/* ================================================================
   chessboard.css — MoriManual Chessboard Assessment Module
   Depends on: ../../css/tokens.css (must be loaded before this file)
   ================================================================ */

/* ── Category color custom properties ───────────────────────────── */
:root {
  --cb-cat-olive: #a3b86c;
  --cb-cat-pink:  #e88ea1;

  --cb-improved-bg:   rgba(60, 255, 208, 0.10);
  --cb-regressed-bg:  rgba(255, 77, 106, 0.10);
  --cb-improved-color: #3cffa0;
  --cb-regressed-color: #ff4d6a;
}

[data-theme="light"] {
  --cb-cat-olive: #6b8a3f;
  --cb-cat-pink:  #c05577;
  --cb-improved-color: #16a34a;
  --cb-regressed-color: #dc2626;
}

/* ── Reset & base ────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: var(--font-body), system-ui, sans-serif;
  background: var(--canvas);
  color: var(--text-primary);
  transition: background var(--ease-normal), color var(--ease-normal);
}

[hidden] { display: none !important; }

/* ── Nav ─────────────────────────────────────────────────────────── */
.cb-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--canvas);
  border-bottom: 1px solid var(--border);
}

.cb-nav__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.cb-nav__back {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color var(--ease-fast);
  flex-shrink: 0;
}
.cb-nav__back:hover { color: var(--mint); }

.cb-nav__brand {
  font-family: var(--font-display), sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.cb-nav__title {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.cb-nav__actions {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-left: auto;
}

/* ── Main layout ─────────────────────────────────────────────────── */
.cb-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* ── Picker bar ──────────────────────────────────────────────────── */
.cb-picker-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.cb-picker-bar__label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.cb-picker-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 360px;
}

.cb-picker__input {
  width: 100%;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--ease-fast);
}
.cb-picker__input:focus { border-color: var(--mint); }

.cb-picker__clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border: none;
  background: var(--surface-raised);
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--ease-fast), background var(--ease-fast);
}
.cb-picker__clear:hover {
  color: var(--error);
  background: rgba(255, 77, 106, 0.1);
}

.cb-picker__dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  z-index: 200;
  max-height: 240px;
  overflow-y: auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.cb-picker__option {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: baseline;
  gap: 8px;
  transition: background var(--ease-fast);
}
.cb-picker__option:hover,
.cb-picker__option--focused {
  background: var(--mint-subtle);
  color: var(--mint);
}

.cb-picker__meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.cb-picker__empty {
  padding: 10px 12px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.cb-picker__option--add {
  border-top: 1px solid var(--border);
  color: var(--mint);
}
.cb-picker__option--add:hover {
  background: var(--mint-subtle);
}

/* ── New patient inline form ──────────────────────────────────── */
.cb-new-patient-form {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cb-new-patient-form__input {
  width: 100%;
  padding: 8px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--ease-fast);
}
.cb-new-patient-form__input:focus {
  border-color: var(--mint);
}

.cb-new-patient-form__actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 4px;
}

/* ── Client settings (collapsible on board) ────────────────────── */
.cb-overrides {
  margin-bottom: 12px;
}

.cb-overrides__summary {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 0;
  background: none;
  border: none;
  transition: color var(--ease-fast);
  user-select: none;
  list-style: none;
}
.cb-overrides__summary::-webkit-details-marker { display: none; }
.cb-overrides__summary::before {
  content: '▸';
  display: inline-block;
  margin-right: 4px;
  transition: transform 200ms ease;
}
.cb-overrides[open] .cb-overrides__summary::before {
  transform: rotate(90deg);
}
.cb-overrides__summary:hover {
  color: var(--text-secondary);
}

.cb-overrides__content {
  padding: 8px 0 4px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.cb-overrides__item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.cb-overrides__toggle {
  width: 13px;
  height: 13px;
  accent-color: var(--mint);
  cursor: pointer;
}

