/* ==========================================================================
   Component library - Neumorphism

   Interaction rules every component follows:
   - Press feedback is instant and lives on :active (pointer-down), then
     releases softly.
   - Hover effects are limited to devices that can hover.
   - Only transform, opacity, color and shadow change. No layout animation
     except the accordion height.
   - Popups grow out of the element that opened them and leave the same way.
   ========================================================================== */

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

.neu-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  box-shadow: var(--neu-flat);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    color var(--transition-base),
    background-color var(--transition-base);
}

@media (hover: hover) {
  .neu-btn:hover {
    color: var(--accent);
  }
}

.neu-btn:active {
  transform: scale(var(--press-scale));
  box-shadow: var(--neu-pressed);
  transition-duration: var(--duration-fast);
}

.neu-btn:disabled,
.neu-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--neu-flat-sm);
  color: var(--text-secondary);
}

.neu-btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow-distance) var(--shadow-distance) var(--shadow-blur) var(--shadow-dark);
}

.neu-btn-danger {
  background: var(--accent-danger);
  color: var(--bg);
  box-shadow: var(--shadow-distance) var(--shadow-distance) var(--shadow-blur) var(--shadow-dark);
}

@media (hover: hover) {
  .neu-btn-primary:hover {
    background: var(--accent-hover);
    color: var(--accent-contrast);
  }

  .neu-btn-danger:hover {
    color: var(--bg);
    background: color-mix(in srgb, var(--accent-danger) 88%, #000);
  }
}

.neu-btn-primary:active,
.neu-btn-danger:active {
  box-shadow: inset 3px 3px 8px rgb(0 0 0 / 30%);
}

/* Low-emphasis button: no surface until it is pressed. */
.neu-btn-ghost {
  background: transparent;
  box-shadow: none;
  color: var(--text-secondary);
}

.neu-btn-sm {
  min-height: 2.25rem;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.neu-btn-lg {
  min-height: 3.25rem;
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-lg);
}

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

.neu-btn-icon {
  padding: 0;
  width: 2.875rem;
  height: 2.875rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-lg);
}

/* Loading state: label stays in place (no layout jump), spinner on top. */
.neu-btn.loading {
  color: transparent;
  pointer-events: none;
}

.neu-btn.loading::after {
  content: "";
  position: absolute;
  width: 1.1em;
  height: 1.1em;
  border-radius: 50%;
  border: 2px solid var(--text-secondary);
  border-right-color: transparent;
  animation: spin 800ms linear infinite;
}

.neu-btn-primary.loading::after {
  border-color: var(--accent-contrast);
  border-right-color: transparent;
}

/* Buttons joined into one control. */
.neu-btn-group {
  display: inline-flex;
  border-radius: var(--radius-md);
  background: var(--bg);
  box-shadow: var(--neu-flat);
}

.neu-btn-group .neu-btn {
  border-radius: 0;
  box-shadow: none;
}

.neu-btn-group .neu-btn:active,
.neu-btn-group .neu-btn[aria-pressed="true"] {
  box-shadow: var(--neu-pressed);
  color: var(--accent);
}

.neu-btn-group .neu-btn:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.neu-btn-group .neu-btn:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }

.neu-fab {
  position: fixed;
  right: var(--space-6);
  bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
  width: 3.75rem;
  height: 3.75rem;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 10px 24px rgb(0 0 0 / 35%), 6px 6px 14px var(--shadow-dark);
  transition: transform var(--transition-base), background-color var(--transition-base);
  z-index: var(--z-sticky);
}

@media (hover: hover) {
  .neu-fab:hover {
    background: var(--accent-hover);
  }
}

.neu-fab:active {
  transform: scale(0.94);
  transition-duration: var(--duration-fast);
}

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

.neu-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-flat);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.neu-card > :last-child {
  margin-bottom: 0;
}

.neu-card-concave {
  background: linear-gradient(145deg, var(--shadow-dark), var(--bg));
}

.neu-card-convex {
  background: linear-gradient(145deg, var(--bg), var(--shadow-dark));
}

.neu-card-pressed {
  box-shadow: var(--neu-pressed-lg);
}

.neu-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.neu-card-header > * {
  margin-bottom: 0;
}

.neu-card-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* --------------------------------------------------------------------------
   Stat / KPI widget
   -------------------------------------------------------------------------- */

