/**
 * styles.css
 * Estilos base LYRA — paleta clara educativa, mobile-first
 */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* Fondos y superficies */
  --color-bg:            #f8f9fc;
  --color-surface:       #ffffff;
  --color-border:        #e2e8f0;

  /* Roles armónicos */
  --color-tonic:         #8b5cf6;
  --color-tonic-text:    #ffffff;
  --color-dominant:      #22d3ee;
  --color-dominant-text: #0e4f5c;
  --color-subdominant:   #f59e0b;
  --color-subdominant-text: #78350f;
  --color-relative:      #ec4899;
  --color-relative-text: #ffffff;

  /* Notas inactivas */
  --color-note-idle:     #e5e7eb;
  --color-note-idle-text:#475569;

  /* Texto general */
  --color-text:          #1e293b;
  --color-text-muted:    #64748b;
  --color-text-light:    #94a3b8;

  --font-main:           'Space Grotesk', system-ui, sans-serif;
  --shadow-sm:           0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md:           0 4px 12px rgba(15, 23, 42, 0.08);
  --transition-fast:     0.2s ease;
  --transition-smooth:   0.3s ease;

  /* Layout fluido */
  --space-xs:  clamp(0.5rem, 2vw, 0.75rem);
  --space-sm:  clamp(0.75rem, 3vw, 1rem);
  --space-md:  clamp(1rem, 4vw, 1.5rem);
  --space-lg:  clamp(1.5rem, 5vw, 2.5rem);
  --content-max: 28rem;
  --content-wide: 64rem;
  --touch-min: 2.75rem; /* ~44px */
  --shadow-hover: 0 4px 14px rgba(15, 23, 42, 0.1);
  --motion-fast: 0.2s ease;
  --motion-medium: 0.3s ease;
}

/* ── Motion system (reutilizable en toda la app) ── */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.fade-in {
  animation: fadeInPage 0.2s ease forwards;
}

@keyframes fadeInPage {
  from { opacity: 0; }
  to { opacity: 1; }
}

.pulse {
  animation: pulseHit 0.3s ease;
}

@keyframes pulseHit {
  0% { transform: scale(1); }
  40% { transform: scale(1.14); }
  100% { transform: scale(1); }
}

.note-segment__circle.pulse,
.guitar-fretboard__dot.pulse,
.guitar-fretboard__scale-dot.pulse,
.piano-keyboard__key--interactive.pulse {
  transform-box: fill-box;
  transform-origin: center;
}

.content-crossfade {
  transition: opacity 0.15s ease;
}

.content-crossfade--out {
  opacity: 0;
}

.content-crossfade--in {
  opacity: 1;
}

.collapse-panel {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  overflow: hidden;
  transition:
    grid-template-rows 0.25s ease,
    opacity 0.25s ease,
    margin-top 0.25s ease;
}

.collapse-panel--open {
  grid-template-rows: 1fr;
  opacity: 1;
}

.collapse-panel__inner {
  min-height: 0;
  overflow: hidden;
}

.interactive,
.mood-chip,
.key-chip,
.cage-shape-chip,
.harmony-degree-chip,
.progression-builder__chord-chip,
.progression-builder__play-btn,
.progression-builder__secondary-btn,
.progression-display__play,
.progression-block__move,
.progression-block__remove,
.instrument-card,
.genre-card,
.home-level-card,
.home-hero__cta,
.lyrics-options-toggle,
.lyrics-option-card__use,
.compose-doc-section__action,
.piano-diagram__play-btn,
.song-section-card__play,
.componer-generate-btn,
.compose-studio__generate,
.compose-example,
.compose-export-bar__btn,
.song-summary__play-btn,
.song-summary__stop-btn,
.guitar-scale-toggle {
  transition: all var(--motion-fast);
}

@media (prefers-reduced-motion: no-preference) {
  .interactive:hover,
  .mood-chip:hover,
  .key-chip:hover,
  .cage-shape-chip:hover,
  .harmony-degree-chip:hover,
  .progression-builder__chord-chip:hover,
  .progression-builder__play-btn:hover:not(:disabled),
  .progression-builder__secondary-btn:hover:not(:disabled),
  .progression-display__play:hover:not(:disabled),
  .progression-block__move:hover:not(:disabled),
  .progression-block__remove:hover:not(:disabled),
  .instrument-card:hover,
  .genre-card:hover,
  .home-level-card:hover,
  .home-hero__cta:hover,
  .lyrics-options-toggle:hover,
  .lyrics-option-card__use:hover,
  .compose-doc-section__action:hover,
  .piano-diagram__play-btn:hover:not(:disabled),
  .song-section-card__play:hover,
  .componer-generate-btn:hover,
  .compose-studio__generate:hover,
  .compose-example:hover,
  .compose-export-bar__btn:hover,
  .song-summary__play-btn:hover:not(:disabled),
  .song-summary__stop-btn:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
  }

