* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 480px at 85% -10%, var(--color-bg-glow), transparent 60%),
    var(--color-bg);
  background-attachment: fixed;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

.muted {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ---------- Header ---------- */
#app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-4);
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

#site-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.logo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gradient-accent);
  box-shadow: 0 0 12px var(--color-accent);
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--color-accent-hover);
  background: var(--color-accent-soft);
  border-radius: 999px;
  padding: 2px 9px;
}

#back-1-link {
  font-size: 0.78rem;
  color: var(--color-text);
  background: var(--color-surface-alt);
  text-decoration: none;
  border: 1px solid var(--color-text-muted);
  border-radius: 999px;
  padding: 2px 9px;
  white-space: nowrap;
}

#back-1-link:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-text);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

/* ---------- Tool dock in the header (core/widgets.js): metronome, countdowns, stopwatch, tuner, app volume ---------- */
#header-widgets {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: none;
}

/* Centred while it fits; when it does not, it scrolls from its first chip (centring with
   justify-content would cut the first chips off where they cannot be reached). */
#header-widgets::before,
#header-widgets::after {
  content: "";
  margin: auto;
}

.dock-slot {
  display: contents;
}

.widget {
  position: relative;
  flex: none;
  display: flex;
  align-items: center;
  height: 34px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface-alt);
  overflow: hidden;
}

.widget-main {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  height: 100%;
  padding: 0 var(--space-2) 0 var(--space-3);
  border: 0;
  background: transparent;
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
}

.widget-main:hover {
  background: var(--color-surface-hover);
}

/* a chip that is only its name has the same space on both sides */
.widget:not(.has-btn) .widget-main {
  padding-right: var(--space-3);
}

.widget.has-btn {
  padding-right: 4px;
}

.widget-icon {
  display: grid;
  place-items: center;
  min-width: 14px;
}

.widget-label {
  max-width: 110px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text-muted);
}

.widget-label:empty {
  display: none;
}

.widget-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.widget[data-status="running"] .widget-value {
  color: var(--color-accent-hover);
}

.widget[data-status="paused"] .widget-value {
  color: var(--color-text-muted);
}

.widget-value:empty {
  display: none;
}

.widget-unit {
  font-weight: 500;
  color: var(--color-text-muted);
}

.widget-btn {
  display: grid;
  place-items: center;
  width: 30px;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  touch-action: manipulation; /* tempo taps must not zoom the page */
  -webkit-user-select: none;
  user-select: none;
}

/* A hand coming off a guitar: bigger targets where there is no mouse. */
@media (pointer: coarse) {
  .widget { height: 44px; }
  .widget-btn { width: 44px; }
  .widget-main { font-size: 0.95rem; }
}

/* The countdown's quick start, under its chip. */
.dock-pop {
  position: fixed;
  z-index: 30;
  width: min(280px, calc(100vw - 16px));
  display: grid;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.dock-pop-title {
  font-size: 0.85rem;
  font-weight: 600;
}

.dock-pop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
}

.dock-pop-grid .chip {
  min-height: 40px;
  font-variant-numeric: tabular-nums;
}

/* The "?" beside a control or a word (core/help.js), and the text it opens. */
.help-btn {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin-left: 4px;
  padding: 0;
  vertical-align: middle;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: transparent;
  color: var(--color-text-muted);
  font: 700 11px/1 var(--font-sans, inherit);
  letter-spacing: 0;
  text-transform: none;
  cursor: pointer;
}

.help-btn:hover,
.help-btn[aria-expanded="true"] {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* a finger needs more than 18 pixels: the button answers a little outside its circle too */
.help-btn::after {
  content: "";
  position: absolute;
  inset: -9px;
}

.help-pop {
  width: min(320px, calc(100vw - 16px));
  gap: var(--space-2);
  font-size: 0.9rem;
  line-height: 1.45;
}

.help-pop p {
  margin: 0;
}

.widget-btn:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.widget-bar {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--gradient-accent);
  pointer-events: none;
}

.widget[data-status="done"] {
  border-color: var(--color-danger);
  animation: widget-alarm 1s ease-in-out infinite;
}

.widget[data-status="done"] .widget-value {
  color: var(--color-danger);
}

.widget[data-status="done"] .widget-bar {
  background: var(--color-danger);
}

@keyframes widget-alarm {
  50% { background: color-mix(in srgb, var(--color-danger) 28%, var(--color-surface-alt)); }
}

.widget-beat {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}

.widget-beat.on {
  background: var(--color-accent-2);
}

.widget-beat.on.accent {
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
}

/* ---------- Countdown list ---------- */
.cd-new .field-row input[type="text"] {
  flex: 1;
  min-width: 0;
}

.cd-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.cd-list:empty {
  display: none;
}

.cd-item {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.cd-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.cd-item-label {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cd-item-time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 2.2rem;
  line-height: 1.2;
  text-align: center;
  margin-bottom: var(--space-2);
}

.cd-item .progress {
  background: var(--color-surface);
  margin-bottom: var(--space-3);
}

.cd-item[data-status="running"] .cd-item-time {
  color: var(--color-accent);
}

.cd-item[data-status="paused"] .cd-item-time {
  color: var(--color-text-muted);
}

.cd-item[data-status="done"] {
  border-color: var(--color-danger);
}

.cd-item[data-status="done"] .cd-item-time {
  color: var(--color-danger);
}

#user-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  min-width: 0;
}

#user-status input {
  width: 110px;
}

/* The account (core/auth.js): a chip that says who is logged in, or that nobody is. */
#user-status { position: relative; }
.auth-chip { display: inline-flex; align-items: center; gap: 7px; padding: 5px 12px; border: 1px solid var(--color-border); border-radius: 999px; background: var(--color-surface-alt); color: var(--color-text); font: inherit; white-space: nowrap; }
.auth-chip i { width: 9px; height: 9px; border-radius: 50%; background: var(--color-ok); flex: none; }
.auth-chip.out { cursor: pointer; border-color: var(--scale-b); }
.auth-chip.out i { background: var(--scale-b); }
.auth-chip.out:hover { background: var(--color-surface-hover); }
.auth-sync { color: var(--color-text-muted); font-size: 0.8rem; }
.auth-sync::before { content: "· "; }
.auth-sync.warn { color: var(--scale-b); }
.auth-go { padding-left: 8px; border-left: 1px solid var(--color-border); font-weight: 700; color: var(--color-accent-hover); }
.auth-pop { position: absolute; right: 0; top: calc(100% + 8px); z-index: 50; width: min(320px, 92vw); display: grid; gap: var(--space-2); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45); }
.auth-pop[hidden] { display: none; }
#user-status .auth-pop input[type="text"], #user-status .auth-pop input[type="password"] { width: 100%; }
.auth-why { margin: 0; color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.4; }
.auth-keep { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.auth-msg { margin: 0; color: var(--scale-b); font-size: 0.85rem; }
.auth-msg[hidden] { display: none; }

/* ---------- Shared controls ---------- */
input[type="text"],
input[type="password"],
input[type="number"],
select {
  font: inherit;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus-visible,
select:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

input[type="range"] {
  accent-color: var(--color-accent);
}

input[type="checkbox"] {
  accent-color: var(--color-accent);
  width: 16px;
  height: 16px;
}

button {
  font: inherit;
}

button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

.btn:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-accent);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  border-style: dashed;
}

.btn:disabled:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-border);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--gradient-accent);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 14px var(--color-accent-soft);
}

.btn-primary:hover {
  background: var(--gradient-accent);
  border-color: transparent;
  filter: brightness(1.1);
}

.btn-danger {
  background: transparent;
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.btn-danger:hover {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: #fff;
}

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

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.icon-btn:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.icon-btn[aria-pressed="true"] {
  color: var(--color-accent-hover);
  background: var(--color-accent-soft);
}

.button-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.field-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.field-row input[type="number"] {
  width: 76px;
}

/* ---------- Layout ---------- */
#layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  align-items: start;
  transition: grid-template-columns 0.2s ease;
}

body.rail #layout {
  grid-template-columns: var(--sidebar-w-rail) minmax(0, 1fr);
}

/* ---------- Sidebar ---------- */
#menu {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-4) var(--space-3);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.menu-header {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-muted);
  padding: 0 var(--space-3);
  margin-bottom: var(--space-2);
  white-space: nowrap;
}

.menu-bar {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.menu-btn {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: 9px var(--space-3);
  background: transparent;
  color: var(--color-text);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  font-size: 0.92rem;
  transition: background 0.15s, border-color 0.15s;
}

