/* NanoVM Editor — header · main(chat | detail) · footer. Light theme.
   Bootstrap handles components; the app-shell archetype, shared toolbar
   (.nv-header / .nv-brand / .nv-header-actions) and .nv-panel surface live in
   application.css. This file owns the editor grid, the unified chat stream,
   the file tabs, CodeMirror theming and the copilot/debug visuals.
   Theme tokens (--nv-*) live in application.css (loaded globally). */

/* ============================================================================
   App shell (grid: header / main / footer)
   ========================================================================= */
.nv-app {
  display: grid;
  grid-template-rows: var(--nv-header-h) 1fr var(--nv-footer-h);
  height: 100vh;
  background: var(--nv-bg);
  color: var(--nv-text);
}

/* ── Header — editor-specific widgets (.nv-header/.nv-brand are in application.css) ── */
.nv-project {
  font-size: 14px;
  font-weight: 500;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: text;
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--nv-text);
}

.nv-project:hover {
  background-color: rgba(var(--bs-black-rgb), 0.06);
}

.nv-project:focus {
  outline: 1px solid var(--nv-accent);
  background-color: var(--nv-bg);
}

.nv-project:empty::before {
  content: "Untitled";
  color: var(--nv-muted);
}

/* Combined connect/disconnect button with integrated status */
.nv-connect {
  white-space: nowrap;
  border: 1px solid transparent;
}

.nv-connect.is-disconnected {
  color: var(--bs-success);
  border-color: var(--nv-connect-border);
}

.nv-connect.is-disconnected:hover {
  background-color: rgba(var(--bs-success-rgb), 0.1);
}

.nv-connect.is-connecting {
  color: black;
  background-color: var(--bs-warning);
  border-color: var(--bs-warning);
}

.nv-connect.is-connected {
  color: white;
  background-color: var(--bs-success);
  border-color: var(--bs-success);
}

.nv-connect.is-connected:hover {
  background-color: var(--bs-danger);
  border-color: var(--bs-danger);
}

/* ── Main (chat | detail) ──────────────────────────────────────────────────── */
.nv-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
  overflow: hidden;
}

.nv-chat,
.nv-detail {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.nv-chat {
  border-right: 1px solid var(--nv-border);
  background: var(--nv-bg);
}

/* ============================================================================
   Detail pane: file tabs + editor
   ========================================================================= */
.nv-tabs {
  display: flex;
  align-items: stretch;
  flex-shrink: 0;
  overflow-x: auto;
  background: var(--nv-panel);
  border-bottom: 1px solid var(--nv-border);
  scrollbar-width: thin;
}

.nv-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
  border-right: 1px solid var(--nv-border-soft);
  border-bottom: 2px solid transparent;
  color: var(--nv-muted);
  user-select: none;
}

.nv-tab:hover {
  background-color: var(--nv-border-soft);
}

.nv-tab.active {
  background-color: var(--nv-bg);
  color: var(--nv-text);
  border-bottom-color: var(--nv-accent);
}

.nv-tab-icon.main-file {
  color: var(--nv-file-main);
}

.nv-tab-icon.header-file {
  color: var(--nv-file-header);
}

.nv-tab-name {
  font-size: 13px;
}

.nv-tab-actions {
  display: none;
  gap: 2px;
}

.nv-tab:hover .nv-tab-actions {
  display: inline-flex;
}

.nv-tab-actions button {
  padding: 0 2px;
  border: none;
  background: transparent;
  color: var(--nv-muted);
  line-height: 1;
  font-size: 12px;
}

.nv-tab-actions button:hover {
  color: var(--nv-text);
}

.nv-tab-actions .delete-btn:hover {
  color: var(--bs-danger);
}

.nv-tab-new {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: none;
  background: transparent;
  color: var(--nv-muted);
  font-size: 13px;
  white-space: nowrap;
}

.nv-tab-new:hover {
  color: var(--nv-text);
  background-color: var(--nv-border-soft);
}

.nv-detail.drag-over {
  outline: 2px dashed var(--nv-accent);
  outline-offset: -2px;
}

.nv-editor {
  position: relative;
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
  padding: var(--nv-gap);
}

/* ============================================================================
   Version indicator bar (bottom of the editor column, right-aligned)
   ========================================================================= */
.nv-version-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 0;
  padding: 2px 8px;
  background: var(--nv-panel);
  border-top: 1px solid var(--nv-border-soft);
}

