/*
 * Blendex AI Assistant — canonical tokens + shell styles (Reliability integration).
 * Source: Blendex Visualization System src/ui-theme.css + src/ai-assistant/ai-assistant.css
 * Canonical component styling only; tools must not restyle the shell.
 */

:root {
  --ui-brand-primary: #6e7cf6;
  --ui-brand-hover: #5d6be6;
  --ui-brand-active: #515fce;
  --ui-brand-soft: #eef0ff;
  --ui-brand-soft-strong: #dfe3ff;
  --ui-brand-on-dark: #9ca6ff;
  --ui-brand-foreground: #ffffff;
}

:root {
  --workspace-ai-width: 380px;
  --workspace-ai-width-max: 420px;
  --workspace-ai-radius: 16px;
  --workspace-ai-header-height: auto;

  --workspace-ai-bg: #ffffff;
  --workspace-ai-border: #ececf0;
  --workspace-ai-border-strong: #dedee5;
  --workspace-ai-border-strong-hover: #d3d3da;
  --workspace-ai-text: #33353d;
  --workspace-ai-text-secondary: #60636d;
  --workspace-ai-text-muted: #989aa3;

  --workspace-ai-prompt-bg: #fafafb;
  --workspace-ai-prompt-bg-hover: #f3f3f5;

  --workspace-ai-brand: var(--ui-brand-primary);
  --workspace-ai-brand-hover: var(--ui-brand-hover);
  --workspace-ai-brand-soft: var(--ui-brand-soft);
  --workspace-ai-brand-focus: #a9a4ff;
  --workspace-ai-brand-focus-ring: rgba(91, 84, 232, 0.1);

  --workspace-ai-user-bg: #f3f2ff;
  --workspace-ai-user-border: #ebe9ff;

  --workspace-ai-warning-bg: #fffaf5;
  --workspace-ai-warning-border: #f0dcc9;
  --workspace-ai-warning-text: #a16207;

  --workspace-ai-danger-bg: #fff7f7;
  --workspace-ai-danger-border: #f2dede;
  --workspace-ai-danger-text: #8f4545;
  --workspace-ai-danger-muted: #9a6464;

  --workspace-ai-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.12);
}

/*
 * Blendex AI Assistant — canonical shell styles.
 *
 * Tokens live in src/ui-theme.css (--workspace-ai-*). These rules are the
 * only place AI-specific presentation values may appear; tools must not
 * restyle the shell.
 */

/* ── Panel ─────────────────────────────────────────────────────────────── */

.workspace-ai {
  position: fixed;
  top: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 60;
  width: min(
    var(--workspace-ai-width, 380px),
    var(--workspace-ai-width-max, 420px),
    calc(100vw - 32px)
  );
  display: flex;
  flex-direction: column;
  background: var(--workspace-ai-bg, #ffffff);
  border: 1px solid var(--workspace-ai-border, #ececf0);
  border-radius: var(--workspace-ai-radius, 16px);
  box-shadow: var(--workspace-ai-shadow, 0 20px 40px -15px rgba(0, 0, 0, 0.12));
  overflow: hidden;
  color: var(--workspace-ai-text, #33353d);
  font-size: 13px;
  line-height: 1.5;
}

/*
 * Integration-layer fix: .workspace-ai sets display:flex, which overrides the
 * UA [hidden] { display:none } default. Keep the closed panel actually hidden.
 * Canonical shell styles are not modified.
 */
.workspace-ai[hidden] {
  display: none;
}

.workspace-ai[data-open="true"] {
  animation: workspace-ai-enter 0.18s ease-out;
}

@keyframes workspace-ai-enter {
  from { opacity: 0; transform: translateX(8px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ── Header ────────────────────────────────────────────────────────────── */

.workspace-ai__header {
  flex: 0 0 auto;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px;
  background: var(--workspace-ai-bg, #ffffff);
  border-bottom: 1px solid var(--workspace-ai-border, #ececf0);
}

.workspace-ai__identity {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.workspace-ai__mark {
  color: var(--workspace-ai-brand, #5b54e8);
  font-size: 15px;
  line-height: 1;
}

.workspace-ai__title {
  font-size: 13px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--workspace-ai-text, #33353d);
  white-space: nowrap;
}

.workspace-ai__header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.workspace-ai__tool-context {
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.06em;
  color: var(--workspace-ai-text-muted, #989aa3);
}

.workspace-ai__close {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--workspace-ai-text-muted, #9698a0);
  display: grid;
  place-items: center;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.workspace-ai__close:hover {
  background: var(--workspace-ai-prompt-bg-hover, #f5f5f6);
  color: var(--workspace-ai-text, #44464d);
}

.workspace-ai__close:focus-visible,
.workspace-ai__prompt:focus-visible,
.workspace-ai-error__retry:focus-visible,
.workspace-ai__send:focus-visible,
.workspace-header-action:focus-visible {
  outline: 2px solid var(--workspace-ai-brand, #5b54e8);
  outline-offset: 1px;
}