.menu-btn:hover {
  background: var(--color-surface-hover);
}

.menu-btn.active {
  background: var(--color-accent-soft);
  border-color: color-mix(in srgb, var(--color-accent) 40%, transparent);
  font-weight: 600;
}

.menu-icon {
  flex: none;
  width: 22px;
  text-align: center;
  font-size: 1.05rem;
}

.menu-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* only in the narrow screen's sheet, where the header has no room for it */
.menu-link {
  display: none;
  text-decoration: none;
  color: var(--color-text-muted);
}

/* Collapsed to an icon rail */
body.rail #menu {
  padding-inline: var(--space-2);
}

body.rail .menu-label {
  display: none;
}

body.rail .menu-header {
  text-align: center;
  padding: 0;
  font-size: 0;
  height: 1px;
  background: var(--color-border);
  margin: 0 var(--space-2) var(--space-2);
}

body.rail .menu-btn {
  justify-content: center;
  padding-inline: 0;
}

/* ---------- Workspace ---------- */
#workspace {
  padding: var(--space-4);
  min-width: 0;
}

#workspace-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

/* Panels flow into as many columns as fit and back-fill gaps, so the
   screen is used whether you have one panel open or six. */
#sections {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  grid-auto-flow: dense;
  align-items: start;
  gap: var(--space-4);
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  min-width: 0;
  animation: panel-in 0.18s ease;
}

/* Scrolled to from elsewhere (a practice session opening its trainer): clear of the header. */
.panel { scroll-margin-top: calc(var(--header-h) + var(--space-3)); }

.panel[hidden] {
  display: none;
}

.panel.wide {
  grid-column: 1 / -1;
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px var(--space-2) 6px 6px;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 650;
  text-align: left;
  cursor: pointer;
}

.panel-title:hover {
  background: var(--color-surface-hover);
}

.panel-chevron {
  display: grid;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
}

.panel.collapsed .panel-chevron {
  transform: rotate(-90deg);
}

.panel-actions {
  display: flex;
  gap: 2px;
}

/* Smooth collapse: animate a 1fr -> 0fr grid row */
.panel-body {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 0.22s ease;
}

.panel-content {
  min-height: 0;
  overflow: hidden;
  padding: 0 var(--space-4) var(--space-4);
}

.panel.collapsed .panel-body {
  grid-template-rows: 0fr;
}

.panel.collapsed .panel-content {
  padding-bottom: 0;
}

.card {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.card h3 {
  margin: 0 0 var(--space-3);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

/* ---------- Empty state ---------- */
#empty-state {
  max-width: 460px;
  margin: 12vh auto 0;
  text-align: center;
  color: var(--color-text-muted);
}

#empty-state h2 {
  margin: var(--space-2) 0;
  color: var(--color-text);
  font-size: 1.25rem;
}

.empty-icon {
  font-size: 2.6rem;
}

/* ---------- Shared module widgets ---------- */
.big-display {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: clamp(2.6rem, 9vw, 3.6rem);
  line-height: 1.1;
  text-align: center;
  margin: var(--space-2) 0 var(--space-3);
  color: var(--color-text);
  transition: color 0.2s;
}

.big-display.running {
  color: var(--color-accent);
}

.big-display.done {
  color: var(--color-danger);
}

.progress {
  height: 6px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--gradient-accent);
  transition: width 0.25s linear;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.chip,
.seg-btn {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.chip {
  padding: 5px 12px;
  border-radius: 999px;
}

.chip:hover,
.seg-btn:hover {
  background: var(--color-surface-hover);
}

.chip.active,
.seg-btn[aria-pressed="true"] {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
  font-weight: 650;
}

.seg {
  display: flex;
  width: 100%;
}

.seg-btn {
  flex: 1;
  padding: 8px 4px;
  border-radius: 0;
  margin-left: -1px;
}

.seg-btn:first-child {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  margin-left: 0;
}

.seg-btn:last-child {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.seg-btn[aria-pressed="true"] {
  position: relative;
  z-index: 1;
}

.control-label {
  display: block;
  margin: var(--space-4) 0 var(--space-2);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.btn-lg {
  width: 100%;
  padding-block: 12px;
  font-size: 1rem;
  font-weight: 650;
}

.actions-row {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.actions-row .btn-primary {
  flex: 1;
}

/* ---------- Metronome module ---------- */
.beat-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin: var(--space-2) 0 var(--space-3);
}

.beat-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  transition: background 0.08s, box-shadow 0.08s, transform 0.08s;
}

.beat-dot.first {
  border-color: var(--color-danger);
}

.beat-dot.on {
  background: var(--color-accent-2);
  border-color: var(--color-accent-2);
  box-shadow: 0 0 14px var(--color-accent-2);
  transform: scale(1.25);
}

.beat-dot.first.on {
  background: var(--color-danger);
  border-color: var(--color-danger);
  box-shadow: 0 0 14px var(--color-danger);
}

.bpm-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.bpm-row .icon-btn {
  width: 40px;
  height: 40px;
  font-size: 1.4rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.bpm-value {
  text-align: center;
  min-width: 6.5rem;
}

.bpm-number {
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.bpm-tempo {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.metronome-body input[type="range"] {
  width: 100%;
  margin: var(--space-3) 0 0;
}

.volume-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.volume-row input[type="range"] {
  flex: 1;
  margin: 0;
}

.metronome-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.metronome-actions .btn-primary {
  flex: 1;
}

/* ---------- Fretboard + Triads module ---------- */
.fretboard-wrap {
  overflow-x: auto;
  margin: var(--space-2) 0 var(--space-1);
}

.fretboard {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.fb-wood { fill: var(--color-surface-alt); stroke: var(--color-border); }
.fb-inlay { fill: var(--color-border); opacity: 0.7; }
.fb-fret { stroke: var(--color-border); stroke-width: 2; }
.fb-nut { stroke: var(--color-text-muted); stroke-width: 6; }
.fb-string { stroke: var(--color-text-muted); }
.fb-string.dim { opacity: 0.25; }
.fb-name { fill: var(--color-text-muted); font-size: 15px; font-weight: 600; }
.fb-name.dim { opacity: 0.35; }
.fb-fretnum { fill: var(--color-text-muted); font-size: 12px; opacity: 0.6; }
.fb-fretnum.marked { opacity: 1; font-weight: 700; }
.fb-hull { fill: var(--color-accent-soft); stroke: var(--color-accent); stroke-dasharray: 5 4; stroke-width: 1.2; opacity: 0.9; }
.fb-tag { fill: var(--color-accent); font-size: 12px; font-weight: 700; }
.fb-dot text { font-size: 12px; font-weight: 700; fill: #fff; pointer-events: none; }
.fb-dot.root .dot-fill { fill: var(--color-danger); }
.fb-dot.third .dot-fill { fill: #0ea5e9; }
.fb-dot.fifth .dot-fill { fill: var(--color-accent); }
.fb-dot.other .dot-fill { fill: #5f6b85; } /* scale notes without a job, so root/3rd/5th stand out */
.fb-dot circle { stroke: var(--color-surface); stroke-width: 2; }

.triads-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.triads-title { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.15; }
.triads-sub { color: var(--color-text-muted); font-size: 0.9rem; margin-top: 2px; }
.triads-actions { display: flex; gap: var(--space-2); }

.legend { display: flex; gap: var(--space-4); font-size: 0.8rem; color: var(--color-text-muted); margin: var(--space-1) 0 var(--space-2); }
.legend .dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 5px; }
.legend .dot.root { background: var(--color-danger); }
.legend .dot.third { background: #0ea5e9; }
.legend .dot.fifth { background: var(--color-accent); }
.legend .dot.other { background: #5f6b85; }

.triads-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0 var(--space-5);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2);
}

.triads-controls .ctrl-wide { grid-column: 1 / -1; }
.triads-controls .chip-row { margin-bottom: 0; }

.quiz-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.quiz-hint {
  flex-basis: 100%;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.legend-hint {
  margin-left: auto;
  font-style: italic;
}

.fb-voicing .fb-hull,
.fb-voicing .fb-dot {
  cursor: pointer;
}

.fb-dot circle {
  transition: r 0.12s;
  transform-box: fill-box;
  transform-origin: center;
}

.fb-dot:hover circle {
  filter: brightness(1.15);
}

.fb-voicing:hover .fb-hull {
  fill: color-mix(in srgb, var(--color-accent) 22%, transparent);
}

