/**
 * ONA Visual Lab — composer.css
 * Composer mode (lab.php?mode=compose) styles.
 * Three-zone layout: topbar / [compose-panel + json-output] / live-preview.
 * BEM convention: .ona-{block}__{element}--{modifier}
 *
 * @requires tokens.css, lab.css
 * @version 0.1
 */

/* ── Composer app shell ───────────────────────────────────────────────────────── */
body.ona-composer-mode {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.ona-composer {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ── Composer topbar ─────────────────────────────────────────────────────────── */
.ona-composer__topbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-5);
  height: var(--ona-topbar-h);
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  z-index: 10;
}

/* ── Mode toggle (VizSpec | Cockpit) ─────────────────────────────────────────── */
.ona-mode-toggle {
  display: flex;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.ona-mode-toggle__btn {
  padding: 4px 12px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  background: transparent;
  border: none;
  transition: background 0.12s, color 0.12s;
  letter-spacing: 0.04em;
}

.ona-mode-toggle__btn--active {
  background: var(--color-accent);
  color: #fff;
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────────── */
.ona-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.ona-breadcrumb__back {
  color: var(--color-accent);
  cursor: pointer;
  text-decoration: underline;
  background: none;
  border: none;
  font: inherit;
  font-size: var(--text-xs);
  padding: 0;
}

.ona-breadcrumb__sep { color: var(--color-border); }

/* ── Topbar context chips ────────────────────────────────────────────────────── */
.ona-topbar__context {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.ona-ctx-chips {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.ona-ctx-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  white-space: nowrap;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ona-ctx-chip--dataset {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(79, 110, 247, 0.08);
}

.ona-ctx-chip--empty {
  opacity: 0.45;
  border-style: dashed;
}

.ona-ctx-chip--dim {
  opacity: 0.6;
}

.ona-ctx-chip__icon {
  font-size: 0.6rem;
  opacity: 0.7;
  flex-shrink: 0;
}

/* ── Three-zone body ─────────────────────────────────────────────────────────── */
.ona-composer__body {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* ── Left: compose panel + JSON output (stacked) ─────────────────────────────── */
.ona-composer__left {
  display: flex;
  flex-direction: column;
  width: 35%;
  min-width: 300px;
  max-width: 460px;
  border-right: 1px solid var(--color-border);
  flex-shrink: 0;
  overflow: hidden;
}

/* ── Compose panel (scrollable form) ────────────────────────────────────────── */
.ona-compose-panel {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ── Collapsible section ─────────────────────────────────────────────────────── */
.ona-compose-section {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 4px;
}

.ona-compose-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--color-bg-elevated);
  cursor: pointer;
  user-select: none;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  transition: background 0.1s;
}

.ona-compose-section__header:hover { background: var(--color-bg-input); }

.ona-compose-section__chevron {
  font-size: 0.6rem;
  transition: transform 0.15s;
}

.ona-compose-section__chevron--open { transform: rotate(90deg); }

.ona-compose-section__body {
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  border-top: 1px solid var(--color-border);
}

/* ── Form row ────────────────────────────────────────────────────────────────── */
.ona-compose-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ona-compose-row__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.ona-compose-row__hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  opacity: 0.7;
  margin-top: 1px;
}

.ona-compose-row__error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: 1px;
}

/* ── Inline lens toggle rows ─────────────────────────────────────────────────── */
.ona-lens-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
}

.ona-lens-row input[type="checkbox"] { accent-color: var(--color-accent); cursor: pointer; }

.ona-lens-row select {
  flex: 1;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  font-size: var(--text-xs);
  color: var(--color-text);
}

/* ── Cockpit panel row ───────────────────────────────────────────────────────── */
.ona-panel-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
}

.ona-panel-row__index {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  min-width: 18px;
}

.ona-panel-row__edit {
  font-size: 0.6rem;
  padding: 2px 6px;
  flex-shrink: 0;
}

.ona-panel-row__remove {
  font-size: 0.6rem;
  padding: 2px 6px;
  flex-shrink: 0;
  color: var(--color-danger);
  border-color: rgba(248,113,113,0.3);
}

/* ── JSON output area ────────────────────────────────────────────────────────── */
.ona-json-output {
  flex-shrink: 0;
  transition: height 0.2s ease;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  overflow: hidden;
}

.ona-json-output__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 8px;
  flex-shrink: 0;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
}

.ona-json-output__label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  user-select: none;
  flex: 1;
}

.ona-json-output__hint {
  font-size: 0.6rem;
  color: var(--color-accent);
  font-style: italic;
}

