/* SolAudioLab Metronome V6.7 PC Density Polish */
.metronome-shell {
  width: min(1180px, 100%) !important;
  max-width: 1180px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  display: grid;
  gap: 12px;
}

.metro-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(320px, 1.02fr);
  gap: 12px;
  min-width: 0;
}

.metro-title {
  margin: 0;
  font-size: clamp(36px, 6vw, 74px);
  line-height: 0.92;
  letter-spacing: -0.075em;
  font-weight: 980;
  color: var(--text);
}

.metro-sub {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 14px;
}

.bpm-card {
  text-align: center;
  display: grid;
  place-items: center;
  min-height: 320px;
  position: relative;
  overflow: hidden;
  min-width: 0;
}

.mode-toggle {
  position: absolute;
  right: 14px;
  top: 14px;
  z-index: 12;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  background: rgba(8, 10, 13, 0.78);
  color: var(--text);
  padding: 7px 10px;
  font-size: 11px;
  font-weight: 950;
  letter-spacing: 0.08em;
  cursor: pointer;
  box-shadow: var(--inset);
}

.mode-toggle:hover {
  border-color: #ff5260;
}

.beat-ring {
  width: min(300px, 78vw);
  height: min(300px, 78vw);
  border-radius: 50%;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 42%, rgba(255,48,64,0.13), transparent 58%),
    linear-gradient(180deg, #222832, #141820);
  display: grid;
  place-items: center;
  box-shadow: var(--inset), 0 16px 40px rgba(0,0,0,0.32);
  transition: transform 0.05s ease, box-shadow 0.05s ease, border-color 0.05s ease;
  padding: 24px;
}

.beat-ring.flash {
  transform: scale(1.025);
  border-color: #ff5260;
  box-shadow: 0 0 0 6px rgba(224, 0, 18, 0.16), 0 16px 46px rgba(0,0,0,0.42);
}

.ring-inner {
  width: 100%;
  display: grid;
  place-items: center;
  gap: 4px;
}

.bpm-number {
  font-size: clamp(74px, 11vw, 122px);
  font-weight: 1000;
  letter-spacing: -0.09em;
  line-height: 0.82;
  color: var(--text);
}

.bpm-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.beat-count {
  color: var(--green);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.beat-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 7px;
  margin-top: 6px;
  min-height: 18px;
  flex-wrap: wrap;
  max-width: 210px;
}

.beat-dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: #3a414d;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.12);
  transition: transform 0.08s ease, background 0.08s ease, box-shadow 0.08s ease, border-color 0.08s ease;
}

.beat-dot.active {
  transform: scale(1.35);
  background: var(--green);
  border-color: rgba(120,255,160,0.75);
  box-shadow: 0 0 12px rgba(66,211,107,0.75);
}

.beat-dot.first.active {
  background: var(--accent-2);
  border-color: rgba(255,100,110,0.8);
  box-shadow: 0 0 14px rgba(255,48,64,0.85);
}

.beat-dot.muted.active {
  background: var(--amber);
  border-color: rgba(255,210,120,0.85);
  box-shadow: 0 0 12px rgba(242,184,75,0.75);
}

.ring-stats {
  display: grid;
  gap: 2px;
  margin-top: 6px;
  min-height: 54px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.02em;
  line-height: 1.25;
}

.ring-stats strong {
  color: var(--text);
  font-weight: 950;
}

.controls-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 12px;
  min-width: 0;
}

.control-panel,
.tool-panel,
.bpm-card {
  min-width: 0;
  max-width: 100%;
}

.control-panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(31,36,44,0.94), rgba(21,24,29,0.96));
  box-shadow: var(--shadow), var(--inset);
  padding: 14px;
  overflow: hidden;
}

.panel-title {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.transport {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  min-width: 0;
}

.btn {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, #303743, #171b22);
  color: var(--text);
  font-weight: 950;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 12px 10px;
  cursor: pointer;
  box-shadow: var(--inset);
  max-width: 100%;
  min-width: 0;
}

.btn:hover {
  border-color: #ff5260;
}

.btn.primary {
  background: linear-gradient(180deg, var(--accent-2), #95000b);
  border-color: #ff5260;
}

.btn.green {
  background: linear-gradient(180deg, #45c765, #176b2d);
  border-color: #60e280;
}

.btn.small {
  padding: 8px 7px;
  font-size: 12px;
}

.btn.danger {
  background: linear-gradient(180deg, #5a1b21, #211014);
  border-color: #76303a;
}

.btn.ghost {
  background: #11151a;
}

.bpm-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
  margin-top: 8px;
  min-width: 0;
}

.input-row {
  display: grid;
  grid-template-columns: 118px 1fr;
  align-items: center;
  gap: 10px;
  margin-top: 9px;
  min-width: 0;
}

.input-row > *,
.input-row > div {
  min-width: 0;
  max-width: 100%;
}

.input-row label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

input,
select,
textarea,
button {
  max-width: 100%;
  min-width: 0;
}

input[type="number"],
input[type="text"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #11151a;
  color: var(--text);
  border-radius: 10px;
  padding: 9px 10px;
  font: inherit;
  font-weight: 800;
}

textarea {
  min-height: 72px;
  resize: vertical;
  font-weight: 700;
  line-height: 1.45;
}

input[type="range"] {
  width: 100%;
  min-width: 0;
  display: block;
  accent-color: var(--accent-2);
}

.checkbox-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.status-line,
.hint-line {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  margin-top: 10px;
}

.status-line strong {
  color: var(--text);
}

.hint-line {
  font-size: 12px;
}

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px;
  min-width: 0;
}

.hidden {
  display: none !important;
}

.inline-help {
  display: block;
  color: var(--dim);
  font-size: 11px;
  font-weight: 800;
  margin-top: 4px;
}

.setlist-add {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) 100px 92px;
  gap: 8px;
  align-items: stretch;
}

.setlist-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.song-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.song-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 9px;
  align-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 13px;
  background: #11151a;
  padding: 10px;
}

.song-title {
  color: var(--text);
  font-weight: 950;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.song-meta {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-top: 2px;
}

.song-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.song-detail {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: rgba(10,13,18,0.58);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px;
}

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

.mini-label {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 5px;
}

.click-mix {
  margin-top: 10px;
  border-top: 1px solid var(--line-soft);
  padding-top: 10px;
}

.seo-section {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.seo-section h2,
.seo-section h3 {
  color: var(--text);
  letter-spacing: -0.045em;
}