/* ── Conversation ──────────────────────────────────────────────────────── */

.workspace-ai__conversation {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 22px 18px 20px;
  scroll-behavior: smooth;
}

/* Welcome */

.workspace-ai__welcome {
  padding: 1px 2px;
}

.workspace-ai__welcome-title {
  font-size: 14px;
  margin: 0 0 6px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--workspace-ai-text, #33353d);
}

.workspace-ai__welcome-copy {
  font-size: 12px;
  line-height: 1.6;
  color: var(--workspace-ai-text-secondary, #777a84);
  margin: 0 0 20px;
}

.workspace-ai__empty-context {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--workspace-ai-prompt-bg, #fafafb);
  color: var(--workspace-ai-text-secondary, #62656f);
  font-size: 11px;
  line-height: 1.55;
}

.workspace-ai__empty-context strong {
  font-weight: 600;
  color: var(--workspace-ai-text, #444653);
}

/* Suggested Prompts */

.workspace-ai__prompts {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.workspace-ai__prompt {
  width: 100%;
  border: 0;
  border-radius: 12px;
  background: var(--workspace-ai-prompt-bg, #fafafb);
  padding: 12px 14px;
  text-align: left;
  color: var(--workspace-ai-text-secondary, #62656f);
  font-size: 12px;
  line-height: 1.35;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.workspace-ai__prompt:hover {
  background: var(--workspace-ai-prompt-bg-hover, #f3f3f5);
  color: var(--workspace-ai-text, #30323a);
  transform: translateY(-1px);
}

/* Messages */

.workspace-ai-message {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  line-height: 1.62;
}

.workspace-ai-message[data-role="user"] {
  align-items: flex-end;
}

.workspace-ai-message__bubble {
  max-width: 88%;
  background: var(--workspace-ai-user-bg, #f3f2ff);
  border: 1px solid var(--workspace-ai-user-border, #ebe9ff);
  color: var(--workspace-ai-text, #444653);
  padding: 10px 12px;
  border-radius: 12px 12px 4px 12px;
  overflow-wrap: anywhere;
}

.workspace-ai-message__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--workspace-ai-text-muted, #9a9ca5);
}

.workspace-ai-message__body {
  color: var(--workspace-ai-text-secondary, #4d5059);
  overflow-wrap: anywhere;
}

.workspace-ai-message__body > p {
  margin: 0 0 9px;
}

.workspace-ai-message__body > p:last-child {
  margin-bottom: 0;
}

.workspace-ai-message__system {
  background: var(--workspace-ai-prompt-bg, #fafafb);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--workspace-ai-text-secondary, #62656f);
  font-size: 11px;
  line-height: 1.55;
}

/* Structured insight blocks */

.workspace-ai-insight {
  margin-top: 10px;
  border: 1px solid var(--workspace-ai-border, #ececf0);
  border-radius: 10px;
  overflow: hidden;
  background: #ffffff;
}

.workspace-ai-insight__label {
  font-size: 9px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--workspace-ai-text-muted, #9a9ca4);
  margin: 0;
  padding: 10px 11px 0;
  font-weight: 700;
}

.workspace-ai-insight__text {
  font-size: 11px;
  color: var(--workspace-ai-text-secondary, #555861);
  line-height: 1.5;
  margin: 3px 11px 10px;
}

.workspace-ai-insight[data-kind="warning"] {
  border-color: var(--workspace-ai-warning-border, #f0dcc9);
  background: var(--workspace-ai-warning-bg, #fffaf5);
}

.workspace-ai-insight[data-kind="warning"] .workspace-ai-insight__label {
  color: var(--workspace-ai-warning-text, #a16207);
}

/* Evidence */

.workspace-ai-evidence {
  background: var(--workspace-ai-prompt-bg, #fafafb);
  border-color: transparent;
}

.workspace-ai-evidence__list {
  margin: 8px 11px 11px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.workspace-ai-evidence__row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 10px;
  line-height: 1.55;
}

.workspace-ai-evidence__row dt {
  color: var(--workspace-ai-text-secondary, #757883);
}

.workspace-ai-evidence__row dd {
  margin: 0;
  font-weight: 650;
  color: var(--workspace-ai-text, #565962);
}

/* Loading */

.workspace-ai-loading-row[data-pending="true"] .workspace-ai-message__meta {
  color: var(--workspace-ai-text-muted, #9a9ca5);
}

.workspace-ai-loading {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--workspace-ai-text-secondary, #858892);
  font-size: 11px;
  padding: 3px 0;
}

.workspace-ai-loading__dots {
  display: flex;
  gap: 3px;
}

.workspace-ai-loading__dots i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--workspace-ai-text-muted, #aaaab2);
  animation: workspace-ai-bounce 1s infinite ease-in-out;
}