.neu-stat {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-flat);
}

.neu-stat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.25rem;
  height: 3.25rem;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  font-size: 1.4rem;
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  color: var(--accent);
}

.neu-stat-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  line-height: var(--leading-title);
  letter-spacing: var(--tracking-title);
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.neu-stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.neu-stat-trend {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--accent-success);
}

.neu-stat-trend.down {
  color: var(--accent-danger);
}

/* --------------------------------------------------------------------------
   Avatar
   -------------------------------------------------------------------------- */

.neu-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  overflow: hidden;
  font-weight: 700;
  color: var(--accent);
}

.neu-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.neu-avatar-sm { width: 2.25rem; height: 2.25rem; font-size: var(--font-size-xs); }
.neu-avatar-md { width: 3.25rem; height: 3.25rem; font-size: var(--font-size-md); }
.neu-avatar-lg { width: 4.75rem; height: 4.75rem; font-size: var(--font-size-lg); }

.neu-avatar-wrap {
  position: relative;
  display: inline-flex;
}

.neu-avatar-status {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-success);
  box-shadow: 0 0 0 3px var(--bg);
}

/* Overlapping stack of avatars. */
.neu-avatar-group {
  display: inline-flex;
}

.neu-avatar-group .neu-avatar {
  box-shadow: 0 0 0 3px var(--bg), var(--neu-flat-sm);
}

.neu-avatar-group .neu-avatar + .neu-avatar {
  margin-left: -0.75rem;
}

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

.neu-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding-inline: 0.4rem;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: var(--font-size-xs);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  box-shadow: 3px 3px 6px var(--shadow-dark);
}

/* Opt-in attention ring. Use it only for a live, unread status. */
.neu-badge-ping::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-pill);
  background: var(--accent);
  animation: ping 1.6s ease-out infinite;
}

.neu-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent-success);
}

.neu-dot-danger { background: var(--accent-danger); }
.neu-dot-warning { background: var(--accent-warm); }
.neu-dot-muted { background: var(--text-muted); }

/* Opt-in live indicator ("online", "recording"). */
.neu-dot-pulse {
  animation: pulse 1.8s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   Toggle switch
   -------------------------------------------------------------------------- */

.neu-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  user-select: none;
}

.neu-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.neu-switch-track {
  position: relative;
  flex-shrink: 0;
  width: 56px;
  height: 30px;
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  transition: background-color var(--transition-base);
}

.neu-switch input:checked + .neu-switch-track {
  background: var(--accent-soft);
}

.neu-switch input:focus-visible + .neu-switch-track {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.neu-switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--text-muted);
  box-shadow: var(--neu-flat-sm);
  transition: transform var(--transition-base), background-color var(--transition-base);
}

/* The thumb answers the press before the value flips. */
.neu-switch:active .neu-switch-thumb {
  transform: scale(0.9);
  transition-duration: var(--duration-fast);
}

.neu-switch input:checked + .neu-switch-track .neu-switch-thumb {
  transform: translateX(26px);
  background: var(--accent);
}

.neu-switch:active input:checked + .neu-switch-track .neu-switch-thumb {
  transform: translateX(26px) scale(0.9);
}

/* --------------------------------------------------------------------------
   Checkbox / radio
   -------------------------------------------------------------------------- */

.neu-checkbox,
.neu-radio {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  color: var(--text-primary);
  user-select: none;
}

.neu-checkbox input,
.neu-radio input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.neu-checkbox-box,
.neu-radio-dot {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base), background-color var(--transition-base);
}

.neu-checkbox-box { border-radius: var(--radius-sm); }
.neu-radio-dot { border-radius: 50%; }

.neu-checkbox:active .neu-checkbox-box,
.neu-radio:active .neu-radio-dot {
  transform: scale(0.9);
  transition-duration: var(--duration-fast);
}

.neu-checkbox input:checked + .neu-checkbox-box {
  background: var(--accent-soft);
}

.neu-checkbox input:focus-visible + .neu-checkbox-box,
.neu-radio input:focus-visible + .neu-radio-dot {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.neu-checkbox-box::after {
  content: "";
  width: 12px;
  height: 7px;
  margin-top: -3px;
  border-left: 2.5px solid var(--accent);
  border-bottom: 2.5px solid var(--accent);
  opacity: 0;
  transform: rotate(-45deg) scale(0.6);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.neu-checkbox input:checked + .neu-checkbox-box::after {
  opacity: 1;
  transform: rotate(-45deg) scale(1);
}

