/* ===========================================================================
   Seadusloome — AI Advisory Chat Stylesheet
   Depends on tokens.css (CSS variables) and ui.css (base reset + utilities).
   NAV_HEIGHT = --topbar-height (64px) + --sidebar stays in the app-shell
   layout; the chat column itself fills the main-content flex slot.
   =========================================================================== */

/* ===========================================================================
   Visually-hidden utility
   Note: ui.css defines .sr-only; we define .visually-hidden as a synonym
   so templates may use either. If .sr-only is already present that is fine —
   both definitions are identical and spec-conformant.
   =========================================================================== */

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

/* ===========================================================================
   Layout: chat-container + sub-regions
   =========================================================================== */

/* Outermost wrapper — fills the main-content flex slot */
.chat-container {
  display: flex;
  flex-direction: column;
  /* max-height (not min-height) prevents iOS overflow when dvh + safe-area
     stacks taller than the visible screen. Flex layout pins the input bar. */
  max-height: 100dvh;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

/* Scrollable message area — takes all available vertical space */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  scroll-behavior: smooth;
  /* Reserve a little breathing room around messages */
  padding: var(--space-6) var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Input bar — pinned to the bottom by flex layout; no sticky needed */
.chat-input-area {
  /* position: sticky removed — the container is already a flex column and the
     input area naturally stays at the bottom. sticky has no effect here because
     there is no scrolling ancestor at this level. */
  /* Safe-area-inset accounts for iOS home indicator / Android nav bar */
  padding: var(--space-3) var(--space-4) calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
  z-index: var(--z-sticky);
  /* Contain the palette popover */
  position: relative;
}

/* Textarea inside the input bar */
.chat-input {
  flex: 1;
  font-family: var(--font-family);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  /* Disable manual resize handle — height grows via JS field-sizing API */
  resize: none;
  /* Prevent textarea from overflowing into a gigantic block */
  max-height: 200px;
  overflow-y: auto;
  transition: border-color var(--transition-fast);
  /* CSS field-sizing (Chrome 123+) makes the textarea auto-grow natively */
  field-sizing: content;
}

.chat-input:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

.chat-input::placeholder {
  color: var(--color-text-muted);
}

/* ===========================================================================
   Message bubbles
   =========================================================================== */

/* Full-width row — role modifiers control alignment */
.chat-message {
  display: flex;
  flex-direction: column;
  max-width: 100%;
  /* Mild animation so new messages slide in gently */
  animation: chat-msg-appear 0.18s ease both;
}

@keyframes chat-msg-appear {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Shared bubble baseline */
.chat-bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  line-height: 1.55;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* ---- User messages — right-aligned, brand tint ---- */

.chat-message-user {
  align-items: flex-end;
}

.chat-message-user .chat-bubble,
/* Legacy class names already in routes.py JavaScript */
.chat-bubble-user {
  background-color: var(--color-primary-subtle);
  color: var(--color-text);
  border: 1px solid transparent;
  /* Heavy radius on bottom-right, lighter on bottom-left (tail indication) */
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-sm) var(--radius-lg);
  max-width: 78%;
  text-align: left;
}

/* ---- Assistant messages — left-aligned, surface card ---- */

.chat-message-assistant {
  align-items: flex-start;
}

.chat-message-assistant .chat-bubble,
.chat-bubble-assistant {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  /* Heavy radius on bottom-left */
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
  max-width: 88%;
}

/* ---- Tool activity messages — centered, monospace pill ---- */

.chat-message-tool {
  align-items: center;
}

.chat-message-tool .chat-bubble,
.chat-bubble-tool {
  background-color: var(--color-background);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  max-width: 90%;
}

.chat-tool-label {
  margin: 0;
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ---- Error messages — red-tinted ---- */

.chat-message-error {
  align-items: flex-start;
}

.chat-message-error .chat-bubble,
.chat-bubble-error {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
  max-width: 88%;
}

/* ===========================================================================
   Markdown typography inside .chat-message-text
   =========================================================================== */

.chat-message-text {
  line-height: 1.55;
}

/* Paragraphs — reset the browser default bottom margin to a controlled value */
.chat-message-text p {
  margin-block: 0.5em;
}

