.header {
  padding: 28px 24px 0;
}

.header__bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 28px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(102, 117, 255, 0.18);
  box-shadow: var(--shadow-card);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.brand span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav a {
  font-size: 0.95rem;
  color: var(--color-muted);
  position: relative;
  padding: 10px 0 6px;
  transition: color 0.2s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width 0.2s ease;
}

.nav a:hover,
.nav a:focus,
.nav a.active {
  color: var(--color-primary);
}

.nav a:hover::after,
.nav a:focus::after,
.nav a.active::after {
  width: 100%;
}

.hero {
  padding: 96px 24px 72px;
}

.hero--subpage {
  padding: 96px 24px 48px;
}

.hero__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero__inner--center {
  justify-items: center;
  text-align: center;
}

.hero__intro {
  display: grid;
  gap: 18px;
  justify-items: center;
}

.eyebrow {
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.hero__title {
  font-size: clamp(2.75rem, 6vw, 3.8rem);
  margin-bottom: 16px;
  color: #0c1155;
}

.hero__subtitle {
  max-width: 620px;
  margin-bottom: 32px;
}

.hero__inner--center .hero__subtitle {
  max-width: 720px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.hero__stat {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(102, 117, 255, 0.16);
  box-shadow: 0 12px 24px rgba(74, 83, 151, 0.1);
  text-align: left;
}

.hero__stat strong {
  display: block;
  font-size: 1.45rem;
  color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  background: rgba(76, 92, 255, 0.12);
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn:hover,
.btn:focus {
  transform: translateY(-2px);
  box-shadow: 0 22px 32px rgba(62, 78, 180, 0.22);
}

.btn--ghost {
  background: transparent;
  border: 1px solid rgba(76, 92, 255, 0.25);
  color: var(--color-primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.section__header {
  max-width: 760px;
  margin: 0 auto 36px;
  text-align: center;
  display: grid;
  gap: 14px;
}

.section__header p {
  margin-bottom: 0;
}

.card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.25s ease, border 0.25s ease, box-shadow 0.25s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(85, 102, 255, 0.18), transparent 65%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.card:hover,
.card:focus-within {
  transform: translateY(-6px);
  border-color: rgba(79, 94, 255, 0.45);
  box-shadow: 0 28px 48px rgba(62, 78, 180, 0.18);
}

.card:hover::before,
.card:focus-within::before {
  opacity: 1;
}

.card__title {
  margin-bottom: 12px;
}

.card__badge {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(79, 94, 255, 0.12);
  color: var(--color-primary);
  font-size: 1.45rem;
  margin-bottom: 18px;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.card__actions {
  margin-top: 18px;
}

.card__actions .btn {
  font-size: 0.95rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(76, 92, 255, 0.12);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
}

.catalog {
  padding: 48px 24px 96px;
}

.catalog__layout {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 32px;
  grid-template-columns: 280px 1fr;
}

.catalog__sidebar {
  position: sticky;
  top: 32px;
  align-self: start;
  display: grid;
  gap: 22px;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(102, 117, 255, 0.16);
  box-shadow: var(--shadow-card);
}

.catalog__sidebar h2 {
  margin: 0;
  font-size: 1.1rem;
  color: #0c1155;
}

.catalog__nav {
  display: grid;
  gap: 10px;
}

.catalog__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 14px;
  color: var(--color-muted);
  background: rgba(233, 236, 255, 0.6);
  border: 1px solid transparent;
  transition: transform 0.2s ease, border 0.2s ease, background 0.2s ease;
}

.catalog__link span {
  font-size: 0.85rem;
  color: rgba(16, 22, 58, 0.45);
}

.catalog__link.active,
.catalog__link:hover,
.catalog__link:focus {
  color: var(--color-primary);
  background: rgba(76, 92, 255, 0.12);
  border-color: rgba(76, 92, 255, 0.35);
  transform: translateX(4px);
}

.catalog__content {
  display: grid;
  gap: 32px;
}

.catalog__header {
  display: grid;
  gap: 12px;
}

.catalog__header p {
  margin-bottom: 0;
}

.catalog__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.card--catalog {
  min-height: 250px;
}

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

.section--light {
  background: rgba(255, 255, 255, 0.7);
}

.topic-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.topic-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(76, 92, 255, 0.18);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 12px;
}

.topic-card strong {
  color: var(--color-primary);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.pill {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(14, 197, 163, 0.16);
  color: #058a70;
  font-weight: 600;
  font-size: 0.9rem;
}

.portrait-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}

.portrait-card {
  padding: 28px 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(76, 92, 255, 0.16);
  box-shadow: var(--shadow-card);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  transition: transform 0.25s ease, border 0.25s ease, box-shadow 0.25s ease;
}

.portrait-card:hover,
.portrait-card:focus-within {
  transform: translateY(-6px);
  border-color: rgba(108, 92, 231, 0.35);
  box-shadow: 0 22px 38px rgba(62, 78, 180, 0.22);
}

.portrait-card img {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  padding: 12px;
  background: #fff;
  box-shadow: 0 18px 40px rgba(62, 78, 180, 0.28);
}

.portrait-card h3 {
  margin-bottom: 6px;
  font-size: 1.12rem;
}

.portrait-card p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.footer {
  padding: 56px 24px;
  background: rgba(255, 255, 255, 0.88);
  border-top: 1px solid rgba(102, 117, 255, 0.16);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
}

.footer__meta {
  color: var(--color-muted);
  font-size: 0.9rem;
}

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

.table th,
.table td {
  padding: 14px;
  text-align: left;
  border-bottom: 1px solid rgba(76, 92, 255, 0.12);
}

