:root {
  color-scheme: dark;
  --bg: #07131f;
  --bg-deep: #04101a;
  --surface: rgba(14, 31, 47, 0.92);
  --surface-2: rgba(19, 40, 59, 0.95);
  --surface-3: rgba(27, 51, 72, 0.88);
  --line: rgba(147, 177, 204, 0.16);
  --line-strong: rgba(147, 177, 204, 0.28);
  --text: #f2f8fc;
  --muted: #9fb2c4;
  --accent: #55d7b5;
  --accent-strong: #75ecd0;
  --accent-soft: rgba(85, 215, 181, 0.14);
  --blue: #6ea9ff;
  --gold: #f1c66d;
  --danger: #ff7b88;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --radius-lg: 24px;
  --radius-md: 17px;
  --radius-sm: 12px;
  --sidebar-width: 238px;
  --topbar-height: 78px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at 80% -20%, rgba(63, 126, 168, 0.25), transparent 34rem),
    radial-gradient(circle at -20% 80%, rgba(47, 151, 126, 0.16), transparent 34rem),
    var(--bg);
  color: var(--text);
}

body {
  min-width: 320px;
  overflow-x: hidden;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

button,
select,
input {
  border: 0;
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  grid-template-rows: var(--topbar-height) minmax(0, 1fr);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  grid-column: 1 / -1;
  grid-row: 1;
  min-height: var(--topbar-height);
  padding: 0 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(4, 16, 26, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px);
}

.brand-block,
.topbar-actions,
.profile-chip,
.system-indicator,
.page-header,
.panel-heading,
.live-status-row,
.keyboard-status,
.lesson-meta,
.song-actions,
.teacher-actions,
.lesson-actions {
  display: flex;
  align-items: center;
}

.brand-block {
  gap: 13px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  padding: 8px;
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(85, 215, 181, 0.22), rgba(110, 169, 255, 0.18));
  border: 1px solid var(--line-strong);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.brand-mark span {
  width: 4px;
  border-radius: 999px;
  background: var(--accent);
}

.brand-mark span:nth-child(1) { height: 10px; }
.brand-mark span:nth-child(2) { height: 20px; }
.brand-mark span:nth-child(3) { height: 15px; }

.brand-name {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-subtitle,
.profile-copy small,
.system-indicator small {
  color: var(--muted);
  font-size: 12px;
}

.topbar-actions {
  gap: 10px;
}

.icon-button,
.profile-chip {
  background: var(--surface);
  border: 1px solid var(--line);
  cursor: pointer;
}

.icon-button {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  font-size: 19px;
}

.profile-chip {
  gap: 10px;
  min-height: 48px;
  padding: 5px 12px 5px 6px;
  border-radius: 16px;
  text-align: left;
}

.profile-avatar,
.profile-avatar-large {
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--accent), #327f86);
  color: #03231c;
  font-weight: 900;
}

.profile-avatar {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  font-size: 12px;
}

.profile-copy {
  display: grid;
  gap: 2px;
}

.sidebar {
  position: sticky;
  top: var(--topbar-height);
  height: calc(100vh - var(--topbar-height));
  grid-column: 1;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
  border-right: 1px solid var(--line);
  background: rgba(7, 19, 31, 0.72);
  backdrop-filter: blur(16px);
}

.desktop-nav {
  display: grid;
  gap: 6px;
}

.nav-button {
  width: 100%;
  padding: 13px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 13px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  transition: 160ms ease;
}

.nav-button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.nav-button.active {
  color: var(--text);
  background: linear-gradient(90deg, var(--accent-soft), rgba(110, 169, 255, 0.07));
  box-shadow: inset 3px 0 var(--accent);
}

.nav-icon {
  width: 24px;
  text-align: center;
  color: var(--accent);
  font-size: 18px;
}

.sidebar-footer {
  margin-top: auto;
}

.system-indicator {
  gap: 10px;
  padding: 13px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
}

.system-indicator > div {
  display: grid;
  gap: 2px;
}

.status-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(85, 215, 181, 0.8);
}

.main-content {
  grid-column: 2;
  grid-row: 2;
  width: 100%;
  max-width: 1540px;
  min-height: calc(100vh - var(--topbar-height));
  padding: 34px clamp(20px, 3vw, 48px) 70px;
  margin: 0 auto;
  outline: none;
}

.page-header {
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.page-header h1 {
  margin: 5px 0 8px;
  font-size: clamp(31px, 4vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.page-header p:not(.eyebrow) {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.page-header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.primary-button,
.secondary-button,
.danger-button {
  min-height: 43px;
  padding: 0 17px;
  border-radius: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: 150ms ease;
}

.primary-button {
  background: linear-gradient(145deg, var(--accent-strong), var(--accent));
  color: #05231d;
  box-shadow: 0 12px 30px rgba(51, 173, 143, 0.18);
}

.secondary-button {
  background: var(--surface-3);
  color: var(--text);
  border: 1px solid var(--line-strong);
}

.danger-button {
  background: rgba(255, 123, 136, 0.12);
  color: #ffabb4;
  border: 1px solid rgba(255, 123, 136, 0.28);
}

.primary-button:hover,
.secondary-button:hover,
.danger-button:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.hero-grid,
.section-grid,
.worship-layout,
.teacher-layout,
.lesson-workspace,
.profile-layout,
.practice-layout {
  display: grid;
  gap: 18px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.8fr);
}

.hero-card,
.panel,
.metric-card,
.lesson-card,
.song-card {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-card {
  min-height: 255px;
  padding: 28px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  position: relative;
}

.primary-hero {
  background:
    radial-gradient(circle at 90% 20%, rgba(85, 215, 181, 0.25), transparent 20rem),
    linear-gradient(140deg, rgba(15, 43, 59, 0.98), rgba(8, 25, 38, 0.98));
}

.worship-hero {
  background:
    radial-gradient(circle at 100% 10%, rgba(241, 198, 109, 0.18), transparent 18rem),
    linear-gradient(140deg, rgba(37, 35, 45, 0.98), rgba(14, 27, 40, 0.98));
}

.hero-card h2,
.panel h2,
.lesson-card h2,
.song-card h2 {
  margin: 7px 0 10px;
  letter-spacing: -0.025em;
}

.hero-card h2 {
  font-size: clamp(25px, 3vw, 38px);
}

.hero-card p {
  max-width: 650px;
  color: var(--muted);
  line-height: 1.6;
}

.hero-card .primary-button,
.hero-card .secondary-button {
  align-self: flex-start;
}

.progress-track {
  height: 8px;
  margin: 20px 0 9px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--blue));
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.metric-card {
  padding: 19px;
  border-radius: var(--radius-md);
  background: var(--surface);
}

.metric-card span,
.metric-card small {
  display: block;
  color: var(--muted);
}

.metric-card strong {
  display: block;
  margin: 7px 0 5px;
  font-size: 27px;
}

.section-grid {
  grid-template-columns: 1.25fr 0.75fr;
  margin-top: 18px;
}

.panel {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--surface), rgba(10, 25, 38, 0.94));
}

.panel-heading {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.panel-heading h2 {
  margin-bottom: 0;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.action-tile {
  min-height: 140px;
  padding: 18px;
  display: grid;
  align-content: center;
  gap: 7px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  cursor: pointer;
  text-align: left;
}

.action-tile:hover {
  background: var(--accent-soft);
  border-color: rgba(85, 215, 181, 0.28);
}

.action-tile > span {
  color: var(--accent);
  font-size: 24px;
}

.action-tile small,
.routine-list small {
  color: var(--muted);
  line-height: 1.45;
}

.routine-list,
.instruction-list,
.privacy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.routine-list {
  display: grid;
  gap: 15px;
}

.routine-list li,
.instruction-list li {
  display: flex;
  align-items: flex-start;
  gap: 13px;
}

.routine-list li > span,
.instruction-list li > span {
  width: 29px;
  height: 29px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 900;
}

.routine-list li > div {
  display: grid;
  gap: 4px;
}

.lesson-grid,
.song-grid {
  display: grid;
  gap: 14px;
}

.lesson-card,
.song-card {
  padding: 21px;
  border-radius: 19px;
  background: var(--surface);
}

.lesson-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
}

.lesson-card.completed {
  border-color: rgba(85, 215, 181, 0.32);
}

.lesson-number {
  color: rgba(255, 255, 255, 0.18);
  font-size: 31px;
  font-weight: 900;
}