.neu-radio-dot::after {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transform: scale(0.4);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.neu-radio input:checked + .neu-radio-dot::after {
  opacity: 1;
  transform: scale(1);
}

.neu-checkbox:has(input:disabled),
.neu-radio:has(input:disabled),
.neu-switch:has(input:disabled) {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Segmented control - a radio group with a thumb that slides between the
   options. Pure CSS: put 2 to 5 <label><input type="radio">Text</label>
   children inside.
   -------------------------------------------------------------------------- */

.neu-segmented {
  --count: 2;
  --index: 0;
  position: relative;
  display: inline-grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
}

.neu-segmented::before {
  content: "";
  position: absolute;
  top: var(--space-1);
  bottom: var(--space-1);
  left: var(--space-1);
  width: calc((100% - var(--space-1) * 2) / var(--count));
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  transform: translateX(calc(var(--index) * 100%));
  transition: transform var(--transition-base);
}

.neu-segmented label {
  position: relative;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  transition: color var(--transition-base), transform var(--transition-base);
}

.neu-segmented label:active {
  transform: scale(var(--press-scale));
  transition-duration: var(--duration-fast);
}

.neu-segmented input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.neu-segmented label:has(input:checked) {
  color: var(--accent);
}

.neu-segmented label:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.neu-segmented:has(label:nth-of-type(3)) { --count: 3; }
.neu-segmented:has(label:nth-of-type(4)) { --count: 4; }
.neu-segmented:has(label:nth-of-type(5)) { --count: 5; }

.neu-segmented:has(label:nth-of-type(2) input:checked) { --index: 1; }
.neu-segmented:has(label:nth-of-type(3) input:checked) { --index: 2; }
.neu-segmented:has(label:nth-of-type(4) input:checked) { --index: 3; }
.neu-segmented:has(label:nth-of-type(5) input:checked) { --index: 4; }

/* --------------------------------------------------------------------------
   Range slider
   -------------------------------------------------------------------------- */

.neu-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 10px;
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  cursor: pointer;
}

.neu-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 3px 3px 8px var(--shadow-dark), -2px -2px 6px var(--shadow-light);
  cursor: grab;
  transition: transform var(--transition-base);
}

/* The thumb grows the moment it is grabbed, not on hover. */
.neu-range:active::-webkit-slider-thumb {
  transform: scale(1.2);
  cursor: grabbing;
  transition-duration: var(--duration-fast);
}

.neu-range::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 3px 3px 8px var(--shadow-dark);
  cursor: grab;
  transition: transform var(--transition-base);
}

.neu-range:active::-moz-range-thumb {
  transform: scale(1.2);
  cursor: grabbing;
}

/* --------------------------------------------------------------------------
   Text inputs / textarea / search / field messages
   -------------------------------------------------------------------------- */

.neu-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.neu-field label,
.neu-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.neu-field-hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* Inline validation message. Hidden until the field is marked invalid. */
.neu-field-error {
  display: none;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--accent-danger);
}

.neu-field:has([aria-invalid="true"]) .neu-field-error {
  display: block;
  animation: fadeIn var(--duration-base) var(--ease-out) both;
}

.neu-field:has([aria-invalid="true"]) .neu-field-hint {
  display: none;
}

.neu-input,
.neu-textarea,
.neu-select {
  width: 100%;
  min-height: 2.75rem;
  border: none;
  outline: none;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--font-size-md);
  box-shadow: var(--neu-pressed);
  transition: box-shadow var(--transition-base);
}

.neu-textarea {
  resize: vertical;
  min-height: 6.5rem;
}

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

@media (hover: hover) {
  .neu-input:hover,
  .neu-textarea:hover,
  .neu-select:hover {
    box-shadow: var(--neu-pressed), 0 0 0 3px var(--accent-soft);
  }
}

.neu-input:focus,
.neu-textarea:focus,
.neu-select:focus,
.neu-input:focus-visible,
.neu-textarea:focus-visible {
  outline: none;
  box-shadow: var(--neu-pressed), var(--focus-ring);
}

.neu-input.error,
.neu-textarea.error,
.neu-input[aria-invalid="true"],
.neu-textarea[aria-invalid="true"] {
  box-shadow: var(--neu-pressed), 0 0 0 3px color-mix(in srgb, var(--accent-danger) 45%, transparent);
}