.chat-message-text p:first-child {
  margin-block-start: 0;
}

.chat-message-text p:last-child {
  margin-block-end: 0;
}

/* Headings inside chat — use a modest size hierarchy */
.chat-message-text h1 {
  font-size: var(--text-2xl);
  margin-block: 0.75em 0.35em;
}

.chat-message-text h2 {
  font-size: var(--text-xl);
  margin-block: 0.7em 0.3em;
}

.chat-message-text h3 {
  font-size: var(--text-lg);
  margin-block: 0.65em 0.25em;
}

.chat-message-text h4 {
  font-size: var(--text-base);
  margin-block: 0.6em 0.2em;
}

/* Inline code */
.chat-message-text code {
  font-family: var(--font-family-mono);
  font-size: 0.88em;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.35em;
}

/* Code blocks */
.chat-message-text pre {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  overflow-x: auto;
  margin-block: var(--space-3);
}

.chat-message-text pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* Blockquotes */
.chat-message-text blockquote {
  border-left: 3px solid var(--color-primary);
  margin: var(--space-3) 0;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-muted);
  background-color: var(--color-background);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Lists */
.chat-message-text ul,
.chat-message-text ol {
  padding-inline-start: var(--space-6);
  margin-block: var(--space-2);
}

.chat-message-text li {
  margin-block: var(--space-1);
}

/* Tables */
.chat-message-text table {
  border-collapse: collapse;
  width: 100%;
  font-size: var(--text-sm);
  margin-block: var(--space-4);
  overflow-x: auto;
  display: block;
}

.chat-message-text th,
.chat-message-text td {
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
  text-align: left;
}

.chat-message-text th {
  background-color: var(--color-background);
  font-weight: var(--font-bold);
}

/* Zebra-stripe rows */
.chat-message-text tbody tr:nth-child(even) {
  background-color: var(--color-background);
}

/* Links inside chat text */
.chat-message-text a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chat-message-text a:visited {
  color: var(--color-primary);
}

.chat-message-text a:hover {
  color: var(--color-primary-hover);
}

/* ===========================================================================
   Citation links (from sanitize.py §-ref auto-link)
   =========================================================================== */

.citation-link {
  color: var(--color-primary);
  text-decoration: underline dashed;
  text-underline-offset: 3px;
  cursor: pointer;
}

.citation-link:visited {
  color: var(--color-primary);
}

.citation-link:hover,
.citation-link:focus-visible {
  text-decoration: underline solid;
  color: var(--color-primary-hover);
}

/* ===========================================================================
   Sources panel (collapsible <details> below assistant bubble)
   =========================================================================== */

.chat-sources {
  max-width: 88%;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
}

.chat-sources summary {
  cursor: pointer;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  user-select: none;
  padding: var(--space-1) 0;
  list-style: none; /* hide default arrow on some browsers */
}

/* Custom disclosure arrow */
.chat-sources summary::before {
  content: "▶";
  display: inline-block;
  margin-inline-end: var(--space-2);
  font-size: 0.65em;
  transition: transform var(--transition-fast);
  vertical-align: middle;
}

.chat-sources[open] summary::before {
  transform: rotate(90deg);
}

.chat-sources summary:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Source cards list */
.chat-sources ul {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.chat-sources li {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
}

/* ===========================================================================
   Tool activity inline indicator
   =========================================================================== */

.chat-tool-activity {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
}

/* Animated spinner dot */
.chat-tool-activity-spinner {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-text-muted);
  border-right-color: transparent;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  animation: chat-spinner 0.75s linear infinite;
}

@keyframes chat-spinner {
  to {
    transform: rotate(360deg);
  }
}

/* When done: hide spinner, show checkmark pseudo-element */
.chat-tool-activity.chat-tool-activity-done .chat-tool-activity-spinner {
  display: none;
}

.chat-tool-activity.chat-tool-activity-done::before {
  content: "✓";
  color: var(--color-success);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
}

.chat-tool-activity summary {
  cursor: pointer;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  user-select: none;
}

.chat-tool-activity summary:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ===========================================================================
   Header strip — connection status + quota
   =========================================================================== */

.chat-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

/* ---- Connection status dot + label ---- */

.chat-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* Status indicator dot — color is toggled with modifier classes */
.chat-status::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-text-muted);
  flex-shrink: 0;
}