.lesson-copy p,
.song-card p {
  color: var(--muted);
  line-height: 1.55;
}

.lesson-meta {
  gap: 13px;
  color: var(--muted);
  font-size: 13px;
}

.badge,
.live-pill {
  display: inline-flex;
  align-items: center;
  width: max-content;
  min-height: 27px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.lesson-workspace {
  grid-template-columns: 0.9fr 1.1fr;
}

.instruction-list {
  display: grid;
  gap: 17px;
}

.instruction-list p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.lesson-actions,
.teacher-actions {
  gap: 10px;
  margin-top: 24px;
}

.practice-layout {
  grid-template-columns: minmax(300px, 0.7fr) minmax(0, 1.3fr);
}

.live-status-row {
  justify-content: space-between;
  color: var(--muted);
}

.live-pill.active {
  background: rgba(85, 215, 181, 0.2);
  box-shadow: 0 0 24px rgba(85, 215, 181, 0.16);
}

.chord-display {
  min-height: 220px;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
}

.chord-display span,
.chord-display small {
  color: var(--muted);
}

.chord-display strong {
  margin: 8px 0;
  font-size: clamp(62px, 10vw, 110px);
  line-height: 1;
  letter-spacing: -0.07em;
  color: var(--accent-strong);
  text-shadow: 0 0 45px rgba(85, 215, 181, 0.22);
}

.practice-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.practice-metrics > div {
  padding-top: 15px;
  display: grid;
  gap: 4px;
  text-align: center;
}

.practice-metrics span {
  color: var(--muted);
  font-size: 12px;
}

.practice-metrics strong {
  font-size: 21px;
}

.note-roll {
  min-height: 310px;
  display: grid;
  align-content: end;
  gap: 8px;
  overflow: hidden;
}

.note-roll-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 10px;
}

.note-roll-item span {
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.note-roll-item i {
  display: block;
  height: 12px;
  width: calc(18% + (var(--velocity) * 72%));
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--accent));
  opacity: calc(1 - (var(--note-index) * 0.045));
}

.keyboard-panel {
  margin-top: 18px;
}

.keyboard-status {
  gap: 9px;
  color: var(--muted);
  font-size: 13px;
}

.status-dot.connected {
  background: var(--accent);
}

.keyboard {
  position: relative;
  height: 230px;
  user-select: none;
  touch-action: none;
}

.white-keys {
  height: 100%;
  display: grid;
  grid-template-columns: repeat(14, minmax(0, 1fr));
  gap: 2px;
}

.piano-key {
  cursor: pointer;
  transition: 70ms ease;
}

.white-key {
  position: relative;
  border-radius: 0 0 8px 8px;
  background: linear-gradient(#f7f9fb, #d9e0e5);
  color: #183042;
  box-shadow: inset 0 -6px 0 rgba(0, 0, 0, 0.07);
}

.white-key span {
  position: absolute;
  bottom: 11px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  font-weight: 800;
}

.black-key {
  position: absolute;
  top: 0;
  width: 4.8%;
  height: 62%;
  transform: translateX(-50%);
  z-index: 2;
  border-radius: 0 0 7px 7px;
  background: linear-gradient(#17222c, #02070a);
  box-shadow: inset 0 -5px 0 rgba(255, 255, 255, 0.05), 0 6px 12px rgba(0, 0, 0, 0.35);
}

.piano-key.active,
.piano-key:active {
  background: linear-gradient(var(--accent-strong), var(--accent));
  color: #06231e;
  transform: translateY(2px);
}

.black-key.active,
.black-key:active {
  transform: translateX(-50%) translateY(2px);
}

.worship-layout,
.teacher-layout {
  grid-template-columns: 1.2fr 0.8fr;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 13px;
}

.form-grid label,
.settings-list label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

select,
input[type="number"] {
  min-height: 45px;
  padding: 0 12px;
  border-radius: 12px;
  background: var(--surface-3);
  color: var(--text);
  border: 1px solid var(--line-strong);
}

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

.chord-sequence,
.teacher-chords,
.mini-progression {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chord-sequence {
  margin-top: 25px;
}

.chord-token,
.teacher-chord {
  min-width: 82px;
  min-height: 82px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 3px;
  border-radius: 16px;
  background: linear-gradient(145deg, var(--surface-3), rgba(18, 36, 52, 0.9));
  border: 1px solid var(--line-strong);
}

.chord-token small,
.teacher-chord small {
  color: var(--muted);
}

.chord-token strong,
.teacher-chord strong {
  font-size: 23px;
}

.teacher-chord {
  cursor: pointer;
}

.teacher-chord:hover {
  border-color: rgba(85, 215, 181, 0.4);
  background: var(--accent-soft);
}

.checklist,
.settings-list {
  display: grid;
  gap: 11px;
}

.check-item,
.setting-row {
  padding: 14px;
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.check-item input {
  accent-color: var(--accent);
}

.song-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.song-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
}

.song-card.selected {
  border-color: rgba(85, 215, 181, 0.34);
  box-shadow: 0 22px 70px rgba(38, 118, 99, 0.16);
}

.song-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 25px;
}

.song-actions {
  grid-column: 1 / -1;
  justify-content: flex-end;
  gap: 9px;
}

.mini-progression span {
  padding: 5px 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted);
  font-size: 12px;
}

.lesson-progress-list,
.session-list {
  display: grid;
}

.lesson-progress-row,
.session-row {
  display: grid;
  align-items: center;
  gap: 11px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.lesson-progress-row {
  grid-template-columns: auto minmax(0, 1fr) auto;
}

.session-row {
  grid-template-columns: minmax(0, 1fr) auto auto;
}

.lesson-progress-row > div,
.session-row > div {
  display: grid;
  gap: 3px;
}

.lesson-progress-row small,
.lesson-progress-row > span:last-child,
.session-row small,
.session-row > span {
  color: var(--muted);
  font-size: 12px;
}

.complete-dot,
.pending-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.complete-dot {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(85, 215, 181, 0.55);
}

.pending-dot {
  border: 1px solid var(--line-strong);
}

.empty-state {
  min-height: 220px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  text-align: center;
  color: var(--muted);
}

.empty-state.compact {
  min-height: 180px;
}

.empty-state strong {
  color: var(--text);
}

.empty-state .primary-button {
  margin-top: 8px;
}

.profile-layout {
  grid-template-columns: 0.8fr 1.2fr;
}

.profile-card-large {
  grid-row: span 2;
  align-content: center;
  justify-items: center;
  text-align: center;
}

.profile-avatar-large {
  width: 112px;
  height: 112px;
  margin-bottom: 18px;
  border-radius: 34px;
  font-size: 34px;
}

.profile-card-large p {
  color: var(--muted);
}

.setting-row {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.setting-row span {
  display: grid;
  gap: 4px;
}

.setting-row small {
  color: var(--muted);
  font-weight: 400;
}

.setting-row input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--accent);
}

.privacy-list {
  display: grid;
  gap: 13px;
  color: var(--muted);
}

.privacy-list li {
  display: flex;
  gap: 10px;
  line-height: 1.5;
}

.privacy-list span {
  color: var(--accent);
  font-weight: 900;
}

.mobile-nav {
  display: none;
}

.toast-region {
  position: fixed;
  z-index: 100;
  right: 22px;
  bottom: 22px;
}

.toast {
  max-width: 360px;
  padding: 14px 17px;
  border-radius: 14px;
  background: rgba(8, 25, 38, 0.96);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  color: var(--text);
}

.toast-success {
  border-color: rgba(85, 215, 181, 0.42);
}

.toast-error {
  border-color: rgba(255, 123, 136, 0.42);
}

.focus-mode .sidebar,
.focus-mode .brand-subtitle,
.focus-mode .profile-copy {
  display: none;
}

.focus-mode .app-shell {
  grid-template-columns: 1fr;
}

.focus-mode .main-content {
  grid-column: 1;
}

@media (max-width: 1100px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid,
  .section-grid,
  .worship-layout,
  .teacher-layout,
  .lesson-workspace,
  .profile-layout,
  .practice-layout {
    grid-template-columns: 1fr;
  }

  .action-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .profile-card-large {
    grid-row: auto;
  }
}

@media (max-width: 820px) {
  :root {
    --topbar-height: 68px;
  }

  .app-shell {
    display: block;
    padding-bottom: 78px;
  }

  .topbar {
    min-height: var(--topbar-height);
    padding: 0 14px;
  }

  .brand-subtitle,
  .profile-copy {
    display: none;
  }

  .profile-chip {
    padding-right: 6px;
  }

  .sidebar {
    display: none;
  }

  .main-content {
    min-height: calc(100vh - var(--topbar-height));
    padding: 24px 14px 42px;
  }