.neu-input:disabled,
.neu-textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.neu-select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%),
    linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
  background-position: calc(100% - 20px) center, calc(100% - 15px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: var(--space-7);
}

/* Input with a leading icon or a trailing unit / button. */
.neu-input-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding-inline: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  color: var(--text-muted);
  transition: box-shadow var(--transition-base);
}

.neu-input-group:focus-within {
  box-shadow: var(--neu-pressed), var(--focus-ring);
}

.neu-input-group input {
  flex: 1;
  min-width: 0;
  padding-block: var(--space-3);
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
}

.neu-search {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  transition: box-shadow var(--transition-base);
}

.neu-search:focus-within {
  box-shadow: var(--neu-pressed), var(--focus-ring);
}

.neu-search:focus-within .icon {
  color: var(--accent);
}

.neu-search input {
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  width: 100%;
}

.neu-search .icon {
  color: var(--text-muted);
  transition: color var(--transition-base);
}

/* --------------------------------------------------------------------------
   Number stepper
   -------------------------------------------------------------------------- */

.neu-stepper {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
}

.neu-stepper button {
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--neu-flat-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), color var(--transition-base);
}

.neu-stepper button:active {
  transform: scale(0.92);
  box-shadow: var(--neu-pressed);
  color: var(--accent);
  transition-duration: var(--duration-fast);
}

.neu-stepper button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.neu-stepper input {
  width: 3rem;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: center;
  -moz-appearance: textfield;
  appearance: textfield;
}

.neu-stepper input::-webkit-outer-spin-button,
.neu-stepper input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* --------------------------------------------------------------------------
   File drop zone
   -------------------------------------------------------------------------- */

.neu-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-6) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-pressed-lg);
  color: var(--text-secondary);
  text-align: center;
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.neu-dropzone input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.neu-dropzone strong {
  color: var(--text-primary);
}

.neu-dropzone-icon {
  font-size: 1.75rem;
}

.neu-dropzone:active {
  transform: scale(0.99);
  transition-duration: var(--duration-fast);
}

.neu-dropzone.dragover,
.neu-dropzone:has(input:focus-visible) {
  box-shadow: var(--neu-pressed-lg), var(--focus-ring);
}

/* --------------------------------------------------------------------------
   Navbar - a translucent floating layer. Content scrolls underneath it.
   -------------------------------------------------------------------------- */

.neu-navbar {
  position: sticky;
  top: var(--space-4);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  border-top: 1px solid var(--material-edge);
  background: var(--material-bg);
  -webkit-backdrop-filter: var(--material-blur);
  backdrop-filter: var(--material-blur);
  box-shadow: var(--neu-flat);
}

.neu-navbar-brand {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: var(--tracking-title);
  color: var(--text-primary);
}

.neu-navbar-brand img {
  margin-right: var(--space-2);
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-sm);
}

.neu-navbar-links {
  display: flex;
  gap: var(--space-5);
}

.neu-navbar-links a {
  position: relative;
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  padding-block: var(--space-1);
  opacity: 0.72;
  transition: color var(--transition-base), opacity var(--transition-base);
}

.neu-navbar-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

@media (hover: hover) {
  .neu-navbar-links a:hover {
    color: var(--accent);
    opacity: 1;
  }

  .neu-navbar-links a:hover::after {
    transform: scaleX(1);
  }
}

.neu-navbar-links a.active,
.neu-navbar-links a[aria-current] {
  color: var(--accent);
  opacity: 1;
}

.neu-navbar-links a.active::after,
.neu-navbar-links a[aria-current]::after {
  transform: scaleX(1);
}

.neu-navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.neu-navbar-toggle {
  display: none;
}

/* Narrow screens: the links collapse into a panel that grows out of the
   menu button and leaves the same way. The panel is solid, because a
   translucent surface must not sit on another translucent surface. */
@media (max-width: 760px) {
  .neu-navbar-toggle {
    display: inline-flex;
  }

  .neu-navbar-links {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    right: 0;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    background: var(--bg);
    box-shadow: var(--neu-float);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.97);
    transform-origin: top right;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .neu-navbar.open .neu-navbar-links {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .neu-navbar-links a {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
  }

  .neu-navbar-links a::after {
    display: none;
  }

  .neu-navbar-links a.active,
  .neu-navbar-links a[aria-current] {
    box-shadow: var(--neu-pressed);
  }
}