.chat-status--connected::before {
  background-color: var(--color-success);
}

.chat-status--disconnected::before {
  background-color: var(--color-warning);
}

/* Pulsing animation while reconnecting */
.chat-status--reconnecting::before {
  background-color: var(--color-warning);
  animation: chat-status-pulse 1.2s ease-in-out infinite;
}

@keyframes chat-status-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* ---- Quota pill ---- */

/* Container: a relative pill with a fill bar inside */
.chat-quota {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.chat-quota-bar-wrap {
  position: relative;
  width: 64px;
  height: 6px;
  background-color: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.chat-quota-bar {
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  height: 100%;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition);
}

/* Amber threshold: add class .chat-quota--warning when usage >= 80% */
.chat-quota--warning .chat-quota-bar {
  background-color: var(--color-warning);
}

/* Red threshold: add class .chat-quota--critical when usage >= 100% */
.chat-quota--critical .chat-quota-bar {
  background-color: var(--color-danger);
}

/* Quota label — the text portion of the pill ("12 / 50 queries") */
.chat-quota-label {
  white-space: nowrap;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

/* Compact quota on very small screens: bar-only, no label text */
@media (max-width: 420px) {
  /* Default full quota pill — hide the label text, keep the bar */
  .chat-quota .chat-quota-label {
    display: none;
  }

  /* Compact variant: bar only, no gap, minimal padding — fits in tight spaces */
  .chat-quota--compact {
    gap: 0;
  }

  .chat-quota--compact .chat-quota-label {
    display: none;
  }
}

/* ===========================================================================
   Draft context badge strip
   =========================================================================== */

.chat-draft-context {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  background-color: var(--color-info-bg);
  border-bottom: 1px solid var(--color-border);
}

.draft-context-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Secondary action link next to the draft badge (e.g. "View impact analysis") */
.draft-context-impact-link {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: underline dashed;
  text-underline-offset: 2px;
  margin-inline-start: var(--space-2);
  transition: color var(--transition-fast);
}

.draft-context-impact-link:hover {
  color: var(--color-primary);
  text-decoration: underline solid;
}

/* ===========================================================================
   Empty state + example prompts
   =========================================================================== */

.chat-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding-block: 4rem;
  gap: var(--space-6);
  color: var(--color-text-muted);
}

.chat-empty-state-icon {
  font-size: 3rem;
  line-height: 1;
}

.chat-empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin: 0;
}

.chat-empty-state-body {
  font-size: var(--text-base);
  margin: 0;
}

/* ---- Example prompt grid ---- */

.chat-example-prompts {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
  text-align: left;
}

/* Individual prompt card — a reset <button> styled as a card */
.chat-example-prompt {
  /* Button reset */
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--text-sm);
  color: var(--color-text);

  /* Card styling */
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition:
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.chat-example-prompt:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.chat-example-prompt:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-lg);
}

.chat-example-prompt-label {
  font-weight: var(--font-medium);
  margin-block-end: var(--space-1);
  color: var(--color-text);
}

.chat-example-prompt-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ===========================================================================
   Follow-up chips
   =========================================================================== */

.chat-follow-ups {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block: var(--space-3);
}

.chat-follow-up-chip {
  /* Button reset */
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);

  /* Pill styling */
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full);
  line-height: var(--leading-normal);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.chat-follow-up-chip:hover {
  background-color: var(--color-primary);
  color: var(--color-primary-text);
}

.chat-follow-up-chip:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* ===========================================================================
   Message action buttons (regenerate / copy / feedback)
   =========================================================================== */

.chat-message-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  /* Hidden until the parent message is hovered or has keyboard focus */
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.chat-message:hover .chat-message-actions,
.chat-message:focus-within .chat-message-actions {
  opacity: 1;
}

/* Icon action button — minimal square with tooltip via title attribute */
.chat-message-actions button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.chat-message-actions button:hover {
  background-color: var(--color-background);
  border-color: var(--color-border);
  color: var(--color-text);
}

.chat-message-actions button:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* ===========================================================================
   Toast notifications (CSS-only animation; JS controls visibility)
   =========================================================================== */