/* ── Empty state ─────────────────────────────────────────────────── */
.cb-empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-secondary);
}

.cb-empty-state__icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 16px;
}

.cb-empty-state__text {
  font-size: 0.95rem;
  line-height: 1.6;
}

.cb-no-sessions {
  padding: 24px 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ── Session rows ───────────────────────────────────────────────── */
.cb-sessions-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cb-session {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.cb-session__header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
  cursor: pointer;
  user-select: none;
  transition: background var(--ease-fast);
}
.cb-session__header:hover {
  background: var(--surface-raised);
}

.cb-session__date-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cb-session__date-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.cb-session__meta-tag {
  font-size: 0.72rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.cb-session__date-input {
  padding: 4px 8px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono), monospace;
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--ease-fast);
}
.cb-session__date-input:focus { border-color: var(--mint); }

.cb-session__chevron {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: transform 200ms ease;
}
.cb-session--collapsed .cb-session__chevron {
  transform: rotate(-90deg);
}

.cb-session--today {
  border-color: var(--mint);
  border-width: 2px;
}
.cb-session--today .cb-session__header {
  background: var(--mint-subtle);
}

.cb-session__actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.cb-session__body {
  overflow: hidden;
  transition: max-height 300ms ease;
}

.cb-session--collapsed .cb-session__body {
  max-height: 0 !important;
  border-top: none;
}

/* ── Horizontal card strip ──────────────────────────────────────── */
.cb-strip {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  padding: 16px;
  gap: 0;
  align-items: stretch;
}

/* Sticky test-name column (legacy — unused, labels are now inline per card) */
.cb-strip__tests { display: none; }

/* ── Value card (Initial / Retest N) ────────────────────────────── */
.cb-card {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  min-width: 200px;
  border-right: 1px solid var(--border);
}
.cb-card:last-of-type { border-right: none; }

.cb-card__header {
  height: 52px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 4px 0 0;
}

.cb-card__title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
}

.cb-card__title {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: 2px;
}

.cb-card__delete-btn {
  position: absolute;
  right: 2px;
  top: -2px;
  width: 18px;
  height: 18px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--ease-fast), background var(--ease-fast);
  opacity: 0.5;
}
.cb-card__delete-btn:hover {
  opacity: 1;
  color: var(--error);
  background: rgba(255, 77, 106, 0.1);
}

.cb-card__sides {
  display: flex;
}

.cb-card__label-spacer {
  flex: 1 1 auto;
  min-width: 0;
}

.cb-card__side-label {
  flex: 0 0 52px;
  text-align: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 2px 0;
}

/* Card body rows */
.cb-card__row {
  height: 36px;
  display: flex;
  align-items: center;
}

/* Inline test name label (always visible) */
.cb-card__label {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0 8px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cb-card__label--olive { color: var(--cb-cat-olive); }
.cb-card__label--pink  { color: var(--cb-cat-pink); }

.cb-card__cell {
  flex: 0 0 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  position: relative;
}

.cb-card__cell--merged {
  flex: 0 0 104px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
}

.cb-input--merged {
  width: 104px;
}

.cb-card__cell--improved {
  background: var(--cb-improved-bg);
}
.cb-card__cell--regressed {
  background: var(--cb-regressed-bg);
}

/* Comparison arrow indicators */
.cb-card__arrow {
  position: absolute;
  top: 2px;
  right: 2px;
  font-size: 0.55rem;
  line-height: 1;
  pointer-events: none;
}
.cb-card__arrow--up {
  color: var(--cb-improved-color);
}
.cb-card__arrow--down {
  color: var(--cb-regressed-color);
}

/* ── Intervention divider ───────────────────────────────────────── */
.cb-intervention {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  width: auto;
  border-left: 1px dashed var(--border);
  border-right: 1px dashed var(--border);
  background: var(--surface-overlay, var(--surface-raised));
}


