/*
 *  components.css
 *  Zyquo Cloud Web
 *
 *  Author: Simon-Pierre Boucher
 *  Mail: contact@spboucher.ai
 *
 *  Component styles — every value comes from tokens.css. Layout mirrors the
 *  native app (sidebar 260 + centered 760 transcript column), responsive:
 *  the sidebar becomes a drawer under 768px.
 */

/* ---------- Shell ---------- */

.shell {
  display: flex;
  height: 100%;
  background: var(--z-background);
}

.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
}

/* ---------- Sidebar ---------- */

.sidebar {
  width: var(--z-sidebar-width);
  min-width: var(--z-sidebar-width);
  display: flex;
  flex-direction: column;
  border-right: var(--z-hairline) solid var(--z-border);
  background: var(--z-background);
  height: 100%;
}

.sidebar-wordmark {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  padding: 12px var(--z-space-md) var(--z-space-xs);
  font-size: 14px;
  font-weight: 500;
  user-select: none;
}

.sidebar-search {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 var(--z-space-sm) var(--z-space-xs);
  padding: 5px var(--z-space-xs);
  border-radius: var(--z-radius-small);
  background: color-mix(in srgb, var(--z-surface-secondary) 70%, transparent);
  color: var(--z-text-tertiary);
}
.sidebar-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 12.5px;
  color: var(--z-text-primary);
  min-width: 0;
}

.new-chat-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0 var(--z-space-sm) var(--z-space-xs);
  padding: 7px var(--z-space-sm);
  border-radius: var(--z-radius-small);
  background: var(--z-accent);
  color: var(--z-on-accent);
  font-size: 13px;
  font-weight: 500;
  transition: transform var(--z-motion-hover);
}
.new-chat-button:active {
  transform: scale(var(--z-motion-pressed-scale));
}

.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--z-space-xs);
}

.conversation-group-header {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  padding: 12px var(--z-space-xs) 2px;
  user-select: none;
}

.conversation-row {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  text-align: left;
  padding: 5px var(--z-space-xs);
  border-radius: var(--z-radius-small);
  margin-bottom: 2px;
  transition: background var(--z-motion-hover);
  position: relative;
}
.conversation-row:hover {
  background: color-mix(in srgb, var(--z-surface-secondary) 60%, transparent);
}
.conversation-row.selected {
  background: var(--z-accent-subtle);
}
.conversation-row-main {
  flex: 1;
  min-width: 0;
}
.conversation-row-title {
  font-size: 13px;
  color: var(--z-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.conversation-row-sub {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.conversation-row-actions {
  display: none;
  gap: 4px;
  color: var(--z-text-tertiary);
}
.conversation-row:hover .conversation-row-actions {
  display: flex;
}
.conversation-row .pin-indicator {
  color: var(--z-text-tertiary);
  font-size: 9px;
}
.conversation-row:hover .pin-indicator {
  display: none;
}

.sidebar-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--z-space-xs) var(--z-space-md);
  border-top: var(--z-hairline) solid var(--z-border);
  color: var(--z-text-tertiary);
  font-size: var(--z-font-size-caption);
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--z-radius-small);
  color: var(--z-text-secondary);
  transition: background var(--z-motion-hover);
}
.icon-button:hover {
  background: var(--z-surface-secondary);
}
.icon-button.danger:hover {
  color: var(--z-danger);
}

/* ---------- Chat header ---------- */

.chat-header {
  height: var(--z-chat-header-height);
  min-height: var(--z-chat-header-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 var(--z-space-md);
  border-bottom: var(--z-hairline) solid var(--z-border);
  gap: var(--z-space-xs);
}
.chat-header-left {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  min-width: 0;
}
.chat-header-right {
  display: flex;
  align-items: center;
  gap: 2px;
  justify-content: flex-end;
}
.chat-title {
  font-size: 13px;
  font-weight: 500;
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: default;
}
.chat-title-input {
  font-size: 13px;
  font-weight: 500;
  border: none;
  outline: none;
  background: var(--z-surface-secondary);
  border-radius: var(--z-radius-small);
  padding: 2px 6px;
  max-width: 220px;
}