/* A single toast pill — positioned by .chat-toast-container below */
.chat-toast {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  box-shadow: var(--shadow-lg);
  /* Entry/exit animation */
  animation: chat-toast-in 0.22s ease both;
  pointer-events: auto;
}

/* Auto-dismiss fade out — JS adds .chat-toast--leaving to trigger */
.chat-toast--leaving {
  animation: chat-toast-out 0.3s ease both;
}

@keyframes chat-toast-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes chat-toast-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(8px) scale(0.96);
  }
}

/* ---- Toast variants ---- */

.chat-toast--info {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info);
}

.chat-toast--success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.chat-toast--warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}

.chat-toast--error {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

/* Container stack — fixed bottom-center, above everything */
.chat-toast-container {
  position: fixed;
  bottom: calc(var(--space-6) + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  pointer-events: none;
}

/* ===========================================================================
   Misc utility classes used in chat routes
   =========================================================================== */

/* Delete form alignment */
.chat-delete-form {
  display: inline-block;
}

/* ---- Send / Stop buttons in the input bar ---- */

.chat-send-btn,
.chat-stop-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: var(--text-base);
  transition:
    background-color var(--transition-fast),
    opacity var(--transition-fast);
}

.chat-send-btn {
  background-color: var(--color-primary);
  color: var(--color-primary-text);
}

.chat-send-btn:hover {
  background-color: var(--color-primary-hover);
}

.chat-send-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.chat-send-btn:focus-visible,
.chat-stop-btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.chat-stop-btn {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.chat-stop-btn:hover {
  background-color: var(--color-danger);
  color: #fff;
}

/* ---- Per-message action icon button (named variant) ---- */

.chat-message-action-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.chat-message-action-btn:hover {
  background-color: var(--color-background);
  border-color: var(--color-border);
  color: var(--color-text);
}

.chat-message-action-btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* ===========================================================================
   Responsive adjustments
   =========================================================================== */

@media (max-width: 640px) {
  .chat-messages {
    padding: var(--space-4) var(--space-3) var(--space-3);
    gap: var(--space-3);
  }

  .chat-input-area {
    padding: var(--space-2) var(--space-3) calc(var(--space-2) + env(safe-area-inset-bottom, 0px));
  }

  /* Wider bubbles on small screens */
  .chat-message-user .chat-bubble,
  .chat-bubble-user {
    max-width: 95%;
  }

  .chat-message-assistant .chat-bubble,
  .chat-bubble-assistant {
    max-width: 95%;
  }

  .chat-message-error .chat-bubble,
  .chat-bubble-error {
    max-width: 95%;
  }

  .chat-sources {
    max-width: 95%;
  }

  .chat-empty-state {
    padding-block: 2.5rem;
  }

  .chat-example-prompts {
    grid-template-columns: 1fr;
  }
}

/* ===========================================================================
   Slash command palette
   Anchored above the input area. JS sets display to block when open.
   =========================================================================== */

.chat-slash-palette {
  display: none; /* shown by JS on "/" keypress via .is-open */
  position: absolute;
  bottom: 100%; /* anchors just above the input bar */
  left: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-dropdown, 200);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 260px;
  overflow-y: auto;
  padding: var(--space-1) 0;
  /* Subtle slide-up entry when JS adds .is-open */
  animation: chat-palette-in 0.14s ease both;
}

.chat-slash-palette.is-open {
  display: block;
}

@keyframes chat-palette-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Single command row */
.chat-slash-palette-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.chat-slash-palette-item:hover,
.chat-slash-palette-item.is-active {
  background-color: var(--color-primary-subtle);
}

.chat-slash-palette-item:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: -2px;
}

/* Command name — brand colour, medium weight */
.chat-slash-palette-label {
  font-weight: var(--font-medium);
  color: var(--color-primary);
  font-size: var(--text-sm);
  flex-shrink: 0;
}

/* Short description — muted, monospace, slightly smaller */
.chat-slash-palette-hint {
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===========================================================================
   New-messages pill
   Floats above the input bar when the user is scrolled up and a new
   assistant message arrives.
   =========================================================================== */

.chat-new-messages-pill {
  position: absolute;
  bottom: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-dropdown, 200);