.nv-version-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--nv-border-soft);
  background: var(--nv-bg);
  color: var(--nv-muted);
  border-radius: 10px;
  padding: 1px 9px;
  font-size: 11px;
  line-height: 1.5;
  cursor: pointer;
}

.nv-version-chip:hover {
  color: var(--nv-text);
  border-color: var(--nv-border);
}

.nv-version-writer {
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 600;
}

.nv-version-chip.writer-llm .nv-version-writer {
  color: var(--bs-purple);
}

.nv-version-chip.writer-user .nv-version-writer {
  color: var(--nv-writer-user);
}

.nv-version-num {
  color: var(--nv-muted);
}

/* Version history table + writer tags */
.nv-version-table {
  width: 100%;
  font-size: 13px;
  border-collapse: collapse;
}

.nv-version-table th,
.nv-version-table td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--nv-border-soft);
  text-align: left;
  vertical-align: middle;
}

.nv-version-table th {
  color: var(--nv-muted);
  font-weight: 600;
}

.nv-version-row.is-current {
  background: rgba(var(--bs-primary-rgb), 0.06);
}

.nv-writer-tag {
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 600;
  font-size: 11px;
}

.nv-writer-tag.writer-llm {
  color: var(--bs-purple);
}

.nv-writer-tag.writer-user {
  color: var(--nv-writer-user);
}

.nv-version-badge-del {
  color: var(--bs-danger);
  font-size: 12px;
}

.nv-version-actions button {
  margin-left: 3px;
}

.nv-version-view {
  margin: 0;
  padding: 10px;
  background: var(--bs-gray-100);
  border: 1px solid var(--nv-border-soft);
  border-radius: 4px;
  font-family: var(--nv-mono);
  font-size: 13px;
  white-space: pre;
  overflow: auto;
  max-height: 60vh;
}

/* ============================================================================
   Footer (status bar)
   ========================================================================= */
.nv-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.75rem;
  background: var(--nv-panel);
  border-top: 1px solid var(--nv-border);
  color: var(--nv-text);
  font-size: 12px;
}

.status-text {
  font-size: 12px;
  color: var(--nv-muted);
}

.status-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 3px;
  cursor: pointer;
}

.status-item:hover {
  background-color: rgba(var(--bs-black-rgb), 0.06);
}

.status-item.status-errors {
  color: var(--bs-danger);
}

.status-item.status-warnings {
  color: var(--nv-gold);
}

.device-info {
  font-size: 0.85rem;
  color: var(--nv-muted);
}

.device-info .platform {
  color: var(--nv-platform);
  font-weight: 500;
}

.device-info .memory {
  font-size: 0.8rem;
}

.status-separator {
  color: var(--nv-muted);
  font-size: 0.8rem;
}

/* Compile status indicator dot */
.compile-status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.compile-status-dot.status-empty,
.compile-status-dot.status-dirty {
  background-color: var(--bs-gray-500);
}

.compile-status-dot.status-compiling {
  background-color: var(--bs-warning);
  animation: pulse 1s ease-in-out infinite;
}

.compile-status-dot.status-error {
  background-color: var(--bs-danger);
}

.compile-status-dot.status-ready {
  background-color: var(--bs-success);
}

.compile-status-dot.status-running {
  background-color: var(--nv-accent);
  animation: pulse 1s ease-in-out infinite;
}

.compile-status-dot.status-debugging {
  background-color: var(--bs-info);
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============================================================================
   CodeMirror — custom "nanovm" theme (GitHub-light). Own theme class
   (.cm-s-nanovm, selected via theme:"nanovm" at init) so the vendored
   codemirror.min.css default theme never collides, whatever the load order.
   ========================================================================= */
.CodeMirror {
  height: 100% !important;
  font-family: var(--nv-mono);
  font-size: 14px;
  line-height: 1.5;
}

.CodeMirror-scroll {
  overflow-y: auto !important;
  overflow-x: auto !important;
}

.cm-s-nanovm.CodeMirror {
  background-color: var(--nv-bg);
  color: var(--nv-syntax-fg);
}