.full-mode {
  overflow: hidden;
}

.full-mode .site-nav,
.full-mode .metro-copy,
.full-mode .controls-grid,
.full-mode .advanced-grid,
.full-mode .setlist-section,
.full-mode .seo-section,
.full-mode .site-footer {
  display: none !important;
}

.full-mode .metronome-shell {
  width: 100% !important;
  max-width: 100% !important;
  min-height: 100vh;
  padding: 10px;
}

.full-mode .metro-hero {
  grid-template-columns: 1fr;
  min-height: calc(100vh - 20px);
}

.full-mode .bpm-card {
  min-height: calc(100vh - 20px);
}

.full-mode .beat-ring {
  width: min(82vh, 92vw);
  height: min(82vh, 92vw);
}

.full-mode .bpm-number {
  font-size: min(22vw, 220px);
}

.full-mode .beat-count {
  font-size: clamp(16px, 2.6vw, 28px);
}

.full-mode .beat-dot {
  width: clamp(13px, 1.8vw, 24px);
  height: clamp(13px, 1.8vw, 24px);
}

.full-mode .ring-stats {
  font-size: clamp(12px, 1.6vw, 20px);
}

@media (max-width: 920px) {
  .metro-hero,
  .controls-grid,
  .advanced-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .bpm-card {
    position: sticky;
    top: 8px;
    z-index: 30;
    order: 2;
    min-height: 258px;
    padding: 10px;
  }

  .metro-hero {
    display: flex;
    flex-direction: column;
  }

  .beat-ring {
    width: min(235px, 74vw);
    height: min(235px, 74vw);
    padding: 18px;
  }

  .bpm-number {
    font-size: clamp(64px, 19vw, 96px);
  }

  .ring-stats {
    min-height: 46px;
    font-size: 10.5px;
  }

  .metro-title {
    font-size: clamp(34px, 12vw, 52px);
  }

  .mode-toggle {
    right: 10px;
    top: 10px;
  }
}

@media (max-width: 560px) {
  .transport,
  .bpm-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .input-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .setlist-add {
    grid-template-columns: 1fr;
  }

  .song-row {
    grid-template-columns: 1fr;
  }

  .song-actions {
    justify-content: flex-start;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }
}

/* V3.0.1 mobile sticky display fix
   The BPM display must stick relative to the whole page, not only inside metro-hero.
*/
@media (max-width: 760px) {
  .metronome-shell {
    display: grid;
    grid-template-columns: 1fr;
  }

  .metro-hero {
    display: contents;
  }

  .metro-copy {
    order: 10;
  }

  .bpm-card {
    order: 20;
    position: sticky;
    top: 8px;
    z-index: 80;
    min-height: 258px;
    padding: 10px;
    background: linear-gradient(180deg, rgba(31,36,44,0.98), rgba(21,24,29,0.98));
  }

  .controls-grid {
    order: 30;
  }

  .advanced-grid {
    order: 40;
  }

  .setlist-section {
    order: 50;
  }

  .seo-section {
    order: 60;
  }

  .site-footer {
    order: 70;
  }

  .full-mode .metro-hero {
    display: grid;
  }

  .full-mode .bpm-card {
    position: static;
    order: initial;
  }
}
/* V6.1 TXT Setlist upgrade */
.main-setlist-tools {
  margin-top: 12px;
}

.json-backup-tools {
  align-items: center;
  opacity: 0.86;
}

.backup-label {
  color: var(--dim);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-right: 2px;
}

.setlist-txt-hint {
  margin: 9px 0 0;
  color: var(--muted);
}

.btn.copied {
  border-color: #60e280;
  color: #9bffb3;
}

@media (max-width: 560px) {
  .main-setlist-tools .btn,
  .json-backup-tools .btn {
    flex: 1 1 100%;
  }

  .backup-label {
    width: 100%;
  }
}

/* V6.4 conservative mobile flow fix
   Keeps the original desktop layout intact and only improves mobile density,
   control priority and Stop accessibility. */
.mobile-sticky-metronome {
  display: none;
}

@media (min-width: 761px) {
  .mobile-sticky-metronome {
    display: none !important;
  }
}

/* Desktop safety net: prevent accidental overflow without changing the original layout. */
@media (min-width: 761px) {
  .metro-hero,
  .metro-hero * {
    box-sizing: border-box;
  }

  .metro-title,
  .bpm-number {
    max-width: 100%;
  }

  .metro-title {
    overflow-wrap: normal;
    word-break: keep-all;
  }

  .bpm-card,
  .control-panel,
  .tool-panel {
    min-width: 0;
  }

  input,
  select,
  textarea {
    min-width: 0;
  }
}

/* spacing polish pass for mobile Metronome */
@media (max-width: 760px) {
  .metronome-shell {
    gap: 10px;
    padding-left: 8px;
    padding-right: 8px;
    padding-bottom: 98px;
  }

  .metro-hero {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .metro-copy {
    padding: 13px;
    border-radius: 15px;
  }

  .version-kicker {
    font-size: 10px;
    margin-bottom: 5px;
  }

  .metro-title {
    font-size: clamp(32px, 11vw, 48px);
    line-height: .92;
    letter-spacing: -0.075em;
  }

  .metro-sub {
    margin-top: 8px;
    font-size: 12.5px;
    line-height: 1.4;
    max-width: 360px;
  }

  .intro-counter {
    display: none;
  }

  .bpm-card {
    position: static;
    padding: 12px;
    border-radius: 15px;
    order: 2;
  }

  .beat-ring {
    width: min(206px, 62vw) !important;
    height: min(206px, 62vw) !important;
    padding: 15px !important;
    margin-left: auto;
    margin-right: auto;
  }

  .bpm-number {
    font-size: clamp(58px, 18vw, 84px);
    letter-spacing: -0.075em;
  }

  .bpm-label {
    font-size: 10px;
    margin-top: 2px;
  }

  .beat-count {
    font-size: 11px;
    margin-top: 4px;
  }

  .beat-dots {
    gap: 5px;
    margin-top: 4px;
    min-height: 15px;
  }

  .beat-dot {
    width: 9px;
    height: 9px;
  }

  .ring-stats {
    margin-top: 4px;
    min-height: 36px;
    font-size: 9.5px;
    line-height: 1.18;
  }

  .mode-toggle {
    right: 10px;
    top: 10px;
    padding: 6px 9px;
    font-size: 10px;
  }

  .transport {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 7px;
    margin-top: 10px;
  }