/* ---------- Model chip ---------- */

.model-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px var(--z-space-xs);
  border-radius: var(--z-radius-small);
  background: var(--z-surface-secondary);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--z-text-primary);
  transition: transform var(--z-motion-hover);
  white-space: nowrap;
  max-width: 60vw;
  overflow: hidden;
  text-overflow: ellipsis;
}
.model-chip:active {
  transform: scale(var(--z-motion-pressed-scale));
}
.model-chip .glyph {
  color: var(--z-accent);
  display: inline-flex;
}
.model-chip .chevron {
  color: var(--z-text-tertiary);
  font-size: 8px;
}

/* ---------- Model menu (command-palette style) ---------- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 20, 0.25);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 8vh var(--z-space-md) var(--z-space-md);
  z-index: 100;
  animation: overlay-in 120ms ease-out;
}
@keyframes overlay-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.panel {
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-large);
  box-shadow: var(--z-shadow-panel);
  width: 620px;
  max-width: 100%;
  max-height: 72vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: panel-in 150ms ease-out;
}
@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(6px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.panel-search {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  padding: var(--z-space-sm) var(--z-space-md);
  border-bottom: var(--z-hairline) solid var(--z-border);
  color: var(--z-text-tertiary);
  flex-shrink: 0;
}
.panel-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 15px;
  color: var(--z-text-primary);
}

.panel-filters {
  display: flex;
  gap: 6px;
  padding: var(--z-space-xs) var(--z-space-md);
  border-bottom: var(--z-hairline) solid var(--z-border);
  overflow-x: auto;
  flex-wrap: nowrap;
  flex-shrink: 0;
}
.panel-footer {
  flex-shrink: 0;
}
.filter-chip {
  font-size: var(--z-font-size-caption);
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--z-surface-secondary);
  color: var(--z-text-secondary);
  white-space: nowrap;
  transition: background var(--z-motion-hover);
}
.filter-chip.active {
  background: var(--z-accent);
  color: var(--z-on-accent);
}

.panel-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--z-space-xs);
}

.panel-section-header {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  padding: 10px var(--z-space-xs) 2px;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}

.model-row {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  width: 100%;
  text-align: left;
  padding: 5px var(--z-space-xs);
  border-radius: var(--z-radius-small);
  transition: background var(--z-motion-hover);
}
.model-row:hover,
.model-row.highlighted {
  background: var(--z-surface-secondary);
}
.model-row.current {
  background: var(--z-accent-subtle);
}
.model-row .glyph {
  color: var(--z-accent);
  width: 16px;
  display: inline-flex;
  justify-content: center;
}
.model-row-name {
  font-size: 12.5px;
  color: var(--z-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.model-row-provider {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
}
.model-row-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  color: var(--z-text-tertiary);
  font-size: var(--z-font-size-caption);
  flex-shrink: 0;
}
.capability-badge {
  font-size: 10px;
}
.model-row .star {
  color: var(--z-text-tertiary);
  font-size: 11px;
}
.model-row .star.active {
  color: var(--z-warning);
}
.badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--z-surface-secondary);
  color: var(--z-text-secondary);
  white-space: nowrap;
}
.badge.accent {
  background: var(--z-accent-subtle);
  color: var(--z-accent);
}
.badge.warn {
  background: color-mix(in srgb, var(--z-warning) 12%, transparent);
  color: var(--z-warning);
}

.panel-empty {
  padding: var(--z-space-xl);
  text-align: center;
  color: var(--z-text-tertiary);
  font-size: 12.5px;
}

.panel-footer {
  display: flex;
  gap: var(--z-space-md);
  padding: var(--z-space-xs) var(--z-space-md);
  border-top: var(--z-hairline) solid var(--z-border);
  color: var(--z-text-tertiary);
  font-size: var(--z-font-size-caption);
}
.panel-footer kbd {
  background: var(--z-surface-secondary);
  border-radius: 4px;
  padding: 0 5px;
  font-size: 10px;
}

/* ---------- Transcript ---------- */

.transcript {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
}
.transcript-column {
  max-width: var(--z-max-message-column);
  margin: 0 auto;
  padding: var(--z-space-md);
  display: flex;
  flex-direction: column;
  gap: var(--z-turn-rhythm);
}
.density-compact .transcript-column {
  gap: 10px;
}