.fb-dot.pulse circle,
.fb-voicing.playing .fb-dot circle {
  animation: dot-pulse 0.45s ease-out;
}

.fb-voicing.playing .fb-hull {
  stroke-width: 2.5;
  stroke-dasharray: none;
  fill: color-mix(in srgb, var(--color-accent) 30%, transparent);
}

@keyframes dot-pulse {
  40% { transform: scale(1.35); }
}

.quiz-result { display: inline-flex; gap: var(--space-2); }

/* ---------- Scales module ---------- */
.fb-dot.a .dot-fill,
.fb-dot.both .dot-fill { fill: var(--scale-a); }
.fb-dot.b .dot-fill { fill: var(--scale-b); }
.fb-dot .b-half { fill: var(--scale-b); stroke: none; }
.fb-dot.b text { fill: #1b1200; }
.fb-dot.both text { paint-order: stroke; stroke: rgba(0, 0, 0, 0.55); stroke-width: 3px; stroke-linejoin: round; }
.fb-dot .ring-outline { fill: none; stroke: var(--color-text); stroke-width: 2.5; }
.fb-dot.dim { opacity: 0.2; }
.fb-dot.dim:hover { opacity: 0.6; }
.fb-dot { cursor: pointer; }

.legend .dot.a { background: var(--scale-a); }
.legend .dot.b { background: var(--scale-b); }
.legend .dot.both { background: linear-gradient(90deg, var(--scale-a) 50%, var(--scale-b) 50%); }
.legend .dot.ring { background: transparent; border: 2px solid var(--color-text); width: 10px; height: 10px; box-sizing: border-box; }

.scale-badge {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 800;
  color: #fff;
  flex: none;
}
.scale-badge.a { background: var(--scale-a); }
.scale-badge.b { background: var(--scale-b); color: #1b1200; }

.scale-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-3);
  margin: var(--space-3) 0;
}

.scale-card {
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--scale-a);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  padding: var(--space-3) var(--space-4) var(--space-4);
}
.scale-card.b { border-top-color: var(--scale-b); }
.scale-card .chip-row { margin: var(--space-3) 0 var(--space-2); }
.scale-card select { width: 100%; }

.scale-card-head { display: flex; align-items: center; gap: var(--space-2); }
.scale-card-title { flex: 1; font-weight: 650; }

.compare-summary {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  padding: var(--space-3) var(--space-4);
  margin: var(--space-2) 0;
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  font-size: 0.92rem;
}
.sum-item { display: flex; align-items: center; gap: var(--space-2); }
.sum-item .dot { width: 12px; height: 12px; border-radius: 50%; }
.sum-item .dot.a { background: var(--scale-a); }
.sum-item .dot.b { background: var(--scale-b); }
.sum-item .dot.both { background: linear-gradient(90deg, var(--scale-a) 50%, var(--scale-b) 50%); }
.sum-item span { color: var(--color-text-muted); letter-spacing: 0.04em; }

.board-block + .board-block { margin-top: var(--space-2); }
.board-label { display: flex; align-items: center; gap: var(--space-2); font-weight: 650; margin-top: var(--space-2); }

.seg { flex-wrap: nowrap; }
#sc-position .seg-btn { min-width: 34px; }

/* ---------- Easter egg: ghost note ---------- */
.ghost {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  cursor: pointer;
  filter: drop-shadow(0 0 14px rgba(185, 168, 255, 0.85));
  will-change: transform, opacity;
}

.ghost-flip.flipped { transform: scaleX(-1); }
.ghost-flip svg { display: block; animation: ghost-bob 1.6s ease-in-out infinite; }

@keyframes ghost-bob {
  50% { transform: translateY(-9px) rotate(-3deg); }
}

.ghost-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 10000;
  max-width: min(92vw, 520px);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-accent);
  box-shadow: var(--shadow-panel), 0 0 24px var(--color-accent-soft);
  font-size: 0.9rem;
  opacity: 0;
  transform: translate(-50%, 12px);
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

.ghost-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.logo-dot { cursor: default; }

/* ---------- Fretboard Quiz module ---------- */
.fq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0 var(--space-5);
}

.fq-device { display: flex; gap: var(--space-2); }
.fq-device select { flex: 1; min-width: 0; }

.fq-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin: var(--space-4) 0 var(--space-3);
}

.check { display: inline-flex; align-items: center; gap: var(--space-2); cursor: pointer; }

.fq-advanced {
  margin: var(--space-3) 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.fq-advanced summary, .fq-stats summary { cursor: pointer; font-weight: 600; color: var(--color-text); }
.fq-advanced .ctrl { margin-top: var(--space-2); }

.fq-history { display: flex; flex-wrap: wrap; gap: 6px; margin: var(--space-3) 0; font-variant-numeric: tabular-nums; }
.fq-history > div:not(.fq-summary) { padding: 3px 10px; border-radius: 999px; background: var(--color-surface-alt); border: 1px solid var(--color-border); font-size: 0.85rem; }
.fq-summary { flex-basis: 100%; order: -1; padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-accent-soft); }

.fq-versus { display: block; margin-top: var(--space-1); color: var(--color-text-muted); }
.fq-versus.faster { color: var(--color-ok); font-weight: 600; }
.fq-stats tr.slowest td:first-child::after { content: " · slowest"; color: var(--color-text-muted); font-size: 0.85em; }

.fq-stats { margin-top: var(--space-4); border-top: 1px solid var(--color-border); padding-top: var(--space-3); }
.fq-stats h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); margin: var(--space-3) 0 var(--space-2); }
.fq-stats .table-wrap { overflow-x: auto; }
.fq-stats table { border-collapse: collapse; min-width: 320px; }
.fq-stats th, .fq-stats td { text-align: left; padding: 6px 14px 6px 0; border-bottom: 1px solid var(--color-border); font-variant-numeric: tabular-nums; }

/* ---------- Fretboard Quiz: troubleshooting ---------- */
.fq-advanced { border-top: 1px solid var(--color-border); padding-top: var(--space-2); }
.fq-advanced[open] { padding-bottom: var(--space-2); }
.fq-advanced .ctrl { margin-bottom: var(--space-2); }

/* ---------- Narrow screens: the menu is a sheet under the header, opened by the menu button ---------- */
#menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 18;
  background: rgba(0, 0, 0, 0.5);
}

@media (max-width: 760px) {
  /* Title and login on one line, so the header is two rows with the dock and not three. */
  #app-header {
    column-gap: var(--space-2);
    padding-inline: var(--space-3);
  }

  #site-title .badge,
  #back-1-link,
  .auth-as {
    display: none;
  }

  .menu-link {
    display: flex;
    border-top: 1px solid var(--color-border);
    border-radius: 0;
  }

  #header-widgets::before {
    display: none; /* the dock starts at the left edge */
  }

  #user-status input {
    width: 84px;
  }

  /* The tool dock gets its own row under the title bar. */
  #app-header {
    height: auto;
    min-height: var(--header-h);
    flex-wrap: wrap;
    row-gap: var(--space-2);
    padding-top: var(--space-2);
  }

  #header-widgets {
    order: 3;
    flex-basis: 100%;
    padding-bottom: var(--space-2);
  }

  #layout,
  body.rail #layout {
    grid-template-columns: minmax(0, 1fr);
  }

  #menu,
  body.rail #menu {
    display: none;
    position: fixed;
    z-index: 19;
    top: var(--menu-top, var(--header-h));
    left: 0;
    right: 0;
    height: auto;
    max-height: calc(100vh - var(--menu-top, var(--header-h)));
    max-height: calc(100dvh - var(--menu-top, var(--header-h)));
    padding: var(--space-4) var(--space-3);
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-panel);
  }

  body.menu-open #menu {
    display: flex;
  }

  /* the sheet never folds to icons, whatever the sidebar is set to on a wide screen */
  body.rail .menu-header {
    text-align: left;
    padding: 0 var(--space-3);
    font-size: 0.68rem;
    height: auto;
    background: none;
    margin: 0 0 var(--space-2);
  }

  .menu-btn,
  body.rail .menu-btn {
    justify-content: flex-start;
    min-height: 48px;
    padding: var(--space-3);
    font-size: 1rem;
  }

  body.rail .menu-label {
    display: inline;
  }

  .widget[data-rest] .widget-label,
  .widget-unit {
    display: none;
  }

  #header-widgets {
    gap: 6px;
  }

  #workspace {
    padding: var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