.cb-intervention__body {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cb-intervention__input {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  width: auto;
  min-width: 36px;
  height: 100%;
  padding: 8px 4px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.72rem;
  outline: none;
  text-align: center;
  transition: border-color var(--ease-fast), color var(--ease-fast);
}
.cb-intervention__input::placeholder { color: var(--text-secondary); opacity: 0.4; }
.cb-intervention__input:hover {
  border-color: var(--border);
}
.cb-intervention__input:focus {
  border-color: var(--mint);
  color: var(--text-primary);
  background: var(--surface);
}

/* ── Drag-to-reorder ───────────────────────────────────────────── */
.cb-drag-handle {
  cursor: grab;
  user-select: none;
  touch-action: none;
  font-size: 0.7rem;
  letter-spacing: -1px;
  color: var(--text-muted);
  opacity: 0.5;
  transition: opacity var(--ease-fast), color var(--ease-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
}
.cb-drag-handle:hover {
  opacity: 1;
  color: var(--mint);
}
.cb-drag-handle:active {
  cursor: grabbing;
}

.cb-intervention .cb-drag-handle {
  position: absolute;
  top: 2px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6rem;
  padding: 1px 4px;
}
.cb-intervention {
  position: relative;
}

.cb-drag-handle--card {
  position: absolute;
  left: 2px;
  top: 0;
  font-size: 0.6rem;
  padding: 1px 3px;
}

.cb-drag-handle--intv {
  flex-shrink: 0;
  padding: 6px 4px;
  font-size: 0.8rem;
}

.cb-drag-ghost {
  position: fixed;
  z-index: 10000;
  pointer-events: none;
  opacity: 0.85;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
  display: flex;
}

.cb-drag-ghost--intv {
  display: flex;
  align-items: flex-start;
  padding: 6px 10px;
  gap: 10px;
  background: var(--surface);
}

.cb-drag-placeholder {
  background: var(--mint-subtle, rgba(60, 255, 208, 0.08));
  border: 2px dashed var(--mint);
  border-radius: 8px;
  flex-shrink: 0;
}

.cb-drag-placeholder--intv {
  width: 100%;
  border-radius: var(--radius-sm);
  margin: 4px 0;
}

/* ── Ghost "add retest" card ────────────────────────────────────── */
.cb-add-card {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  border: 2px dashed var(--border);
  border-radius: 8px;
  margin-left: 12px;
  cursor: pointer;
  transition: border-color var(--ease-fast), background var(--ease-fast);
}
.cb-add-card:hover {
  border-color: var(--mint);
  background: var(--mint-subtle, rgba(60, 255, 208, 0.05));
}

.cb-add-card__icon {
  font-size: 1.4rem;
  color: var(--text-secondary);
  transition: color var(--ease-fast);
}
.cb-add-card:hover .cb-add-card__icon {
  color: var(--mint);
}

.cb-add-card__label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  transition: color var(--ease-fast);
}
.cb-add-card:hover .cb-add-card__label {
  color: var(--mint);
}

/* ── "Next" button (per-card, mobile only) ─────────────────────── */
.cb-card__next-btn {
  display: none;
  width: 100%;
  padding: 8px 0;
  margin-top: 4px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  touch-action: manipulation;
  transition: border-color var(--ease-fast), color var(--ease-fast);
}
.cb-card__next-btn:active {
  border-color: var(--mint);
  color: var(--mint);
}
@media (pointer: coarse) {
  .cb-card__next-btn { display: block; }
}

/* ── Collapsible sections within a session ────────────────────── */
.cb-section {
  border-top: 1px solid var(--border);
}

.cb-section__toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  cursor: pointer;
  user-select: none;
  transition: background var(--ease-fast);
}
.cb-section__toggle:hover {
  background: var(--surface-raised);
}

.cb-section__chevron {
  font-size: 0.65rem;
  color: var(--text-secondary);
  transition: transform 200ms ease;
}
.cb-section--collapsed .cb-section__chevron {
  transform: rotate(-90deg);
}