  .mobile-nav {
    position: fixed;
    z-index: 60;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: 72px;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    padding:
      8px
      max(6px, env(safe-area-inset-right))
      calc(8px + env(safe-area-inset-bottom))
      max(6px, env(safe-area-inset-left));
    background: rgba(4, 16, 26, 0.95);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(20px);
  }

  .mobile-nav-button {
    min-width: 0;
    padding: 6px 2px;
    display: grid;
    place-items: center;
    gap: 3px;
    border-radius: 10px;
    background: transparent;
    color: var(--muted);
  }

  .mobile-nav-button span {
    font-size: 17px;
  }

  .mobile-nav-button small {
    max-width: 100%;
    overflow: hidden;
    font-size: 9px;
    text-overflow: ellipsis;
  }

  .mobile-nav-button.active {
    background: var(--accent-soft);
    color: var(--accent);
  }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .page-header-actions .primary-button,
  .page-header-actions .secondary-button {
    flex: 1;
  }

  .hero-card {
    min-height: 230px;
    padding: 22px;
  }

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

  .lesson-card {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .lesson-card > button {
    grid-column: 1 / -1;
  }

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

  .keyboard {
    height: 185px;
  }

  .white-key span {
    font-size: 9px;
  }

  .toast-region {
    left: 14px;
    right: 14px;
    bottom: 88px;
  }

  .toast {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .brand-name {
    font-size: 15px;
  }

  .icon-button {
    width: 38px;
    height: 38px;
  }

  .metric-grid,
  .action-grid {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 35px;
  }

  .panel,
  .hero-card,
  .lesson-card,
  .song-card {
    border-radius: 18px;
  }

  .practice-metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  .chord-display strong {
    font-size: 72px;
  }

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

  .session-row > span:last-child {
    grid-column: 1 / -1;
  }

  .mobile-nav {
    overflow-x: auto;
    grid-template-columns: repeat(7, minmax(58px, 1fr));
  }
}

/* KEYMENTOR_LANDSCAPE_PIANO_BEGIN v1.2.0 */
.km-mic-dock {
  position: fixed;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(82px, calc(env(safe-area-inset-bottom) + 72px));
  z-index: 1200;
  display: grid;
  justify-items: end;
  gap: 7px;
  pointer-events: none;
}

.km-mic-button,
.km-mic-status {
  pointer-events: auto;
}

.km-mic-button {
  min-width: 74px;
  height: 42px;
  border: 1px solid rgba(150, 211, 255, 0.22);
  border-radius: 14px;
  background: rgba(7, 19, 31, 0.92);
  color: #f7fbff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-weight: 700;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.km-mic-button.is-active {
  border-color: rgba(93, 225, 185, 0.74);
  box-shadow:
    0 0 0 3px rgba(93, 225, 185, 0.12),
    0 12px 30px rgba(0, 0, 0, 0.28);
}

.km-mic-icon {
  font-size: 18px;
  line-height: 1;
}

.km-mic-status {
  max-width: min(240px, 72vw);
  padding: 7px 10px;
  border-radius: 10px;
  background: rgba(7, 19, 31, 0.88);
  color: rgba(240, 248, 255, 0.84);
  font-size: 12px;
  line-height: 1.25;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(16px);
}

/* Reduce the visual piano footprint without affecting touch accuracy. */
.piano,
.piano-keyboard,
.keyboard,
.virtual-piano,
.practice-piano,
[data-piano],
[aria-label*="Piano"],
[aria-label*="Keyboard"] {
  max-height: clamp(150px, 26vh, 250px);
}

.piano-key,
.white-key,
.keyboard-key,
[data-piano-key] {
  min-height: clamp(112px, 21vh, 210px);
}

.black-key,
.piano-key.black,
.keyboard-key.black {
  min-height: clamp(70px, 13vh, 132px);
}

/* Phones and tablets: practice is optimized for landscape. */
@media (max-width: 1100px) and (orientation: landscape) {
  .main-content {
    padding-top: 12px;
    padding-bottom: max(14px, env(safe-area-inset-bottom));
  }

  .practice-layout,
  .worship-layout,
  .practice-grid,
  .worship-grid,
  .lesson-workspace,
  .keyboard-workspace {
    grid-template-columns: minmax(0, 1.45fr) minmax(220px, 0.55fr);
    align-items: start;
    gap: 14px;
  }

  .piano,
  .piano-keyboard,
  .keyboard,
  .virtual-piano,
  .practice-piano,
  [data-piano],
  [aria-label*="Piano"],
  [aria-label*="Keyboard"] {
    max-height: min(38vh, 230px);
  }

  .piano-key,
  .white-key,
  .keyboard-key,
  [data-piano-key] {
    min-height: min(32vh, 190px);
  }

  .black-key,
  .piano-key.black,
  .keyboard-key.black {
    min-height: min(20vh, 118px);
  }

  .km-mic-dock {
    bottom: max(18px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 850px) and (orientation: portrait) {
  body::before {
    content:none;
    position: fixed;
    left: 50%;
    bottom: max(84px, calc(env(safe-area-inset-bottom) + 74px));
    z-index: 1100;
    transform: translateX(-50%);
    width: min(88vw, 420px);
    padding: 9px 12px;
    border: 1px solid rgba(150, 211, 255, 0.18);
    border-radius: 12px;
    background: rgba(7, 19, 31, 0.9);
    color: rgba(244, 249, 255, 0.88);
    text-align: center;
    font-size: 12px;
    line-height: 1.3;
    pointer-events: none;
    backdrop-filter: blur(16px);
  }
}
/* KEYMENTOR_LANDSCAPE_PIANO_END v1.2.0 */

/* KEYMENTOR_BEGINNER_LESSON_STYLES_BEGIN v1.3.2 */
.km-lesson-shell{display:grid;gap:18px}
.km-lesson-header{display:flex;justify-content:space-between;gap:18px}
.km-lesson-status{padding:9px 13px;border-radius:999px;background:rgba(130,161,190,.14);font-weight:800}
.km-lesson-status.is-live{background:rgba(75,211,170,.16)}
.km-lesson-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.65fr);gap:18px}
.km-staff-wrap{overflow-x:auto}
.km-staff{width:100%;min-width:620px}
.km-staff-lines line,.km-barline,.km-note line,.km-note ellipse{stroke:currentColor;stroke-width:2}
.km-note ellipse{fill:currentColor}
.km-note text{fill:rgba(224,235,245,.72);font-size:12px;text-anchor:middle}
.km-note.is-current{color:#7ee8c5;filter:drop-shadow(0 0 8px rgba(126,232,197,.5))}
.km-note.is-done{color:rgba(126,232,197,.58)}
.km-clef{fill:currentColor;font-size:56px}
.km-time{fill:currentColor;font-size:22px;font-weight:800}
.km-lesson-feedback{margin-top:10px;padding:11px 13px;border-radius:12px;background:rgba(130,161,190,.1)}
.km-lesson-feedback.is-correct{background:rgba(75,211,170,.14)}
.km-lesson-feedback.is-wrong{background:rgba(255,130,130,.14)}
.km-theory-list{display:grid;gap:10px;margin:14px 0}
.km-theory-list>div{display:grid;gap:3px;padding:11px 12px;border-radius:12px;background:rgba(130,161,190,.08)}
.km-theory-list span{color:rgba(224,235,245,.72);font-size:13px}
.km-tempo-control{display:grid;gap:8px;margin:18px 0}
.km-lesson-actions{display:flex;gap:10px;flex-wrap:wrap}
.km-piano-roll{position:relative;height:176px;overflow:hidden;border-radius:14px;background:linear-gradient(to bottom,transparent 24%,rgba(255,255,255,.05) 25%,transparent 26%,transparent 49%,rgba(255,255,255,.05) 50%,transparent 51%,transparent 74%,rgba(255,255,255,.05) 75%,transparent 76%),rgba(7,19,31,.62)}
.km-roll-note{position:absolute;left:var(--l);top:calc(34px + var(--r)*22px);width:10.5%;height:24px;border-radius:7px;background:rgba(115,172,224,.46);display:grid;place-items:center;font-size:11px;font-weight:800}
.km-roll-note.is-current{background:rgba(126,232,197,.9);color:#07131f}
.km-roll-note.is-done{background:rgba(126,232,197,.38)}
.km-roll-playhead{position:absolute;left:var(--p);top:0;bottom:0;width:2px;background:rgba(255,255,255,.82)}
.km-beginner-keyboard-panel .keyboard{max-height:190px}
@media(max-width:900px){.km-lesson-grid{grid-template-columns:1fr}}
@media(max-width:1100px) and (orientation:landscape){
  .km-lesson-grid{grid-template-columns:minmax(0,1.45fr) minmax(240px,.55fr);gap:12px}
  .km-piano-roll{height:132px}
  .km-beginner-keyboard-panel .keyboard{max-height:150px}
}
/* KEYMENTOR_BEGINNER_LESSON_STYLES_END v1.3.2 */