  /* Pill appearance */
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background-color: var(--color-primary);
  color: var(--color-primary-text);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow);
  cursor: pointer;
  white-space: nowrap;
  border: none;
  appearance: none;

  animation: chat-pill-fadein 0.2s ease both;
}

@keyframes chat-pill-fadein {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.chat-new-messages-pill:hover {
  background-color: var(--color-primary-hover);
}

.chat-new-messages-pill:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* ===========================================================================
   Edit-in-place (user message editing)
   =========================================================================== */

/* Full-width textarea that replaces the message bubble while editing */
.chat-edit-textarea {
  width: 100%;
  max-width: 78%; /* match .chat-bubble-user max-width */
  font-family: var(--font-family);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  resize: vertical;
  field-sizing: content;
  max-height: 320px;
  overflow-y: auto;
}

.chat-edit-textarea:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Row of Save + Cancel buttons beneath the textarea */
.chat-edit-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  justify-content: flex-end;
  max-width: 78%;
}

/* Save — primary filled button */
.chat-edit-save {
  appearance: none;
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-4);
  background-color: var(--color-primary);
  color: var(--color-primary-text);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.chat-edit-save:hover {
  background-color: var(--color-primary-hover);
}

.chat-edit-save:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Cancel — ghost button */
.chat-edit-cancel {
  appearance: none;
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-4);
  background-color: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.chat-edit-cancel:hover {
  background-color: var(--color-background);
  color: var(--color-text);
}

.chat-edit-cancel:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* ===========================================================================
   Stopped / truncated message states
   =========================================================================== */

/* Italic note appended when streaming was interrupted */
.chat-stopped-note {
  display: block;
  margin-block-start: var(--space-2);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Bubble modifier for truncated messages — amber dashed bottom border */
.chat-message-truncated .chat-bubble {
  border-bottom: 2px dashed var(--color-warning);
}

/* Modifier for pinned messages — amber left accent + subtle tinted background */
.chat-message--pinned .chat-bubble {
  border-left: 3px solid var(--color-warning);
  background-color: color-mix(in srgb, var(--color-warning) 6%, var(--color-surface));
}

/* Small gold star in the top-right of a pinned message / conversation row */
.chat-pin-indicator {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1;
  color: var(--color-warning);
  pointer-events: none;
  user-select: none;
}

/* Make pinned message rows the positioning context for the indicator */
.chat-message--pinned {
  position: relative;
}

/* ===========================================================================
   Tool activity details — spinner + pre blocks
   =========================================================================== */

/* ===========================================================================
   Thinking indicator (bridges send → first content_delta)
   =========================================================================== */

.chat-thinking {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.chat-thinking-status {
  font-style: italic;
}

.chat-thinking-elapsed {
  color: var(--color-text-subtle, var(--color-text-muted));
  font-variant-numeric: tabular-nums;
  font-size: var(--font-size-xs);
}

.chat-thinking-dots {
  display: inline-flex;
  gap: 3px;
  align-items: center;
}

.chat-thinking-dots > span {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  opacity: 0.3;
  animation: chat-thinking-pulse 1.2s ease-in-out infinite;
}

.chat-thinking-dots > span:nth-child(2) { animation-delay: 0.15s; }
.chat-thinking-dots > span:nth-child(3) { animation-delay: 0.3s; }

@keyframes chat-thinking-pulse {
  0%, 60%, 100% { opacity: 0.25; transform: scale(1); }
  30%           { opacity: 1;    transform: scale(1.3); }
}

/* While the bubble is still in thinking-only state, hide the empty
   .chat-message-text container so there is no visible gap. */
.chat-message-thinking .chat-message-text:empty {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .chat-thinking-dots > span { animation: none; opacity: 0.6; }
}

/* Small circular CSS spinner used inside tool activity rows */
.chat-tool-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  animation: chat-tool-spin 0.7s linear infinite;
}

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

/* Scrollable code block for tool input payload */
.chat-tool-input,
.chat-tool-result {
  display: block;
  margin-block: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  overflow-x: auto;
  max-height: 240px;
  overflow-y: auto;
  white-space: pre;
  /* Horizontal scroll without a horizontal scrollbar eating vertical space */
  word-break: normal;
  overflow-wrap: normal;
}

/* ===========================================================================
   Source cards — snippet truncation
   =========================================================================== */