.cb-section__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.cb-section__content {
  padding: 0 16px 16px;
}
.cb-section__content:has(.cb-strip) {
  padding-left: 0;
  padding-right: 0;
}
.cb-section--collapsed .cb-section__content {
  display: none;
}

.cb-section__empty {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 0;
}

/* ── Textarea (Plan / Notes / Intervention notes) ─────────────── */
.cb-session__textarea,
.cb-intv-row__notes {
  width: 100%;
  resize: vertical;
  min-height: 48px;
  padding: 8px 10px;
  background: var(--surface-raised);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  line-height: 1.4;
  outline: none;
  transition: border-color var(--ease-fast);
}
.cb-session__textarea:focus,
.cb-intv-row__notes:focus {
  border-color: var(--mint);
  background: var(--surface);
}

/* ── Intervention rows ─────────────────────────────────────────── */
.cb-intv-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
}
.cb-intv-row + .cb-intv-row {
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.cb-intv-row__label {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-top: 6px;
  min-width: 32px;
}

.cb-intv-row__name {
  flex: 1;
  min-width: 0;
  padding: 6px 10px;
  background: var(--surface-raised);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--ease-fast);
}
.cb-intv-row__name:focus {
  border-color: var(--mint);
  background: var(--surface);
}

.cb-intv-row__notes {
  flex: 1;
  min-width: 0;
  min-height: 32px;
}

@media (max-width: 480px) {
  .cb-intv-row { flex-wrap: wrap; }
  .cb-intv-row__name,
  .cb-intv-row__notes { width: 100%; flex: none; }
}

/* ── Inputs ──────────────────────────────────────────────────────── */
.cb-input--number,
.cb-input--select {
  width: 52px;
  padding: 4px 2px;
  background: var(--surface-raised);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono), monospace;
  font-size: 0.82rem;
  text-align: center;
  outline: none;
  transition: border-color var(--ease-fast), background var(--ease-fast);
  -moz-appearance: textfield;
}
.cb-input--number::-webkit-outer-spin-button,
.cb-input--number::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.cb-input--number:focus,
.cb-input--select:focus {
  border-color: var(--mint);
  background: var(--surface);
}
.cb-input--select {
  cursor: pointer;
  width: 56px;
  padding-right: 2px;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.cb-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease-fast), box-shadow var(--ease-fast), transform var(--ease-fast);
  white-space: nowrap;
}
.cb-btn:active { transform: translateY(1px); }

.cb-btn--primary {
  background: var(--mint);
  color: var(--text-inverted);
}
.cb-btn--primary:hover { background: var(--mint-dim); }

.cb-btn--secondary {
  background: var(--surface-raised);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.cb-btn--secondary:hover { border-color: var(--mint); color: var(--mint); }

.cb-btn--danger {
  background: transparent;
  color: var(--error);
  border: 1px solid var(--error);
}
.cb-btn--danger:hover { background: rgba(255, 77, 106, 0.1); }

.cb-btn--sm {
  padding: 5px 10px;
  font-size: 0.8rem;
}

/* Theme toggle / sign-out */
.cb-btn--ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 10px;
  font-size: 0.8rem;
  border-radius: 6px;
}
.cb-btn--ghost:hover { border-color: var(--mint); color: var(--mint); }

/* ── Toast ───────────────────────────────────────────────────────── */
.cb-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-raised);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 10px 20px;
  font-size: 0.875rem;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms ease, transform 200ms ease;
  white-space: nowrap;
}
.cb-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.cb-toast--error {
  border-color: var(--error);
  color: var(--error);
}

/* ── Auth overlay ────────────────────────────────────────────────── */
#cb-auth-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--canvas);
  z-index: 300;
}

.cb-auth-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 40px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 360px;
}

.cb-auth-card__logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
}

.cb-auth-card__title {
  font-family: var(--font-display), sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.cb-auth-card__subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
}