/* --------------------------------------------------------------------------
   Sidebar / nav list
   -------------------------------------------------------------------------- */

.neu-sidebar {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-flat);
}

.neu-sidebar ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.neu-sidebar-title {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  color: var(--text-muted);
}

.neu-nav-item a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 600;
  transition: box-shadow var(--transition-base), color var(--transition-base), transform var(--transition-base);
}

@media (hover: hover) {
  .neu-nav-item a:hover {
    color: var(--accent);
  }
}

.neu-nav-item a:active {
  transform: scale(var(--press-scale));
  transition-duration: var(--duration-fast);
}

.neu-nav-item.active a,
.neu-nav-item a[aria-current] {
  color: var(--accent);
  box-shadow: var(--neu-pressed);
}

/* --------------------------------------------------------------------------
   Tabs
   -------------------------------------------------------------------------- */

.neu-tabs-list {
  display: inline-flex;
  max-width: 100%;
  gap: var(--space-2);
  padding: var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  margin-bottom: var(--space-4);
  overflow-x: auto;
  scrollbar-width: none;
}

.neu-tab {
  border: none;
  background: transparent;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-pill);
  font-weight: 600;
  white-space: nowrap;
  color: var(--text-secondary);
  cursor: pointer;
  transition: box-shadow var(--transition-base), color var(--transition-base), transform var(--transition-base);
}

@media (hover: hover) {
  .neu-tab:not(.active):hover {
    color: var(--accent);
  }
}

.neu-tab:active {
  transform: scale(var(--press-scale));
  transition-duration: var(--duration-fast);
}

.neu-tab.active {
  color: var(--accent);
  box-shadow: var(--neu-flat-sm);
}

.neu-tab-panel {
  display: none;
}

.neu-tab-panel.active {
  display: block;
  animation: fadeIn var(--duration-base) var(--ease-out) both;
}

/* --------------------------------------------------------------------------
   Accordion
   -------------------------------------------------------------------------- */

.neu-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.neu-accordion-item {
  border-radius: var(--radius-md);
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
}

.neu-accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: var(--font-size-md);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-base);
}

@media (hover: hover) {
  .neu-accordion-header:hover {
    color: var(--accent);
  }
}

.neu-accordion-header:active {
  color: var(--accent);
}

.neu-accordion-header .chevron {
  transition: transform var(--transition-base), color var(--transition-base);
  color: var(--text-muted);
}

.neu-accordion-item.open .neu-accordion-header .chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

/* Height is the one layout property that animates. It is a transition,
   so a second click reverses it from wherever it currently is. */
.neu-accordion-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-slow);
}

.neu-accordion-item.open .neu-accordion-body {
  grid-template-rows: 1fr;
}

.neu-accordion-body-inner {
  overflow: hidden;
  padding-inline: var(--space-4);
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity var(--transition-base), padding-bottom var(--transition-slow);
}

.neu-accordion-item.open .neu-accordion-body-inner {
  padding-bottom: var(--space-4);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Modal - a blocking task: the surface comes with a dimming scrim.
   js/main.js sets transform-origin to the button that opened it, so the
   modal grows out of its source and shrinks back into it.
   -------------------------------------------------------------------------- */

.neu-modal-overlay {
  position: fixed;
  inset: 0;
  padding: var(--space-4);
  background: var(--scrim);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: var(--z-overlay);
}

.neu-modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.neu-modal {
  width: min(440px, 100%);
  max-height: 100%;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-float);
  padding: var(--space-5);
  transform: scale(0.92);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.neu-modal-overlay.open .neu-modal {
  transform: scale(1);
  opacity: 1;
}

.neu-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: var(--tracking-title);
}

.neu-modal-close {
  flex-shrink: 0;
  border: none;
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1;
  transition: transform var(--transition-base), box-shadow var(--transition-base), color var(--transition-base);
}

@media (hover: hover) {
  .neu-modal-close:hover {
    color: var(--accent-danger);
  }
}

.neu-modal-close:active {
  transform: scale(0.92);
  box-shadow: var(--neu-pressed);
  transition-duration: var(--duration-fast);
}

.neu-modal-footer {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* --------------------------------------------------------------------------
   Bottom sheet - a draggable panel driven by a real spring (js/motion.js).
   It tracks the pointer 1:1, can be grabbed mid-animation, hands the
   release velocity to the spring and rubber-bands past its open position.
   -------------------------------------------------------------------------- */