.sc-posinfo {
  margin: var(--space-2) 0;
  padding: var(--space-2) var(--space-3);
  border-left: 3px solid var(--scale-a);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.sc-posinfo strong { color: var(--color-text); }

/* Scale Trainer */
.st-steps { margin: var(--space-2) 0; }
.st-help { margin: var(--space-2) 0 var(--space-3); color: var(--color-text-muted); font-size: 0.92rem; max-width: 70ch; }

/* ---------- Rhythm Reader ---------- */
.rhythm-stage {
  margin: var(--space-3) 0;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.rhythm-line {
  display: block;
  width: 100%;
  height: auto;
  max-height: 170px;
  color: var(--color-text);
}

.rhythm-next {
  opacity: 0.5;
}

.rhythm-next-label {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px dashed var(--color-border);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.rn-staff { stroke: var(--color-text-muted); stroke-width: 1.2; }
.rn-barline { stroke: var(--color-text-muted); stroke-width: 1.4; }
.rn-barline.rn-final { stroke-width: 3; }
.rn-timesig { fill: var(--color-text); font-size: 25px; font-weight: 800; font-family: Georgia, "Times New Roman", serif; }
.rn-tuplet { fill: var(--color-text); font-size: 13px; font-weight: 700; font-style: italic; }
.rn-cursor { stroke: var(--color-accent-2); stroke-width: 2; opacity: 0.8; }
.rn-extra { stroke: var(--color-danger); stroke-width: 3; stroke-linecap: round; }
.rn-marker { fill: var(--color-accent-2); }
.rn-ev.played { color: var(--color-accent-hover); }
.rn-ev.miss { color: var(--color-danger); }
.rn-ev.hit { color: var(--color-ok); }

.rhythm-tempo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.rhythm-tempo strong {
  min-width: 3ch;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 1.15rem;
}

.rhythm-tempo input[type="range"] {
  flex: 1;
  min-width: 80px;
}

.rhythm-checks {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  font-size: 0.9rem;
}

.rhythm-checks label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.rhythm-cellgroup {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.rhythm-cellgroup-name {
  width: 86px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.rhythm-chip {
  display: inline-grid;
  place-items: center;
  min-width: 46px;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.rhythm-chip.active {
  color: var(--color-text);
}

.rhythm-cell {
  display: block;
}

.rhythm-input {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-3) 0 var(--space-2);
  font-size: 0.9rem;
}

.rhythm-input select {
  flex: 1;
  min-width: 160px;
  max-width: 360px;
}

.rhythm-meter {
  flex: 1;
  min-width: 100px;
  max-width: 220px;
  height: 8px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.rhythm-meter-bar {
  height: 100%;
  width: 0;
  background: var(--color-ok);
}

/* Timing marks: star + green = spot on, green = good, yellow = only just, red = missed. */
.rn-ev.hit-perfect,
.rn-ev.hit-good { color: var(--color-ok); }
.rn-ev.hit-ok { color: var(--scale-b); }
.rn-star { fill: var(--color-ok); font-size: 13px; }

/* ---------- Input chip (in listening modules) + Settings ---------- */
.input-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  max-width: 100%;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  color: var(--color-text);
  font-size: 0.9rem;
  cursor: pointer;
}

.input-chip:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-text-muted);
}

.input-chip-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.input-chip-action {
  color: var(--color-accent-hover);
  font-size: 0.8rem;
  font-weight: 600;
}

.settings-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.settings-row select {
  flex: 1;
  min-width: 0;
}

.settings-meter {
  max-width: none;
}

.settings .quiz-hint {
  margin-bottom: var(--space-3);
}

.rn-syl { fill: var(--color-text-muted); font-size: 14px; font-weight: 600; }
.rn-syl.rest { opacity: 0.4; }

.rhythm-fine summary {
  margin-top: var(--space-4);
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.rhythm-fine summary:hover {
  color: var(--color-text);
}

button.rhythm-cellgroup-name {
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
}

button.rhythm-cellgroup-name:hover {
  color: var(--color-text);
  text-decoration: underline;
}

/* ---------- Bend Trainer ---------- */
.bend-stage {
  position: relative;
  margin: var(--space-3) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  overflow: hidden;
}

.bend-graph {
  display: block;
  width: 100%;
  height: clamp(210px, 30vw, 320px);
}

.bend-readout {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-3);
  text-align: right;
  pointer-events: none;
}

.bend-now {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent-hover);
}

.bend-now-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.bend-result {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-left-width: 4px;
  border-radius: var(--radius-md);
}

.bend-result[data-grade="ok"] { border-left-color: var(--color-ok); }
.bend-result[data-grade="warn"] { border-left-color: var(--scale-b); }
.bend-result[data-grade="bad"] { border-left-color: var(--color-danger); }

.bend-result-main {
  font-size: 1.3rem;
  font-weight: 700;
}

.bend-result[data-grade="ok"] .bend-result-main { color: var(--color-ok); }
.bend-result[data-grade="warn"] .bend-result-main { color: var(--scale-b); }
.bend-result[data-grade="bad"] .bend-result-main { color: var(--color-danger); }

.bend-result-detail {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.bend-history {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  margin: var(--space-3) 0;
  font-size: 0.9rem;
}

/* the round: its name, ten pills, and how it is going */
.bend-round {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  font-variant-numeric: tabular-nums;
}

.bend-round .drill-pills {
  margin-top: 0;
}

.bend-rounds {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.bend-rounds:empty {
  display: none;
}

.bend-round-chip {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.bend-round-chip.best {
  border-color: var(--color-ok);
  color: var(--color-ok);
}

.bend-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-border);
}

.bend-dot.ok { background: var(--color-ok); }
.bend-dot.warn { background: var(--scale-b); }
.bend-dot.bad { background: var(--color-danger); }

/* The lines (modules/bend/linesview.js): a tab played in time, drawn as the Phrase Trainer
   draws a riff (".ph-" below). Two rows show at a time; it scrolls itself while playing. */
.bend-line-tab { overflow-y: auto; }
.bend-line-tab .ph-split.bar { stroke: var(--color-text-muted); stroke-dasharray: none; }
.bend-line-legend { flex-wrap: wrap; }
.bend-line-legend b { color: var(--color-text); font-weight: 700; }
.bl-verdict { font-size: 12px; font-weight: 700; }
.bl-verdict.ok { fill: var(--color-ok); }
.bl-verdict.warn { fill: var(--scale-b); }
.bl-verdict.bad { fill: var(--color-danger); }
.bl-verdict.none { fill: var(--color-text-muted); font-weight: 500; }
/* Up a scale (walkview.js): a note on the neck takes the colour of how the bend to it landed */
.fb-dot.bend-ok .dot-fill, .legend .dot.ok { fill: var(--color-ok); background: var(--color-ok); }
.fb-dot.bend-warn .dot-fill, .legend .dot.warn { fill: var(--scale-b); background: var(--scale-b); }
.fb-dot.bend-bad .dot-fill, .legend .dot.bad { fill: var(--color-danger); background: var(--color-danger); }
.fb-dot.bend-none .dot-fill { fill: #5f6b85; }
.fb-dot.bend-warn text { fill: #1b1200; }
#bd-walk.playing #bw-what,
.panel.compact #bw-what,
#bd-line.playing #bl-what,
#bd-line.playing #bl-after,
.panel.compact #bl-what,
.panel.compact #bl-after { display: none; }

/* Simple or Advanced (core/mode.js): the extra settings only show in Advanced. */
:root:not([data-mode="advanced"]) .advanced-only {
  display: none !important;
}
:root[data-mode="advanced"] .simple-only {
  display: none !important;
}
/* at the foot of a panel with settings that Simple hides: where to find them */
.mode-hint {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.88rem;
}
.mode-link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--color-accent);
  font: inherit;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
}
.mode-toggle { white-space: nowrap; }
.mode-toggle[aria-pressed="true"] {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Debug tools (recorders, troubleshooting) only show when switched on in Settings. */
:root:not([data-debug="on"]) .debug-only {
  display: none !important;
}

/* Rhythm Reader settings: four groups, the rarely changed ones folded away. */
.rhythm-group {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.rhythm-group-title {
  margin: 0 0 var(--space-3);
  font-size: 0.95rem;
  font-weight: 700;
}

.rhythm-grid {
  border-top: 0;
  margin-top: 0;
}

.rhythm-grid .control-label {
  margin-top: 0;
}

.rhythm-grid > div {
  margin-bottom: var(--space-3);
}

.rhythm-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin: var(--space-3) 0 var(--space-2);
  font-size: 0.85rem;
}