/* Two-line truncated preview of the retrieved source passage */
.chat-source-snippet {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
  margin-block-start: var(--space-1);
}

/* Sources list — semantic ul override for the card list */
.chat-sources-list {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* #759: "vaata kaardil →" deep-link beside each cited source — sits
   inline after the source title, slightly muted so it reads as a
   secondary affordance rather than the primary source link. */
.chat-source-map-link {
  margin-inline-start: var(--space-2);
  font-size: var(--text-xs);
  white-space: nowrap;
}

/* ===========================================================================
   C1: Tegevused (outbound action links per cited entity)
   ===========================================================================
   Mirrors the .chat-sources disclosure structure so the two strips read
   as siblings under the assistant bubble. Open by default — the whole
   point of C1 is to surface the next-step affordance, not hide it. */

.chat-actions {
  max-width: 88%;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
}

.chat-actions summary {
  cursor: pointer;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  user-select: none;
  padding: var(--space-1) 0;
  list-style: none;
}

.chat-actions summary::before {
  content: "▶";
  display: inline-block;
  margin-inline-end: var(--space-2);
  font-size: 0.65em;
  transition: transform var(--transition-fast);
  vertical-align: middle;
}

.chat-actions[open] summary::before {
  transform: rotate(90deg);
}

.chat-actions summary:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.chat-actions-list {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.chat-actions-list li {
  margin: 0;
}

.chat-actions-list .chat-action-form {
  display: inline;
  margin: 0;
}

.chat-action-link {
  display: inline-block;
  font-size: var(--text-sm);
  color: var(--color-link);
  text-decoration: none;
  padding: var(--space-1) 0;
}

.chat-action-link:hover,
.chat-action-link:focus-visible {
  text-decoration: underline;
}

/* Button-shaped POST action (chat-seed) — strip the default button
   chrome so it reads as a link alongside the GET anchors. */
.chat-action-link--button {
  background: none;
  border: none;
  padding: var(--space-1) 0;
  cursor: pointer;
  font: inherit;
  text-align: start;
}

/* ===========================================================================
   Conversation list toolbar + row actions
   =========================================================================== */

/* Toolbar row above the conversation list: search + archive toggle + New btn */
.chat-list-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  flex-wrap: wrap;
}

/* Search input matching the design system */
.chat-search-input {
  flex: 1;
  min-width: 140px;
  font-family: var(--font-family);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  transition: border-color var(--transition-fast);
}

.chat-search-input::placeholder {
  color: var(--color-text-muted);
}

.chat-search-input:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

/* Inline checkbox+label for "Show archived" toggle */
.chat-archived-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.chat-archived-toggle input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

/* Flex row of action buttons inside each conversation list row */
.chat-list-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Inline form wrapper so pin/archive submit buttons sit beside each other */
.chat-list-action-form {
  display: inline-flex;
  align-items: center;
}

/* Body region of the conversation list (the scrollable row area) */
.chat-list-body {
  flex: 1;
  overflow-y: auto;
}

/* Inline rename textbox */
.chat-list-rename-input {
  font-family: var(--font-family);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2);
  width: 100%;
  transition: border-color var(--transition-fast);
}

.chat-list-rename-input:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Inline form wrapping the rename input + submit button */
.chat-list-rename-form {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
}

/* ===========================================================================
   Motion safety
   =========================================================================== */

@media (prefers-reduced-motion: reduce) {
  /* Disable all animations / transitions in this sheet */
  .chat-tool-activity-spinner {
    animation: none;
  }

  .chat-status--reconnecting::before {
    animation: none;
  }

  .chat-message {
    animation: none;
  }

  .chat-toast,
  .chat-toast--leaving {
    animation: none;
  }

  .chat-quota-bar {
    transition: none;
  }

  .chat-example-prompt:hover {
    transform: none;
  }

  .chat-sources summary::before {
    transition: none;
  }

  /* New spinner — disabled when motion is reduced */
  .chat-tool-spinner {
    animation: none;
  }

  /* Palette slide-in — disabled */
  .chat-slash-palette {
    animation: none;
  }

  /* New messages pill fade-in — disabled */
  .chat-new-messages-pill {
    animation: none;
  }
}