.workspace-ai-loading__dots i:nth-child(2) { animation-delay: 0.12s; }
.workspace-ai-loading__dots i:nth-child(3) { animation-delay: 0.24s; }

@keyframes workspace-ai-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-3px); opacity: 1; }
}

/* Error */

.workspace-ai-error {
  border: 1px solid var(--workspace-ai-danger-border, #f2dede);
  background: var(--workspace-ai-danger-bg, #fff7f7);
  border-radius: 10px;
  padding: 11px 12px;
}

.workspace-ai-error__title {
  font-size: 11px;
  font-weight: 650;
  color: var(--workspace-ai-danger-text, #8f4545);
  margin: 0 0 4px;
}

.workspace-ai-error__text {
  font-size: 10px;
  color: var(--workspace-ai-danger-muted, #9a6464);
  line-height: 1.45;
  margin: 0;
}

.workspace-ai-error__retry {
  margin-top: 8px;
  border: 1px solid var(--workspace-ai-danger-border, #efd3d3);
  background: #ffffff;
  color: var(--workspace-ai-danger-text, #8b5151);
  border-radius: 7px;
  padding: 6px 9px;
  font-size: 10px;
  cursor: pointer;
}

.workspace-ai-error__retry:hover {
  background: var(--workspace-ai-danger-bg, #fff7f7);
}

/* ── Composer ──────────────────────────────────────────────────────────── */

.workspace-ai__composer-shell {
  flex: 0 0 auto;
  background: var(--workspace-ai-bg, #ffffff);
  padding: 10px 18px 14px;
  border-top: 1px solid rgba(236, 236, 240, 0.7);
}

.workspace-ai__composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.workspace-ai__input {
  flex: 1 1 auto;
  min-height: 44px;
  max-height: 110px;
  resize: none;
  border: 1px solid var(--workspace-ai-border-strong, #dedee5);
  background: var(--workspace-ai-prompt-bg, #fafafb);
  color: var(--workspace-ai-text, #34363e);
  border-radius: 12px;
  padding: 12px 13px 11px;
  outline: none;
  font: inherit;
  font-size: 12px;
  line-height: 1.45;
  overflow-y: auto;
  transition: background 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.workspace-ai__input::placeholder {
  color: var(--workspace-ai-text-muted, #9a9ca5);
}

.workspace-ai__input:focus {
  background: #ffffff;
  border-color: var(--workspace-ai-brand-focus, #a9a4ff);
  box-shadow: 0 0 0 3px var(--workspace-ai-brand-focus-ring, rgba(91, 84, 232, 0.10));
}

.workspace-ai__send {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 9px;
  background: var(--workspace-ai-brand, #5b54e8);
  color: #ffffff;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.16s ease;
}

.workspace-ai__send:hover:not(:disabled) {
  background: var(--workspace-ai-brand-hover, #4d46d6);
}

.workspace-ai__send:disabled {
  opacity: 0.35;
  cursor: default;
}

.workspace-ai__disclaimer {
  margin: 9px auto 0;
  max-width: 330px;
  text-align: center;
  color: var(--workspace-ai-text-muted, #a3a5ad);
  font-size: 9.5px;
  line-height: 1.35;
}

/* Live region (visually hidden) */

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

/* ── Header AI entry ───────────────────────────────────────────────────── */

.workspace-header-action {
  height: 34px;
  min-width: 76px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 12px;
  border: 1px solid var(--workspace-ai-border-strong, #dedee5);
  border-radius: 8px;
  background: #ffffff;
  color: var(--workspace-ai-text, #494c55);
  font-size: 12px;
  font-weight: 560;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.workspace-header-action:hover {
  background: var(--workspace-ai-prompt-bg-hover, #fafafa);
  border-color: var(--workspace-ai-border-strong-hover, #d3d3da);
}

.workspace-header-action[aria-expanded="true"] {
  background: var(--workspace-ai-brand-soft, #f1f0ff);
  border-color: var(--workspace-ai-brand-focus, #a9a4ff);
  color: var(--workspace-ai-brand-hover, #4d46d6);
}

/* ── Mobile / responsive ───────────────────────────────────────────────── */

@media (max-width: 720px) {
  .workspace-ai {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    height: 100dvh;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  .workspace-ai__header {
    min-height: calc(58px + env(safe-area-inset-top));
    padding-top: 0;
  }

  .workspace-ai__composer-shell {
    padding-bottom: calc(14px + env(safe-area-inset-bottom));
  }

  .workspace-ai__prompt {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .workspace-ai,
  .workspace-ai__close,
  .workspace-ai__prompt,
  .workspace-ai__input,
  .workspace-ai__send,
  .workspace-header-action {
    animation: none !important;
    transition: none !important;
  }

  .workspace-ai__conversation {
    scroll-behavior: auto;
  }

  .workspace-ai-loading__dots i {
    animation: none;
    opacity: 0.6;
  }
}