.rhythm-inline-label {
  font-weight: 600;
}

.rhythm-fine summary {
  margin-top: var(--space-2);
}

.rhythm-fine #rr-cells {
  margin-top: var(--space-3);
}

.rhythm-more > summary {
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
}

.rhythm-more > summary .muted {
  font-weight: 400;
  font-size: 0.85rem;
}

.rhythm-more[open] > summary {
  margin-bottom: var(--space-3);
}

/* Complexity sits on one line: label, four buttons, and what the choice means. */
.rhythm-inline .seg {
  display: inline-flex;
  width: auto;
  flex: none;
}

.rhythm-inline .seg-btn {
  flex: none;
  padding-inline: var(--space-4);
}

.rhythm-debug {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px dashed var(--color-border);
}

.rhythm-debug input[type="text"] {
  flex: 1;
  min-width: 200px;
}

/* ---------- Shared debug download block (core/debugdownload.js) ---------- */
.debug-download {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.debug-download input[type="text"] {
  flex: 1;
  min-width: 200px;
}

/* ---------- Drill screen (core/drill.js): what to play, what is heard ---------- */
.drill-prompt { text-align: center; padding: var(--space-2) 0; }
.drill-title { font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.01em; }
.drill-title.pop { animation: drill-pop 0.35s ease-out; }
@keyframes drill-pop { from { transform: scale(0.7); opacity: 0.3; } }
.drill-sub { color: var(--color-text-muted); margin-top: var(--space-1); }
.drill-prompt.is-done .drill-title { color: var(--color-ok); }
.drill-prompt.is-done .drill-pills { opacity: 0.9; }

.drill-pills { display: flex; justify-content: center; gap: 6px; margin-top: var(--space-3); }
.drill-pills i { width: 22px; height: 6px; border-radius: 999px; background: var(--color-surface-hover); border: 1px solid var(--color-border); }
.drill-pills i.done { background: var(--color-ok); border-color: var(--color-ok); }
.drill-pills i.now { background: var(--color-accent); border-color: var(--color-accent); }

/* The prompt is one note name: the biggest thing on the screen. */
.drill-prompt-big { padding-bottom: var(--space-3); }
.drill-prompt-big .drill-title {
  font-size: clamp(4rem, 14vw, 7rem);
  line-height: 1;
  letter-spacing: -0.02em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.drill-prompt-big.is-done { padding-bottom: 0; }
.drill-prompt-big.is-done .drill-title { font-size: 3.5rem; color: transparent; }
.drill-prompt-big.is-done .drill-pills { display: none; }

.drill-live { display: grid; gap: var(--space-2); max-width: 420px; margin: var(--space-3) auto; text-align: center; }
.drill-hearing { font-variant-numeric: tabular-nums; font-weight: 600; min-height: 1.5em; color: var(--color-text-muted); }
.drill-hearing[data-state="good"] { color: var(--color-ok); }
.drill-hearing[data-state="wrong"] { color: var(--color-danger); }
.drill-meter { position: relative; height: 8px; border-radius: 999px; background: var(--color-surface-alt); border: 1px solid var(--color-border); }
.drill-meter-mid { position: absolute; left: 50%; top: -3px; bottom: -3px; width: 2px; background: var(--color-text-muted); opacity: 0.6; }
.drill-meter i { position: absolute; top: -3px; width: 4px; height: 14px; margin-left: -2px; border-radius: 2px; background: var(--color-accent); opacity: 0; transition: left 0.06s linear; }

.drill-controls { display: flex; gap: var(--space-2); justify-content: flex-end; }
.drill-error { color: var(--color-danger); font-size: 0.9rem; }

/* ---------- Phrase Trainer ---------- */
.phrase-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  min-height: 1.6em;
  font-variant-numeric: tabular-nums;
}
.phrase-status .drill-pills { margin-top: 0; }

/* The list of phrases, a set at a time: the tabs sit right on top of the chips they turn. */
.phrase-sets {
  display: inline-flex;
  width: auto;
  margin-bottom: var(--space-2);
}
.phrase-sets .seg-btn {
  flex: none;
  padding-inline: var(--space-4);
}

.phrase-tab {
  margin: var(--space-2) 0;
  padding: var(--space-3) var(--space-3) var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  overflow-x: auto;
}
.ph-svg { display: block; color: var(--color-text); }
.ph-string { stroke: var(--color-border); stroke-width: 1; }
.ph-bar { stroke: var(--color-text-muted); stroke-width: 1.5; }
.ph-split { stroke: var(--color-border); stroke-width: 1; stroke-dasharray: 2 4; }
.ph-name { fill: var(--color-text-muted); font-size: 12px; font-family: var(--font-mono); }
.ph-ev rect { fill: var(--color-surface-alt); }
.ph-fret { fill: currentColor; font-size: 14px; font-weight: 700; font-family: var(--font-mono); }
.ph-ev.soft .ph-fret { font-weight: 500; opacity: 0.75; } /* not picked: sounded by the left hand */
.ph-mark { fill: var(--color-text-muted); font-size: 12px; font-weight: 700; }
.ph-ev.now { color: var(--color-accent-hover); }
.ph-ev.hit-perfect, .ph-ev.hit-good { color: var(--color-ok); }
.ph-ev.hit-ok { color: var(--scale-b); }
.ph-ev.miss { color: var(--color-danger); }
.ph-group { fill: none; stroke: var(--color-accent); stroke-width: 1.5; opacity: 0.7; }
.ph-count { fill: var(--color-accent-hover); font-size: 13px; font-weight: 700; }
.ph-word { fill: var(--color-text-muted); font-size: 11.5px; }
.ph-pm { fill: var(--color-text-muted); font-size: 10px; font-style: italic; }
.ph-pm-line { stroke: var(--color-text-muted); stroke-width: 1; stroke-dasharray: 3 3; }
.ph-cursor { stroke: var(--color-accent-2); stroke-width: 2; opacity: 0.8; }
.ph-extra { stroke: var(--color-danger); stroke-width: 3; stroke-linecap: round; }
.ph-star { fill: var(--color-ok); font-size: 11px; }
/* a bend: the arrow, how far, and the line for as long as it is kept up; a chord name over a bar */
.ph-bend { fill: none; stroke: currentColor; stroke-width: 1.5; }
.ph-bend-head { fill: currentColor; }
.ph-bend-label { fill: currentColor; font-size: 12px; font-weight: 700; }
.ph-bend-hold { stroke: currentColor; stroke-width: 1; stroke-dasharray: 3 4; opacity: 0.5; }
.ph-chord { fill: var(--color-accent-hover); font-size: 14px; font-weight: 800; }
.ph-tuplet { fill: none; stroke: var(--color-text-muted); stroke-width: 1; }
.ph-tuplet-n { fill: var(--color-text-muted); font-size: 11px; font-weight: 700; font-style: italic; }
.phrase .legend b { color: var(--color-text); font-weight: 700; }

/* ---------- Tuner ---------- */
.tuner { display: grid; gap: var(--space-3); max-width: 460px; margin: 0 auto; text-align: center; }
.tuner-note { font-size: clamp(3.5rem, 14vw, 6rem); font-weight: 800; line-height: 1; letter-spacing: -0.02em; color: var(--color-text-muted); transition: opacity 0.2s; }
.tuner-note sub { font-size: 0.35em; font-weight: 600; vertical-align: baseline; margin-left: 2px; opacity: 0.7; }
.tuner-note[data-state="good"] { color: var(--color-ok); }
.tuner-note[data-state="close"] { color: var(--color-text); }
.tuner-note[data-state="off"] { color: var(--color-danger); }
.tuner-note.faded { opacity: 0.45; }
.tuner-cents { font-variant-numeric: tabular-nums; font-weight: 600; min-height: 1.5em; color: var(--color-text-muted); }
.tuner-dial { display: grid; gap: 6px; }
.tuner-scale { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--color-text-muted); font-variant-numeric: tabular-nums; }
.tuner-strings { justify-content: center; }
.tuner-strings .chip { cursor: default; }
.tuner-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: flex-end; justify-content: center; }

/* ---------- Practice Session ---------- */
.practice-heading {
  margin: var(--space-4) 0 var(--space-2);
  font-size: 1rem;
}

.practice-plan,
.practice-rows {
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
  max-width: 640px;
}
.practice-rows { max-width: 820px; }