.neu-sheet-root {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  visibility: hidden;
  pointer-events: none;
}

.neu-sheet-root.open {
  visibility: visible;
  pointer-events: auto;
}

.neu-sheet-scrim {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  opacity: 0;
}

.neu-sheet {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: min(560px, 100%);
  max-height: 85vh;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--bg);
  box-shadow: 0 -12px 40px rgb(0 0 0 / 35%);
  transform: translateY(100%);
  will-change: transform;
}

/* Fills the gap below the sheet while it is rubber-banded upward. */
.neu-sheet::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 50vh;
  background: inherit;
}

.neu-sheet-grip {
  flex-shrink: 0;
  padding: var(--space-3) var(--space-5) var(--space-2);
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.neu-sheet-grip:active {
  cursor: grabbing;
}

.neu-sheet-handle {
  display: block;
  width: 44px;
  height: 5px;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--text-muted);
  transition: transform var(--transition-base), background-color var(--transition-base);
}

.neu-sheet-grip:active .neu-sheet-handle {
  transform: scaleX(1.2);
  background: var(--accent);
  transition-duration: var(--duration-fast);
}

.neu-sheet-title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: var(--tracking-title);
}

.neu-sheet-body {
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-2) var(--space-5) calc(var(--space-5) + env(safe-area-inset-bottom));
}

/* --------------------------------------------------------------------------
   Tooltip
   -------------------------------------------------------------------------- */

.neu-tooltip {
  position: relative;
  cursor: help;
}

.neu-tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) scale(0.92);
  transform-origin: bottom center;
  width: max-content;
  max-width: min(240px, 70vw);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--text-primary);
  color: var(--bg);
  font-size: var(--font-size-xs);
  font-weight: 600;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  pointer-events: none;
  z-index: var(--z-popover);
}

.neu-tooltip:hover::before,
.neu-tooltip:focus-visible::before {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

/* --------------------------------------------------------------------------
   Progress bar + circular / radial progress
   Set the value with style="--value: 55" (0-100). The bar moves with a
   transform, not a width change.
   -------------------------------------------------------------------------- */

.neu-progress {
  width: 100%;
  height: 16px;
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  overflow: hidden;
}

.neu-progress-bar {
  --value: 100;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--accent-hover), var(--accent));
  transform: translateX(calc((var(--value) - 100) * 1%));
  transition: transform var(--duration-slow) var(--ease-out);
}

.neu-progress-bar.striped {
  background-image: repeating-linear-gradient(45deg, rgb(255 255 255 / 22%) 0 10px, transparent 10px 20px),
    linear-gradient(90deg, var(--accent-hover), var(--accent));
  background-size: 40px 40px, 100% 100%;
  animation: stripeMove 1s linear infinite;
}

.neu-progress-success .neu-progress-bar { background: var(--accent-success); }
.neu-progress-danger .neu-progress-bar { background: var(--accent-danger); }

.neu-radial {
  --percent: 0;
  width: 140px;
  height: 140px;
  flex-shrink: 0;
  border-radius: 50%;
  background: conic-gradient(var(--accent) calc(var(--percent) * 3.6deg), var(--shadow-dark) 0);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--neu-flat);
  padding: 10px;
  transition: --percent 900ms var(--ease-out);
}

.neu-radial-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.neu-radial-inner strong {
  font-size: var(--font-size-xl);
  letter-spacing: var(--tracking-title);
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.neu-radial-inner small {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
}

/* --------------------------------------------------------------------------
   Alerts / toasts
   -------------------------------------------------------------------------- */

.neu-alert {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  color: var(--text-primary);
  font-weight: 600;
  border-left: 4px solid var(--accent-info);
}

.neu-alert-success { border-left-color: var(--accent-success); }
.neu-alert-danger { border-left-color: var(--accent-danger); }
.neu-alert-warning { border-left-color: var(--accent-warm); }
.neu-alert-info { border-left-color: var(--accent-info); }

.neu-alert-body {
  flex: 1;
  min-width: 0;
}

.neu-alert-close {
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: var(--font-size-lg);
  line-height: 1;
  cursor: pointer;
  transition: transform var(--transition-base), color var(--transition-base);
}

.neu-alert-close:active {
  transform: scale(0.85);
  color: var(--text-primary);
  transition-duration: var(--duration-fast);
}

