:root {
  color-scheme: light;
  --rules-ink: #23272a;
  --rules-muted: #5b635c;
  --rules-faint: #8b938b;
  --rules-line: #e3e1d6;
  --rules-line-soft: #eeece2;
  --rules-paper: #f2f0e8;
  --rules-panel: #fffefb;
  --rules-forest: #28473a;
  --rules-forest-deep: #1f3a2f;
  --rules-forest-soft: #e9efe9;
  --rules-clay: #9c4a2f;
  --rules-clay-soft: #f3ece3;
  --rules-content: 880px;
  --rules-mark-size: 44px;
  --rules-radius: 10px;
  --rules-radius-sm: 8px;
  --rules-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino,
    Georgia, Cambria, "Times New Roman", serif;
  --rules-shadow-sm: 0 1px 2px rgba(31, 40, 33, 0.05);
  --rules-shadow: 0 1px 2px rgba(31, 40, 33, 0.05), 0 10px 26px rgba(31, 40, 33, 0.05);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body.rules-page {
  margin: 0;
  color: var(--rules-ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.5;
  background: var(--rules-paper);
  -webkit-font-smoothing: antialiased;
}

button,
textarea,
input {
  font: inherit;
}

.rules-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

kbd {
  display: inline-block;
  min-width: 1.1em;
  padding: 1px 5px;
  border: 1px solid var(--rules-line);
  border-radius: 5px;
  background: var(--rules-panel);
  color: var(--rules-muted);
  font-family: inherit;
  font-size: 0.76em;
  font-weight: 600;
  line-height: 1.4;
}

/* ---------- App shell ---------- */
.rules-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

.rules-header-inner,
.rules-thread,
.rules-dock-inner,
.rules-footer {
  width: min(var(--rules-content), 100%);
  margin-inline: auto;
}

/* ---------- Header ---------- */
.rules-header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid var(--rules-line);
  background: rgba(242, 240, 232, 0.9);
  backdrop-filter: blur(10px);
}

.rules-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
}

.rules-brand {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 14px;
}

.rules-brand-text {
  min-width: 0;
}

.rules-mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: var(--rules-mark-size);
  height: var(--rules-mark-size);
  border-radius: 11px;
}

.rules-mark img {
  width: var(--rules-mark-size);
  height: var(--rules-mark-size);
  display: block;
}

.rules-eyebrow {
  margin: 0 0 3px;
  color: var(--rules-faint);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.rules-header h1 {
  margin: 0;
  font-family: var(--rules-serif);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--rules-forest-deep);
}

.rules-subtitle {
  margin: 7px 0 0;
  max-width: 56ch;
  color: var(--rules-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.rules-source-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 2px;
  padding: 7px 13px;
  border: 1px solid var(--rules-line);
  border-radius: var(--rules-radius-sm);
  background: var(--rules-panel);
  color: var(--rules-forest);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.rules-source-link svg {
  width: 15px;
  height: 15px;
}

.rules-source-link:hover {
  background: var(--rules-forest-soft);
  border-color: var(--rules-forest);
}

.rules-source-link:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 2px;
}

/* ---------- Status bar (aligned to the title text, not the logo) ---------- */
.rules-statusbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 7px;
  font-size: 0.83rem;
  color: var(--rules-muted);
}

.rules-status-dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rules-faint);
}

.rules-status-dot[data-state="ok"] {
  background: #3f7d5f;
}

.rules-status-dot[data-state="warn"] {
  background: var(--rules-clay);
}

.rules-status-dot[data-state="busy"] {
  background: #b0883c;
}

.rules-status-headline {
  font-weight: 500;
  color: var(--rules-ink);
}

.rules-status-toggle {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  border: 0;
  padding: 0;
  background: none;
  color: var(--rules-forest);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.rules-status-toggle::before {
  content: "·";
  margin-right: 4px;
  color: var(--rules-faint);
  font-weight: 400;
}

.rules-status-chevron {
  width: 13px;
  height: 13px;
  transition: transform 0.18s ease;
}