/* Syntax highlighting tuned for NanoC (GitHub-light palette) */
.cm-s-nanovm .cm-meta {
  color: var(--nv-syntax-comment);
}
.cm-s-nanovm .cm-keyword {
  color: var(--nv-syntax-keyword);
}
.cm-s-nanovm .cm-type {
  color: var(--nv-syntax-type);
  font-style: italic;
}
.cm-s-nanovm .cm-qualifier {
  color: var(--nv-syntax-type);
}
.cm-s-nanovm .cm-builtin {
  color: var(--nv-syntax-type);
}
.cm-s-nanovm .cm-def {
  color: var(--bs-purple);
}
.cm-s-nanovm .cm-variable {
  color: var(--nv-syntax-fg);
}
.cm-s-nanovm .cm-variable-2 {
  color: var(--nv-syntax-type);
}
.cm-s-nanovm .cm-string {
  color: var(--nv-syntax-string);
}
.cm-s-nanovm .cm-string-2 {
  color: var(--nv-syntax-string);
}
.cm-s-nanovm .cm-number {
  color: var(--nv-syntax-type);
}
.cm-s-nanovm .cm-comment {
  color: var(--nv-syntax-comment);
  font-style: italic;
}
.cm-s-nanovm .cm-operator {
  color: var(--nv-syntax-keyword);
}
.cm-s-nanovm .cm-atom {
  color: var(--nv-syntax-type);
}
.cm-s-nanovm .cm-attribute {
  color: var(--bs-purple);
}

/* Error markers */
.error-line {
  background-color: rgba(var(--bs-danger-rgb), 0.1) !important;
}
.error-marker {
  color: var(--bs-danger);
  font-weight: bold;
}

/* Debug line highlighting */
.debug-current-line {
  background-color: rgba(var(--bs-warning-rgb), 0.3) !important;
}
.debug-current-gutter {
  color: var(--nv-gold) !important;
  font-weight: bold;
}
.debug-arrow {
  color: var(--nv-gold);
  font-size: 12px;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--nv-panel);
}
::-webkit-scrollbar-thumb {
  background: var(--nv-border);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--nv-muted);
}

/* ============================================================================
   Chat column: header · stream · status/notice · input
   ========================================================================= */
.chat-header {
  flex-shrink: 0;
  font-size: 14px;
  background-color: var(--nv-panel);
  border-bottom: 1px solid var(--nv-border);
}

.chat-scroll {
  min-height: 0;
  padding: var(--nv-gap) var(--nv-gap) var(--nv-gap) var(--nv-chat-gutter);
}

/* Unified output stream: every post is a rounded box with a distinct colour.
   Text-only posts cap at 60% of the chat width; assistant/program posts (which
   may carry code or data dumps) get a little more room. User-initiated posts
   (your text, CLI commands) align right; system/assistant posts align left. */
.nv-line {
  font-family: var(--nv-mono);
  line-height: 1.4;
  white-space: pre-wrap;
}

.nv-line .timestamp {
  color: rgba(var(--bs-black-rgb), 0.4);
  margin-right: 2px;
}

.nv-line--program {
  background-color: var(--nv-program-bg);
  color: var(--nv-program-fg);
  max-width: 80%;
  border-color: var(--nv-program-border);
}
.nv-line--cli {
  background-color: var(--nv-cli-bg);
  color: var(--nv-cli-fg);
  border-color: var(--nv-cli-border);
}
.nv-line--debug {
  background-color: var(--nv-debug-bg);
  color: var(--nv-debug-fg);
  border-color: var(--nv-debug-border);
  font-style: italic;
}
.nv-line--error {
  background-color: var(--nv-error-bg);
  color: var(--nv-error-fg);
  border-color: var(--nv-error-border);
}
.nv-line--warning {
  background-color: var(--nv-warning-bg);
  color: var(--nv-warning-fg);
  border-color: var(--nv-warning-border);
}
.nv-line--success {
  background-color: var(--nv-success-bg);
  color: var(--nv-success-fg);
  border-color: var(--nv-success-border);
}
.nv-line--info {
  background-color: var(--nv-info-bg);
  color: var(--nv-info-fg);
  border-color: var(--nv-info-border);
}

/* Input area = floating mode tabs + composer card. */
.nv-input-area {
  flex-shrink: 0;
}

/* Composer card: rounded, floating above the output (10px left/right/bottom).
   min-height keeps a stable, fully-visible size across the three modes. */
.nv-input {
  margin: 0 20px 20px;
  padding: 8px;
  min-height: 72px;
  background-color: var(--nv-panel);
  border: 1px solid var(--nv-border);
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(var(--bs-black-rgb), 0.12);
}