.btn-google-signin {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: #fff;
  border: 1px solid #dadce0;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #3c4043;
  cursor: pointer;
  transition: box-shadow var(--ease-fast);
  width: 100%;
  justify-content: center;
}
.btn-google-signin:hover { box-shadow: 0 1px 6px rgba(0,0,0,0.15); }

.cb-auth-error {
  font-size: 0.8rem;
  color: var(--error);
  text-align: center;
}

/* ── Mobile menu ─────────────────────────────────────────────────── */
.cb-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
}
.cb-nav__hamburger span {
  display: block;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform 150ms, opacity 150ms;
}
.cb-nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.cb-nav__hamburger.open span:nth-child(2) { opacity: 0; }
.cb-nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.cb-nav__mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--canvas);
  border-top: 1px solid var(--border);
  padding: 12px 24px 16px;
  gap: 4px;
}
.cb-nav__mobile-menu.open { display: flex; }

.cb-nav__mobile-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--ease-fast);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  width: 100%;
}
.cb-nav__mobile-link:last-child { border-bottom: none; }
.cb-nav__mobile-link:hover { color: var(--mint); }

/* ── Settings view ───────────────────────────────────────────────── */
#cb-settings-view {
  max-width: 720px;
}

.cb-settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 12px;
}

.cb-settings-title {
  font-family: var(--font-display), sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.cb-settings-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 20px 16px;
  margin-bottom: 24px;
}

.cb-settings-section-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.cb-settings-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  margin-top: -8px;
}

.cb-settings-test-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
}

.cb-settings-test-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  transition: background var(--ease-fast);
}
.cb-settings-test-row:hover {
  background: var(--surface-raised);
}

.cb-settings-test-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-primary);
  flex: 1;
  cursor: pointer;
  min-width: 0;
}

.cb-settings-toggle {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--mint);
  cursor: pointer;
}

.cb-settings-name-input {
  flex: 1;
  padding: 3px 8px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  outline: none;
  min-width: 0;
  transition: border-color var(--ease-fast);
}
.cb-settings-name-input:focus { border-color: var(--mint); }

.cb-settings-dir-select {
  padding: 4px 8px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  outline: none;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color var(--ease-fast);
}
.cb-settings-dir-select:focus { border-color: var(--mint); }

.cb-settings-add-btn {
  margin-top: 4px;
}

/* ── Section order rows ───────────────────────────────────────── */
.cb-section-order-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.cb-section-order-row .cb-settings-test-label {
  flex: 1;
  cursor: default;
}

/* ── All-sessions view ──────────────────────────────────────────── */
.cb-all-sessions__group {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color var(--ease-fast), background var(--ease-fast);
}
.cb-all-sessions__group:hover {
  border-color: var(--mint);
}
.cb-all-sessions__group:active {
  background: var(--surface);
  transform: scale(0.98);
  transition: transform 100ms ease;
}
.cb-all-sessions__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.cb-all-sessions__meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── Responsive ──────────────────────────────────────────────────── */
@supports (height: 100dvh) {
  .cb-main { min-height: 100dvh; }
}

@media (max-width: 768px) {
  .cb-nav__actions .cb-btn--ghost:not(.cb-btn--hamburger-trigger) { display: none; }
  .cb-nav__hamburger { display: flex; }

  .cb-main { padding: 24px 12px 64px; }

  .cb-picker-bar { margin-bottom: 16px; }
  .cb-picker-bar__label { display: none; }
  .cb-picker-wrap { max-width: 100%; }

  .cb-strip { padding: 12px; gap: 0; }

  .cb-card__row { min-height: 44px; }
  .cb-card__cell { flex: 0 0 44px; }
  .cb-card__cell--merged { flex: 0 0 80px; }
  .cb-input--number,
  .cb-input--select {
    width: 44px;
    min-height: 44px;
    min-width: 44px;
    font-size: 16px;
    padding: 8px 4px;
  }
  .cb-intervention__input { font-size: 16px; min-height: 44px; }