  .transport .btn,
  #startBtn,
  #tapBtn {
    min-height: 58px;
    border-radius: 14px;
  }

  #startBtn {
    font-size: 20px;
  }

  #tapBtn {
    font-size: 12px;
  }

  .bpm-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-top: 8px;
  }

  .bpm-buttons .btn,
  .btn.small {
    min-height: 40px;
    padding: 8px 6px;
  }

  .status-line,
  .hint-line {
    margin-top: 8px;
    font-size: 11.5px;
    line-height: 1.35;
  }

  .control-panel,
  .tool-panel {
    border-radius: 15px;
  }

  .control-panel {
    padding: 12px;
  }

  .panel-title {
    margin-bottom: 8px;
    font-size: 11px;
  }

  .input-row {
    grid-template-columns: 1fr;
    gap: 5px;
    margin-top: 8px;
  }

  .input-row label {
    font-size: 10.5px;
  }

  input[type="number"],
  input[type="text"],
  select,
  textarea {
    min-height: 42px;
    padding: 8px 9px;
    width: 100%;
  }

  input[type="range"] {
    min-height: 32px;
  }

  .two-selects {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
  }

  .setlist-section,
  .trainer-section,
  .practice-section,
  .sound-section {
    margin-top: 10px;
  }

  .setlist-add,
  .trainer-grid,
  .practice-grid,
  .detail-grid {
    grid-template-columns: 1fr !important;
    gap: 7px;
  }

  .setlist-toolbar {
    gap: 6px;
    margin-top: 9px;
  }

  .setlist-toolbar .btn {
    min-height: 40px;
  }

  .song-row {
    grid-template-columns: 1fr;
    gap: 7px;
    padding: 9px;
  }

  .song-actions {
    justify-content: flex-start;
  }

  .seo-section {
    font-size: 12.5px;
  }

  .mobile-sticky-metronome {
    position: fixed;
    z-index: 90;
    left: 8px;
    right: 8px;
    bottom: 8px;
    display: grid;
    grid-template-columns: 64px 70px minmax(0, 1fr) 64px;
    gap: 6px;
    align-items: stretch;
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: 16px;
    background: rgba(13,15,19,0.94);
    backdrop-filter: blur(12px);
    box-shadow: 0 14px 38px rgba(0,0,0,0.45), var(--inset);
    padding: 7px;
  }

  .mobile-bpm-box,
  .mobile-beat-box {
    border: 1px solid var(--line-soft);
    border-radius: 13px;
    background: #0f1318;
    box-shadow: var(--inset);
    padding: 7px 5px;
    display: grid;
    align-content: center;
    text-align: center;
  }

  .mobile-bpm-box span,
  .mobile-beat-box span {
    color: var(--dim);
    font-size: 9px;
    font-weight: 1000;
    letter-spacing: .12em;
    text-transform: uppercase;
  }

  .mobile-bpm-box strong,
  .mobile-beat-box strong {
    color: var(--text);
    font-size: 18px;
    line-height: 1;
    font-weight: 1000;
    margin-top: 3px;
  }

  .mobile-start-button,
  .mobile-tap-button {
    border: 1px solid var(--line);
    border-radius: 13px;
    color: #fff;
    font-weight: 1000;
    letter-spacing: .07em;
    text-transform: uppercase;
    box-shadow: var(--inset);
  }

  .mobile-start-button {
    border-color: #60e280;
    background: linear-gradient(180deg, #45c765, #176b2d);
    font-size: 17px;
  }

  .mobile-start-button.running {
    border-color: #ff7a84;
    background: linear-gradient(180deg, var(--accent-2), #95000b);
  }

  .mobile-tap-button {
    background: linear-gradient(180deg, #303743, #171b22);
    font-size: 12px;
  }
}

@media (max-width: 390px) {
  .metronome-shell {
    padding-left: 7px;
    padding-right: 7px;
  }

  .beat-ring {
    width: min(190px, 60vw) !important;
    height: min(190px, 60vw) !important;
    padding: 13px !important;
  }

  .bpm-number {
    font-size: clamp(52px, 17vw, 76px);
  }

  .ring-stats {
    font-size: 9px;
  }

  .transport {
    grid-template-columns: 1.15fr .85fr;
  }

  .transport .btn,
  #startBtn,
  #tapBtn {
    min-height: 54px;
  }

  .bpm-buttons .btn {
    min-height: 39px;
    padding-left: 4px;
    padding-right: 4px;
  }

  .mobile-sticky-metronome {
    left: 7px;
    right: 7px;
    bottom: 7px;
    grid-template-columns: 58px 60px minmax(0, 1fr) 58px;
    gap: 5px;
    padding: 6px;
  }

  .mobile-bpm-box strong,
  .mobile-beat-box strong {
    font-size: 15px;
  }

  .mobile-start-button {
    font-size: 15px;
  }

  .mobile-tap-button {
    font-size: 11px;
  }
}


/* V6.5 mobile order correction */
@media (max-width: 760px) {
  .metro-copy {
    order: 1;
  }

  .bpm-card {
    order: 2;
  }

  .control-panel {
    order: initial;
  }

  .setlist-section,
  .trainer-section,
  .practice-section,
  .sound-section {
    order: initial;
  }
}


/* V6.6 mobile priority and folded secondary tools */
.metronome-mobile-fold {
  min-width: 0;
}

@media (min-width: 761px) {
  .metronome-mobile-fold {
    display: block;
    border: 0;
    margin: 0;
    padding: 0;
  }

  .metronome-mobile-fold > summary {
    display: none;
  }
}

@media (max-width: 760px) {
  /* Correct top-level mobile priority.
     Do not assign order to every .control-panel, because that pulls Setlist too high. */
  .metro-copy {
    order: 10;
  }

  .bpm-card {
    order: 20;
  }

  .controls-grid {
    order: 30;
  }

  .trainer-fold {
    order: 40;
  }

  .setlist-fold {
    order: 50;
  }

  .seo-section {
    order: 60;
  }

  .site-footer {
    order: 70;
  }

  .metronome-mobile-fold {
    border: 1px solid var(--line);
    border-radius: 15px;
    background: linear-gradient(180deg, rgba(31,36,44,0.94), rgba(21,24,29,0.96));
    box-shadow: var(--shadow), var(--inset);
    overflow: hidden;
  }

  .metronome-mobile-fold > summary {
    min-height: 50px;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 11px;
    padding: 12px;
    user-select: none;
  }

  .metronome-mobile-fold > summary::-webkit-details-marker {
    display: none;
  }