/* KEYMENTOR_TRUE_PIANO_STYLES_BEGIN v2.0.0 */
.keyboard.km-true-piano{--km-piano-height:clamp(150px,24vw,240px);position:relative;width:100%;height:var(--km-piano-height);min-height:150px;overflow:hidden;border:1px solid rgba(137,177,207,.22);border-radius:16px;background:#07131f;box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 42px rgba(0,0,0,.28);touch-action:none;user-select:none}
.km-white-key-layer,.km-black-key-layer{position:absolute;inset:0}.km-white-key-layer{display:flex;z-index:1}.km-black-key-layer{z-index:3;pointer-events:none}
.keyboard.km-true-piano .piano-key{appearance:none;-webkit-appearance:none;margin:0;padding:0;font:inherit;cursor:pointer;touch-action:none;-webkit-tap-highlight-color:transparent}
.keyboard.km-true-piano .white-key{position:relative;flex:1 1 0;min-width:0;height:100%;border:0;border-right:1px solid #203344;border-bottom:6px solid #b7c0c7;border-radius:0 0 8px 8px;background:linear-gradient(to bottom,#fff 0%,#f7f9fb 70%,#e5eaee 92%,#d1d8de 100%);color:#0b2233;box-shadow:inset 0 -10px 18px rgba(78,94,107,.08),inset 1px 0 0 rgba(255,255,255,.9);z-index:1}
.keyboard.km-true-piano .white-key:first-child{border-radius:8px 0 8px 8px}.keyboard.km-true-piano .white-key:last-child{border-right:0;border-radius:0 8px 8px 8px}
.keyboard.km-true-piano .black-key{--km-black-width:calc(100% / var(--km-white-count) * .64);position:absolute;top:0;left:calc(((var(--km-black-anchor) + 1) / var(--km-white-count)) * 100% - (var(--km-black-width) / 2));width:var(--km-black-width);height:61%;min-width:15px;max-width:42px;border:1px solid #02070b;border-bottom:8px solid #03080d;border-radius:0 0 7px 7px;background:linear-gradient(to right,#050a0f 0%,#111c25 18%,#1b2a35 48%,#0c151d 78%,#02070b 100%);color:rgba(232,241,247,.62);box-shadow:0 9px 11px rgba(0,0,0,.5),inset 1px 0 0 rgba(255,255,255,.08),inset -1px 0 0 rgba(0,0,0,.7);pointer-events:auto;z-index:4}
.keyboard.km-true-piano .piano-key.active,.keyboard.km-true-piano .piano-key:active{background:linear-gradient(to bottom,#8ff2d3 0%,#5fd7b3 72%,#43b998 100%);color:#041a16;box-shadow:inset 0 0 0 2px rgba(255,255,255,.24),0 0 20px rgba(95,215,179,.42)}
.keyboard.km-true-piano .black-key.active,.keyboard.km-true-piano .black-key:active{border-color:#2e9e81;border-bottom-color:#1b6e59;background:linear-gradient(to right,#1f9274,#60d9b5 48%,#17775f)}
.km-key-label{position:absolute;left:50%;bottom:15px;transform:translateX(-50%);font-size:clamp(10px,1.15vw,15px);font-weight:800;line-height:1}.km-key-octave{position:absolute;left:50%;bottom:4px;transform:translateX(-50%);font-size:9px;font-weight:700;opacity:.48}.km-black-key-label{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);font-size:9px;font-weight:700;opacity:0}.keyboard.km-true-piano .black-key:focus-visible .km-black-key-label{opacity:.82}
@media(max-width:980px){.keyboard.km-true-piano{--km-piano-height:clamp(140px,29vw,210px)}.keyboard.km-true-piano .black-key{height:59%;max-width:38px}}
@media(max-width:620px){.keyboard.km-true-piano{--km-piano-height:clamp(130px,39vw,180px);border-radius:12px}.keyboard.km-true-piano .black-key{height:58%;min-width:13px;border-bottom-width:6px}.km-key-label{bottom:11px;font-size:10px}.km-key-octave{display:none}}
@media(max-width:1100px) and (orientation:landscape){.keyboard.km-true-piano{--km-piano-height:min(36vh,200px)}}
/* KEYMENTOR_TRUE_PIANO_STYLES_END v2.0.0 */

/* KEYMENTOR_TRUE_PIANO_HARDENING_BEGIN v2.0.1 */
.keyboard.km-true-piano,.keyboard.km-true-piano *{box-sizing:border-box}
.keyboard.km-true-piano{display:block!important;position:relative!important;padding:0!important;gap:0!important;grid-template-columns:none!important;align-items:initial!important;overflow:hidden!important;isolation:isolate}
.keyboard.km-true-piano .km-white-key-layer{position:absolute!important;inset:0!important;display:flex!important;flex-direction:row!important;gap:0!important;align-items:stretch!important;z-index:1!important}
.keyboard.km-true-piano .km-black-key-layer{position:absolute!important;inset:0!important;display:block!important;z-index:5!important;pointer-events:none!important}
.keyboard.km-true-piano button.piano-key.white-key{position:relative!important;inset:auto!important;flex:1 1 0!important;width:auto!important;min-width:0!important;max-width:none!important;height:100%!important;transform:none!important;margin:0!important;padding:0!important;float:none!important}
.keyboard.km-true-piano button.piano-key.black-key{--km-black-width:calc(100% / var(--km-white-count) * .62);position:absolute!important;top:0!important;bottom:auto!important;left:calc(((var(--km-black-anchor) + 1) / var(--km-white-count)) * 100% - (var(--km-black-width) / 2))!important;right:auto!important;width:var(--km-black-width)!important;min-width:13px!important;max-width:42px!important;height:61%!important;transform:none!important;margin:0!important;padding:0!important;float:none!important;pointer-events:auto!important;z-index:6!important}
.keyboard.km-true-piano button.piano-key{overflow:hidden;outline-offset:-3px}
.keyboard.km-true-piano button.piano-key:focus-visible{outline:3px solid rgba(95,215,179,.95)}
.keyboard.km-true-piano .white-key .km-key-label,.keyboard.km-true-piano .white-key .km-key-octave,.keyboard.km-true-piano .black-key .km-black-key-label{pointer-events:none}
@media(max-width:620px){.keyboard.km-true-piano button.piano-key.black-key{--km-black-width:calc(100% / var(--km-white-count) * .66);height:58%!important}}
@media(max-width:1100px) and (orientation:landscape){.keyboard.km-true-piano{min-height:126px!important;max-height:205px!important}}
/* KEYMENTOR_TRUE_PIANO_HARDENING_END v2.0.1 */

/* KEYMENTOR_MENTOR_AI_STYLES_BEGIN v0.1.0 */
.km-mentor-ai-shell {
  display: grid;
  gap: 18px;
}

.km-mentor-ai-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.km-mentor-ai-header h1 {
  margin-bottom: 8px;
}

.km-mentor-ai-version,
.km-ai-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 7px 12px;
  border: 1px solid rgba(126, 232, 197, 0.24);
  border-radius: 999px;
  background: rgba(126, 232, 197, 0.1);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.km-ai-status.is-approved {
  background: rgba(75, 211, 170, 0.16);
}

.km-mentor-ai-boundary {
  display: grid;
  gap: 5px;
  padding: 15px 17px;
  border: 1px solid rgba(115, 172, 224, 0.2);
  border-radius: 16px;
  background: rgba(115, 172, 224, 0.07);
}

.km-mentor-ai-boundary small,
.km-ai-boundary-note {
  color: rgba(224, 235, 245, 0.68);
}

.km-mentor-ai-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.km-mentor-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.km-mentor-form-grid label {
  display: grid;
  gap: 7px;
}