.rules-status-toggle[aria-expanded="true"] .rules-status-chevron {
  transform: rotate(180deg);
}

.rules-status-toggle:hover span {
  text-decoration: underline;
}

.rules-status-toggle:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 1px;
}

.rules-status-source {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.rules-status-detail {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: 30;
  width: max-content;
  max-width: min(330px, 86vw);
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 15px 17px;
  border: 1px solid var(--rules-line);
  border-radius: 12px;
  background: var(--rules-panel);
  box-shadow: 0 1px 2px rgba(31, 40, 33, 0.05), 0 18px 40px rgba(31, 40, 33, 0.13);
}

.rules-status-detail::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 18px;
  width: 9px;
  height: 9px;
  background: var(--rules-panel);
  border-left: 1px solid var(--rules-line);
  border-top: 1px solid var(--rules-line);
  transform: rotate(45deg);
}

.rules-status-detail[hidden] {
  display: none;
}

.rules-status-detail div {
  min-width: 0;
}

.rules-status-detail dt {
  margin-bottom: 2px;
  color: var(--rules-faint);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.rules-status-detail dd {
  margin: 0;
  font-weight: 500;
  font-size: 0.89rem;
  overflow-wrap: anywhere;
}

.rules-status-note {
  grid-column: 1 / -1;
  margin: 2px 0 0;
  color: var(--rules-muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

/* ---------- Conversation ---------- */
.rules-conversation {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.rules-thread {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 26px 24px;
}

.rules-message {
  max-width: 100%;
  line-height: 1.62;
  animation: rules-fade 0.2s ease;
}

@keyframes rules-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.rules-message-user {
  align-self: flex-end;
  max-width: min(600px, 86%);
  padding: 12px 16px;
  border-radius: var(--rules-radius);
  background: var(--rules-forest);
  color: #fff;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.rules-message-bot {
  align-self: stretch;
  width: 100%;
  padding: 20px 22px;
  border: 1px solid var(--rules-line);
  border-radius: var(--rules-radius);
  background: var(--rules-panel);
  box-shadow: var(--rules-shadow);
}

/* ---------- Answer formatting ---------- */
.rules-answer > * {
  margin: 0;
}

.rules-answer > * + * {
  margin-top: 13px;
}

.rules-answer-lead {
  font-size: 1.03rem;
  line-height: 1.58;
  color: var(--rules-ink);
}

.rules-answer-tag,
.rules-callout-tag,
.rules-answer-subhead {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rules-answer-tag {
  display: block;
  margin-bottom: 4px;
  color: var(--rules-forest);
}

.rules-answer-subhead {
  color: var(--rules-faint);
}

.rules-answer-p {
  color: var(--rules-ink);
}

.rules-answer-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rules-answer-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.56;
}

.rules-answer-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--rules-forest);
  opacity: 0.55;
}

.rules-answer-list strong {
  font-weight: 600;
  color: var(--rules-forest-deep);
}

.rules-callout {
  padding: 12px 15px;
  border-left: 2px solid var(--rules-clay);
  border-radius: 0 var(--rules-radius-sm) var(--rules-radius-sm) 0;
  background: var(--rules-clay-soft);
}

.rules-callout-tag {
  display: block;
  margin-bottom: 4px;
  color: var(--rules-clay);
}

/* ---------- Inline sources ---------- */
.rules-sources {
  margin-top: 18px;
  border-top: 1px solid var(--rules-line-soft);
  padding-top: 14px;
}

.rules-sources summary {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  color: var(--rules-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 6px;
}

.rules-sources summary::-webkit-details-marker {
  display: none;
}

.rules-sources summary:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 3px;
}

.rules-sources-icon {
  width: 15px;
  height: 15px;
  color: var(--rules-faint);
}

.rules-sources-count {
  color: var(--rules-faint);
  font-weight: 600;
}

.rules-sources-chevron {
  width: 15px;
  height: 15px;
  margin-left: auto;
  color: var(--rules-faint);
  transition: transform 0.18s ease;
}