  .metronome-mobile-fold > summary span {
    color: var(--text);
    font-size: 12px;
    font-weight: 1000;
    letter-spacing: .1em;
    text-transform: uppercase;
  }

  .metronome-mobile-fold > summary small {
    color: var(--muted);
    font-size: 10px;
    font-weight: 850;
    text-align: right;
  }

  .metronome-mobile-fold > summary::after {
    content: "+";
    flex: 0 0 auto;
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid rgba(66,211,107,0.25);
    border-radius: 999px;
    color: var(--green);
    font-weight: 1000;
  }

  .metronome-mobile-fold[open] > summary {
    border-bottom: 1px solid var(--line-soft);
  }

  .metronome-mobile-fold[open] > summary::after {
    content: "−";
  }

  .trainer-fold .advanced-grid {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 10px;
  }

  .setlist-fold .setlist-section {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    padding: 10px;
  }

  .trainer-fold .control-panel {
    padding: 10px;
    border-radius: 13px;
  }

  .trainer-fold .input-row,
  .setlist-fold .input-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 390px) {
  .metronome-mobile-fold > summary small {
    display: none;
  }

  .metronome-mobile-fold > summary {
    min-height: 48px;
    padding: 11px;
  }
}


/* V6.7 PC density polish */
@media (min-width: 761px) {
  .metronome-shell {
    gap: 10px;
  }

  .metro-hero {
    gap: 10px;
  }

  .metro-copy,
  .bpm-card,
  .control-panel,
  .setlist-section,
  .seo-section {
    border-radius: 15px;
  }

  .metro-copy {
    padding: 16px 18px;
  }

  .metro-title {
    font-size: clamp(48px, 5.6vw, 68px);
    line-height: .88;
  }

  .metro-sub {
    margin-top: 8px;
    line-height: 1.38;
    font-size: 13px;
  }

  .bpm-card {
    padding: 14px;
  }

  .beat-ring {
    width: min(250px, 27vw);
    height: min(250px, 27vw);
  }

  .bpm-number {
    font-size: clamp(58px, 6.2vw, 84px);
  }

  .controls-grid {
    gap: 8px;
  }

  .control-panel {
    padding: 12px;
  }

  .transport {
    gap: 7px;
  }

  .transport .btn {
    min-height: 42px;
  }

  .bpm-buttons {
    gap: 6px;
    margin-top: 8px;
  }

  .input-row {
    margin-top: 8px;
  }

  .advanced-grid {
    gap: 8px;
  }

  .advanced-grid .control-panel {
    padding: 12px;
  }

  .setlist-section {
    padding: 12px;
  }

  .song-row {
    padding: 8px;
  }
}

@media (min-width: 761px) and (max-width: 1060px) {
  .metro-title {
    font-size: clamp(42px, 5vw, 58px);
  }

  .beat-ring {
    width: 220px;
    height: 220px;
  }
}


/* V6.8 PC folded Practice Trainer
   Practice, Mute Trainer and Speed Trainer start folded on desktop to keep the metronome page compact. */
@media (min-width: 761px) {
  .trainer-fold {
    display: block;
    border: 1px solid var(--line);
    border-radius: var(--at-panel-radius, 16px);
    background: linear-gradient(180deg, rgba(31,36,44,0.94), rgba(21,24,29,0.96));
    box-shadow: var(--shadow), var(--inset);
    overflow: hidden;
  }

  .trainer-fold > summary {
    min-height: 50px;
    cursor: pointer;
    list-style: none;
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    user-select: none;
  }

  .trainer-fold > summary::-webkit-details-marker {
    display: none;
  }

  .trainer-fold > summary span {
    color: var(--text);
    font-size: 12px;
    font-weight: 1000;
    letter-spacing: .1em;
    text-transform: uppercase;
  }

  .trainer-fold > summary small {
    color: var(--muted);
    font-size: 11px;
    font-weight: 850;
    text-align: right;
  }

  .trainer-fold > summary::after {
    content: "+";
    flex: 0 0 auto;
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid rgba(66,211,107,0.25);
    border-radius: 999px;
    color: var(--green);
    font-weight: 1000;
  }

  .trainer-fold[open] > summary {
    border-bottom: 1px solid var(--line-soft);
  }

  .trainer-fold[open] > summary::after {
    content: "−";
  }

  .trainer-fold .advanced-grid {
    padding: 12px;
  }
}


/* V6.9 PC folded Setlist / Song BPM
   Setlist now follows Practice Trainer: closed by default on desktop, open when needed. */
@media (min-width: 761px) {
  .setlist-fold {
    display: block;
    border: 1px solid var(--line);
    border-radius: var(--at-panel-radius, 16px);
    background: linear-gradient(180deg, rgba(31,36,44,0.94), rgba(21,24,29,0.96));
    box-shadow: var(--shadow), var(--inset);
    overflow: hidden;
  }

  .setlist-fold > summary {
    min-height: 50px;
    cursor: pointer;
    list-style: none;
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    user-select: none;
  }

  .setlist-fold > summary::-webkit-details-marker {
    display: none;
  }

  .setlist-fold > summary span {
    color: var(--text);
    font-size: 12px;
    font-weight: 1000;
    letter-spacing: .1em;
    text-transform: uppercase;
  }

  .setlist-fold > summary small {
    color: var(--muted);
    font-size: 11px;
    font-weight: 850;
    text-align: right;
  }

  .setlist-fold > summary::after {
    content: "+";
    flex: 0 0 auto;
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid rgba(66,211,107,0.25);
    border-radius: 999px;
    color: var(--green);
    font-weight: 1000;
  }

  .setlist-fold[open] > summary {
    border-bottom: 1px solid var(--line-soft);
  }

  .setlist-fold[open] > summary::after {
    content: "−";
  }

  .setlist-fold .setlist-section {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    padding: 12px;
  }
}


/* SolAudioLab Mobile Alignment V1 - Metronome */
@media (max-width: 760px) {
  .metronome-shell {
    gap: var(--at-mobile-gap, 10px);
    padding-left: 8px;
    padding-right: 8px;
  }

  .metro-hero,
  .controls-grid,
  .advanced-grid,
  .setlist-section,
  .trainer-fold .advanced-grid,
  .setlist-fold .setlist-section {
    gap: var(--at-mobile-gap, 10px) !important;
  }