.km-mentor-form-grid input,
.km-mentor-form-grid select,
.km-mentor-interview-panel textarea {
  width: 100%;
  border: 1px solid rgba(137, 177, 207, 0.22);
  border-radius: 12px;
  background: rgba(7, 19, 31, 0.72);
  color: inherit;
  padding: 12px 13px;
}

.km-mentor-actions,
.km-mentor-capture-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.km-timing-examples {
  display: grid;
  gap: 10px;
}

.km-timing-examples > div {
  display: grid;
  gap: 3px;
  padding: 11px 12px;
  border-radius: 12px;
  background: rgba(130, 161, 190, 0.08);
}

.km-timing-examples span {
  color: rgba(224, 235, 245, 0.7);
  font-size: 13px;
}

.km-mentor-domain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.km-mentor-domain-card {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border: 1px solid rgba(137, 177, 207, 0.16);
  border-radius: 15px;
  background: rgba(7, 19, 31, 0.42);
}

.km-mentor-domain-card p {
  color: rgba(224, 235, 245, 0.7);
}

.km-ai-checklist,
.km-ai-workflow {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding-left: 20px;
}

.km-mentor-interview-panel[hidden] {
  display: none;
}

.km-mentor-interview-panel textarea {
  min-height: 160px;
  resize: vertical;
}

@media (max-width: 1000px) {
  .km-mentor-domain-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .km-mentor-ai-header,
  .km-mentor-ai-grid,
  .km-mentor-form-grid,
  .km-mentor-domain-grid {
    grid-template-columns: 1fr;
  }

  .km-mentor-ai-header {
    display: grid;
  }

  .km-mentor-domain-card {
    min-height: 0;
  }
}
/* KEYMENTOR_MENTOR_AI_STYLES_END v0.1.0 */

/* KEYMENTOR_MENTOR_AI_RUNTIME_STYLES_BEGIN v0.2.0 */
.km-mentor-interview-panel {
  scroll-margin-top: 92px;
}

.km-mentor-capture-actions button {
  min-width: 150px;
}

.km-ai-boundary-note {
  margin-top: 14px;
  padding: 11px 12px;
  border-radius: 12px;
  background: rgba(115, 172, 224, 0.07);
}

@media (max-width: 620px) {
  .km-mentor-capture-actions button {
    width: 100%;
  }
}
/* KEYMENTOR_MENTOR_AI_RUNTIME_STYLES_END v0.2.0 */

/* KEYMENTOR_MOBILE_PIANO_REPAIR_BEGIN v2.0.3 */
body::before,body::after,.app-shell::before,.app-shell::after,.main-content::before,.main-content::after,.mobile-nav::before,.mobile-nav::after,.keyboard-panel::before,.keyboard-panel::after,.km-landscape-hint,.km-landscape-prompt,.orientation-hint,.orientation-prompt,.landscape-hint,.landscape-prompt,[class*="landscape"][class*="hint"],[class*="landscape"][class*="prompt"],[class*="orientation"][class*="hint"],[class*="orientation"][class*="prompt"]{content:none!important;display:none!important;visibility:hidden!important;opacity:0!important;pointer-events:none!important}
.keyboard.km-true-piano{isolation:isolate!important;overflow:hidden!important}
.keyboard.km-true-piano .km-white-key-layer{position:absolute!important;inset:0!important;display:flex!important;z-index:1!important}
.keyboard.km-true-piano .km-black-key-layer{position:absolute!important;inset:0!important;z-index:5!important;pointer-events:none!important}
.keyboard.km-true-piano .black-key{position:absolute!important;top:0!important;left:var(--km-black-left)!important;width:var(--km-black-width)!important;min-width:10px!important;max-width:none!important;height:61%!important;transform:translateX(-50%)!important;pointer-events:auto!important;z-index:6!important}
#keymentorMicDock,.km-mic-dock{right:max(8px,env(safe-area-inset-right))!important;bottom:calc(72px + env(safe-area-inset-bottom))!important;max-width:min(148px,40vw)!important;z-index:44!important}
@media(max-width:760px){.keyboard.km-true-piano{--km-piano-height:clamp(138px,40vw,180px)!important}.keyboard.km-true-piano .black-key{height:59%!important}#keymentorMicDock,.km-mic-dock{transform:scale(.78)!important;transform-origin:right bottom!important;bottom:calc(68px + env(safe-area-inset-bottom))!important}#keymentorMicDock .km-mic-status,.km-mic-dock .km-mic-status{display:none!important}}
/* KEYMENTOR_MOBILE_PIANO_REPAIR_END v2.0.3 */

/* KEYMENTOR_MOBILE_AND_PIANO_FINAL_REPAIR_BEGIN v2.4.0 */
body::before,body::after,.app-shell::before,.app-shell::after,.main-content::before,.main-content::after,.mobile-nav::before,.mobile-nav::after,.keyboard-panel::before,.keyboard-panel::after,.km-landscape-hint,.km-landscape-prompt,.orientation-hint,.orientation-prompt,.landscape-hint,.landscape-prompt,[class*="landscape"][class*="hint"],[class*="landscape"][class*="prompt"],[class*="orientation"][class*="hint"],[class*="orientation"][class*="prompt"]{content:none!important;display:none!important;visibility:hidden!important;opacity:0!important;pointer-events:none!important}
.keyboard.km-true-piano{position:relative!important;isolation:isolate!important;overflow:hidden!important}
.keyboard.km-true-piano .km-white-key-layer{position:absolute!important;inset:0!important;display:flex!important;z-index:1!important}
.keyboard.km-true-piano .km-black-key-layer{position:absolute!important;inset:0!important;z-index:5!important;pointer-events:none!important}
.keyboard.km-true-piano .white-key{position:relative!important;flex:1 1 0!important;min-width:0!important;height:100%!important;z-index:1!important}
.keyboard.km-true-piano .black-key{position:absolute!important;top:0!important;left:var(--km-black-left)!important;width:var(--km-black-width)!important;min-width:10px!important;max-width:none!important;height:61%!important;transform:translateX(-50%)!important;pointer-events:auto!important;z-index:6!important}
#keymentorMicDock,.km-mic-dock{right:max(8px,env(safe-area-inset-right))!important;bottom:calc(72px + env(safe-area-inset-bottom))!important;max-width:min(148px,40vw)!important;z-index:44!important}
@media(max-width:760px){.keyboard.km-true-piano{--km-piano-height:clamp(138px,40vw,180px)!important}.keyboard.km-true-piano .black-key{height:59%!important}#keymentorMicDock,.km-mic-dock{transform:scale(.78)!important;transform-origin:right bottom!important;bottom:calc(68px + env(safe-area-inset-bottom))!important}#keymentorMicDock .km-mic-status,.km-mic-dock .km-mic-status{display:none!important}}
/* KEYMENTOR_MOBILE_AND_PIANO_FINAL_REPAIR_END v2.4.0 */

/* KEYMENTOR_ADMIN_AI_STYLES_BEGIN v0.4.0 */
.km-admin-ai-shell{display:grid;gap:18px}.km-admin-ai-header{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.km-admin-ai-version{padding:8px 11px;border-radius:999px;background:rgba(95,215,179,.12);font-weight:800}.km-admin-ai-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:18px}.km-admin-ai-list{display:grid;gap:10px;margin-top:14px}.km-admin-ai-list>div{display:grid;gap:4px;padding:12px;border-radius:12px;background:rgba(130,161,190,.08)}.km-admin-boundary-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.km-admin-boundary-tags span{padding:7px 10px;border-radius:999px;background:rgba(95,215,179,.12);font-size:12px;font-weight:750}@media(max-width:900px){.km-admin-ai-grid{grid-template-columns:1fr}}
/* KEYMENTOR_ADMIN_AI_STYLES_END v0.4.0 */


/* ==========================================================
   KEYMENTOR FULL FUNCTIONAL UI v1.6.1-R1
   Authoritative mobile navigation and piano layer
   ========================================================== */

.km-course-summary {
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    minmax(180px, 0.35fr);
  align-items: center;
  gap: 20px;
}

.km-course-progress-block {
  display: grid;
  gap: 9px;
  text-align: right;
}

.km-course-progress-block > strong {
  font-size: clamp(28px, 5vw, 44px);
}

.km-course-grid {
  display: grid;
  grid-template-columns:
    repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.km-course-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.km-course-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.km-course-number {
  font-weight: 850;
  opacity: 0.42;
}