.ona-json-output__actions {
  display: flex;
  gap: var(--space-1);
}

.ona-json-output__error {
  padding: 4px 10px;
  font-size: var(--text-xs);
  color: #f87171;
  background: rgba(248, 113, 113, 0.08);
  border-bottom: 1px solid rgba(248, 113, 113, 0.2);
  flex-shrink: 0;
}

.ona-json-output__editor {
  flex: 1;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.65rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  white-space: pre;
  overflow: auto;
}

.ona-json-output__editor:focus {
  color: var(--color-text);
  background: rgba(79, 110, 247, 0.04);
}

.ona-json-output--expanded {
  height: 440px;
}

/* xs button variant */
.ona-btn--xs {
  padding: 1px 6px;
  font-size: 0.6rem;
  border-radius: 3px;
}

/* ── Live preview zone ───────────────────────────────────────────────────────── */
.ona-composer__right {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
}

.ona-composer__preview-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* onaViz instance embedded in the composer preview zone */
.ona-preview-viz {
  position: absolute;
  inset: 0;
}

.ona-composer__preview-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ── Onboarding guide (preview empty state) ──────────────────────────────────── */
.ona-onboard {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 320px;
  width: 100%;
}

.ona-onboard__title {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0.6;
}

.ona-onboard__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.ona-onboard__steps li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  opacity: 0.5;
  transition: opacity 0.2s;
}

.ona-onboard__steps li.done {
  opacity: 1;
  color: var(--color-text);
}

.ona-onboard__num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.ona-onboard__steps li.done .ona-onboard__num {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.ona-onboard__check {
  margin-left: auto;
  color: var(--color-accent);
  font-size: var(--text-sm);
}

.ona-onboard__hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  opacity: 0.4;
  margin: 0;
}

.ona-composer__preview-demand {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 17, 23, 0.85);
  z-index: 20;
}

/* ── Validation summary ──────────────────────────────────────────────────────── */
.ona-validation-summary {
  padding: var(--space-2) var(--space-4);
  background: rgba(248,113,113,0.08);
  border-top: 1px solid rgba(248,113,113,0.2);
  font-size: var(--text-xs);
  color: var(--color-danger);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ── Save modal ──────────────────────────────────────────────────────────────── */
.ona-save-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.ona-save-modal__box {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  width: 360px;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}

.ona-save-modal__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
}

.ona-save-modal__warning {
  font-size: var(--text-xs);
  color: var(--color-warning);
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(251,191,36,0.3);
  border-radius: var(--radius-sm);
  background: rgba(251,191,36,0.06);
}

.ona-save-modal__actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

/* ── 2x2 grid layout (composer addition) ────────────────────────────────────── */
.ona-cockpit-grid--2x2 {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
}

/* ── Toast notifications ─────────────────────────────────────────────────────── */
.ona-toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  padding: var(--space-3) var(--space-5);
  border-radius: 6px;
  font-size: var(--text-sm);
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  z-index: 9999;
}

.ona-toast--visible {
  opacity: 1;
  transform: translateY(0);
}

.ona-toast--success {
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid rgba(52, 211, 153, 0.4);
  color: #34d399;
}

.ona-toast--error {
  background: rgba(248, 113, 113, 0.15);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: #f87171;
}

/* ── Quick-start preset cards ────────────────────────────────────────────────── */
.ona-preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.ona-preset-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s, background 0.12s;
}

.ona-preset-card:hover {
  border-color: var(--color-accent);
  background: rgba(79, 110, 247, 0.06);
}

.ona-preset-card__name {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text);
}

.ona-preset-card__desc {
  font-size: 0.6rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ── Cockpit panel stable ID badge ──────────────────────────────────────────── */
.ona-panel-row__pid {
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.55rem;
  color: var(--color-text-muted);
  opacity: 0.6;
  user-select: all;
  letter-spacing: 0.02em;
}

/* ── Cockpit panel drag-and-drop ─────────────────────────────────────────────── */
.ona-panel-row__drag {
  cursor: grab;
  color: var(--color-text-muted);
  opacity: 0.5;
  font-size: 0.75rem;
  padding: 0 4px;
  user-select: none;
  flex-shrink: 0;
}

.ona-panel-row__drag:active { cursor: grabbing; }

.ona-panel-row--drag-over {
  border-color: var(--color-accent);
  background: rgba(79, 110, 247, 0.08);
}

/* ── Attribute search input ──────────────────────────────────────────────────── */
.ona-attr-search {
  width: 100%;
  padding: 4px 8px;
  font-size: var(--text-xs);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text);
  margin-bottom: 4px;
  outline: none;
}

.ona-attr-search:focus {
  border-color: var(--color-accent);
}