.rules-sources[open] .rules-sources-chevron {
  transform: rotate(180deg);
}

.rules-sources ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--rules-line);
  border-radius: var(--rules-radius-sm);
  overflow: hidden;
  background: var(--rules-line);
}

.rules-source-item {
  padding: 13px 15px;
  background: var(--rules-panel);
}

.rules-source-title {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  color: var(--rules-forest);
  font-weight: 600;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.rules-source-title:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.rules-source-title:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 2px;
  border-radius: 3px;
}

.rules-source-title::after {
  content: "↗";
  font-size: 0.8em;
  color: var(--rules-faint);
}

.rules-source-meta {
  margin-top: 4px;
  color: var(--rules-faint);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.rules-source-excerpt {
  margin-top: 7px;
  color: var(--rules-muted);
  font-size: 0.89rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

/* ---------- Typing indicator ---------- */
.rules-typing {
  display: inline-flex;
  gap: 5px;
  align-items: center;
  padding: 2px 0;
}

.rules-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--rules-forest);
  opacity: 0.35;
  animation: rules-fade-dot 1.3s ease-in-out infinite;
}

.rules-typing span:nth-child(2) {
  animation-delay: 0.2s;
}

.rules-typing span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes rules-fade-dot {
  0%,
  100% {
    opacity: 0.3;
  }
  40% {
    opacity: 0.85;
  }
}

/* ---------- Dock (starters + composer) ---------- */
.rules-dock {
  position: sticky;
  bottom: 0;
  border-top: 1px solid var(--rules-line);
  background: rgba(242, 240, 232, 0.92);
  backdrop-filter: blur(10px);
}

.rules-dock-inner {
  padding: 10px 24px 12px;
}

.rules-starters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 9px;
}

.rules-starters button {
  border: 1px solid var(--rules-line);
  border-radius: var(--rules-radius-sm);
  padding: 7px 12px;
  background: var(--rules-panel);
  color: var(--rules-forest);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.2;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.rules-starters button:hover {
  background: var(--rules-forest-soft);
  border-color: var(--rules-forest);
}

.rules-starters button:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 2px;
}

.rules-starters-toggle {
  display: none;
  margin: 0 0 11px;
  border: 0;
  padding: 2px 0;
  background: none;
  color: var(--rules-forest);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.rules-starters-toggle:hover {
  text-decoration: underline;
}

.rules-starters-toggle:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 2px;
  border-radius: 6px;
}

.rules-dock.has-conversation .rules-starters {
  display: none;
}

.rules-dock.has-conversation .rules-starters-toggle {
  display: inline-flex;
}

.rules-dock.has-conversation.starters-open .rules-starters {
  display: flex;
}

.rules-composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 7px;
  border: 1px solid var(--rules-line);
  border-radius: var(--rules-radius);
  background: var(--rules-panel);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.rules-composer:focus-within {
  border-color: var(--rules-forest);
  box-shadow: 0 0 0 3px rgba(40, 71, 58, 0.12);
}

.rules-composer textarea {
  flex: 1 1 auto;
  min-width: 0;
  height: 44px;
  min-height: 44px;
  max-height: 160px;
  resize: none;
  overflow-y: hidden;
  border: 0;
  padding: 10px 8px 10px 12px;
  background: transparent;
  color: var(--rules-ink);
  line-height: 1.45;
  outline: none;
}

.rules-composer textarea::placeholder {
  color: var(--rules-faint);
}

.rules-send {
  position: relative;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--rules-radius-sm);
  background: var(--rules-forest);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.rules-send:hover {
  background: var(--rules-forest-deep);
}

.rules-send:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 2px;
}

.rules-send:disabled {
  cursor: default;
  opacity: 0.6;
}

.rules-send-icon {
  width: 20px;
  height: 20px;
}

.rules-send-spinner {
  display: none;
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: rules-spin 0.7s linear infinite;
}