.practice-step {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 6px var(--space-3);
  border-bottom: 1px solid var(--color-border);
  font-variant-numeric: tabular-nums;
}
.practice-step:last-child { border-bottom: 0; }
.practice-step-icon { width: 1.5em; text-align: center; flex: none; }
.practice-step-name { flex: 1; min-width: 0; }
.practice-step-size { color: var(--color-text-muted); white-space: nowrap; }
.practice-step.done { opacity: 0.5; }
.practice-step.now {
  background: var(--color-accent-soft);
  border-radius: 8px;
  border-bottom-color: transparent;
  font-weight: 650;
}

.practice-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}
.practice-row-kind { width: 6em; }
.practice-row select { flex: 1; min-width: 160px; }
.practice-row-size { display: inline-flex; align-items: center; gap: var(--space-2); }
.practice-row-size input[type="number"] { width: 64px; }
.practice-row-size select { flex: none; min-width: 0; }
.practice-row-tools { display: inline-flex; gap: 2px; margin-left: auto; }

.practice-add { margin: var(--space-3) 0; }
.practice-actions { margin-top: var(--space-3); }

.practice-clock { margin-top: var(--space-3); }
.practice-clock strong {
  font-size: 2.2rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  margin-right: var(--space-2);
}
.practice-bar {
  height: 4px;
  margin: var(--space-2) 0 var(--space-4);
  max-width: 640px;
  border-radius: 2px;
  background: var(--color-border);
  overflow: hidden;
}
.practice-bar > div { height: 100%; width: 0; background: var(--color-accent); }

/* ---------- Rhythm Reader: the opening question and the Starter (modules/rhythm/starter.js) ---------- */
.rhythm-ask,
.rhythm-starter {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.rhythm-ask[hidden],
.rhythm-starter[hidden],
.rhythm.playing .rhythm-ask {
  display: none;
}

/* Advice (core/advice.js): what to do next in a trainer, with at most one button that does it */
.advice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent-2);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}
.advice[data-kind="up"], .advice[data-kind="faster"] { border-left-color: var(--color-ok); }
.advice[data-kind="wait"] { border-left-color: var(--color-border); color: var(--color-text-muted); }
.advice-tag {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.advice-text { flex: 1; min-width: 16ch; }
.advice[hidden],
.rhythm.playing .advice,
.panel.compact .advice { display: none; }

/* Rhythm Reader: where most notes were lost, and the offer to work on that place */
.rhythm-weak {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}
.rhythm-weak[hidden],
.rhythm.playing .rhythm-weak { display: none; }

.rhythm-starter p {
  margin: 0;
  max-width: 70ch;
}

#rr-st-text {
  font-size: 1.02rem;
  line-height: 1.55;
}

/* In the Starter only the step, its line and the way out (the level chips) are left on screen. */
.rhythm.starter-on #rr-toggle,
.rhythm.starter-on #rr-new,
.rhythm.starter-on .rhythm-next-label,
.rhythm.starter-on #rr-next,
.rhythm.starter-on #rr-level-hint,
.rhythm.starter-on .rhythm-inline,
.rhythm.starter-on .rhythm-fine,
.rhythm.starter-on .rhythm-settings > :not(:first-child) {
  display: none;
}

/* ---------- Ear Trainer ---------- */
.ear-stage { max-width: 640px; margin: var(--space-3) auto; text-align: center; }
.ear-stage .drill-title { white-space: pre; }
.ear-stage.phrase .drill-title { font-size: clamp(2.6rem, 9vw, 4.5rem); }
.ear-answers { justify-content: center; align-items: center; margin: var(--space-3) 0; }
.ear-answers .chip { min-width: 72px; min-height: 40px; font-weight: 600; }
.ear-answers .chip.right { background: color-mix(in srgb, var(--color-ok) 22%, transparent); border-color: var(--color-ok); color: var(--color-ok); }
.ear-answers .chip.wrong { border-color: var(--color-danger); color: var(--color-danger); }
.ear-answers .chip.shown { background: var(--color-accent-soft); border-color: var(--color-accent); color: var(--color-accent); }
/* on the guitar the names are only what is in play, not something to press */
.ear-answers.ear-legend .chip { pointer-events: none; min-height: 0; min-width: 0; font-weight: 500; }
.ear-actions { justify-content: center; }
.ear-summary { max-width: 640px; margin: var(--space-3) auto; padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-alt); }
.ear-summary p { margin: 0 0 var(--space-3); }
.ear-summary .button-row { justify-content: center; }
.ear-neck summary { cursor: pointer; margin-top: var(--space-4); color: var(--color-text-muted); font-size: 0.9rem; }

/* Phrase Trainer: the count towards the next tempo, and the moment the tempo changes */
.phrase-streak { display: inline-flex; align-items: center; gap: var(--space-2); padding: 3px 10px; border: 1px solid var(--color-border); border-radius: 999px; }
.phrase-streak[hidden] { display: none; }
.phrase-streak .drill-pills i { width: 30px; height: 10px; }
.phrase-streak.pulse { animation: phrase-pulse 0.7s ease-out; }
@keyframes phrase-pulse { from { border-color: var(--color-ok); box-shadow: 0 0 0 5px color-mix(in srgb, var(--color-ok) 35%, transparent); } }
.phrase-status.change #ph-status { padding: 2px 12px; border-radius: 999px; background: var(--color-accent); color: #fff; font-size: 1.15rem; }

/* ---------- Start here ---------- */
#start-here { margin-top: var(--space-4); }
.menu-btn[data-target="start"] { border: 1px solid var(--color-accent); }
.start { max-width: 860px; }
.start-lead { font-size: 1.05rem; margin: var(--space-2) 0 var(--space-4); }
.start-step { margin-bottom: var(--space-4); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-alt); }
.start-step h3 { display: flex; align-items: center; gap: var(--space-3); margin: 0 0 var(--space-3); font-size: 1.15rem; }
.start-step p, .start-step ol { margin: 0 0 var(--space-3); line-height: 1.55; max-width: 72ch; }
.start-step ol { padding-left: 1.3em; }
.start-step li { margin-bottom: var(--space-2); }
.start-num { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--gradient-accent); color: #fff; font-size: 0.95rem; font-weight: 800; }
.start-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); margin-bottom: var(--space-3); }
.start-q { display: inline-grid; place-items: center; width: 18px; height: 18px; border: 1px solid var(--color-border); border-radius: 50%; font-size: 11px; font-weight: 700; color: var(--color-text-muted); }
.start-list { list-style: none; margin: 0 0 var(--space-3); padding: 0; display: grid; gap: var(--space-2); }
.start-list li { display: grid; grid-template-columns: 190px 1fr; gap: var(--space-3); align-items: center; margin: 0; }
.start-list .btn { justify-content: flex-start; text-align: left; }
@media (max-width: 760px) { .start-list li { grid-template-columns: 1fr; gap: var(--space-1); } }

/* ---------- Compact: a trainer run from outside as a short turn (core/exercises.js) ----------
   Only what is played from is left: the head, the stage, what is heard, and the
   tempo where there is one (class "keep-compact": the tempo chosen for the player may be too
   high, and it must be in reach). The settings,
   the buttons that lead back to them, and the links onward belong to whoever is running it.
   So do Stop and the count of how far the turn has come: the runner shows one of each, and the
   trainer's own (class "trainer-toggle", the pills) would be a second. */
.panel.compact .trainer-toggle,
.panel.compact .drill-pills,
.panel.compact .fq-head,
.panel.compact .triads-controls:not(:has(.keep-compact)),
.panel.compact .triads-controls:has(.keep-compact) > :not(.keep-compact),
.panel.compact .rhythm-settings > :not(:has(.keep-compact)),
.panel.compact .rhythm-settings .rhythm-group-title,
.panel.compact .keep-compact .chip-row,
.panel.compact .keep-compact .quiz-hint,
.panel.compact .rhythm-ask,
.panel.compact .rhythm-weak,
.panel.compact .rhythm-starter,
.panel.compact .mode-hint,
.panel.compact .fq-stats,
.panel.compact #rr-new,
.panel.compact #fq-back,
.panel.compact #fq-again,
.panel.compact #st-endbar,
.panel.compact #st-restart,
.panel.compact #st-skip,
.panel.compact .ear-summary .button-row,
.panel.compact [data-act="wide"] {
  display: none !important;
}