  .metro-copy,
  .bpm-card,
  .control-panel,
  .tool-panel,
  .metronome-mobile-fold,
  .trainer-fold,
  .setlist-fold,
  .seo-section {
    border-radius: var(--at-mobile-panel-radius, 15px);
    box-sizing: border-box;
  }

  .metronome-mobile-fold > summary,
  .trainer-fold > summary,
  .setlist-fold > summary {
    min-height: 44px;
  }
}

@media (max-width: 430px) {
  .metronome-shell {
    gap: var(--at-mobile-gap, 9px);
    padding-left: 7px;
    padding-right: 7px;
  }

  .metro-copy,
  .bpm-card,
  .control-panel,
  .tool-panel,
  .metronome-mobile-fold,
  .trainer-fold,
  .setlist-fold,
  .seo-section {
    border-radius: var(--at-mobile-panel-radius, 14px);
  }

  .metronome-mobile-fold > summary,
  .trainer-fold > summary,
  .setlist-fold > summary {
    min-height: 42px;
  }
}


/* SolAudioLab Mobile Alignment V2 - Metronome display and cleanup */
.beat-ring {
  position: relative;
}

.beat-ring .mode-toggle {
  right: 14px;
  top: 14px;
}

@media (max-width: 760px) {
  .beat-ring .mode-toggle {
    right: 10px;
    top: 10px;
  }
}

@media (max-width: 430px) {
  .beat-ring .mode-toggle {
    right: 8px;
    top: 8px;
    padding: 6px 8px;
    font-size: 9.5px;
  }
}


/* SolAudioLab Mobile Alignment V3 - FULL button card-corner position
   The FULL action belongs to the BPM card corner, not to the circular display. */
.bpm-card > .mode-toggle {
  right: 12px;
  top: 12px;
  z-index: 12;
}

@media (max-width: 760px) {
  .bpm-card > .mode-toggle {
    right: 11px;
    top: 11px;
  }
}

@media (max-width: 430px) {
  .bpm-card > .mode-toggle {
    right: 10px;
    top: 10px;
    padding: 6px 8px;
    font-size: 9.5px;
  }
}


/* SolAudioLab Mobile Alignment V10 - Metronome FULL card-corner fix
   FULL belongs to the BPM display card's top-right corner.
   Do not let the mobile BPM card stick to the browser top/menu area. */
@media (max-width: 760px) {
  .bpm-card {
    position: relative !important;
    top: auto !important;
    z-index: 1 !important;
    overflow: hidden !important;
  }

  .bpm-card > .mode-toggle {
    position: absolute !important;
    right: 14px !important;
    top: 14px !important;
    z-index: 20 !important;
  }
}

@media (max-width: 430px) {
  .bpm-card > .mode-toggle {
    right: 12px !important;
    top: 12px !important;
    padding: 6px 8px !important;
    font-size: 9.5px !important;
  }
}

body.full-mode .bpm-card {
  position: relative !important;
  top: auto !important;
}

body.full-mode .bpm-card > .mode-toggle {
  position: absolute !important;
  right: 14px !important;
  top: 14px !important;
  z-index: 20 !important;
}


/* SolAudioLab Mobile Alignment V16 - Metronome mobile FULL safe viewport
   In mobile FULL mode, DETAIL must stay visible inside the actual viewport and
   the BPM circle must not be pushed under the bottom START/TAP bar. */
@media (max-width: 760px) {
  body.full-mode {
    overflow: hidden !important;
    min-height: 100dvh;
  }

  body.full-mode .metronome-shell {
    width: 100% !important;
    max-width: 100% !important;
    min-height: 100dvh !important;
    height: 100dvh !important;
    padding: 8px !important;
    box-sizing: border-box !important;
    display: grid !important;
    grid-template-rows: minmax(0, 1fr) auto !important;
    gap: 0 !important;
    overflow: hidden !important;
  }

  body.full-mode .metro-hero {
    display: grid !important;
    grid-template-columns: 1fr !important;
    min-height: 0 !important;
    height: auto !important;
    gap: 0 !important;
    overflow: hidden !important;
  }

  body.full-mode .bpm-card {
    position: relative !important;
    min-height: 0 !important;
    height: calc(100dvh - 88px) !important;
    padding: 46px 10px 12px !important;
    display: grid !important;
    place-items: center !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  body.full-mode .bpm-card > .mode-toggle {
    position: fixed !important;
    top: max(10px, env(safe-area-inset-top)) !important;
    right: max(12px, env(safe-area-inset-right)) !important;
    z-index: 1200 !important;
    padding: 7px 10px !important;
    border-radius: 999px !important;
    background: rgba(8, 10, 13, .88) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  body.full-mode .beat-ring {
    width: min(76vw, calc(100dvh - 190px)) !important;
    height: min(76vw, calc(100dvh - 190px)) !important;
    max-width: 420px !important;
    max-height: 420px !important;
    padding: 18px !important;
  }

  body.full-mode .bpm-number {
    font-size: clamp(64px, 21vw, 118px) !important;
  }

  body.full-mode .ring-stats {
    min-height: 42px !important;
    font-size: 10.5px !important;
  }

  body.full-mode .mobile-sticky-metronome {
    position: fixed !important;
    left: 8px !important;
    right: 8px !important;
    bottom: max(8px, env(safe-area-inset-bottom)) !important;
    z-index: 1100 !important;
  }
}

@media (max-width: 430px) {
  body.full-mode .metronome-shell {
    padding: 7px !important;
  }

  body.full-mode .bpm-card {
    height: calc(100dvh - 84px) !important;
    padding-top: 44px !important;
  }

  body.full-mode .beat-ring {
    width: min(74vw, calc(100dvh - 184px)) !important;
    height: min(74vw, calc(100dvh - 184px)) !important;
    padding: 16px !important;
  }

  body.full-mode .bpm-card > .mode-toggle {
    top: max(8px, env(safe-area-inset-top)) !important;
    right: max(10px, env(safe-area-inset-right)) !important;
  }

  body.full-mode .mobile-sticky-metronome {
    left: 7px !important;
    right: 7px !important;
    bottom: max(7px, env(safe-area-inset-bottom)) !important;
  }
}

@supports not (height: 100dvh) {
  @media (max-width: 760px) {
    body.full-mode {
      min-height: 100vh;
    }

    body.full-mode .metronome-shell {
      min-height: 100vh !important;
      height: 100vh !important;
    }

    body.full-mode .bpm-card {
      height: calc(100vh - 88px) !important;
    }

    body.full-mode .beat-ring {
      width: min(76vw, calc(100vh - 190px)) !important;
      height: min(76vw, calc(100vh - 190px)) !important;
    }
  }
}