.km-course-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.km-settings-status-panel {
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    auto;
  align-items: center;
  gap: 18px;
}

.km-settings-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.km-settings-save-status {
  grid-column: 1 / -1;
  min-height: 22px;
  margin: 0;
}

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 13px 0;
}

.toggle-row > span {
  display: grid;
  gap: 4px;
}

.toggle-row input {
  width: 22px;
  height: 22px;
}

/*
 * Existing app.js supplies exact percentage positions:
 *
 * --km-black-left
 * --km-black-width
 *
 * This final block overrides all old anchor-based rules.
 */
.keyboard.km-true-piano {
  box-sizing: border-box !important;
  display: block !important;
  position: relative !important;
  isolation: isolate !important;

  width: 100% !important;
  height: var(
    --km-piano-height,
    clamp(150px, 24vw, 240px)
  ) !important;

  min-height: 138px !important;
  padding: 0 !important;
  gap: 0 !important;

  overflow: hidden !important;

  border: 1px solid rgba(137, 177, 207, 0.24) !important;
  border-radius: 16px !important;
  background: #07131f !important;

  touch-action: none !important;
  user-select: none !important;
  -webkit-user-select: none !important;
}

.keyboard.km-true-piano .km-white-key-layer {
  box-sizing: border-box !important;
  display: flex !important;
  position: absolute !important;
  inset: 0 !important;

  flex-direction: row !important;
  align-items: stretch !important;
  gap: 0 !important;

  overflow: hidden !important;
  z-index: 1 !important;
}

.keyboard.km-true-piano .km-black-key-layer {
  box-sizing: border-box !important;
  display: block !important;
  position: absolute !important;
  inset: 0 !important;

  overflow: visible !important;
  pointer-events: none !important;
  z-index: 20 !important;
}

.keyboard.km-true-piano button.piano-key.white-key {
  box-sizing: border-box !important;
  display: block !important;
  position: relative !important;

  inset: auto !important;
  flex: 1 1 0 !important;

  width: auto !important;
  min-width: 0 !important;
  max-width: none !important;
  height: 100% !important;

  margin: 0 !important;
  padding: 0 !important;
  transform: none !important;

  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  z-index: 1 !important;
}

.keyboard.km-true-piano button.piano-key.black-key {
  box-sizing: border-box !important;
  display: block !important;
  position: absolute !important;

  top: 0 !important;
  right: auto !important;
  bottom: auto !important;
  left: var(--km-black-left) !important;

  width: var(--km-black-width) !important;
  min-width: 14px !important;
  max-width: none !important;
  height: 61% !important;

  margin: 0 !important;
  padding: 0 !important;

  transform: translateX(-50%) !important;

  border: 1px solid #000 !important;
  border-bottom: 7px solid #010406 !important;
  border-radius: 0 0 7px 7px !important;

  background:
    linear-gradient(
      90deg,
      #020507 0%,
      #111b23 20%,
      #263640 48%,
      #0b1218 78%,
      #010304 100%
    ) !important;

  box-shadow:
    0 9px 13px rgba(0, 0, 0, 0.72),
    inset 1px 0 rgba(255, 255, 255, 0.09),
    inset -1px 0 rgba(0, 0, 0, 0.82) !important;

  color: rgba(245, 250, 253, 0.78) !important;

  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  z-index: 24 !important;
}

.keyboard.km-true-piano button.piano-key.black-key::before,
.keyboard.km-true-piano button.piano-key.black-key::after {
  content: none !important;
}

.keyboard.km-true-piano .white-key.active,
.keyboard.km-true-piano .white-key.km-pointer-active,
.keyboard.km-true-piano .white-key[aria-pressed="true"] {
  background:
    linear-gradient(
      to bottom,
      #f4fffb,
      #c2f8e5 72%,
      #8fd9bf
    ) !important;
}

.keyboard.km-true-piano .black-key.active,
.keyboard.km-true-piano .black-key.km-pointer-active,
.keyboard.km-true-piano .black-key[aria-pressed="true"] {
  background:
    linear-gradient(
      90deg,
      #06372d,
      #159273 48%,
      #052c25
    ) !important;
}

.keyboard.km-true-piano .piano-key:focus-visible {
  outline: 3px solid rgba(95, 215, 179, 0.94) !important;
  outline-offset: -3px !important;
}

html[data-keymentor-keyboard-labels="minimal"]
  .keyboard.km-true-piano
  .km-key-label,
html[data-keymentor-keyboard-labels="minimal"]
  .keyboard.km-true-piano
  .km-key-octave {
  display: none !important;
}

html.km-reduced-motion *,
html.km-reduced-motion *::before,
html.km-reduced-motion *::after {
  scroll-behavior: auto !important;
  transition-duration: 0.01ms !important;
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
}

@media (max-width: 1000px) {
  .km-course-grid {
    grid-template-columns:
      repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .mobile-nav {
    display: flex !important;
    justify-content: flex-start !important;
    align-items: stretch !important;

    gap: 4px !important;

    overflow-x: auto !important;
    overflow-y: hidden !important;

    scroll-snap-type: x proximity;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
  }

  .mobile-nav .mobile-nav-button {
    flex: 0 0 68px !important;
    width: 68px !important;
    min-width: 68px !important;
    max-width: 68px !important;

    scroll-snap-align: start;
  }

  .keyboard-panel,
  .visual-keyboard-panel,
  .km-beginner-keyboard-panel {
    min-width: 0 !important;
  }

  html[data-keymentor-mobile-keyboard="scroll"]
    .keyboard-panel,
  html[data-keymentor-mobile-keyboard="scroll"]
    .visual-keyboard-panel,
  html[data-keymentor-mobile-keyboard="scroll"]
    .km-beginner-keyboard-panel {
    overflow-x: auto !important;
    overflow-y: visible !important;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
  }

  html[data-keymentor-mobile-keyboard="scroll"]
    .keyboard.km-true-piano {
    width: 620px !important;
    min-width: 620px !important;
    max-width: none !important;
  }

  html[data-keymentor-mobile-keyboard="fit"]
    .keyboard.km-true-piano {
    width: 100% !important;
    min-width: 0 !important;
  }

  .keyboard.km-true-piano {
    --km-piano-height:
      clamp(146px, 41vw, 184px) !important;

    min-height: 146px !important;
    border-radius: 12px !important;
  }

  .keyboard.km-true-piano button.piano-key.black-key {
    min-width: 15px !important;
    height: 60% !important;
    border-bottom-width: 6px !important;
  }

  #keymentorMicDock,
  .km-mic-dock {
    right:
      max(
        8px,
        env(safe-area-inset-right)
      ) !important;

    bottom:
      calc(
        78px
        + env(safe-area-inset-bottom)
      ) !important;

    max-width:
      min(
        142px,
        38vw
      ) !important;

    transform: scale(0.78) !important;
    transform-origin: right bottom !important;
    z-index: 44 !important;
  }
}

@media (max-width: 620px) {
  .km-course-summary,
  .km-settings-status-panel {
    grid-template-columns: 1fr;
  }

  .km-course-progress-block {
    text-align: left;
  }

  .km-course-grid {
    grid-template-columns: 1fr;
  }

  .km-settings-actions {
    justify-content: flex-start;
  }

  html[data-keymentor-mobile-keyboard="scroll"]
    .keyboard.km-true-piano {
    width: 560px !important;
    min-width: 560px !important;
  }

  .keyboard.km-true-piano button.piano-key.black-key {
    min-width: 16px !important;
  }
}
/* END KEYMENTOR FULL FUNCTIONAL UI v1.6.1-R1 */


/* ==========================================================
   BEGIN KEYMENTOR FULL WIDTH PLAYABLE PIANO v3.8.7
   Class-based responsive piano geometry
   No inline CSS geometry required
   ========================================================== */

.keyboard-panel,
.visual-keyboard-panel,
.km-beginner-keyboard-panel {
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
  overflow-x: visible !important;
  overflow-y: visible !important;
}

.keyboard.km-true-piano {
  position: relative !important;
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
  flex: 1 1 auto !important;
  contain: layout paint !important;
  isolation: isolate !important;
  overflow: hidden !important;
  touch-action: none !important;

  --km-piano-height: clamp(170px, 22vw, 250px);

  height: var(--km-piano-height) !important;
  min-height: 170px !important;
  max-height: 250px !important;
}