/* Mode tabs — auto-width pills outside the card: 40px below the output above,
   10px above the card, aligned to the card's 20px side margins. */
.nv-input-modes {
  display: flex;
  gap: 5px;
  margin: 40px 20px 10px;
}

.nv-mode-tab {
  border: 1px solid var(--nv-border);
  background: var(--nv-bg);
  color: var(--nv-text);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 1px 4px rgba(var(--bs-black-rgb), 0.1);
}

.nv-mode-tab:hover {
  border-color: var(--nv-accent);
}

.nv-mode-tab.active {
  background: var(--nv-accent);
  border-color: var(--nv-accent);
  color: white;
}

.nv-input-panel {
  min-height: 0;
}

/* Auto-growing chat composer (textarea grows to ~6 lines, then scrolls) */
.nv-composer {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

.nv-chat-input {
  resize: none;
  line-height: 1.4;
  overflow-y: hidden;
}

.nv-composer .btn {
  flex-shrink: 0;
}

.nv-cli-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.nv-chip {
  border: 1px solid var(--nv-border);
  background: var(--nv-bg);
  color: var(--nv-cli-fg);
  font-family: var(--nv-mono);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
}

.nv-chip:hover {
  border-color: var(--nv-accent);
  color: var(--nv-ink-cli);
  background: var(--nv-panel);
}

/* Debug controls — auto-width buttons (text + margin), solid (inverse) colours,
   disabled ones lighter. */
.nv-debug-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.nv-debug-btn {
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 12px;
  padding: 3px 12px;
  color: white;
  cursor: pointer;
  white-space: nowrap;
}

.nv-debug-btn--start {
  background: var(--bs-info);
  color: var(--nv-ink-info);
}
.nv-debug-btn--step {
  background: var(--bs-warning);
  color: var(--nv-ink-warning);
}
.nv-debug-btn--continue {
  background: var(--bs-success);
}
.nv-debug-btn--stop {
  background: var(--bs-danger);
}

.nv-debug-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ============================================================================
   Debug symbols panel (call stack + variables)
   ========================================================================= */
.debug-panel {
  flex-shrink: 0;
  max-height: 40vh;
  display: flex;
  flex-direction: column;
  background-color: var(--nv-bg);
  border-bottom: 1px solid var(--nv-border);
}

.debug-panel-header {
  background-color: var(--nv-panel);
  font-size: 14px;
  flex-shrink: 0;
  color: var(--nv-text);
}

.debug-panel-content {
  overflow-y: auto;
  flex: 1;
  background-color: var(--nv-bg);
}

.debug-panel-content.collapsed {
  max-height: 0;
  overflow: hidden;
}

.debug-section {
  padding: 6px 10px;
  border-bottom: 1px solid var(--nv-border-soft);
}

.debug-section:last-child {
  border-bottom: none;
}

.debug-section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--nv-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.debug-section-content {
  font-family: var(--nv-mono);
  font-size: 12px;
}

.debug-frame {
  padding: 3px 6px;
  margin: 1px 0;
  border-radius: 3px;
}
.debug-frame-current {
  background-color: var(--nv-user-bg);
}
.debug-frame-name {
  color: var(--bs-purple);
}
.debug-frame-line {
  color: var(--nv-muted);
  font-size: 11px;
}
.debug-var {
  display: flex;
  align-items: baseline;
  padding: 2px 0;
  gap: 4px;
  flex-wrap: wrap;
}
.debug-var-section {
  font-size: 10px;
  text-transform: uppercase;
  color: var(--nv-muted);
  margin-top: 8px;
  margin-bottom: 2px;
  padding-left: 2px;
}
.debug-var-section:first-child {
  margin-top: 0;
}
.debug-var-name {
  color: var(--nv-syntax-type);
}
.debug-var-type {
  color: var(--nv-muted);
  font-size: 11px;
}
.debug-var-eq {
  color: var(--nv-muted);
}
.debug-var-value {
  color: var(--nv-error-fg);
}

/* ============================================================================
   Compiler output (modal)
   ========================================================================= */
.compiler-output-content {
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.compiler-output-content .error-line {
  color: var(--nv-error-fg);
  cursor: pointer;
}
.compiler-output-content .error-line:hover {
  text-decoration: underline;
}
.compiler-output-content .warning-line {
  color: var(--nv-warning-fg);
  cursor: pointer;
}
.compiler-output-content .warning-line:hover {
  text-decoration: underline;
}