/* SolAudioLab Mobile Alignment V18 - Metronome FULL button 10% offset
   In mobile FULL mode, keep DETAIL visible but place it around 10% down from
   the visible viewport top instead of hugging the browser chrome. */
@media (max-width: 760px) {
  body.full-mode .bpm-card > .mode-toggle {
    top: max(10dvh, calc(env(safe-area-inset-top) + 12px)) !important;
  }
}

@media (max-width: 430px) {
  body.full-mode .bpm-card > .mode-toggle {
    top: max(10dvh, calc(env(safe-area-inset-top) + 10px)) !important;
  }
}

@supports not (height: 100dvh) {
  @media (max-width: 760px) {
    body.full-mode .bpm-card > .mode-toggle {
      top: max(10vh, calc(env(safe-area-inset-top) + 12px)) !important;
    }
  }

  @media (max-width: 430px) {
    body.full-mode .bpm-card > .mode-toggle {
      top: max(10vh, calc(env(safe-area-inset-top) + 10px)) !important;
    }
  }
}

/* V6.8 high-visibility beat display
   Improves beat readability with size, shape, contrast and motion so the
   display remains usable when color differences are difficult to perceive. */
.metronome-shell {
  --metro-visual: #5ee7ff;
  --metro-visual-rgb: 94, 231, 255;
}

body[data-metro-visual="green"] .metronome-shell {
  --metro-visual: #63e681;
  --metro-visual-rgb: 99, 230, 129;
}

body[data-metro-visual="cyan"] .metronome-shell {
  --metro-visual: #5ee7ff;
  --metro-visual-rgb: 94, 231, 255;
}

body[data-metro-visual="amber"] .metronome-shell {
  --metro-visual: #ffc85a;
  --metro-visual-rgb: 255, 200, 90;
}

body[data-metro-visual="white"] .metronome-shell {
  --metro-visual: #f4f7ff;
  --metro-visual-rgb: 244, 247, 255;
}

.bpm-card {
  min-height: 350px;
}

.display-toolbar {
  position: absolute;
  z-index: 12;
  top: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}

.display-toolbar button {
  pointer-events: auto;
}

.mode-toggle {
  position: static;
  inset: auto;
  min-height: 32px;
}

.visual-toggle {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(var(--metro-visual-rgb), 0.5);
  border-radius: 999px;
  background: rgba(8, 10, 13, 0.82);
  color: var(--muted);
  padding: 6px 9px;
  font-size: 9px;
  font-weight: 950;
  letter-spacing: 0.08em;
  cursor: pointer;
  box-shadow: var(--inset);
}

.visual-toggle:hover,
.visual-toggle:focus-visible {
  border-color: var(--metro-visual);
}

.visual-toggle strong {
  color: var(--text);
  font-size: 10px;
  font-weight: 1000;
}

.visual-swatch {
  width: 10px;
  height: 10px;
  flex: 0 0 10px;
  border-radius: 999px;
  background: var(--metro-visual);
  border: 1px solid rgba(255,255,255,0.82);
  box-shadow: 0 0 10px rgba(var(--metro-visual-rgb), 0.72);
}

.beat-ring {
  position: relative;
  width: min(320px, 78vw);
  height: min(320px, 78vw);
  border: 2px solid rgba(var(--metro-visual-rgb), 0.48);
  background:
    radial-gradient(circle at 50% 43%, rgba(var(--metro-visual-rgb), 0.12), transparent 57%),
    linear-gradient(180deg, #222832, #141820);
  box-shadow:
    var(--inset),
    0 0 0 1px rgba(255,255,255,0.04),
    0 0 28px rgba(var(--metro-visual-rgb), 0.08),
    0 16px 40px rgba(0,0,0,0.32);
  transition: transform 0.09s ease, box-shadow 0.09s ease, border-color 0.09s ease;
}

.beat-ring::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(var(--metro-visual-rgb), 0.13);
  border-radius: 50%;
  pointer-events: none;
}

.beat-ring.flash {
  transform: scale(1.022);
  border-color: var(--metro-visual);
  box-shadow:
    0 0 0 5px rgba(var(--metro-visual-rgb), 0.25),
    0 0 34px rgba(var(--metro-visual-rgb), 0.38),
    0 16px 46px rgba(0,0,0,0.42);
}

.beat-ring.flash.downbeat {
  transform: scale(1.035);
  box-shadow:
    0 0 0 4px rgba(var(--metro-visual-rgb), 0.9),
    0 0 0 11px rgba(var(--metro-visual-rgb), 0.2),
    0 0 42px rgba(var(--metro-visual-rgb), 0.48),
    0 16px 48px rgba(0,0,0,0.44);
}

.beat-ring.flash.muted-pulse {
  border-color: var(--amber);
  border-style: dashed;
  box-shadow:
    0 0 0 5px rgba(242,184,75,0.18),
    0 0 28px rgba(242,184,75,0.28),
    0 16px 46px rgba(0,0,0,0.42);
}

.ring-inner {
  position: relative;
  z-index: 1;
  gap: 6px;
}

.bpm-number {
  font-size: clamp(72px, 9.5vw, 112px);
}

.bpm-label {
  font-size: 13px;
  color: #aeb8c7;
}

.beat-count {
  color: var(--metro-visual);
  font-size: 15px;
  min-height: 18px;
  text-shadow: 0 0 12px rgba(var(--metro-visual-rgb), 0.26);
}

.beat-count.is-downbeat {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.beat-count.is-muted {
  color: var(--amber);
  text-shadow: 0 0 12px rgba(242,184,75,0.34);
}

.beat-count.is-count-in {
  letter-spacing: 0.12em;
}

.beat-dots {
  gap: 10px;
  row-gap: 8px;
  margin-top: 8px;
  min-height: 25px;
  max-width: 250px;
}

.beat-dot {
  position: relative;
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
  background: #454d5a;
  border: 2px solid rgba(255,255,255,0.42);
  box-shadow: inset 0 1px 2px rgba(255,255,255,0.18), 0 1px 2px rgba(0,0,0,0.45);
  transition: transform 0.1s ease, background 0.1s ease, box-shadow 0.1s ease, border-color 0.1s ease, border-radius 0.1s ease;
}

/* Beat one is a diamond even while idle, so downbeat position is not color-dependent. */
.beat-dot.first {
  border-radius: 4px;
  transform: rotate(45deg) scale(0.82);
  border-color: rgba(var(--metro-visual-rgb), 0.72);
}