  .cb-session__textarea,
  .cb-intv-row__name,
  .cb-intv-row__notes { font-size: 16px; }

  .cb-section__toggle { padding: 12px 12px; }
  .cb-section__content { padding: 0 12px 12px; }

  .cb-card { min-width: 180px; }
  .cb-intervention { min-width: 40px; }
  .cb-card__label { font-size: 0.72rem; padding: 0 6px; }
  .cb-card__side-label { flex: 0 0 44px; }
  .cb-card__label-spacer { flex: 1 1 auto; }

  .cb-session__header { padding: 10px 12px; }

  .cb-settings-test-row { flex-wrap: wrap; gap: 8px; }
  .cb-settings-dir-select { font-size: 0.75rem; }

  .cb-input--number,
  .cb-input--select,
  .cb-add-card,
  .cb-session__header {
    touch-action: manipulation;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .cb-input--number { width: 48px; font-size: 14px; }
  .cb-input--select { width: 52px; font-size: 14px; }
  .cb-card__row { min-height: 40px; }
  .cb-card { min-width: 200px; }
}

@media (max-width: 480px) {
  .cb-card { min-width: 160px; }
  .cb-input--number { width: 40px; padding: 4px 1px; }
  .cb-add-card { min-width: 44px; }
}

/* ── Focus Mode ──────────────────────────────────────────────────── */

/* Focus bar and dots are only in the DOM during focus mode — no hide/show needed */
.cb-focus-bar { display: flex; }
.cb-focus-dots { display: flex; }

/* Strip in focus mode: full-width snap scroll */
.cb-strip.cb-focus-mode {
  scroll-snap-type: x mandatory;
  padding: 0;
}

/* Each card becomes a full-width snap target */
.cb-focus-mode .cb-card {
  scroll-snap-align: start;
  min-width: 100%;
  flex-shrink: 0;
  padding: 16px 12px;
  overflow-y: auto;
  border-right: none;
  align-items: center;
}

/* Hide elements that are not needed in focus mode */
.cb-focus-mode .cb-add-card,
.cb-focus-mode .cb-intervention { display: none; }

/* Hide the per-card header — the overlay bar replaces it */
.cb-focus-mode .cb-card__header { display: none; }

/* Touch-friendly row height in focus — max-width keeps label near values */
.cb-focus-mode .cb-card__row { height: 44px; width: 100%; max-width: min(400px, 85vw); }

/* Enlarge label text in focus mode */
.cb-focus-mode .cb-card__label { font-size: 0.8125rem; }

/* Wider cells in focus mode */
.cb-focus-mode .cb-card__cell { flex: 0 0 64px; }
.cb-focus-mode .cb-card__cell--merged { flex: 0 0 80px; }

/* Larger, mono values in focus mode */
.cb-focus-mode .cb-input--number {
  font-size: 16px;
  font-family: var(--font-mono);
  width: 56px;
}

/* Hide "Next" button in focus mode — swipe navigates cards */
.cb-focus-mode .cb-card__next-btn { display: none !important; }

/* Focus bar — overlay above the strip */
.cb-focus-bar {
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.cb-focus-bar__exit {
  border: 1px solid var(--border);
  background: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--ease-fast), color var(--ease-fast);
}
.cb-focus-bar__exit:hover {
  border-color: var(--mint);
  color: var(--mint);
}

.cb-focus-bar__title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.cb-focus-bar__counter {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Dot indicators below the strip */
.cb-focus-dots {
  justify-content: center;
  gap: 6px;
  padding: 12px 0;
}

.cb-focus-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background var(--ease-fast);
}
.cb-focus-dot--active { background: var(--mint); }

