/**
 * Phase 23.5 R0 — shared component classes.
 * Dual-select: app names + .am-* so screen ports can adopt export markup.
 * Spacing in rules uses the APP step scale (--space-1..6) or non-colliding
 * --space-8… / --am-space-* — never bare --space-2/--space-4 as DS pixels.
 * --border is a colour; borders are written as Npx solid var(--border).
 */

/* [hidden] must beat every author `display` below. Classes that set display
 * and can carry [hidden]: .btn/.am-btn, .field/.am-field, .badge/.am-badge,
 * .modal-backdrop/.am-modal-backdrop, .banner/.am-banner, .empty-state/.am-empty,
 * .spinner/.am-spinner, .spinner-block/.am-spinner--block, .status-text/.am-status,
 * .app-sidebar/.am-sidebar, .app-sidebar-nav/.am-sidebar-nav,
 * .app-sidebar-recents/.am-sidebar-recents, .app-sidebar-account/.am-sidebar-account,
 * .app-sidebar-link/.am-sidebar-link, .app-shell-menu-toggle,
 * .app-shell-drawer-backdrop, .am-sidebar-recent-icon. */
[hidden] {
  display: none !important;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: var(--font-size-body);
  line-height: var(--leading-body);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

.amida-proportional {
  font-variant-numeric: normal;
}

a {
  color: var(--accent-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

/* Wordmark — Manrope webfont only */
.amida-wordmark {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: 38px;
  line-height: 1;
  letter-spacing: -0.03em;
  text-transform: lowercase;
  color: var(--accent);
  font-variant-numeric: normal;
}

.amida-wordmark-inverse {
  color: var(--ink-inverse);
}

.amida-lockup {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.amida-lockup-descriptor {
  font-family: var(--font-ui);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- Buttons ---------- */

.btn,
.am-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-secondary);
  padding: 0 var(--space-5);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  font-family: inherit;
  line-height: var(--leading-tight);
  border-radius: var(--radius-md);
  border: var(--border-width) solid transparent;
  cursor: pointer;
  text-decoration: none;
  box-sizing: border-box;
  white-space: nowrap;
  transition:
    background var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease),
    border-color var(--duration-fast) var(--ease);
}

.am-btn--lg {
  min-height: var(--touch-primary);
  padding: 0 var(--space-6);
}

.am-btn--sm {
  min-height: 36px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-small);
}

.am-btn--block {
  width: 100%;
}

.btn-primary,
.am-btn--primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.btn-primary:hover:not(:disabled):not(.is-disabled):not(.is-busy),
.am-btn--primary:hover:not(:disabled):not(.is-disabled):not(.is-busy) {
  /* Lighten fill; keep label/icon white. Global `a:hover` would otherwise set
   * color to --accent-hover (violet on violet) on primary <a> CTAs — Nuevo
   * presupuesto, collapsed rail +, history empty CTA. */
  background: color-mix(in srgb, var(--accent) 82%, white);
  border-color: color-mix(in srgb, var(--accent) 82%, white);
  color: var(--accent-text);
}

.btn-primary:active:not(:disabled):not(.is-disabled):not(.is-busy),
.am-btn--primary:active:not(:disabled):not(.is-disabled):not(.is-busy) {
  background: var(--accent-active);
  border-color: var(--accent-active);
  color: var(--accent-text);
}

.btn-secondary,
.am-btn--secondary {
  background: var(--surface-raised);
  color: var(--text-primary);
  border-color: var(--line-strong);
}

.btn-secondary:hover:not(:disabled):not(.is-disabled):not(.is-busy),
.am-btn--secondary:hover:not(:disabled):not(.is-disabled):not(.is-busy) {
  background: var(--band);
}

.btn-ghost,
.am-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled):not(.is-disabled):not(.is-busy),
.am-btn--ghost:hover:not(:disabled):not(.is-disabled):not(.is-busy) {
  color: var(--text-primary);
  background: var(--band);
}

.btn-danger,
.am-btn--danger {
  background: var(--surface-raised);
  color: var(--danger);
  border-color: var(--danger-border);
}

.btn-danger:hover:not(:disabled):not(.is-disabled):not(.is-busy),
.am-btn--danger:hover:not(:disabled):not(.is-disabled):not(.is-busy) {
  background: var(--error-wash);
}

/* Busy ≠ disabled. Busy = in-flight label/action; disabled = not clickable. */
.btn.is-busy,
.am-btn.is-busy {
  cursor: progress;
  opacity: 0.85;
  pointer-events: none;
}

