* {
  box-sizing: border-box;
}

:root {
  color-scheme: light dark;
  --ink: #242321;
  --muted: #716e68;
  --canvas: #f7f6f3;
  --paper: #ffffff;
  --surface: #efeeeb;
  --line: #dedcd7;
  --blue: #1769aa;
  --blue-strong: #0d568f;
  --blue-soft: #e5f2fc;
  --green: #28734b;
  --green-soft: #e8f1ec;
  --orange: #9a551a;
  --orange-soft: #fff0e1;
  --red: #b43e33;
  --red-soft: #fce9e7;
  --shadow: 0 1px 2px rgba(35, 34, 32, 0.05), 0 8px 24px rgba(35, 34, 32, 0.05);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.5 Arial, Helvetica, sans-serif;
  text-rendering: optimizeLegibility;
}

button,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 8px;
  left: -999px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}

.skip-link:focus {
  left: 8px;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  height: 76px;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--canvas) 92%, transparent);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 14px;
  letter-spacing: 0.13em;
}

.brand small {
  margin-top: 1px;
  color: var(--muted);
  font-size: 12px;
}

.brand-mark {
  position: relative;
  display: block;
  width: 38px;
  height: 38px;
  border: 2px solid var(--ink);
}

.brand-mark::before,
.brand-mark::after,
.brand-mark span {
  position: absolute;
  content: "";
  background: var(--ink);
}

.brand-mark::before {
  top: 9px;
  left: 8px;
  width: 18px;
  height: 2px;
}

.brand-mark::after {
  top: 17px;
  left: 8px;
  width: 13px;
  height: 2px;
}

.brand-mark span {
  top: 25px;
  left: 8px;
  width: 18px;
  height: 2px;
}

.runtime {
  display: flex;
  min-height: 36px;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--muted);
  font-size: 13px;
}

.runtime-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.runtime.live .runtime-dot {
  background: var(--green);
}

.hero {
  display: grid;
  width: min(1180px, 100%);
  min-height: 590px;
  margin: 0 auto;
  padding: 72px 24px;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.68fr);
  align-items: center;
  gap: 64px;
}

.kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.hero h1 {
  max-width: 800px;
  margin: 0;
  font: 700 clamp(42px, 5.7vw, 72px)/1.02 Georgia, "Times New Roman", serif;
  letter-spacing: -0.045em;
}

.hero h1 em {
  color: var(--blue);
  font-style: normal;
}

.lede {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}

.retention {
  color: var(--muted);
  font-size: 13px;
}

.button,
.icon-button,
.steps button,
.inspect-button {
  min-height: 44px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  cursor: pointer;
}

.button:hover,
.icon-button:hover,
.steps button:hover,
.inspect-button:hover {
  border-color: color-mix(in srgb, var(--blue) 55%, var(--line));
}

.button.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #ffffff;
  font-weight: 700;
}

.button.primary:hover {
  border-color: var(--blue-strong);
  background: var(--blue-strong);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

button:focus-visible,
a:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--blue) 70%, transparent);
  outline-offset: 3px;
}

.proof-card {
  border: 1px solid var(--line);
  border-top: 4px solid var(--blue);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.proof-label {
  display: flex;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.proof-card ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.proof-card li {
  display: grid;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 34px 1fr;
  gap: 10px;
}

.proof-card li:last-child {
  border-bottom: 0;
}

.proof-card li > span {
  color: var(--blue);
  font: 700 13px/1.5 Consolas, "Courier New", monospace;
}

.proof-card strong,
.proof-card small {
  display: block;
}

.proof-card strong {
  font-size: 15px;
}

.proof-card small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.workspace {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 40px 24px 96px;
}

.workspace-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.workspace h2,
.workspace h3,
.detail-panel h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
}

.workspace h2 {
  font-size: 32px;
  letter-spacing: -0.025em;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 13px;
}

.icon-button {
  min-height: 36px;
  padding: 6px 10px;
  color: var(--red);
  font-size: 13px;
}

.steps {
  display: grid;
  margin-bottom: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.steps button {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  color: var(--muted);
  text-align: left;
}

.steps button span {
  font: 700 12px/1 Consolas, "Courier New", monospace;
}

.steps button.active {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue-strong);
  font-weight: 700;
}

.status-banner {
  min-height: 52px;
  margin-bottom: 16px;
  padding: 14px 16px;
  border-left: 4px solid var(--blue);
  background: var(--blue-soft);
}

.status-banner.warning {
  border-color: var(--orange);
  background: var(--orange-soft);
}

.status-banner.success {
  border-color: var(--green);
  background: var(--green-soft);
}

.status-banner.error {
  border-color: var(--red);
  background: var(--red-soft);
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 16px;
}

.panel,
.integration-strip {
  border: 1px solid var(--line);
  background: var(--paper);
}

.panel {
  min-height: 520px;
  padding: 24px;
}

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.panel-heading h3,
.integration-strip h3 {
  font-size: 27px;
}

.scope-chip,
.state-chip,
.provider-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.scope-chip {
  background: var(--surface);
  color: var(--muted);
}

.cue-card {
  display: grid;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  grid-template-columns: 94px minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
}