/* Toasts slide in from the right edge and leave the same way. Create them
   with showToast() from js/main.js. */
.neu-toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  left: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
  pointer-events: none;
  z-index: var(--z-toast);
}

.neu-toast {
  width: min(340px, 100%);
  box-shadow: var(--neu-float);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(calc(100% + var(--space-5)));
  transition: transform var(--transition-slow), opacity var(--transition-base);
}

.neu-toast.show {
  opacity: 1;
  transform: translateX(0);
}

/* --------------------------------------------------------------------------
   Table
   -------------------------------------------------------------------------- */

.neu-table-wrap {
  /* Contains absolutely positioned children (e.g. .sr-only) of a wide table. */
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-flat);
  padding: var(--space-3);
  overflow-x: auto;
}

.neu-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.neu-table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  white-space: nowrap;
}

.neu-table td {
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  border-top: 1px solid color-mix(in srgb, var(--shadow-dark) 70%, transparent);
  font-variant-numeric: tabular-nums;
}

.neu-table tbody tr {
  transition: background-color var(--transition-fast);
}

@media (hover: hover) {
  .neu-table tbody tr:hover {
    background: color-mix(in srgb, var(--shadow-dark) 25%, transparent);
  }
}

/* Cell that lays an avatar and a name side by side. */
.neu-table-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */

.neu-pagination {
  display: inline-flex;
  gap: var(--space-2);
}

.neu-page-btn {
  min-width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text-secondary);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  box-shadow: var(--neu-flat-sm);
  transition: box-shadow var(--transition-base), color var(--transition-base), transform var(--transition-base);
}

@media (hover: hover) {
  .neu-page-btn:hover {
    color: var(--accent);
  }
}

.neu-page-btn:active {
  transform: scale(0.94);
  box-shadow: var(--neu-pressed);
  transition-duration: var(--duration-fast);
}

.neu-page-btn.active,
.neu-page-btn[aria-current] {
  color: var(--accent);
  box-shadow: var(--neu-pressed);
}

.neu-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Steps - progress through a multi-step flow
   -------------------------------------------------------------------------- */

.neu-steps {
  display: flex;
  gap: var(--space-2);
  counter-reset: step;
}

.neu-steps li {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-muted);
  counter-increment: step;
}

.neu-steps li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  font-variant-numeric: tabular-nums;
}

.neu-steps li:not(:last-child)::after {
  content: "";
  flex: 1;
  height: 3px;
  min-width: var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--shadow-dark);
}

.neu-steps li.done {
  color: var(--text-secondary);
}

.neu-steps li.done::before {
  content: "✓";
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--neu-flat-sm);
}

.neu-steps li.done::after {
  background: var(--accent);
}

.neu-steps li.active,
.neu-steps li[aria-current] {
  color: var(--text-primary);
}

.neu-steps li.active::before,
.neu-steps li[aria-current]::before {
  color: var(--accent);
  box-shadow: var(--neu-flat-sm), var(--focus-ring);
}

@media (max-width: 600px) {
  .neu-steps li span {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Chips / tags
   -------------------------------------------------------------------------- */

.neu-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border: none;
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-secondary);
}

.neu-chip-accent { color: var(--accent); }
.neu-chip-success { color: var(--accent-success); }
.neu-chip-danger { color: var(--accent-danger); }
.neu-chip-warning { color: var(--accent-warm); }
.neu-chip-info { color: var(--accent-info); }

/* A chip written as a <button> is a filter that can be toggled. */
button.neu-chip {
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), color var(--transition-base);
}

button.neu-chip:active {
  transform: scale(0.94);
  transition-duration: var(--duration-fast);
}

button.neu-chip[aria-pressed="true"] {
  color: var(--accent);
  box-shadow: var(--neu-pressed);
}

/* --------------------------------------------------------------------------
   List group (device / scene rows)
   -------------------------------------------------------------------------- */

.neu-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.neu-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--text-primary);
  box-shadow: var(--neu-flat-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}

@media (hover: hover) {
  .neu-list-item:hover {
    box-shadow: var(--neu-flat);
  }

  .neu-list-item:hover .chevron {
    color: var(--accent);
  }
}

.neu-list-item:active {
  transform: scale(0.985);
  box-shadow: var(--neu-pressed);
  transition-duration: var(--duration-fast);
}