.turn {
  display: flex;
  gap: var(--z-space-xs);
  animation: message-in var(--z-motion-send);
}
@keyframes message-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.turn.user {
  justify-content: flex-end;
  padding-left: 60px;
}
.turn.assistant {
  padding-right: 60px;
}

.avatar {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: 50%;
  background: var(--z-accent-subtle);
  color: var(--z-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.turn-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  max-width: 100%;
}

.bubble {
  padding: 10px var(--z-space-sm);
  border-radius: var(--z-radius-medium);
  font-size: var(--z-chat-font-size);
  line-height: var(--z-line-height-body);
  overflow-wrap: break-word;
  min-width: 0;
}
.turn.user .bubble {
  background: var(--z-accent-subtle);
  white-space: pre-wrap;
}
.turn.assistant .bubble {
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
}
.bubble .error-note {
  display: flex;
  gap: 6px;
  align-items: flex-start;
  color: var(--z-danger);
  background: color-mix(in srgb, var(--z-danger) 8%, transparent);
  border-radius: var(--z-radius-small);
  padding: var(--z-space-xs);
  font-size: calc(var(--z-chat-font-size) - 1px);
  margin-top: 6px;
}

.meta-row {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  opacity: 0;
  transition: opacity var(--z-motion-hover);
  min-height: 18px;
  flex-wrap: wrap;
}
.turn:hover .meta-row,
.meta-row.always {
  opacity: 1;
}
.turn.user .meta-row {
  justify-content: flex-end;
}
.meta-action {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--z-text-tertiary);
  border-radius: 4px;
  padding: 1px 4px;
  transition: background var(--z-motion-hover);
  font-size: var(--z-font-size-caption);
}
.meta-action:hover {
  background: var(--z-surface-secondary);
  color: var(--z-text-secondary);
}

.reasoning-section {
  margin-bottom: 6px;
}
.reasoning-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--z-font-size-caption);
  color: var(--z-text-secondary);
}
.reasoning-toggle .chev {
  display: inline-block;
  transition: transform 120ms ease;
  font-size: 8px;
}
.reasoning-toggle .chev.open {
  transform: rotate(90deg);
}
.reasoning-body {
  margin-top: 6px;
  padding: var(--z-space-xs);
  background: var(--z-surface-secondary);
  border-radius: var(--z-radius-small);
  font-family: var(--z-font-mono);
  font-size: calc(var(--z-chat-font-size) - 2px);
  color: var(--z-text-secondary);
  white-space: pre-wrap;
  max-height: 320px;
  overflow-y: auto;
}

.citations {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 8px;
}
.citation-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--z-surface-secondary);
  font-size: var(--z-font-size-caption);
  color: var(--z-text-secondary);
  max-width: 220px;
}
.citation-chip:hover {
  text-decoration: none;
  background: var(--z-accent-subtle);
}
.citation-chip .num {
  width: 13px;
  height: 13px;
  min-width: 13px;
  border-radius: 50%;
  background: var(--z-accent);
  color: var(--z-on-accent);
  font-size: 9px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.citation-chip .title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.streaming-caret {
  display: inline-block;
  width: 7px;
  height: 15px;
  border-radius: 3px;
  background: var(--z-accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: caret-blink 1.1s ease-in-out infinite;
}
@keyframes caret-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.15;
  }
}

.jump-pill {
  position: absolute;
  bottom: var(--z-space-xs);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px var(--z-space-sm);
  border-radius: 999px;
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
  box-shadow: var(--z-shadow-soft);
  font-size: var(--z-font-size-caption);
  color: var(--z-text-secondary);
  z-index: 5;
}