.beat-dot.active {
  transform: scale(1.3);
  background: var(--metro-visual);
  border-color: #ffffff;
  box-shadow:
    0 0 0 3px rgba(255,255,255,0.9),
    0 0 18px rgba(var(--metro-visual-rgb), 0.86);
}

.beat-dot.first.active {
  transform: rotate(45deg) scale(1.18);
  border-radius: 4px;
  background: var(--metro-visual);
  border-color: #ffffff;
  box-shadow:
    0 0 0 3px rgba(255,255,255,0.95),
    0 0 0 7px rgba(var(--metro-visual-rgb), 0.22),
    0 0 22px rgba(var(--metro-visual-rgb), 0.95);
}

/* Muted beats use a hollow dashed marker, not only a different color. */
.beat-dot.muted.active {
  transform: scale(1.28);
  background: #141820;
  border: 3px dashed var(--amber);
  box-shadow:
    0 0 0 3px rgba(255,255,255,0.82),
    0 0 17px rgba(242,184,75,0.72);
}

.beat-dot.first.muted.active {
  transform: rotate(45deg) scale(1.12);
}

.ring-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin-top: 9px;
  min-height: 38px;
  color: #aeb8c7;
  font-size: 12px;
  line-height: 1.3;
}

.ring-stats > div {
  white-space: nowrap;
}

@media (max-width: 760px) {
  .bpm-card {
    min-height: 286px;
    padding: 12px;
  }

  .display-toolbar {
    top: 9px;
    left: 9px;
    right: 9px;
  }

  .visual-toggle,
  .mode-toggle {
    min-height: 31px;
    padding-top: 5px;
    padding-bottom: 5px;
  }

  .beat-ring {
    width: min(230px, 68vw) !important;
    height: min(230px, 68vw) !important;
    padding: 18px !important;
  }

  .bpm-number {
    font-size: clamp(60px, 18vw, 82px);
  }

  .bpm-label {
    font-size: 11px;
    margin-top: 0;
  }

  .beat-count {
    font-size: 13px;
    margin-top: 2px;
  }

  .beat-dots {
    gap: 8px;
    row-gap: 7px;
    margin-top: 6px;
    min-height: 22px;
    max-width: 200px;
  }

  .beat-dot {
    width: 13px;
    height: 13px;
    flex-basis: 13px;
  }

  .ring-stats {
    gap: 3px 8px;
    margin-top: 7px;
    min-height: 38px;
    font-size: 10.5px;
    line-height: 1.25;
  }
}

@media (max-width: 390px) {
  .bpm-card {
    min-height: 280px;
  }

  .beat-ring {
    width: min(226px, 66vw) !important;
    height: min(226px, 66vw) !important;
    padding: 17px !important;
  }

  .bpm-number {
    font-size: clamp(58px, 17vw, 74px);
  }

  .visual-toggle {
    gap: 5px;
    padding-left: 8px;
    padding-right: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .beat-ring,
  .beat-dot {
    transition: none;
  }

  .beat-ring.flash,
  .beat-ring.flash.downbeat {
    transform: none;
  }
}

@media (forced-colors: active) {
  .beat-ring,
  .beat-dot,
  .visual-toggle,
  .mode-toggle {
    forced-color-adjust: auto;
  }

  .beat-dot.active,
  .beat-dot.first.active,
  .beat-dot.muted.active {
    outline: 3px solid CanvasText;
    outline-offset: 3px;
  }
}



/* V6.9 dual-color wide beat display
   Keeps downbeats and regular beats visually distinct without depending on
   color alone, and makes beat travel easier to read across changing meters. */
.metronome-shell {
  --metro-beat: #ff8b72;
  --metro-beat-rgb: 255, 139, 114;
}

body[data-metro-visual="cyan"] .metronome-shell {
  --metro-visual: #5ee7ff;
  --metro-visual-rgb: 94, 231, 255;
  --metro-beat: #ff8b72;
  --metro-beat-rgb: 255, 139, 114;
}

body[data-metro-visual="green"] .metronome-shell {
  --metro-visual: #63e681;
  --metro-visual-rgb: 99, 230, 129;
  --metro-beat: #c794ff;
  --metro-beat-rgb: 199, 148, 255;
}

body[data-metro-visual="amber"] .metronome-shell {
  --metro-visual: #ffc85a;
  --metro-visual-rgb: 255, 200, 90;
  --metro-beat: #72a9ff;
  --metro-beat-rgb: 114, 169, 255;
}

body[data-metro-visual="white"] .metronome-shell {
  --metro-visual: #f4f7ff;
  --metro-visual-rgb: 244, 247, 255;
  --metro-beat: #b49aff;
  --metro-beat-rgb: 180, 154, 255;
}

/* A split swatch previews the downbeat/regular-beat color pair. */
.visual-swatch {
  background: linear-gradient(135deg,
    var(--metro-visual) 0%,
    var(--metro-visual) 46%,
    var(--metro-beat) 54%,
    var(--metro-beat) 100%);
  box-shadow:
    -2px 0 8px rgba(var(--metro-visual-rgb), 0.5),
    2px 0 8px rgba(var(--metro-beat-rgb), 0.5);
}

/* Regular beats use the paired contrast color; beat one keeps the selected color. */
.beat-ring.flash {
  border-color: var(--metro-beat);
  box-shadow:
    0 0 0 5px rgba(var(--metro-beat-rgb), 0.25),
    0 0 34px rgba(var(--metro-beat-rgb), 0.4),
    0 16px 46px rgba(0,0,0,0.42);
}

.beat-ring.flash.downbeat {
  border-color: var(--metro-visual);
  box-shadow:
    0 0 0 4px rgba(var(--metro-visual-rgb), 0.9),
    0 0 0 11px rgba(var(--metro-visual-rgb), 0.2),
    0 0 42px rgba(var(--metro-visual-rgb), 0.48),
    0 16px 48px rgba(0,0,0,0.44);
}

.beat-count.is-regular-beat {
  color: var(--metro-beat);
  text-shadow: 0 0 12px rgba(var(--metro-beat-rgb), 0.32);
}

/* BPM is reference information, so it gives more room to the moving beat display. */
.ring-inner {
  gap: 7px;
}

.bpm-number {
  font-size: clamp(58px, 7.6vw, 90px);
  line-height: 0.88;
}

.beat-dots {
  --metro-dot-size: 15px;
  gap: 0;
  row-gap: 10px;
  margin-top: 10px;
  min-height: 25px;
}

