabled) {
  background: var(--primary-hover);
}

#submit-button:active:not(:disabled),
#feedback-button:active:not(:disabled) {
  transform: translateY(1px);
}

#submit-button:disabled,
#feedback-button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.button-progress {
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: white;
  transform: scaleX(0);
  transform-origin: left;
}

#submit-button.loading .button-progress {
  animation: loading 1.1s ease-in-out infinite;
}

@keyframes loading {
  0% { transform: scaleX(0); transform-origin: left; }
  48% { transform: scaleX(0.8); transform-origin: left; }
  52% { transform: scaleX(0.8); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

.form-error {
  min-height: 24px;
  margin: 9px 0 0;
  color: var(--danger);
  font-size: 0.86rem;
  font-weight: 650;
}

.examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.examples button {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
}

.examples button:hover {
  border-color: var(--primary);
  color: var(--primary-hover);
}

.empty-state {
  max-width: 430px;
  margin: 72px auto 0;
  color: var(--muted);
  text-align: center;
}

.empty-state p {
  margin-bottom: 7px;
  text-wrap: pretty;
}

.empty-state strong {
  color: var(--ink);
}

.empty-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 42px;
  margin: 0 auto 15px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary-hover);
  font-size: 0.86rem;
  font-weight: 800;
}

.result-content {
  animation: reveal 200ms ease-out both;
}

@keyframes reveal {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.comparison-summary {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: oklch(0.29 0.07 235);
}

.comparison-summary.agree {
  background: var(--success-soft);
  color: oklch(0.29 0.07 153);
}

.comparison-summary.diverge {
  background: var(--warning-soft);
  color: oklch(0.29 0.07 70);
}

.summary-symbol {
  flex: none;
  font-size: 1.08rem;
  font-weight: 850;
}

.comparison-summary p {
  margin: 2px 0 0;
  font-size: 0.84rem;
}

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

.model-result {
  min-width: 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}

.model-result.candidate {
  border-color: color-mix(in oklch, var(--accent) 52%, var(--line));
}

.model-result.safe-candidate {
  grid-column: 1 / -1;
  border-width: 2px;
}

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

.model-heading > div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.experiment-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: -2px 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
}

.experiment-note strong {
  color: oklch(0.3 0.09 235);
}

.model-badge,
.model-action,
.action-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 780;
  white-space: nowrap;
}

.model-badge {
  background: var(--accent-soft);
  color: oklch(0.3 0.09 235);
}

.model-badge.baseline {
  background: var(--surface-strong);
  color: var(--muted);
}

.model-action {
  background: var(--warning-soft);
  color: oklch(0.31 0.07 70);
}

.model-action.auto_select,
.action-badge.auto_select {
  background: var(--success-soft);
  color: oklch(0.29 0.075 153);
}

.model-action.show_three {
  background: var(--accent-soft);
  color: oklch(0.29 0.075 235);
}

.decision {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 12px;
  padding: 10px 11px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: oklch(0.29 0.07 235);
}

.decision.auto_select {
  background: var(--success-soft);
  color: oklch(0.29 0.07 153);
}

.decision.manual {
  background: var(--warning-soft);
  color: oklch(0.29 0.07 70);
}

.decision-symbol {
  flex: none;
  font-weight: 850;
}

.decision strong {
  font-size: 0.82rem;
}

.decision p {
  margin: 2px 0 0;
  font-size: 0.75rem;
  line-height: 1.4;
}

.rubric-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rubric-item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 9px;
  background: var(--surface);
}

.rubric-rank {
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 750;
}

.rubric-item:first-child .rubric-rank {
  background: var(--primary);
  color: white;
}

.candidate .rubric-item:first-child .rubric-rank {
  background: var(--accent);
}

.rubric-path {
  min-width: 0;
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.rubric-confidence,
#type-confidence {
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  font-weight: 750;
}

.confidence-track {
  grid-column: 2 / 4;
  height: 3px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-strong);
}

.confidence-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
}

.candidate .confidence-fill {
  background: var(--accent);
}

.technical-details,
.request-details {
  margin: 12px 0 0;
}

.technical-details {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.technical-details dt,
.request-details dt {
  color: var(--muted);
  font-size: 0.7rem;
}

.technical-details dd,
.request-details dd {
  margin: 2px 0 0;
  overflow: hidden;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.7rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.shared-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.field-label {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.75rem;
}

.type-confidence {
  display: flex;
  align-items: center;
  gap: 9px;
}

.action-badge.manual {
  background: var(--warning-soft);
  color: oklch(0.3 0.07 70);
}

.feedback {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.feedback-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.feedback-heading h3 {
  margin-bottom: 2px;
}

#feedback-status {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: right;
}

#feedback-status.saved {
  color: var(--success);
}

#feedback-status.error {
  color: var(--danger);
}

.verdict-options {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 0;
  border: 0;
}

.verdict-options legend {
  width: 100%;
  margin-bottom: 7px;
  font-size: 0.82rem;
  font-weight: 700;
}

.verdict-options label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  cursor: pointer;
  font-size: 0.78rem;
}

.verdict-options label:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: oklch(0.29 0.07 235);
}

.verdict-options input,
.store-text input {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}

.feedback-fields {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 10px;
  margin-top: 12px;
}

.feedback-fields textarea {
  min-height: 82px;
}

.store-text {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 46ch;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
}

.store-text input {
  margin-top: 3px;
}

#feedback-button {
  flex: none;
  background: var(--accent);
  font-size: 0.82rem;
}

#feedback-button:hover:not(:disabled) {
  background: oklch(0.46 0.15 235);
}

.request-details {
  display: flex;
  gap: 28px;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1640px;
  margin: 0 auto;
  padding: 16px 32px 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

footer p {
  margin: 0;
}

footer a {
  color: var(--accent);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

@media (max-width: 1180px) {
  .workspace {
    display: block;
  }

  .composer {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  textarea {
    min-height: 240px;
  }
}

@media (max-width: 720px) {
  .model-grid,
  .feedback-fields {
    grid-template-columns: 1fr;
  }

  .topbar,
  .composer-footer,
  .feedback-footer,
  .shared-result,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .composer-footer,
  #submit-button,
  #feedback-button {
    width: 100%;
  }

  .model-result.safe-candidate {
    grid-column: auto;
  }

  .experiment-note {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}

@media (max-width: 520px) {
  .topbar,
  .composer,
  .results,
  footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .results-title,
  .feedback-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  #feedback-status {
    text-align: left;
  }

  .rubric-item {
    grid-template-columns: 24px minmax(0, 1fr);
  }

  .rubric-confidence,
  .confidence-track {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}