.variant-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
}

/* ---------- Markdown ---------- */

.markdown > *:first-child {
  margin-top: 0;
}
.markdown > *:last-child {
  margin-bottom: 0;
}
.markdown p,
.markdown ul,
.markdown ol,
.markdown blockquote,
.markdown table,
.markdown pre {
  margin: 0 0 12px;
}
.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4,
.markdown h5,
.markdown h6 {
  font-weight: 600;
  margin: 16px 0 8px;
  line-height: 1.3;
}
.markdown h1 {
  font-size: calc(var(--z-chat-font-size) * 1.55);
}
.markdown h2 {
  font-size: calc(var(--z-chat-font-size) * 1.35);
}
.markdown h3 {
  font-size: calc(var(--z-chat-font-size) * 1.2);
}
.markdown h4,
.markdown h5,
.markdown h6 {
  font-size: calc(var(--z-chat-font-size) * 1.05);
}
.markdown blockquote {
  border-left: 3px solid var(--z-accent);
  border-radius: 2px;
  padding-left: 12px;
  color: var(--z-text-secondary);
}
.markdown ul,
.markdown ol {
  padding-left: 24px;
}
.markdown li {
  margin-bottom: 3px;
}
.markdown code:not(pre code) {
  font-size: calc(var(--z-chat-font-size) - 1px);
  background: var(--z-surface-secondary);
  border-radius: 4px;
  padding: 1px 5px;
}
.markdown hr {
  border: none;
  border-top: var(--z-hairline) solid var(--z-border);
  margin: 12px 0;
}
.markdown table {
  border-collapse: collapse;
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-small);
  overflow: hidden;
  display: block;
  max-width: 100%;
  overflow-x: auto;
  width: fit-content;
}
.markdown th,
.markdown td {
  padding: 8px 12px;
  border: var(--z-hairline) solid var(--z-border);
  font-size: calc(var(--z-chat-font-size) - 0.5px);
  text-align: left;
}
.markdown thead th {
  background: var(--z-surface-secondary);
  font-weight: 600;
}
.markdown tbody tr:nth-child(odd) {
  background: color-mix(in srgb, var(--z-surface-secondary) 40%, transparent);
}
.markdown img {
  max-width: 100%;
  border-radius: var(--z-radius-small);
}
.markdown input[type='checkbox'] {
  accent-color: var(--z-accent);
  margin-right: 4px;
}

/* Code blocks */
.code-block {
  background: var(--z-surface-secondary);
  border-radius: var(--z-radius-medium);
  overflow: hidden;
}
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 0;
  font-size: var(--z-font-size-caption);
  color: var(--z-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.code-block-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity var(--z-motion-hover);
}
.code-block:hover .code-block-actions,
.code-block-actions.confirming {
  opacity: 1;
}
.code-block-copy {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-secondary);
  text-transform: none;
  letter-spacing: normal;
  padding: 1px 6px;
  border-radius: 4px;
}
.code-block-copy:hover {
  background: color-mix(in srgb, var(--z-border) 50%, transparent);
}
.code-block-copy.ok {
  color: var(--z-success);
}
.code-block pre {
  margin: 0;
  padding: 4px 12px 8px;
  overflow-x: auto;
  font-size: calc(var(--z-chat-font-size) - 1px);
  line-height: 1.5;
}
.code-block pre.wrap {
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
.code-block code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* highlight.js theme mapped to Zyquo syntax tokens */
.hljs-keyword,
.hljs-selector-tag,
.hljs-built_in,
.hljs-tag {
  color: var(--z-code-keyword);
}
.hljs-string,
.hljs-regexp,
.hljs-addition {
  color: var(--z-code-string);
}
.hljs-comment,
.hljs-quote,
.hljs-deletion,
.hljs-meta {
  color: var(--z-code-comment);
}
.hljs-number,
.hljs-literal,
.hljs-symbol {
  color: var(--z-code-number);
}
.hljs-type,
.hljs-class .hljs-title,
.hljs-title.class_ {
  color: var(--z-code-type);
}
.hljs-function .hljs-title,
.hljs-title.function_ {
  color: var(--z-code-function);
}
.hljs-attr,
.hljs-property,
.hljs-variable {
  color: var(--z-code-property);
}
.hljs-attribute,
.hljs-name {
  color: var(--z-code-attribute);
}