/* Focus button in the section toggle bar */
.cb-focus-btn {
  font-size: 0.72rem;
  padding: 4px 10px;
  margin-left: auto;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  transition: border-color var(--ease-fast), color var(--ease-fast);
}
.cb-focus-btn:hover {
  border-color: var(--mint);
  color: var(--mint);
}

/* ── Last-saved indicator ──────────────────────────────────────── */
.cb-last-saved {
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-family: var(--font-mono), monospace;
  white-space: nowrap;
}

/* ── Offline banner ────────────────────────────────────────────── */
.cb-offline-banner {
  background: var(--error);
  color: #fff;
  text-align: center;
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

/* ── Loading indicator ─────────────────────────────────────────── */
.cb-loading-indicator {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 48px 0;
}

.cb-loading-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-secondary);
  animation: cb-pulse 1.2s ease-in-out infinite;
}
.cb-loading-dot:nth-child(2) { animation-delay: 0.2s; }
.cb-loading-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes cb-pulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* ── Reference cheatsheet overlay ─────────────────────────────────── */
.cb-reference-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.cb-reference-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 720px;
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

.cb-reference-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.cb-reference-panel__title {
  font-family: var(--font-display), sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.cb-reference-panel__body {
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  -webkit-overflow-scrolling: touch;
}

.cb-ref-section__title {
  font-family: var(--font-display), sans-serif;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}

.cb-ref-list {
  list-style: disc;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.cb-ref-flowchart {
  list-style: none;
  padding: 0;
  counter-reset: flowchart;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.88rem;
  line-height: 1.5;
}

.cb-ref-flowchart > li {
  counter-increment: flowchart;
  padding-left: 32px;
  position: relative;
}

.cb-ref-flowchart > li::before {
  content: counter(flowchart);
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--canvas);
  font-weight: 700;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cb-ref-flowchart > li strong {
  color: var(--text-primary);
}

.cb-ref-flowchart > li ul {
  list-style: none;
  padding-left: 0;
  margin-top: 4px;
}

.cb-ref-flowchart > li ul li {
  color: var(--text-secondary);
  padding-left: 14px;
  position: relative;
}

.cb-ref-flowchart > li ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--text-tertiary);
}

/* Reference table */
.cb-ref-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.cb-ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  line-height: 1.4;
}

.cb-ref-table th {
  background: var(--border);
  padding: 8px 12px;
  text-align: center;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.cb-ref-table th:first-child {
  text-align: left;
}

.cb-ref-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.cb-ref-table td:first-child {
  text-align: left;
  font-weight: 500;
}

.cb-ref-table__group-header td {
  font-weight: 700;
  background: rgba(66, 133, 244, 0.08);
  text-align: left;
}

.cb-ref-table__isa td {
  text-align: center;
  font-style: italic;
  color: var(--text-secondary);
}

.cb-ref-table__row-early td {
  background: rgba(66, 133, 244, 0.05);
}

.cb-ref-table__row-late td {
  background: rgba(76, 175, 80, 0.05);
}

[data-theme="dark"] .cb-ref-table__row-early td {
  background: rgba(66, 133, 244, 0.08);
}

[data-theme="dark"] .cb-ref-table__row-late td {
  background: rgba(76, 175, 80, 0.08);
}

/* Mobile adjustments */
@media (max-width: 480px) {
  .cb-reference-overlay {
    padding: 8px;
    align-items: flex-start;
  }

  .cb-reference-panel {
    max-height: calc(100vh - 16px);
    border-radius: 8px;
  }

  .cb-reference-panel__header {
    padding: 12px 16px;
  }

  .cb-reference-panel__body {
    padding: 16px;
    gap: 20px;
  }

  .cb-ref-section__title {
    font-size: 1rem;
  }

  .cb-ref-list,
  .cb-ref-flowchart {
    font-size: 0.84rem;
  }

  .cb-ref-table {
    font-size: 0.76rem;
  }

  .cb-ref-table th,
  .cb-ref-table td {
    padding: 5px 8px;
  }
}