.table th {
  font-weight: 600;
  color: var(--color-text);
}

.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: rgba(108, 92, 231, 0.12);
  border: 1px solid rgba(108, 92, 231, 0.35);
  color: var(--color-primary);
}

.ad-slot {
  min-height: 120px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.75);
  border: 1px dashed rgba(76, 92, 255, 0.28);
  display: grid;
  place-items: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.inline-links a {
  color: var(--color-primary);
}

.metronome {
  display: grid;
  gap: 24px;
}

.metronome-indicator {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(79, 94, 255, 0.18);
  margin: 0 auto;
  transition: background 0.12s ease, transform 0.12s ease;
}

.metronome-indicator--accent {
  background: var(--color-accent);
  transform: scale(1.2);
}

.metronome-indicator--tick {
  background: var(--color-primary);
  transform: scale(1.1);
}

.metronome-display {
  text-align: center;
}

.metronome-bpm {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
}

.metronome-bpm input {
  width: 90px;
  text-align: center;
  font-size: 1.4rem;
}

.metronome-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

.metronome-status {
  color: var(--color-muted);
}

.tuner-panel {
  display: grid;
  gap: 24px;
}

.tuner-display {
  display: grid;
  gap: 16px;
  justify-items: center;
}

.tuner-meter {
  position: relative;
  width: 220px;
  height: 120px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-md);
  border: 1px solid rgba(102, 117, 255, 0.18);
  overflow: hidden;
}

.tuner-meter__scale {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent, transparent 18px, rgba(76, 92, 255, 0.12) 18px, rgba(76, 92, 255, 0.12) 20px);
}

.tuner-meter__needle {
  position: absolute;
  left: 50%;
  bottom: 8px;
  width: 2px;
  height: 100px;
  background: var(--color-accent);
  transform-origin: bottom center;
  transition: transform 0.12s ease-out;
}

.tuner-info {
  text-align: center;
}

.tuner-note {
  font-size: 2.5rem;
}

.tuner-frequency {
  color: var(--color-muted);
}

.tuner-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tuner-status {
  color: var(--color-muted);
}

.chord-list {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.chord-card__diagrams {
  display: grid;
  gap: 16px;
}

.chord-diagram {
  display: grid;
  gap: 8px;
}

.chord-diagram__neck {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(76, 92, 255, 0.08);
}

.chord-diagram__neck .fret {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 6px;
  border-radius: 50%;
  background: rgba(76, 92, 255, 0.18);
  font-weight: 600;
}

.progression-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
}

.progression-list li {
  background: rgba(255, 255, 255, 0.85);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(76, 92, 255, 0.18);
}

.ear-panel {
  display: grid;
  gap: 16px;
}

.ear-mode,
.ear-score {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ear-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.ear-options {
  display: grid;
  gap: 12px;
}

.option-btn {
  justify-content: center;
}

.ear-feedback {
  color: var(--color-muted);
}

.j2s-panel {
  display: grid;
  gap: 16px;
}

.j2s-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#staff-canvas {
  width: 100%;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(76, 92, 255, 0.18);
}

.j2s-feedback {
  color: var(--color-muted);
}

@media (max-width: 1024px) {
  .catalog__layout {
    grid-template-columns: 1fr;
  }

  .catalog__sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero {
    padding-top: 48px;
  }

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

  .catalog__layout {
    gap: 24px;
  }

  .hero__stats {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .catalog__grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }

  .tuner-actions,
  .metronome-controls,
  .j2s-actions,
  .ear-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .catalog__grid {
    gap: 18px;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  }

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

  .hero__cta {
    width: 100%;
    justify-content: center;
  }
}

/* Genre grid cards */
.genre-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.genre-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 20px 18px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(76, 92, 255, 0.08), rgba(14, 197, 163, 0.08));
  border: 1px solid rgba(76, 92, 255, 0.18);
  box-shadow: var(--shadow-card);
  min-height: 200px;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border 0.2s ease;
}

.genre-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(76, 92, 255, 0.16), transparent 55%),
              radial-gradient(circle at 80% 80%, rgba(14, 197, 163, 0.14), transparent 60%);
  opacity: 0.6;
  pointer-events: none;
}

.genre-card:hover,
.genre-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(76, 92, 255, 0.35);
  box-shadow: 0 18px 34px rgba(62, 78, 180, 0.2);
}

.genre-card__icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(76, 92, 255, 0.24);
  font-size: 1.4rem;
  color: var(--color-primary);
  z-index: 1;
}

.genre-card__body {
  display: grid;
  gap: 10px;
  z-index: 1;
}

.genre-card__meta {
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.genre-card__title {
  margin: 0;
}

.genre-card__link {
  position: absolute;
  inset: 0;
  text-indent: -9999px;
}

.genre-card .tag-list {
  margin-top: 6px;
}

/* Genre detail layout */
.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.detail-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 20px 0 28px;
}

.detail-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(76, 92, 255, 0.2);
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-primary);
  font-weight: 600;
}

.detail-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.detail-card {
  position: relative;
  padding: 22px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(76, 92, 255, 0.14);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: 14px;
}

.detail-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.detail-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(76, 92, 255, 0.12);
  font-size: 1.2rem;
  color: var(--color-primary);
}

.detail-card__eyebrow {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.detail-card__columns {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.detail-card__columns h4 {
  margin: 0 0 8px;
}

.detail-card__columns ul {
  margin: 0;
  padding-left: 18px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(14, 197, 163, 0.16);
  color: #058a70;
  font-weight: 600;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .genre-card {
    grid-template-columns: 1fr;
  }
}