.btn:disabled,
.btn.is-disabled,
.btn[aria-disabled="true"],
.am-btn:disabled,
.am-btn.is-disabled,
.am-btn[aria-disabled="true"] {
  pointer-events: none;
  background: var(--disabled-surface);
  border-color: var(--disabled-line);
  color: var(--disabled-ink);
  opacity: 1;
  cursor: not-allowed;
}

.btn-ghost:disabled,
.btn-ghost.is-disabled,
.btn-ghost[aria-disabled="true"],
.am-btn--ghost:disabled,
.am-btn--ghost[aria-disabled="true"] {
  background: transparent;
  border-color: transparent;
}

/* ---------- Inputs ---------- */

.field,
.am-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.field-label,
.am-field-label {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
}

.field-helper,
.am-field-helper {
  font-size: var(--font-size-small);
  color: var(--text-muted);
  line-height: var(--leading-body);
}

.field-error,
.am-field-error {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--danger);
}

.input,
.textarea,
.select,
.am-input,
.am-select,
.am-textarea {
  width: 100%;
  min-height: var(--touch-primary);
  padding: 0 var(--space-3);
  font-size: var(--font-size-body);
  font-family: inherit;
  color: var(--text-primary);
  background: var(--surface-raised);
  border: var(--border-width) solid var(--line-strong);
  border-radius: var(--radius-sm);
  box-sizing: border-box;
}

.textarea,
.am-textarea {
  min-height: calc(var(--space-6) * 3);
  padding: var(--space-2) var(--space-3);
  resize: vertical;
  line-height: var(--leading-body);
}

.input[type="number"],
.am-input--number {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.input::placeholder,
.textarea::placeholder,
.am-input::placeholder,
.am-textarea::placeholder {
  color: var(--text-placeholder);
}

.field.has-error .input,
.field.has-error .textarea,
.field.has-error .select,
.am-field.has-error .am-input,
.am-field.has-error .am-textarea,
.am-field.has-error .am-select {
  border-color: var(--error);
}

.input:focus,
.textarea:focus,
.select:focus,
.am-input:focus,
.am-textarea:focus,
.am-select:focus {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.input:disabled,
.textarea:disabled,
.select:disabled,
.am-input:disabled,
.am-textarea:disabled,
.am-select:disabled {
  background: var(--disabled-surface);
  border-color: var(--disabled-line);
  color: var(--disabled-ink);
  cursor: not-allowed;
}

/* ---------- Cards ---------- */

.card,
.am-card {
  background: var(--surface-raised);
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.am-card--flush {
  padding: 0;
  overflow: hidden;
}

.am-card-title {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-section-heading);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-title);
}

.card-raised {
  box-shadow: var(--shadow-raised); /* none under flat system */
}

/* ---------- Badges ---------- */

.badge,
.am-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--am-space-4);
  padding: var(--am-space-2) var(--space-2);
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
  line-height: var(--leading-tight);
  letter-spacing: 0.02em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  border: var(--border-width) solid transparent;
}

.badge-neutral,
.am-badge--neutral {
  background: var(--band);
  color: var(--text-secondary);
  border-color: var(--border);
}

/* Flagged / needs-review — review orange (was amber) */
.badge-amber,
.am-badge--review {
  background: var(--warning-soft);
  color: var(--warning-text);
  border-color: var(--review-line);
}

/* Industrial / especialista — category magenta (was teal) */
.badge-teal,
.am-badge--category {
  background: var(--industrial-soft);
  color: var(--industrial-text);
  border-color: var(--category-line);
}

.am-badge--saved {
  background: var(--saved-soft);
  border-color: var(--saved-line);
  color: var(--saved-text);
}

.am-badge--error {
  background: var(--error-soft);
  border-color: var(--error-line);
  color: var(--error-text);
}

.am-badge--disabled {
  background: var(--disabled-surface);
  border-color: var(--disabled-line);
  color: var(--disabled-ink);
}

.am-badge--ref {
  font-family: var(--font-mono);
  text-transform: none;
  letter-spacing: 0;
  background: var(--band);
  border-color: var(--border);
  color: var(--text-secondary);
}

.am-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-round);
  flex-shrink: 0;
}

/* ---------- Modal ---------- */

.modal-backdrop,
.am-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--overlay);
}

.modal-panel,
.am-modal {
  width: 100%;
  max-width: 28rem;
  background: var(--surface-raised);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-overlay);
  padding: var(--space-5);
}

.modal-title,
.am-modal-title {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-section-heading);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-title);
  color: var(--text-primary);
}