.keyboard.km-true-piano.km-white-count-15 {
  --km-white-count: 15;
}

.keyboard.km-true-piano.km-white-count-22 {
  --km-white-count: 22;
}

.keyboard.km-true-piano.km-white-count-36 {
  --km-white-count: 36;
}

.keyboard.km-true-piano .km-white-key-layer,
.keyboard.km-true-piano .km-black-key-layer {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
}

.keyboard.km-true-piano .km-white-key-layer {
  display: flex !important;
  flex-direction: row !important;
  align-items: stretch !important;
  gap: 0 !important;
  overflow: hidden !important;
  z-index: 1 !important;
}

.keyboard.km-true-piano .km-black-key-layer {
  display: block !important;
  overflow: visible !important;
  pointer-events: none !important;
  z-index: 20 !important;
}

.keyboard.km-true-piano button.piano-key.white-key {
  box-sizing: border-box !important;
  position: relative !important;
  display: block !important;

  flex: 1 1 0 !important;
  width: auto !important;
  min-width: 0 !important;
  max-width: none !important;

  height: 100% !important;

  margin: 0 !important;
  padding: 0 !important;
  transform: none !important;

  z-index: 1 !important;
}

.keyboard.km-true-piano button.piano-key.black-key {
  box-sizing: border-box !important;
  display: block !important;
  position: absolute !important;

  top: 0 !important;
  right: auto !important;
  bottom: auto !important;

  width:
    calc(
      100%
      /
      var(--km-white-count)
      * 0.62
    ) !important;

  min-width: 10px !important;
  max-width: none !important;

  height: 61% !important;

  margin: 0 !important;
  padding: 0 !important;

  transform: translateX(-50%) !important;

  opacity: 1 !important;
  visibility: visible !important;

  pointer-events: auto !important;
  z-index: 24 !important;

  background:
    linear-gradient(
      90deg,
      #010305 0%,
      #111c24 18%,
      #2b3c47 48%,
      #0a1117 78%,
      #010203 100%
    ) !important;

  border:
    1px solid
    rgba(0, 0, 0, 0.98) !important;

  border-bottom:
    7px solid
    #010305 !important;

  border-radius:
    0 0 7px 7px !important;

  box-shadow:
    0 9px 11px rgba(0, 0, 0, 0.62),
    inset 1px 0 rgba(255, 255, 255, 0.10),
    inset -1px 0 rgba(0, 0, 0, 0.86) !important;
}

.keyboard.km-true-piano .km-black-anchor-0 {
  left: calc((1 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-1 {
  left: calc((2 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-2 {
  left: calc((3 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-3 {
  left: calc((4 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-4 {
  left: calc((5 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-5 {
  left: calc((6 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-6 {
  left: calc((7 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-7 {
  left: calc((8 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-8 {
  left: calc((9 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-9 {
  left: calc((10 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-10 {
  left: calc((11 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-11 {
  left: calc((12 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-12 {
  left: calc((13 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-13 {
  left: calc((14 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-14 {
  left: calc((15 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-15 {
  left: calc((16 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-16 {
  left: calc((17 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-17 {
  left: calc((18 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-18 {
  left: calc((19 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-19 {
  left: calc((20 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-20 {
  left: calc((21 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-21 {
  left: calc((22 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-22 {
  left: calc((23 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-23 {
  left: calc((24 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-24 {
  left: calc((25 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-25 {
  left: calc((26 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-26 {
  left: calc((27 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-27 {
  left: calc((28 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-28 {
  left: calc((29 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-29 {
  left: calc((30 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-30 {
  left: calc((31 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-31 {
  left: calc((32 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-32 {
  left: calc((33 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-33 {
  left: calc((34 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-34 {
  left: calc((35 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-35 {
  left: calc((36 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-36 {
  left: calc((37 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-37 {
  left: calc((38 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-38 {
  left: calc((39 / var(--km-white-count)) * 100%) !important;
}
.keyboard.km-true-piano .km-black-anchor-39 {
  left: calc((40 / var(--km-white-count)) * 100%) !important;
}

.km-lesson-grid .km-beginner-keyboard-panel {
  grid-column: 1 / -1 !important;
}

@media (max-width: 1100px) {
  .km-beginner-keyboard-panel {
    width: 100% !important;
  }

  .keyboard.km-true-piano {
    --km-piano-height:
      clamp(158px, 24vw, 210px);

    min-height: 158px !important;
    max-height: 210px !important;
  }
}

@media
  (max-width: 1100px)
  and (orientation: landscape) {

  .km-lesson-grid {
    grid-template-columns:
      minmax(0, 1.45fr)
      minmax(220px, 0.55fr);

    gap: 12px;
  }

  .km-lesson-grid
  .km-beginner-keyboard-panel {
    grid-column: 1 / -1 !important;
    width: 100% !important;
    min-width: 0 !important;
  }

  .keyboard.km-true-piano {
    --km-piano-height:
      clamp(150px, 22vh, 195px);

    height: var(--km-piano-height) !important;
    min-height: 150px !important;
    max-height: 195px !important;
  }

  .keyboard.km-true-piano
  button.piano-key.black-key {
    height: 60% !important;
  }
}

@media (max-width: 620px) {
  .keyboard-panel,
  .visual-keyboard-panel,
  .km-beginner-keyboard-panel {
    width: 100% !important;
    overflow-x: visible !important;
    overflow-y: visible !important;
  }

  .keyboard.km-true-piano {
    --km-piano-height:
      clamp(142px, 39vw, 178px);

    height: var(--km-piano-height) !important;
    min-height: 142px !important;
    max-height: 178px !important;
  }

  .keyboard.km-true-piano
  button.piano-key.black-key {
    min-width: 9px !important;
    height: 59% !important;
  }
}

/* END KEYMENTOR FULL WIDTH PLAYABLE PIANO v3.8.7 */


/* BEGIN KEYMENTOR BLACK KEY SPECIFICITY AUTHORITY v3.8.8 */
.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-0 {
  left:
    calc(
      (1 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-1 {
  left:
    calc(
      (2 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-2 {
  left:
    calc(
      (3 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-3 {
  left:
    calc(
      (4 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-4 {
  left:
    calc(
      (5 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-5 {
  left:
    calc(
      (6 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-6 {
  left:
    calc(
      (7 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-7 {
  left:
    calc(
      (8 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-8 {
  left:
    calc(
      (9 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-9 {
  left:
    calc(
      (10 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-10 {
  left:
    calc(
      (11 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-11 {
  left:
    calc(
      (12 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-12 {
  left:
    calc(
      (13 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-13 {
  left:
    calc(
      (14 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-14 {
  left:
    calc(
      (15 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-15 {
  left:
    calc(
      (16 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-16 {
  left:
    calc(
      (17 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-17 {
  left:
    calc(
      (18 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-18 {
  left:
    calc(
      (19 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-19 {
  left:
    calc(
      (20 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-20 {
  left:
    calc(
      (21 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-21 {
  left:
    calc(
      (22 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-22 {
  left:
    calc(
      (23 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-23 {
  left:
    calc(
      (24 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-24 {
  left:
    calc(
      (25 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-25 {
  left:
    calc(
      (26 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-26 {
  left:
    calc(
      (27 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-27 {
  left:
    calc(
      (28 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-28 {
  left:
    calc(
      (29 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-29 {
  left:
    calc(
      (30 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-30 {
  left:
    calc(
      (31 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-31 {
  left:
    calc(
      (32 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-32 {
  left:
    calc(
      (33 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-33 {
  left:
    calc(
      (34 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-34 {
  left:
    calc(
      (35 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-35 {
  left:
    calc(
      (36 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-36 {
  left:
    calc(
      (37 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-37 {
  left:
    calc(
      (38 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-38 {
  left:
    calc(
      (39 / var(--km-white-count))
      * 100%
    ) !important;
}

.keyboard.km-true-piano
button.piano-key.black-key.km-black-anchor-39 {
  left:
    calc(
      (40 / var(--km-white-count))
      * 100%
    ) !important;
}
/* END KEYMENTOR BLACK KEY SPECIFICITY AUTHORITY v3.8.8 */

/* ==========================================================
   BEGIN KEYMENTOR LESSON COMPACT LAYOUT v3.8.9
   Layout and typography only.
   Piano key geometry remains untouched.
   ========================================================== */