/* Two through seven beats always share the seven-beat left/right endpoints. */
.beat-dots[data-layout="wide"] {
  display: grid;
  width: 170px;
  max-width: 170px;
  grid-template-columns: repeat(var(--beat-count), var(--metro-dot-size));
  justify-content: space-between;
  align-items: center;
}

/* Nine beats retain a clear single-row scan. */
.beat-dots[data-layout="nine"] {
  display: grid;
  width: 218px;
  max-width: 218px;
  grid-template-columns: repeat(9, var(--metro-dot-size));
  justify-content: space-between;
  align-items: center;
}

/* Twelve beats are deliberately grouped as six over six. */
.beat-dots[data-layout="six-by-two"] {
  display: grid;
  width: 170px;
  max-width: 170px;
  grid-template-columns: repeat(6, var(--metro-dot-size));
  justify-content: space-between;
  align-items: center;
  min-height: 40px;
}

.beat-dot {
  width: var(--metro-dot-size);
  height: var(--metro-dot-size);
  flex: 0 0 var(--metro-dot-size);
  border-radius: 999px;
  background: rgba(var(--metro-beat-rgb), 0.18);
  border-color: rgba(var(--metro-beat-rgb), 0.62);
}

/* Beat one returns to a circle, but retains a center mark and outer halo. */
.beat-dot.first {
  border-radius: 999px;
  transform: none;
  background: rgba(var(--metro-visual-rgb), 0.2);
  border-color: rgba(var(--metro-visual-rgb), 0.88);
  box-shadow:
    inset 0 1px 2px rgba(255,255,255,0.18),
    0 0 0 2px rgba(var(--metro-visual-rgb), 0.18);
}

.beat-dot.first::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--metro-visual);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 6px rgba(var(--metro-visual-rgb), 0.75);
}

.beat-dot.active {
  transform: scale(1.3);
  background: var(--metro-beat);
  border-color: #ffffff;
  box-shadow:
    0 0 0 3px rgba(255,255,255,0.9),
    0 0 18px rgba(var(--metro-beat-rgb), 0.88);
}

.beat-dot.first.active {
  transform: scale(1.34);
  border-radius: 999px;
  background: var(--metro-visual);
  border-color: #ffffff;
  box-shadow:
    0 0 0 3px rgba(255,255,255,0.95),
    0 0 0 7px rgba(var(--metro-visual-rgb), 0.22),
    0 0 22px rgba(var(--metro-visual-rgb), 0.95);
}

.beat-dot.first.active::after {
  background: #ffffff;
  box-shadow: none;
}

.beat-dot.first.muted.active {
  transform: scale(1.28);
  border-radius: 999px;
}

.beat-dot.muted.active::after {
  opacity: 0;
}

.ring-stats {
  margin-top: 12px;
}

.full-mode .bpm-number {
  font-size: min(17.6vw, 176px);
}

.full-mode .beat-dots {
  --metro-dot-size: clamp(13px, 1.8vw, 24px);
}

.full-mode .beat-dots[data-layout="wide"],
.full-mode .beat-dots[data-layout="six-by-two"] {
  width: min(34vw, 360px);
  max-width: min(34vw, 360px);
}

.full-mode .beat-dots[data-layout="nine"] {
  width: min(50vw, 520px);
  max-width: min(50vw, 520px);
}

@media (max-width: 760px) {
  .ring-inner {
    gap: 5px;
  }

  .bpm-number {
    font-size: clamp(48px, 14.4vw, 66px);
    line-height: 0.9;
  }

  .beat-dots {
    --metro-dot-size: 13px;
    row-gap: 8px;
    margin-top: 8px;
    min-height: 22px;
  }

  .beat-dots[data-layout="wide"] {
    width: 158px;
    max-width: 158px;
  }

  .beat-dots[data-layout="nine"] {
    width: 184px;
    max-width: 184px;
  }

  .beat-dots[data-layout="six-by-two"] {
    width: 150px;
    max-width: 150px;
    min-height: 34px;
  }

  .ring-stats {
    margin-top: 9px;
  }
}

@media (max-width: 390px) {
  .bpm-number {
    font-size: clamp(46px, 13.6vw, 60px);
  }
}

/* V46 metronome ring spacing polish
   Keeps the ring readable at 390px and wide layouts without changing timing or audio behavior. */
.visual-toggle {
  gap: 6px;
  padding-left: 9px;
  padding-right: 10px;
}

.visual-toggle strong {
  font-size: 10px;
  letter-spacing: 0.1em;
}

/* The BPM unit is already clear from context; lower the value slightly into the ring. */
.bpm-number {
  transform: translateY(7px);
  margin-bottom: 5px;
}

/* Practice and Speed get one centered line each on every viewport. */
.ring-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
  align-items: center;
  gap: 5px;
  width: min(190px, 82%);
  margin-top: 10px;
  min-height: 43px;
  text-align: center;
  line-height: 1.2;
}

.ring-stats > div {
  width: 100%;
  text-align: center;
}

#ringBar:empty {
  display: none;
}

/* Give the six-over-six meter a clearer visual break between rows. */
.beat-dots[data-layout="six-by-two"] {
  row-gap: 16px;
  min-height: 46px;
}

.full-mode .bpm-number {
  transform: translateY(10px);
}

.full-mode .ring-stats {
  width: min(300px, 56vw);
  gap: 7px;
  min-height: 52px;
}

.full-mode .beat-dots[data-layout="six-by-two"] {
  row-gap: clamp(16px, 2vh, 24px);
}

@media (max-width: 760px) {
  .visual-toggle {
    gap: 5px;
    padding-left: 8px;
    padding-right: 9px;
  }

  .bpm-number {
    transform: translateY(6px);
    margin-bottom: 4px;
  }

  .ring-stats {
    width: min(166px, 82%);
    gap: 4px;
    margin-top: 8px;
    min-height: 39px;
    font-size: 10.5px;
  }

  .beat-dots[data-layout="six-by-two"] {
    row-gap: 13px;
    min-height: 39px;
  }
}

@media (max-width: 390px) {
  .bpm-number {
    transform: translateY(5px);
  }

  .ring-stats {
    width: min(158px, 80%);
    gap: 3px;
    margin-top: 7px;
    min-height: 37px;
    font-size: 10px;
  }

  .beat-dots[data-layout="six-by-two"] {
    row-gap: 12px;
    min-height: 38px;
  }
}