.modal-body,
.am-modal-body {
  margin: 0 0 var(--space-5);
  font-size: var(--font-size-body);
  line-height: var(--leading-body);
  color: var(--text-secondary);
}

.modal-actions,
.am-modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: flex-end;
}

/* ---------- Banners ---------- */

.banner,
.am-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--border);
  font-size: var(--font-size-body);
  line-height: var(--leading-body);
  color: var(--text-secondary);
  background: var(--surface-raised);
}

.banner-info {
  background: var(--info-soft);
  color: var(--info);
  border-color: var(--accent-line);
}

.banner-warning,
.am-banner--review {
  background: var(--review-wash);
  color: var(--warning-text);
  border-color: var(--review-line);
}

.banner-danger,
.am-banner--error {
  background: var(--error-wash);
  color: var(--danger);
  border-color: var(--error-line);
}

.am-banner--saved {
  background: var(--saved-wash);
}

.am-banner-body {
  flex: 1;
  min-width: 0;
}

.am-banner-title {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.am-banner--error .am-banner-title {
  color: var(--error-text);
}

/* ---------- Status text ---------- */

.status-text,
.am-status {
  display: inline-flex;
  align-items: center;
  gap: var(--am-space-4);
  font-size: var(--font-size-small);
  color: var(--text-muted);
  white-space: nowrap;
}

.status-text.is-saving {
  color: var(--text-secondary);
}

.status-text.is-saved,
.am-status--saved {
  color: var(--saved-text);
  font-weight: var(--font-weight-semibold);
}

.status-text.is-error,
.am-status--error {
  color: var(--danger);
  font-weight: var(--font-weight-semibold);
}

/* ---------- Utilities ---------- */

.visually-hidden,
.amida-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- Page content frame ---------- */

.app-page {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) var(--space-6);
  box-sizing: border-box;
}

.app-page-wide {
  max-width: var(--content-max-width-wide);
}

.app-page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.app-page-header h1 {
  margin: 0 0 var(--space-1);
  font-size: var(--font-size-page-title);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--tracking-title);
  color: var(--text-primary);
}

.app-page-header .app-page-subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--font-size-body);
}

.app-page-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

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

.empty-state,
.am-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-5);
  color: var(--text-secondary);
}

.empty-state-icon,
.am-empty-icon {
  font-size: var(--font-size-page-title);
  line-height: 1;
  color: var(--ink-4);
}

.empty-state-message,
.am-empty-message {
  margin: 0;
  font-size: var(--font-size-body);
  line-height: var(--leading-body);
  max-width: 36ch;
}

.am-empty--inline {
  padding: var(--space-5) var(--space-5);
}

/* ---------- Spinners ---------- */

.spinner,
.am-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: var(--radius-round);
  animation: app-spin 0.7s linear infinite;
  vertical-align: middle;
}

.spinner-block,
.am-spinner--block {
  display: block;
  width: 24px;
  height: 24px;
  margin: var(--space-5) auto;
}

.am-spinner--lg {
  width: 24px;
  height: 24px;
}

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

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

/* ---------- App shell / sidebar ---------- */

/*
 * Layout is reserved from first paint via body.app-shell in the HTML.
 * Behaviour unchanged: recents, active, app-guard-pending, collapse/drawer.
 * Dual-select .am-sidebar* for export markup.
 *
 * Collapsed rail = icons + purple "+" for Nuevo (NOT DS hide-all).
 * DS `.is-collapsed > *:not(.am-sidebar-top) { display:none }` leaves only the
 * expand control — that strips fast navigation, which is the point of the rail.
 */

body.app-shell {
  --app-sidebar-current-width: var(--sidebar-width-expanded);
}

body.app-shell.has-sidebar-collapsed {
  --app-sidebar-current-width: var(--sidebar-width-collapsed);
}

body.app-shell {
  padding-left: var(--app-sidebar-current-width);
}

body.app-guard-pending {
  visibility: hidden;
}

body.app-shell .sticky-bar {
  left: var(--app-sidebar-current-width);
  right: 0;
  width: auto;
}

.app-sidebar,
.am-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  width: var(--app-sidebar-current-width);
  height: 100vh;
  height: 100dvh;
  padding: var(--space-2);
  background: var(--surface-raised);
  border-right: var(--border-width) solid var(--border);
  box-sizing: border-box;
  overflow: hidden;
  flex-shrink: 0;
}

.app-sidebar-new {
  width: 100%;
  margin-bottom: var(--space-2);
  flex-shrink: 0;
}

.app-sidebar-new .btn,
.app-sidebar-new .am-btn {
  width: 100%;
  gap: var(--space-2);
}