/*
 * Lesson headings should support the playing workspace,
 * not dominate it.
 */
.km-lesson-header h1,
.km-lesson-header h2,
.km-lesson-shell .panel-heading h2,
.km-lesson-grid .panel-heading h2,
.km-lesson-grid article > h2 {
  font-size:
    clamp(
      22px,
      2.4vw,
      34px
    ) !important;

  line-height: 1.08 !important;
  letter-spacing: -0.025em !important;
  margin-top: 4px !important;
  margin-bottom: 10px !important;
}

.km-lesson-shell .eyebrow,
.km-lesson-grid .eyebrow {
  font-size: 11px !important;
  line-height: 1.2 !important;
  letter-spacing: 0.13em !important;
  margin-bottom: 6px !important;
}

.km-lesson-header {
  gap: 12px !important;
  margin-bottom: 4px !important;
}

.km-lesson-shell {
  gap: 14px !important;
}

.km-lesson-grid {
  gap: 14px !important;
}

/*
 * Tablet lesson workspace.
 *
 * The lesson content comes first.
 * Keyboard map / piano follows as a complete full-width row.
 */
@media (max-width: 1100px) {

  .km-lesson-grid {
    grid-template-columns:
      minmax(0, 1fr) !important;

    gap: 12px !important;
  }

  .km-lesson-grid > article,
  .km-lesson-grid > .panel,
  .km-lesson-grid > .visual-keyboard-panel,
  .km-lesson-grid > .km-beginner-keyboard-panel {
    grid-column: 1 / -1 !important;

    width: 100% !important;
    min-width: 0 !important;
    max-width: none !important;
  }

  .visual-keyboard-panel,
  .km-beginner-keyboard-panel {
    width: 100% !important;
  }

  .visual-keyboard-panel .keyboard.km-true-piano,
  .km-beginner-keyboard-panel .keyboard.km-true-piano {
    width: 100% !important;
    min-width: 0 !important;
    max-width: none !important;
  }

  .km-lesson-header h1,
  .km-lesson-header h2,
  .km-lesson-shell .panel-heading h2,
  .km-lesson-grid .panel-heading h2,
  .km-lesson-grid article > h2 {
    font-size:
      clamp(
        21px,
        3vw,
        30px
      ) !important;
  }
}

/*
 * Landscape tablet is the principal piano-learning layout.
 * Keep typography particularly compact here.
 */
@media
  (max-width: 1100px)
  and (orientation: landscape) {

  .main-content {
    padding-top: 10px !important;
  }

  .km-lesson-shell {
    gap: 10px !important;
  }

  .km-lesson-grid {
    grid-template-columns:
      minmax(0, 1fr) !important;

    gap: 10px !important;
  }

  .km-lesson-grid > article,
  .km-lesson-grid > .panel,
  .km-lesson-grid > .visual-keyboard-panel,
  .km-lesson-grid > .km-beginner-keyboard-panel {
    grid-column: 1 / -1 !important;
  }

  .km-lesson-header h1,
  .km-lesson-header h2,
  .km-lesson-shell .panel-heading h2,
  .km-lesson-grid .panel-heading h2,
  .km-lesson-grid article > h2 {
    font-size:
      clamp(
        20px,
        2.7vw,
        27px
      ) !important;

    margin-bottom: 7px !important;
  }

  .km-lesson-shell .eyebrow,
  .km-lesson-grid .eyebrow {
    font-size: 10px !important;
    margin-bottom: 4px !important;
  }

  .km-lesson-actions {
    margin-top: 10px !important;
  }

  /*
   * Important:
   * geometry inside the piano is NOT redefined here.
   */
  .visual-keyboard-panel .keyboard.km-true-piano,
  .km-beginner-keyboard-panel .keyboard.km-true-piano {
    width: 100% !important;
    max-width: none !important;
  }
}

/*
 * Phone: only typography tightening.
 * Do not introduce another piano geometry system.
 */
@media (max-width: 620px) {

  .km-lesson-header h1,
  .km-lesson-header h2,
  .km-lesson-shell .panel-heading h2,
  .km-lesson-grid .panel-heading h2,
  .km-lesson-grid article > h2 {
    font-size:
      clamp(
        19px,
        6vw,
        25px
      ) !important;
  }

  .km-lesson-grid {
    gap: 10px !important;
  }
}

/* END KEYMENTOR LESSON COMPACT LAYOUT v3.8.9 */

/* ==========================================================
   KEYMENTOR MENTOR HUB v3.11.1
   User-facing mentor marketplace / library
   ========================================================== */

.km-mentor-hub {
  display: grid;
  gap: 20px;
}

.km-mentor-hub-summary {
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    auto;
  gap: 24px;
  align-items: center;
}

.km-mentor-hub-summary p {
  max-width: 780px;
}

.km-mentor-hub-stats {
  display: flex;
  gap: 12px;
}

.km-mentor-hub-stats > div {
  display: grid;
  gap: 4px;
  min-width: 104px;
  padding: 14px 16px;
  border:
    1px solid
    rgba(126, 232, 197, 0.18);
  border-radius: 16px;
  background:
    rgba(126, 232, 197, 0.07);
  text-align: center;
}

.km-mentor-hub-stats strong {
  font-size: 26px;
}

.km-mentor-hub-stats span {
  color:
    rgba(224, 235, 245, 0.66);
  font-size: 12px;
  font-weight: 750;
}

.km-mentor-library-grid {
  display: grid;
  grid-template-columns:
    repeat(
      2,
      minmax(0, 1fr)
    );
  gap: 18px;
}

.km-mentor-library-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
  overflow: hidden;
}

.km-mentor-library-card::after {
  content: "";
  position: absolute;
  inset: auto -60px -80px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background:
    radial-gradient(
      circle,
      rgba(95, 215, 179, 0.12),
      transparent 70%
    );
  pointer-events: none;
}

.km-mentor-library-card.is-included {
  border-color:
    rgba(95, 215, 179, 0.34);
}

.km-mentor-library-card.is-premium {
  border-color:
    rgba(137, 177, 207, 0.18);
}

.km-mentor-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.km-mentor-avatar {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border:
    1px solid
    rgba(126, 232, 197, 0.26);
  border-radius: 18px;
  background:
    linear-gradient(
      145deg,
      rgba(95, 215, 179, 0.22),
      rgba(40, 108, 116, 0.18)
    );
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.km-mentor-access-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 850;
}

.km-mentor-access-badge.is-included {
  color: #7ee8c5;
  background:
    rgba(95, 215, 179, 0.13);
}

.km-mentor-access-badge.is-premium {
  color:
    rgba(224, 235, 245, 0.76);
  background:
    rgba(137, 177, 207, 0.1);
}

.km-mentor-card-copy {
  display: grid;
  gap: 8px;
}

.km-mentor-card-copy h2 {
  margin: 0;
}

.km-mentor-card-copy p {
  margin: 0;
}

.km-mentor-card-access {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
  padding-top: 14px;
  border-top:
    1px solid
    rgba(137, 177, 207, 0.12);
}

.km-mentor-card-access > span {
  color:
    rgba(224, 235, 245, 0.68);
  font-size: 13px;
}

.km-mentor-available {
  color: #7ee8c5;
  font-size: 13px;
}

.km-mentor-locked {
  color:
    rgba(224, 235, 245, 0.64);
  font-size: 13px;
}

.km-mentor-card-actions {
  display: flex;
}

.km-mentor-card-actions button {
  width: 100%;
}

.km-mentor-entitlement-note {
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    minmax(260px, 0.45fr);
  gap: 24px;
  align-items: center;
}

.km-mentor-entitlement-state {
  display: grid;
  gap: 5px;
  padding: 15px 17px;
  border:
    1px solid
    rgba(115, 172, 224, 0.2);
  border-radius: 16px;
  background:
    rgba(115, 172, 224, 0.07);
}

.km-mentor-entitlement-state span,
.km-mentor-entitlement-state small {
  color:
    rgba(224, 235, 245, 0.65);
}

@media (max-width: 900px) {
  .km-mentor-library-grid {
    grid-template-columns: 1fr;
  }

  .km-mentor-entitlement-note {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .km-mentor-hub {
    gap: 14px;
  }

  .km-mentor-hub-summary {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .km-mentor-hub-stats {
    width: 100%;
  }

  .km-mentor-hub-stats > div {
    flex: 1 1 0;
    min-width: 0;
  }

  .km-mentor-library-grid {
    gap: 14px;
  }

  .km-mentor-library-card {
    gap: 15px;
  }

  .km-mentor-avatar {
    width: 54px;
    height: 54px;
    border-radius: 16px;
  }
}

/* END KEYMENTOR MENTOR HUB v3.11.1 */