.rules-send.is-loading .rules-send-icon {
  visibility: hidden;
}

.rules-send.is-loading .rules-send-spinner {
  display: block;
}

@keyframes rules-spin {
  to {
    transform: rotate(360deg);
  }
}

.rules-hint {
  margin: 7px 2px 0;
  color: var(--rules-faint);
  font-size: 0.72rem;
  text-align: center;
}

/* ---------- Footer ---------- */
.rules-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px 18px;
  flex-wrap: wrap;
  padding: 8px 24px 28px;
  color: var(--rules-faint);
  font-size: 0.72rem;
  line-height: 1.4;
}

.rules-disclaimer {
  margin: 0;
  flex: 1 1 340px;
  min-width: 0;
}

.rules-disclaimer summary {
  display: none;
  align-items: center;
  gap: 6px;
  list-style: none;
  cursor: pointer;
}

.rules-disclaimer summary::-webkit-details-marker {
  display: none;
}

.rules-disclaimer summary::after {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
  opacity: 0.7;
}

.rules-disclaimer summary span {
  min-width: 0;
}

.rules-disclaimer[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 2px;
}

.rules-disclaimer p {
  margin: 0;
}

.rules-maker-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--rules-muted);
  font-size: 0.74rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.rules-maker-link img {
  width: 17px;
  height: 17px;
  display: block;
  opacity: 0.9;
}

.rules-maker-link:hover {
  color: var(--rules-forest);
}

.rules-maker-link:focus-visible {
  outline: 2px solid var(--rules-forest);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .rules-app {
    height: 100svh;
  }

  .rules-header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-block: 12px;
  }

  .rules-source-link {
    align-self: flex-start;
    padding-block: 6px;
  }

  .rules-header h1 {
    font-size: 1.4rem;
  }

  .rules-subtitle {
    display: none;
  }

  .rules-header-inner,
  .rules-status-detail,
  .rules-thread,
  .rules-dock-inner,
  .rules-footer {
    padding-inline: 16px;
  }

  .rules-thread {
    gap: 12px;
    padding-block: 16px;
  }

  .rules-message-bot {
    padding: 16px 17px;
  }

  .rules-dock {
    flex: 0 0 auto;
    max-height: 56svh;
    overflow-y: auto;
  }

  .rules-dock-inner {
    padding-block: 8px;
  }

  .rules-dock.has-conversation .rules-dock-inner {
    display: flex;
    flex-direction: column;
  }

  .rules-dock.has-conversation .rules-composer {
    order: 1;
  }

  .rules-dock.has-conversation .rules-starters-toggle {
    order: 2;
    margin: 8px 0 0;
  }

  .rules-dock.has-conversation .rules-starters {
    order: 3;
    margin: 8px 0 0;
  }

  .rules-starters {
    max-height: 150px;
    overflow-y: auto;
    padding-right: 2px;
  }

  .rules-dock.is-composing .rules-starters,
  .rules-dock.is-composing .rules-starters-toggle,
  .rules-dock.is-composing + .rules-footer,
  .rules-hint {
    display: none;
  }

  .rules-composer textarea {
    max-height: 104px;
  }

  .rules-footer {
    flex-wrap: nowrap;
    gap: 6px;
    padding-block: 6px calc(7px + env(safe-area-inset-bottom, 0px));
    font-size: 0.68rem;
  }

  .rules-disclaimer {
    flex: 1 1 auto;
    min-width: 0;
  }

  .rules-disclaimer summary {
    display: flex;
    max-width: 100%;
    white-space: nowrap;
  }

  .rules-disclaimer summary span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .rules-maker-link {
    flex: 0 0 auto;
  }

  .rules-disclaimer:not([open]) p {
    display: none;
  }

  .rules-status-source {
    position: static;
  }

  .rules-status-detail {
    left: 16px;
    right: 16px;
    width: auto;
    max-width: none;
  }

  .rules-status-detail::before {
    display: none;
  }
}

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

  .rules-message,
  .rules-typing span,
  .rules-send-spinner,
  .rules-sources-chevron,
  .rules-source-link,
  .rules-starters button,
  .rules-send {
    animation: none !important;
    transition: none !important;
  }
}