/* ---------- Just Play: Picky the Pick, his speech bubble, the session's turns, the path ---------- */
.play { max-width: 900px; }
.play-picky { display: flex; align-items: center; gap: var(--space-4); }
.picky { width: 96px; height: 120px; flex: none; animation: picky-bob 3.2s ease-in-out infinite; }
@keyframes picky-bob { 50% { transform: translateY(-4px); } }
.picky-body { fill: var(--color-accent); stroke: color-mix(in srgb, var(--color-accent) 60%, #000); stroke-width: 3; }
.picky-shine { fill: none; stroke: rgba(255, 255, 255, 0.45); stroke-width: 4; stroke-linecap: round; }
.picky-legs path { fill: none; stroke: color-mix(in srgb, var(--color-accent) 60%, #000); stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }
.picky-eyes circle { fill: #fff; }
.picky-pupils circle { fill: #1b1b2a; }
.picky-mouth path { stroke: #1b1b2a; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.picky-mouth .picky-open { fill: #1b1b2a; }
.play-bubble { position: relative; flex: 1; min-height: 64px; display: flex; align-items: center; padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: 18px; background: var(--color-surface-alt); font-size: 1.05rem; line-height: 1.5; }
.play-bubble::before { content: ""; position: absolute; left: -9px; top: 50%; width: 16px; height: 16px; margin-top: -8px; transform: rotate(45deg); border-left: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); background: var(--color-surface-alt); }
.play-bubble > div > span, .play-next { display: block; }
.play-before { color: var(--color-text-muted); }
.play-next { margin: 2px 0 4px; font-size: 1.45rem; font-weight: 800; line-height: 1.25; color: var(--color-accent); }
.play-strip { display: flex; gap: var(--space-2); margin: var(--space-3) 0 0 calc(96px + var(--space-4)); }
.play-strip[hidden] { display: none; }
.play-turn { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--color-border); border-radius: 50%; background: var(--color-surface-alt); color: var(--color-text-muted); }
.play-turn.now { border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--color-accent-soft); }
.play-turn.ok { border-color: var(--color-ok); }
.play-turn.miss { border-color: var(--scale-b); }
.play-turn.skipped { opacity: 0.45; }
/* what the session was, a line a turn */
.play-recap { list-style: none; margin: var(--space-4) 0 0 calc(96px + var(--space-4)); padding: 0; max-width: 78ch; }
.play-recap[hidden] { display: none; }
.play-recap li { display: grid; grid-template-columns: minmax(0, 1.3fr) 11ch minmax(0, 1.6fr); gap: var(--space-3); align-items: baseline; padding: 6px 0 6px var(--space-3); border-left: 3px solid var(--color-ok); border-bottom: 1px solid var(--color-border); }
.play-recap li.miss { border-left-color: var(--scale-b); }
.play-recap li.skipped { border-left-color: var(--color-border); opacity: 0.6; }
.play-recap-what { font-weight: 600; }
.play-recap-went { font-weight: 700; }
.play-recap li.ok .play-recap-went { color: var(--color-ok); }
.play-recap li.miss .play-recap-went { color: var(--scale-b); }
.play-recap-thing { color: var(--color-text-muted); font-size: 0.92rem; }
.play-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); margin: var(--space-4) 0 0 calc(96px + var(--space-4)); }
.play-about { display: inline-flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-right: var(--space-3); }
.play-path { margin-top: var(--space-5); padding-top: var(--space-4); border-top: 1px solid var(--color-border); }
.play.running .play-path { display: none; } /* while a turn runs the trainer needs the room */
.play-path-title { margin: 0 0 var(--space-3); font-size: 0.95rem; }
.play-track { display: grid; grid-template-columns: 130px 140px 1fr auto; gap: var(--space-3); align-items: center; padding: 6px 0; }
.play-refind { opacity: 0.75; }
.play-track.off { grid-template-columns: 130px auto auto 1fr; justify-items: start; opacity: 0.8; }
.play-track-name { font-weight: 600; }
.play-track-bar { height: 8px; border-radius: 999px; background: var(--color-surface-hover); overflow: hidden; }
.play-track-bar i { display: block; height: 100%; background: var(--gradient-accent); }
.play-track-step { font-size: 0.92rem; }
@media (max-width: 760px) {
  .picky { width: 64px; height: 80px; }
  .play-strip, .play-actions { margin-left: 0; }
  .play-track { grid-template-columns: 1fr 90px; }
  .play-track-step { grid-column: 1 / -1; }
}

/* Phrase Trainer: the tempo change, said big over the tab (it takes no room of its own, so nothing moves) */
.phrase-banner-holder { position: relative; height: 0; z-index: 2; }
.phrase-banner { position: absolute; left: 50%; top: 14px; transform: translateX(-50%); padding: 8px 22px; border-radius: 999px; white-space: pre; font-weight: 800; pointer-events: none; }
.phrase-banner[hidden] { display: none; }
.phrase-banner.soon { font-size: 1.15rem; color: var(--color-accent); background: var(--color-surface); border: 2px solid var(--color-accent); animation: phrase-soon 0.9s ease-in-out infinite; }
@keyframes phrase-soon { 50% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--color-accent) 25%, transparent); } }
.phrase-banner.now { font-size: 2.4rem; line-height: 1.1; color: #fff; background: var(--gradient-accent); box-shadow: 0 6px 30px color-mix(in srgb, var(--color-accent) 55%, transparent); animation: phrase-now 0.3s ease-out; font-variant-numeric: tabular-nums; }
@keyframes phrase-now { from { transform: translateX(-50%) scale(0.6); opacity: 0.2; } }

/* Just Play while a turn runs: Picky is one thin row, and the trainer under him has no title
   bar and none of its explanations, so that a tab of several lines fits on the screen
   (owner, 2026-10-07: with the 1-2-3-4 warm-up the trainer did not show entirely). */
.play.turn { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); max-width: none; }
/* ...and under that row, the whole width: how far the turn has come, and the time it has at most */
.play-progress { flex: 0 0 100%; display: flex; align-items: center; gap: var(--space-3); }
.play-progress[hidden] { display: none; }
.play-progress-text { flex: none; font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.play-progress-text b { font-size: 1.5rem; font-weight: 800; color: var(--color-accent); }
.play-progress-bar { flex: 1; display: flex; gap: 4px; height: 16px; }
.play-progress-bar i { flex: 1; border-radius: 999px; background: var(--color-surface-hover); border: 1px solid var(--color-border); transition: background 0.25s; }
.play-progress-bar i.done { background: var(--gradient-accent); border-color: transparent; }
.play-progress-time { flex: none; margin-left: auto; font-size: 0.9rem; color: var(--color-text-muted); font-variant-numeric: tabular-nums; }
.play.turn .play-picky { flex: 1; min-width: 0; gap: var(--space-2); }
.play.turn .picky { width: 30px; height: 38px; animation: none; }
.play.turn .play-bubble { display: block; min-height: 0; padding: 5px 14px; border-radius: 999px; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.play.turn .play-bubble::before { display: none; }
.play.turn .play-strip { margin: 0; gap: 4px; flex: none; }
.play.turn .play-turn { width: 26px; height: 26px; font-size: 0.8rem; }
.play.turn .play-actions { margin: 0; flex: none; gap: var(--space-2); }
.panel:has(.play.turn) > .panel-head,
.panel.compact > .panel-head,
.panel.compact #ph-what,
.panel.compact .legend,
.panel.compact #st-help {
  display: none !important;
}
.panel:has(.play.turn) .panel-content { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.panel.compact .panel-content { padding-top: var(--space-3); }
@media (max-width: 760px) {
  .play.turn { flex-wrap: wrap; }
  .play.turn .play-strip { display: none; }
}

/* ---------- Text for screen readers only ---------- */
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

/* ---------- Input light (core/inputlight.js): "does it hear me?", and once a day "Tuned today?" ---------- */
#input-light { display: flex; align-items: center; gap: var(--space-2); }
.input-light { display: inline-flex; align-items: center; gap: 8px; padding: 5px 10px; border: 1px solid var(--color-border); border-radius: 999px; background: var(--color-surface-alt); color: var(--color-text-muted); font: inherit; font-size: 0.8rem; white-space: nowrap; cursor: pointer; }
.input-light[hidden], .tuned-ask[hidden] { display: none; }
.input-light:hover { background: var(--color-surface-hover); }
/* the dot: at rest an empty ring; with sound, green and glowing as far as the level goes (--level: 0 to 1) */
.input-light-dot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--color-text-muted); flex: none; transition: box-shadow 0.08s linear, background 0.15s, border-color 0.15s; }
.input-light[data-state="sound"] { color: var(--color-text); }
.input-light[data-state="sound"] .input-light-dot { background: var(--color-ok); border-color: var(--color-ok); box-shadow: 0 0 0 calc(var(--level, 0) * 6px) color-mix(in srgb, var(--color-ok) 35%, transparent); }
.input-light[data-state="silent"] { border-color: var(--color-danger); color: var(--color-text); }
.input-light[data-state="silent"] .input-light-dot { background: var(--color-danger); border-color: var(--color-danger); }
.tuned-ask { display: inline-flex; align-items: center; gap: 6px; padding: 3px 4px 3px 12px; border: 1px solid var(--scale-b); border-radius: 999px; background: var(--color-surface-alt); font-size: 0.8rem; white-space: nowrap; }
.tuned-ask .btn-sm { padding: 3px 9px; border-radius: 999px; }