.app-sidebar-new-icon {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.app-sidebar-new-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.75;
}

.app-sidebar-nav,
.am-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--am-space-2);
  flex-shrink: 0;
}

.app-sidebar-link,
.am-sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--touch-secondary);
  padding: 0 var(--space-2);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  background: transparent;
  border: none;
  width: 100%;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  box-sizing: border-box;
}

.app-sidebar-link:hover,
.app-sidebar-link.is-active,
.am-sidebar-link:hover,
.am-sidebar-link.is-active {
  background: var(--band);
  color: var(--text-primary);
}

.app-sidebar-link.is-disabled,
.app-sidebar-link[aria-disabled="true"],
.am-sidebar-link.is-disabled,
.am-sidebar-link[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.5;
  cursor: not-allowed;
}

.app-sidebar-nav-error {
  margin: var(--space-2) 0 0;
  padding: 0 var(--space-2);
  font-size: var(--font-size-micro);
  color: var(--danger);
}

.app-sidebar-link-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  color: inherit;
}

.app-sidebar-link-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.75;
}

.app-sidebar-link-label,
.am-sidebar-link-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-sidebar-recents,
.am-sidebar-recents {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: var(--space-5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.app-sidebar-recents-heading,
.am-sidebar-heading {
  margin: 0 0 var(--am-space-4);
  padding: 0 var(--space-2);
  font-size: var(--text-label);
  font-weight: var(--font-weight-semibold);
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
}

.app-sidebar-recents-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  flex: 1 1 auto;
}

.app-sidebar-recent-link,
.am-sidebar-recent {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--touch-secondary);
  padding: 0 var(--space-2);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-meta);
  overflow: hidden;
}

.app-sidebar-recent-link:hover,
.app-sidebar-recent-link.is-active,
.am-sidebar-recent:hover,
.am-sidebar-recent.is-active {
  background: var(--band);
  color: var(--text-primary);
}

.am-sidebar-recent-icon {
  display: flex;
  flex-shrink: 0;
  color: var(--ink-4);
}

.am-sidebar-recent-icon svg {
  width: 14px;
  height: 14px;
  stroke-width: 2;
}

.am-sidebar-recent:hover .am-sidebar-recent-icon,
.am-sidebar-recent.is-active .am-sidebar-recent-icon,
.app-sidebar-recent-link:hover .am-sidebar-recent-icon,
.app-sidebar-recent-link.is-active .am-sidebar-recent-icon {
  color: var(--ink-3);
}

.app-sidebar-recent-name,
.am-sidebar-recent-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: normal;
}

.app-sidebar-recent-name.is-placeholder,
.am-sidebar-recent-name.is-placeholder {
  color: var(--ink-4);
  font-style: italic;
}

.app-sidebar-recent-ref {
  font-family: var(--font-mono);
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
}

.app-sidebar-account,
.am-sidebar-account {
  flex-shrink: 0;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--border-width) solid var(--border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.app-sidebar-email,
.am-sidebar-email {
  padding: 0 var(--space-2) var(--am-space-4);
  font-size: var(--text-meta);
  color: var(--ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* GL-4 — Ayuda dialog body (shell chrome; reuses .modal-backdrop / .am-modal) */
.amida-help-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.amida-help-line {
  margin: 0;
}

.amida-help-link {
  color: var(--accent);
  text-decoration: none;
}

.amida-help-link:hover {
  text-decoration: underline;
}

/* Icon button — shared shell chrome (collapse control); history also dual-selects */
.am-iconbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-secondary);
  height: var(--touch-secondary);
  padding: 0;
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  flex-shrink: 0;
  box-sizing: border-box;
  transition:
    background var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease);
}

.am-iconbtn:hover {
  background: var(--band);
  color: var(--ink);
}

.am-iconbtn svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.75;
}

/*
 * Top row: wordmark left + panel-left right, same content width as the CTA
 * below (sidebar padding only — edges align with Nuevo).
 */
.am-sidebar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  box-sizing: border-box;
  min-height: var(--touch-secondary);
  margin-bottom: var(--space-2);
  flex-shrink: 0;
}

.app-sidebar-wordmark.amida-wordmark {
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
  /* Slight inset from the sidebar edge — breathing room, not centred. */
  padding-left: var(--am-space-4, 4px);
}