.neu-list-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.625rem;
  height: 2.625rem;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  flex-shrink: 0;
}

.neu-list-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.neu-list-text small {
  color: var(--text-muted);
}

.neu-list-item .chevron {
  color: var(--text-muted);
  transition: color var(--transition-base);
}

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

.neu-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-7) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--neu-pressed-lg);
  text-align: center;
}

.neu-empty-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin-bottom: var(--space-2);
  border-radius: 50%;
  background: var(--bg);
  box-shadow: var(--neu-flat);
  font-size: 1.75rem;
}

.neu-empty h3,
.neu-empty p {
  margin: 0;
}

.neu-empty p {
  max-width: 36ch;
}

.neu-empty .neu-btn {
  margin-top: var(--space-3);
}

/* --------------------------------------------------------------------------
   Spinner / loader
   -------------------------------------------------------------------------- */

.neu-spinner {
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  position: relative;
}

.neu-spinner::before {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--accent);
  border-right-color: var(--accent);
  animation: spin 900ms linear infinite;
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */

.neu-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.neu-breadcrumb a {
  color: var(--text-secondary);
  font-weight: 600;
}

@media (hover: hover) {
  .neu-breadcrumb a:hover {
    color: var(--accent);
  }
}

.neu-breadcrumb .current,
.neu-breadcrumb [aria-current] {
  color: var(--accent);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Dropdown menu - anchored to its trigger: it scales from the corner it
   hangs from, and closes along the same path.
   -------------------------------------------------------------------------- */

.neu-dropdown {
  position: relative;
  display: inline-block;
}

.neu-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 180px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: var(--bg);
  box-shadow: var(--neu-float);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.94);
  transform-origin: top right;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: var(--z-popover);
}

.neu-dropdown-menu-left {
  right: auto;
  left: 0;
  transform-origin: top left;
}

.neu-dropdown.open .neu-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.neu-dropdown-item {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

@media (hover: hover) {
  .neu-dropdown-item:hover {
    background: var(--shadow-dark);
    color: var(--accent);
  }

  .neu-dropdown-item-danger:hover {
    color: var(--accent-danger);
  }
}

.neu-dropdown-item:active,
.neu-dropdown-item:focus-visible {
  background: var(--shadow-dark);
  color: var(--accent);
}

.neu-dropdown-item-danger {
  color: var(--accent-danger);
}

.neu-dropdown-divider {
  height: 1px;
  margin: var(--space-1) var(--space-2);
  background: color-mix(in srgb, var(--text-muted) 30%, transparent);
}

/* --------------------------------------------------------------------------
   Custom select - a fully CSS-styled stand-in for a native <select>.
   A native <select>'s closed box can be skinned (see .neu-select above),
   but its open option list is drawn by the OS/browser and cannot be
   restyled by CSS in any shipping browser. This component reuses the
   .neu-dropdown / .neu-dropdown-menu pattern instead, so the open state
   looks exactly like every other dropdown in the template.
   -------------------------------------------------------------------------- */

.neu-select-dropdown {
  width: 100%;
}

.neu-select-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  text-align: left;
  cursor: pointer;
  font-weight: 400;
}

.neu-select-caret {
  color: var(--text-muted);
  transition: transform var(--transition-base), color var(--transition-base);
}

.neu-select-dropdown.open .neu-select-caret {
  transform: rotate(180deg);
  color: var(--accent);
}

.neu-select-dropdown .neu-dropdown-menu {
  left: 0;
  right: 0;
  width: 100%;
  min-width: 0;
  transform-origin: top center;
}

.neu-dropdown-item.selected {
  color: var(--accent);
}

.neu-dropdown-item.selected::after {
  content: "✓";
  float: right;
}

/* --------------------------------------------------------------------------
   Small text elements: divider, keyboard key, inline code, code block
   -------------------------------------------------------------------------- */

.neu-divider {
  height: 4px;
  margin-block: var(--space-5);
  border: none;
  border-radius: var(--radius-pill);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
}

.neu-kbd {
  display: inline-block;
  padding: 0.1em 0.5em;
  border-radius: 6px;
  background: var(--bg);
  box-shadow: var(--neu-flat-sm);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-primary);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--accent);
}

.neu-code {
  margin: 0;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg);
  box-shadow: var(--neu-pressed);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-primary);
}

.neu-code code {
  color: inherit;
  font-size: inherit;
}