/* ---------- Space key (core/spacekey.js): the mark on the button that Space presses ---------- */
.space-target::after { content: "space"; display: inline-block; margin-left: 9px; padding: 1px 6px; border: 1px solid currentColor; border-radius: 5px; font: 600 0.62rem/1.4 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; vertical-align: 1px; opacity: 0.75; }
.start-key { display: inline-block; padding: 0 6px; border: 1px solid var(--color-text-muted); border-radius: 5px; font: 600 0.68rem/1.5 var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-text-muted); }
@media (max-width: 760px), (hover: none) { .space-target::after { display: none; } }

/* ---------- Progress (modules/progress) ---------- */
.progress-page { display: grid; gap: var(--space-4); }
.progress-top { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-5) var(--space-6); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-alt); }
.progress-week { min-width: 150px; line-height: 1.5; }
.progress-hero { font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
/* The weeks as columns: thin, rounded at the top, square on the baseline; the value of a week
   shows on hover or focus, the newest always. Values and labels are in text colours. */
.progress-chart { flex: 1; min-width: 280px; max-width: 520px; display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 2px; }
.progress-col { display: grid; grid-template-rows: auto 84px auto; justify-items: center; gap: 4px; border-radius: var(--radius-sm); outline: none; }
.progress-col-track { display: flex; align-items: flex-end; justify-content: center; width: 100%; border-bottom: 1px solid var(--color-border); }
.progress-col-track i { display: block; width: min(24px, 60%); border-radius: 4px 4px 0 0; background: var(--color-accent); opacity: 0.55; }
.progress-col.now .progress-col-track i, .progress-col:hover .progress-col-track i, .progress-col:focus-visible .progress-col-track i { opacity: 1; }
.progress-col-value { font-size: 0.72rem; font-variant-numeric: tabular-nums; white-space: nowrap; color: var(--color-text); visibility: hidden; }
.progress-col.now .progress-col-value, .progress-col:hover .progress-col-value, .progress-col:focus-visible .progress-col-value { visibility: visible; }
.progress-col:focus-visible { box-shadow: var(--shadow-glow); }
.progress-col-week { font-size: 0.7rem; color: var(--color-text-muted); white-space: nowrap; }
.progress-col.now .progress-col-week { color: var(--color-text); font-weight: 600; }
.progress-legend { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-4); margin: 0; font-size: 0.85rem; }
.progress-key { display: inline-flex; align-items: center; gap: 6px; }
.progress-empty { margin: 0; padding: var(--space-4); border: 1px dashed var(--color-border); border-radius: var(--radius-md); }
.progress-areas { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: var(--space-4); }
.progress-card { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-alt); }
.progress-card.untried { background: transparent; }
.progress-card header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--space-1) var(--space-3); }
.progress-card h3 { margin: 0; font-size: 1.05rem; }
.progress-time { font-size: 0.78rem; color: var(--color-text-muted); }
.progress-now { margin: 0; line-height: 1.45; }
.progress-units { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.progress-units li { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.78rem; white-space: nowrap; }
.progress-units li[data-level="0"] { color: var(--color-text-muted); border-style: dashed; }
.progress-units small { color: var(--color-text-muted); font-size: 0.72rem; font-variant-numeric: tabular-nums; }
/* the four words, each with its own dot: an empty ring, then amber, blue, green */
.progress-units i, .progress-key i { width: 9px; height: 9px; border-radius: 50%; border: 2px solid var(--color-text-muted); flex: none; }
[data-level="1"] > i { background: var(--scale-b); border-color: var(--scale-b); }
[data-level="2"] > i { background: var(--color-accent-2); border-color: var(--color-accent-2); }
[data-level="3"] > i { background: var(--color-ok); border-color: var(--color-ok); }
.progress-thing { margin: 0; font-size: 0.9rem; line-height: 1.45; }
.progress-tag { display: inline-block; margin-right: 6px; padding: 1px 7px; border-radius: 999px; background: var(--color-accent-soft); color: var(--color-text); font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; vertical-align: 1px; }
.progress-tag.slipping { background: color-mix(in srgb, var(--scale-b) 28%, transparent); }
.progress-tag.reached { background: color-mix(in srgb, var(--color-ok) 22%, transparent); }
.progress-go { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); margin-top: auto; }
.progress-msg { color: var(--scale-b); font-size: 0.85rem; }
.progress-msg[hidden] { display: none; }
.progress-foot { margin: 0; font-size: 0.8rem; }

/* a menu entry that is not for this account (core/shell.js) */
.menu-btn[hidden] { display: none; }

/* ---------- Development (modules/dev): the owner's list of what to try on a real guitar ---------- */
.dev { display: grid; gap: var(--space-4); }
.dev-lead { margin: 0; line-height: 1.5; }
.dev-bar { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.dev-list { display: grid; gap: var(--space-3); margin: 0; padding: 0; list-style: none; }
.dev-item { display: grid; gap: var(--space-2); padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-left-width: 4px; border-radius: var(--radius-md); background: var(--color-surface-alt); }
.dev-item.works { border-left-color: var(--color-ok); }
.dev-item.problem { border-left-color: var(--color-danger); }
.dev-item.is-hidden { opacity: 0.6; }
.dev-item p { margin: 0; font-size: 0.9rem; line-height: 1.45; }
.dev-head { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); }
.dev-head .muted { font-size: 0.78rem; }
.dev-tag { display: inline-block; min-width: 34px; margin-right: 6px; padding: 1px 7px; border-radius: 999px; background: var(--color-accent-soft); font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; text-align: center; vertical-align: 1px; }
.dev-file { display: inline-block; padding: 0 7px; border: 1px solid var(--color-border); border-radius: 6px; font-family: var(--font-mono); font-size: 0.78rem; white-space: nowrap; }
.dev-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.dev-row .dev-note { flex: 1; min-width: 220px; }
.dev-report { margin: 0; padding: var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 0.8rem; white-space: pre-wrap; user-select: all; }

/* Bend Trainer, "Half or full": the switch for the size said aloud */
.bd-voice { display: inline-flex; align-items: center; gap: 8px; font-size: 0.9rem; }

/* the note that stays on screen while an item of the Development list is tried */
.dev-note-float { position: fixed; right: 16px; bottom: 16px; z-index: 40; width: min(400px, calc(100vw - 32px)); max-height: 60vh; overflow: auto; display: grid; gap: var(--space-2); padding: var(--space-3) var(--space-4); border: 1px solid var(--color-accent); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45); font-size: 0.88rem; line-height: 1.45; }
.dev-note-float[hidden] { display: none; }
.dev-note-float p, .dev-note-float ol { margin: 0; }
.dev-note-float ol { padding-left: 1.3em; display: grid; gap: 4px; }
.dev-note-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-2); }
.dev-note-msg { color: var(--scale-b); }

/* Goals on the Progress page: the line that says them, and the stance of each card */
.progress-goals { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-4); padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-left: 4px solid var(--color-accent); border-radius: var(--radius-md); font-size: 0.9rem; line-height: 1.45; }
.progress-goal { display: flex; flex-wrap: wrap; gap: 6px; padding-top: var(--space-2); border-top: 1px solid var(--color-border); }
.progress-goal .chip { font-size: 0.76rem; padding: 3px 10px; }
.progress-goal { align-items: center; }
.progress-daily { border-top: 0; padding-top: 0; }
.progress-goal-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-text-muted); margin-right: 2px; }
/* no goal chosen yet: the line says so in the accent colour, and the cards' buttons stand out a little */
.progress-goals.unset { background: var(--color-accent-soft); border-color: var(--color-accent); }
.progress-goal.unset .chip { border-color: var(--color-accent); }
.dev-note-float .dev-note { width: 100%; }