.cue-card.selected {
  position: relative;
}

.cue-card.selected::before {
  position: absolute;
  top: 17px;
  bottom: 17px;
  left: -24px;
  width: 3px;
  content: "";
  background: var(--blue);
}

.timecode {
  padding-top: 8px;
  color: var(--muted);
  font: 13px/1.35 Consolas, "Courier New", monospace;
}

.cue-body label {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.cue-body textarea {
  width: 100%;
  min-height: 66px;
  resize: vertical;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  color: var(--ink);
  line-height: 1.45;
}

.cue-body textarea:not([readonly]):hover {
  border-color: var(--line);
}

.cue-body textarea:not([readonly]):focus {
  border-color: var(--blue);
  background: var(--paper);
}

.cue-body textarea[readonly] {
  cursor: default;
  resize: none;
}

.cue-note {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.cue-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.state-chip.current {
  background: var(--green-soft);
  color: var(--green);
}

.state-chip.stale {
  background: var(--orange-soft);
  color: var(--orange);
}

.state-chip.quote {
  background: var(--surface);
  color: var(--muted);
}

.inspect-button {
  min-height: 34px;
  padding: 5px 9px;
  color: var(--blue);
  font-size: 12px;
}

.detail-panel {
  background: color-mix(in srgb, var(--paper) 93%, var(--blue-soft));
}

.detail-panel h2 {
  margin-bottom: 14px;
  font-size: 30px;
  line-height: 1.2;
}

.detail-panel p {
  color: var(--muted);
}

.detail-panel strong {
  color: var(--ink);
}

.detail-card,
.source-card,
.impact-row {
  margin: 12px 0;
  padding: 15px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.detail-card p,
.source-card p {
  margin: 7px 0 0;
  color: var(--ink);
}

.detail-card small,
.source-card small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
}

.source-card a {
  display: inline-block;
  max-width: 100%;
  margin-top: 8px;
  overflow: hidden;
  color: var(--blue);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.impact-row {
  border-left: 4px solid var(--orange);
  background: var(--orange-soft);
}

.impact-row.current {
  border-left-color: var(--green);
  background: var(--green-soft);
}

.impact-row strong,
.impact-row span {
  display: block;
}

.impact-row span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.boundary-note {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.integration-strip {
  display: grid;
  margin-top: 16px;
  padding: 20px 24px;
  grid-template-columns: 220px 1fr;
  gap: 24px;
}

.integration-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.integration-card {
  display: grid;
  min-height: 74px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--paper);
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 8px;
}

.integration-card strong,
.integration-card small {
  display: block;
}

.integration-card small {
  margin-top: 4px;
  color: var(--muted);
}

.provider-badge.called {
  background: var(--green-soft);
  color: var(--green);
}

.provider-badge.waiting {
  background: var(--surface);
  color: var(--muted);
}

dialog {
  width: min(480px, calc(100% - 32px));
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.2);
}

dialog::backdrop {
  background: rgba(15, 17, 20, 0.55);
  backdrop-filter: blur(2px);
}

dialog h2 {
  margin: 0;
  font: 700 30px/1.2 Georgia, "Times New Roman", serif;
}

dialog p:not(.kicker) {
  color: var(--muted);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 24px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px max(24px, calc((100vw - 1180px) / 2));
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.noscript {
  margin: 24px;
  padding: 16px;
  border: 1px solid var(--red);
  background: var(--red-soft);
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    padding-top: 56px;
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .proof-card {
    max-width: 680px;
  }

  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .panel {
    min-height: 0;
  }

  .integration-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-header {
    height: 68px;
    padding: 0 16px;
  }

  .brand small {
    display: none;
  }

  .runtime {
    max-width: 150px;
  }

  .hero {
    padding: 44px 18px 56px;
  }

  .hero h1 {
    font-size: clamp(39px, 12vw, 52px);
  }

  .hero-actions,
  .workspace-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .workspace {
    padding: 32px 16px 72px;
  }

  .workspace-header {
    gap: 12px;
  }

  .steps {
    gap: 5px;
  }

  .steps button {
    min-height: 48px;
    padding: 7px 6px;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    text-align: center;
  }

  .panel {
    padding: 18px;
  }

  .cue-card {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .cue-card.selected::before {
    left: -18px;
  }

  .cue-actions {
    grid-column: 2;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .integration-strip {
    padding: 18px;
  }

  .integration-cards {
    grid-template-columns: 1fr;
  }

  .site-footer {
    padding: 24px 18px;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ffffff;
    --muted: rgba(255, 255, 255, 0.68);
    --canvas: #191919;
    --paper: #202020;
    --surface: #383836;
    --line: rgba(255, 255, 255, 0.2);
    --blue: #75b8f1;
    --blue-strong: #5e9fe8;
    --blue-soft: #19314a;
    --green: #72bc8f;
    --green-soft: #1d382b;
    --orange: #dea064;
    --orange-soft: #3a2819;
    --red: #ef8378;
    --red-soft: #41211e;
    --shadow: none;
  }

  .button.primary {
    color: #101820;
  }

  .site-header {
    background: rgba(25, 25, 25, 0.92);
  }
}