/* ---------- Input bar ---------- */

.input-dock {
  padding: 0 var(--z-space-sm) var(--z-space-sm);
}
.input-bar {
  max-width: var(--z-max-message-column);
  margin: 0 auto;
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-large);
  box-shadow: var(--z-shadow-soft);
  padding: var(--z-space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--z-space-xs);
}
.input-bar.drag-target {
  border: 1.5px dashed var(--z-accent);
}
.attachment-strip {
  display: flex;
  gap: var(--z-space-xs);
  overflow-x: auto;
}
.attachment-thumb {
  position: relative;
  width: var(--z-attachment-thumb);
  height: var(--z-attachment-thumb);
  min-width: var(--z-attachment-thumb);
  border-radius: var(--z-radius-small);
  overflow: hidden;
  background: var(--z-surface-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: var(--z-text-secondary);
  text-align: center;
  padding: 2px;
}
.attachment-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.attachment-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--z-text-primary);
  color: var(--z-background);
  font-size: 10px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.input-row {
  display: flex;
  align-items: flex-end;
  gap: var(--z-space-xs);
}
.input-editor {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  resize: none;
  font-size: var(--z-chat-font-size);
  line-height: var(--z-line-height-body);
  max-height: 200px;
  min-height: 22px;
  padding: 2px 0;
  color: var(--z-text-primary);
}
.send-button {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: var(--z-accent);
  color: var(--z-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--z-motion-hover), background var(--z-motion-hover);
}
.send-button:disabled {
  background: var(--z-surface-secondary);
  color: var(--z-text-tertiary);
  cursor: default;
}
.send-button.stop {
  background: var(--z-danger);
}
.send-button:active:not(:disabled) {
  transform: scale(var(--z-motion-pressed-scale));
}
.input-hud {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  flex-wrap: wrap;
}
.context-bar {
  flex: 1;
  min-width: 60px;
  max-width: 160px;
  height: 3px;
  border-radius: 2px;
  background: var(--z-surface-secondary);
  overflow: hidden;
}
.context-bar-fill {
  height: 100%;
  background: var(--z-accent);
  border-radius: 2px;
  transition: width 300ms ease;
}
.context-bar-fill.warn {
  background: var(--z-warning);
}

/* ---------- Empty state ---------- */

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--z-space-lg);
  padding: var(--z-space-xl);
  overflow-y: auto;
}
.empty-title {
  font-size: var(--z-font-size-title);
  font-weight: 600;
  margin: 0;
}
.empty-subtitle {
  color: var(--z-text-secondary);
  margin: 0;
}
.suggestion-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--z-space-sm);
  max-width: 460px;
  width: 100%;
}
.suggestion-card {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  text-align: left;
  padding: var(--z-space-sm);
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-medium);
  font-size: 13px;
  transition: transform var(--z-motion-hover), background var(--z-motion-hover);
}
.suggestion-card:hover {
  background: var(--z-surface-secondary);
}
.suggestion-card:active {
  transform: scale(var(--z-motion-pressed-scale));
}
.suggestion-card .glyph {
  color: var(--z-accent);
  width: 20px;
  display: inline-flex;
  justify-content: center;
}

/* ---------- First run ---------- */

.first-run-note {
  max-width: 560px;
  margin: 0 auto;
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-medium);
  padding: var(--z-space-md);
  font-size: 12.5px;
  color: var(--z-text-secondary);
  display: flex;
  flex-direction: column;
  gap: var(--z-space-xs);
}
.first-run-note strong {
  color: var(--z-text-primary);
}
.first-run-actions {
  display: flex;
  gap: var(--z-space-xs);
  justify-content: flex-end;
}
.button {
  padding: 6px 14px;
  border-radius: var(--z-radius-small);
  font-size: 12.5px;
  font-weight: 500;
  background: var(--z-surface-secondary);
  color: var(--z-text-primary);
  transition: transform var(--z-motion-hover);
}
.button.primary {
  background: var(--z-accent);
  color: var(--z-on-accent);
}
.button.danger {
  background: color-mix(in srgb, var(--z-danger) 10%, transparent);
  color: var(--z-danger);
}
.button:active {
  transform: scale(var(--z-motion-pressed-scale));
}
.button:disabled {
  opacity: 0.5;
  cursor: default;
}