/* ============================================================================
   Copilot chat bubbles + structured sections
   ========================================================================= */
/* Shared post-box geometry for copilot bubbles and stream lines. */
.copilot-bubble,
.nv-line {
  width: fit-content;
  max-width: 60%;
  padding: 6px 10px;
  margin-bottom: 6px;
  border-radius: 10px;
  border: 1px solid rgba(var(--bs-black-rgb), 0.08);
  font-size: 13px;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* Right: user-initiated. Left: system / assistant. */
.copilot-bubble-user,
.nv-line--cli {
  margin-left: auto;
}

.copilot-bubble-assistant,
.copilot-bubble-failed,
.nv-line--program,
.nv-line--debug,
.nv-line--error,
.nv-line--warning,
.nv-line--success,
.nv-line--info {
  margin-right: auto;
}

.copilot-bubble-user {
  background-color: var(--nv-user-bg);
  color: var(--nv-user-fg);
  border-color: var(--nv-user-border);
}
.copilot-bubble-assistant {
  background-color: var(--nv-panel);
  color: var(--nv-text);
  max-width: 78%;
  border-color: var(--nv-border-soft);
}
.copilot-bubble-failed {
  background-color: var(--nv-error-bg);
  color: var(--nv-error-fg);
  border-color: var(--nv-error-border);
}
.copilot-bubble-text {
  white-space: pre-wrap;
}

.copilot-streaming {
  white-space: pre-wrap;
}
.copilot-streaming:empty {
  display: none;
}

.copilot-section {
  margin: 4px 0;
}
.copilot-section:first-child {
  margin-top: 0;
}
.copilot-section:last-child {
  margin-bottom: 0;
}
.copilot-section-text {
  white-space: pre-wrap;
}

.copilot-section-recap .copilot-section-text {
  border-left: 3px solid var(--nv-accent);
  padding: 2px 0 2px 8px;
  color: var(--nv-recap-fg);
  font-weight: 500;
}

.copilot-section-details .copilot-section-text {
  color: var(--nv-detail-fg);
}

.copilot-section-label {
  font-size: 11px;
  color: var(--nv-label-fg);
  margin-bottom: 2px;
  font-family: var(--nv-mono);
}

.copilot-output {
  margin: 0;
  padding: 6px 10px;
  background-color: var(--nv-output-bg);
  border: 1px solid var(--nv-output-border);
  border-left: 3px solid var(--nv-output-accent);
  border-radius: 6px;
  overflow-x: auto;
  white-space: pre-wrap;
  font-size: 12px;
  line-height: 1.4;
  font-family: var(--nv-mono);
  color: var(--nv-output-fg);
}

.copilot-meta {
  margin-top: 6px;
  padding-top: 4px;
  border-top: 1px solid var(--nv-border);
  font-size: 11px;
  color: var(--nv-muted);
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.copilot-meta-cost {
  color: var(--nv-cost-fg);
  font-variant-numeric: tabular-nums;
}
.copilot-meta-model {
  margin-left: auto;
  opacity: 0.8;
}

.copilot-status:empty {
  display: none;
}

.copilot-running {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 20px 8px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--nv-info-fg);
  background-color: var(--nv-info-bg);
  border: 1px solid var(--nv-info-border);
  border-radius: 6px;
}

.copilot-running-text {
  flex-grow: 1;
}

.copilot-running-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--nv-info-fg);
  animation: copilot-pulse 1s ease-in-out infinite;
  flex-shrink: 0;
}

.copilot-running-stopping .copilot-running-dot {
  background-color: var(--nv-gold);
}

@keyframes copilot-pulse {
  0%,
  100% {
    opacity: 0.3;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

.copilot-stop-form {
  margin: 0;
}
.copilot-stop {
  padding: 1px 8px;
  font-size: 11px;
  line-height: 1.4;
}

.copilot-notice:empty {
  display: none;
}

.copilot-notice-text {
  margin: 0 20px 8px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--nv-warning-fg);
  background-color: var(--nv-warning-bg);
  border: 1px solid var(--nv-warning-border);
  border-radius: 6px;
}

/* ============================================================================
   Responsive: stack chat / detail on narrow viewports
   ========================================================================= */
@media (max-width: 768px) {
  .nv-main {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .nv-chat {
    border-right: none;
    border-bottom: 1px solid var(--nv-border);
  }

  .nv-project {
    max-width: 120px;
  }
}