.app-sidebar-collapse-toggle {
  flex-shrink: 0;
  margin: 0;
}

/* Collapsed rail — icons + purple + (NOT DS hide-all) */
body.app-shell.has-sidebar-collapsed .app-sidebar-link-label,
body.app-shell.has-sidebar-collapsed .am-sidebar-link-label,
body.app-shell.has-sidebar-collapsed .app-sidebar-recents,
body.app-shell.has-sidebar-collapsed .am-sidebar-recents,
body.app-shell.has-sidebar-collapsed .app-sidebar-email,
body.app-shell.has-sidebar-collapsed .am-sidebar-email,
body.app-shell.has-sidebar-collapsed .app-sidebar-new .btn-label,
body.app-shell.has-sidebar-collapsed .app-sidebar-wordmark {
  display: none;
}

body.app-shell.has-sidebar-collapsed .am-sidebar-top {
  justify-content: center;
}

body.app-shell.has-sidebar-collapsed .app-sidebar-new .btn,
body.app-shell.has-sidebar-collapsed .app-sidebar-new .am-btn {
  width: var(--touch-secondary);
  min-width: var(--touch-secondary);
  height: var(--touch-secondary);
  min-height: var(--touch-secondary);
  padding: 0;
  margin-left: auto;
  margin-right: auto;
}

body.app-shell.has-sidebar-collapsed .app-sidebar-link,
body.app-shell.has-sidebar-collapsed .am-sidebar-link {
  justify-content: center;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

body.app-shell.has-sidebar-collapsed .app-sidebar-account .app-sidebar-link,
body.app-shell.has-sidebar-collapsed .am-sidebar-account .am-sidebar-link {
  justify-content: center;
}

/* Drawer toggle (mobile) — hidden on desktop */
.app-shell-menu-toggle {
  display: none;
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 220;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--border);
  background: var(--surface-raised);
  color: var(--text-primary);
  box-shadow: var(--shadow-overlay);
  cursor: pointer;
  font-size: var(--font-size-body);
  line-height: 1;
}

.app-shell-drawer-backdrop {
  display: none;
}

@media (max-width: 768px) {
  body.app-shell,
  body.app-shell.has-sidebar-collapsed {
    padding-left: 0;
    --app-sidebar-current-width: 0px;
  }

  body.app-shell .sticky-bar {
    left: 0;
  }

  .app-shell-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* Clear the fixed hamburger so page titles stay fully visible. */
  body.app-shell .app-page {
    padding-left: calc(var(--space-3) + 44px + var(--space-3));
  }

  .app-sidebar,
  .am-sidebar {
    transform: translateX(-105%);
    transition: transform var(--duration-base) var(--ease);
    width: var(--sidebar-width-expanded);
    box-shadow: var(--shadow-overlay);
  }

  body.app-shell.has-drawer-open .app-sidebar,
  body.app-shell.has-drawer-open .am-sidebar {
    transform: translateX(0);
  }

  .app-shell-drawer-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: var(--z-drawer-backdrop);
    background: var(--overlay);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease);
  }

  body.app-shell.has-drawer-open .app-shell-drawer-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  body.app-shell.has-sidebar-collapsed .app-sidebar-link-label,
  body.app-shell.has-sidebar-collapsed .am-sidebar-link-label,
  body.app-shell.has-sidebar-collapsed .app-sidebar-recents,
  body.app-shell.has-sidebar-collapsed .am-sidebar-recents,
  body.app-shell.has-sidebar-collapsed .app-sidebar-email,
  body.app-shell.has-sidebar-collapsed .am-sidebar-email,
  body.app-shell.has-sidebar-collapsed .app-sidebar-new .btn-label,
  body.app-shell.has-sidebar-collapsed .app-sidebar-wordmark {
    display: initial;
  }

  body.app-shell.has-sidebar-collapsed .app-sidebar-wordmark.amida-wordmark {
    display: inline;
  }

  body.app-shell.has-sidebar-collapsed .am-sidebar-top {
    justify-content: space-between;
  }

  body.app-shell.has-sidebar-collapsed .app-sidebar-recents,
  body.app-shell.has-sidebar-collapsed .am-sidebar-recents {
    display: flex;
  }

  body.app-shell.has-sidebar-collapsed .app-sidebar-new .btn,
  body.app-shell.has-sidebar-collapsed .app-sidebar-new .am-btn {
    width: 100%;
    min-width: 0;
    height: auto;
    min-height: var(--touch-secondary);
    padding-left: var(--space-4);
    padding-right: var(--space-4);
    margin-left: 0;
    margin-right: 0;
  }

  body.app-shell.has-sidebar-collapsed .app-sidebar-link,
  body.app-shell.has-sidebar-collapsed .am-sidebar-link {
    justify-content: flex-start;
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
}