/* ---------- Settings ---------- */

.settings-panel {
  width: 760px;
  max-width: 100%;
  height: 560px;
  max-height: 85vh;
}
.settings-body {
  display: flex;
  flex: 1;
  min-height: 0;
}
.settings-tabs {
  width: 168px;
  min-width: 168px;
  border-right: var(--z-hairline) solid var(--z-border);
  padding: var(--z-space-xs);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.settings-tab {
  text-align: left;
  padding: 6px 10px;
  border-radius: var(--z-radius-small);
  font-size: 13px;
  color: var(--z-text-secondary);
  transition: background var(--z-motion-hover);
}
.settings-tab:hover {
  background: var(--z-surface-secondary);
}
.settings-tab.active {
  background: var(--z-accent-subtle);
  color: var(--z-text-primary);
}
.settings-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--z-space-md);
  min-width: 0;
}
.settings-content h3 {
  margin: 0 0 var(--z-space-sm);
  font-size: 14px;
}
.settings-row {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  padding: var(--z-space-xs) 0;
  border-bottom: var(--z-hairline) solid var(--z-border);
  flex-wrap: wrap;
}
.settings-row:last-child {
  border-bottom: none;
}
.provider-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  width: 140px;
  min-width: 140px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--z-border);
}
.status-dot.ok {
  background: var(--z-success);
}
.status-dot.fail {
  background: var(--z-danger);
}
.status-dot.saved {
  background: var(--z-text-tertiary);
}
.key-input {
  flex: 1;
  min-width: 160px;
  font-family: var(--z-font-mono);
  font-size: 11px;
  padding: 5px 8px;
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-small);
  background: var(--z-background);
  outline: none;
}
.key-input:focus {
  border-color: var(--z-accent);
}
.settings-sub {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  width: 100%;
}
.settings-sub.ok {
  color: var(--z-success);
}
.settings-sub.fail {
  color: var(--z-danger);
}
.select,
.number-input,
.text-input {
  padding: 5px 8px;
  border: var(--z-hairline) solid var(--z-border);
  border-radius: var(--z-radius-small);
  background: var(--z-background);
  font-size: 12.5px;
  outline: none;
}
.text-input:focus,
.number-input:focus {
  border-color: var(--z-accent);
}
.settings-section {
  margin-bottom: var(--z-space-lg);
}
.settings-note {
  font-size: var(--z-font-size-caption);
  color: var(--z-text-tertiary);
  line-height: 1.5;
}
textarea.text-input {
  width: 100%;
  resize: vertical;
  font-family: inherit;
}

/* ---------- Toasts ---------- */

.toasts {
  position: fixed;
  bottom: var(--z-space-md);
  right: var(--z-space-md);
  display: flex;
  flex-direction: column;
  gap: var(--z-space-xs);
  z-index: 200;
  max-width: min(380px, calc(100vw - 32px));
}
.toast {
  display: flex;
  align-items: center;
  gap: var(--z-space-xs);
  background: var(--z-surface);
  border: var(--z-hairline) solid var(--z-border);
  border-left: 3px solid var(--z-accent);
  border-radius: var(--z-radius-medium);
  box-shadow: var(--z-shadow-soft);
  padding: var(--z-space-xs) var(--z-space-sm);
  font-size: 12.5px;
  animation: message-in var(--z-motion-send);
}
.toast.error {
  border-left-color: var(--z-danger);
}
.toast.success {
  border-left-color: var(--z-success);
}
.toast .undo {
  color: var(--z-accent);
  font-weight: 500;
}

/* ---------- Drawer / responsive ---------- */

.drawer-scrim {
  display: none;
}
.menu-button {
  display: none;
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 60;
    transform: translateX(-100%);
    transition: transform 200ms ease;
    box-shadow: none;
    width: min(300px, 85vw);
    min-width: 0;
  }
  .sidebar.open {
    transform: none;
    box-shadow: var(--z-shadow-panel);
  }
  .drawer-scrim {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(10, 12, 20, 0.3);
    z-index: 50;
  }
  .menu-button {
    display: inline-flex;
  }
  .turn.user {
    padding-left: 24px;
  }
  .turn.assistant {
    padding-right: 12px;
  }
  .avatar {
    display: none;
  }
  .overlay {
    padding: 4vh var(--z-space-xs) var(--z-space-xs);
  }
  .settings-body {
    flex-direction: column;
  }
  .settings-tabs {
    width: 100%;
    min-width: 0;
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: var(--z-hairline) solid var(--z-border);
  }
  .settings-panel {
    height: 90vh;
  }
  .icon-button,
  .meta-action,
  .conversation-row {
    min-height: 32px;
  }
  .chat-title {
    max-width: 120px;
  }
}

/* Focus mode hides the sidebar on desktop */
.focus-mode .sidebar {
  display: none;
}
@media (max-width: 768px) {
  .focus-mode .sidebar {
    display: flex;
  }
}