  .interactive:active,
  .mood-chip:active,
  .key-chip:active,
  .cage-shape-chip:active,
  .harmony-degree-chip:active,
  .progression-builder__chord-chip:active,
  .progression-builder__play-btn:active:not(:disabled),
  .progression-builder__secondary-btn:active:not(:disabled),
  .progression-display__play:active:not(:disabled),
  .progression-block__move:active:not(:disabled),
  .progression-block__remove:active:not(:disabled),
  .instrument-card:active,
  .genre-card:active,
  .home-level-card:active,
  .home-hero__cta:active,
  .lyrics-options-toggle:active,
  .lyrics-option-card__use:active,
  .compose-doc-section__action:active,
  .piano-diagram__play-btn:active:not(:disabled),
  .song-section-card__play:active,
  .componer-generate-btn:active,
  .compose-studio__generate:active,
  .compose-example:active,
  .compose-export-bar__btn:active,
  .song-summary__play-btn:active:not(:disabled),
  .song-summary__stop-btn:active {
    transform: scale(0.98);
  }
}

.play-btn--active {
  pointer-events: none;
}

.play-btn__waves {
  display: inline-flex;
  align-items: flex-end;
  justify-content: center;
  gap: 2px;
  height: 0.95rem;
  margin-right: 0.15rem;
  vertical-align: middle;
}

.play-btn__bar {
  display: block;
  width: 3px;
  height: 0.45rem;
  border-radius: 1px;
  background: currentColor;
  animation: playBarPulse 0.55s ease-in-out infinite alternate;
}

.play-btn__bar:nth-child(2) { animation-delay: 0.12s; height: 0.7rem; }
.play-btn__bar:nth-child(3) { animation-delay: 0.24s; height: 0.55rem; }
.play-btn__bar:nth-child(4) { animation-delay: 0.08s; height: 0.85rem; }

@keyframes playBarPulse {
  from { transform: scaleY(0.45); opacity: 0.65; }
  to { transform: scaleY(1); opacity: 1; }
}

.btn-feedback--success {
  border-color: #059669 !important;
  background: rgba(16, 185, 129, 0.12) !important;
  color: #047857 !important;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  color-scheme: light;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  background-color: var(--color-bg);
  background-color: #f8f9fc; /* fallback explícito paleta clara */
  color: var(--color-text);
  color: #1e293b;
  font-family: var(--font-main);
  line-height: 1.5;
  padding:
    env(safe-area-inset-top, 0)
    env(safe-area-inset-right, 0)
    env(safe-area-inset-bottom, 0)
    env(safe-area-inset-left, 0);
}

/* ── Layout demo ── */

/* ── Navegación global ── */

.app-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs) var(--space-sm);
  width: 100%;
  padding: var(--space-sm) max(var(--space-sm), env(safe-area-inset-left, 0.75rem));
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.app-nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.app-nav__logo-mark {
  width: 1.5em;
  height: 1.5em;
  flex-shrink: 0;
  display: block;
}

.app-nav__logo-text {
  font-size: clamp(1.35rem, 4.5vw, 1.65rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1;
  background: linear-gradient(135deg, #a855f7 0%, #22d3ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.app-nav__logo:hover .app-nav__logo-text {
  background: linear-gradient(135deg, #9333ea 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.app-nav__levels {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.65rem 0.5rem;
  border-radius: 0.5rem;
  font-size: clamp(0.8rem, 2.2vw, 0.875rem);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.app-nav__link::after {
  content: '';
  position: absolute;
  left: 0.65rem;
  right: 0.65rem;
  bottom: 0.18rem;
  height: 2px;
  border-radius: 1px;
  background: var(--color-tonic);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--motion-fast);
  opacity: 0.85;
}

.app-nav__link:hover:not(.app-nav__link--disabled) {
  background: var(--color-bg);
  color: var(--color-text);
}

.app-nav__link:hover:not(.app-nav__link--disabled):not(.app-nav__link--active)::after {
  transform: scaleX(0.55);
}

.app-nav__link--active {
  background: rgba(139, 92, 246, 0.12);
  color: var(--color-tonic);
  font-weight: 600;
}

.app-nav__link--active::after {
  transform: scaleX(1);
}

.app-nav__link--disabled {
  opacity: 0.55;
  cursor: not-allowed;
  user-select: none;
}

.app-nav__badge {
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: var(--color-bg);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.app-header {
  text-align: center;
  padding: var(--space-md) var(--space-sm) var(--space-xs);
}

.app-header__title {
  margin: 0;
  font-size: clamp(1.75rem, 7vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-tonic);
}

.app-header__subtitle {
  margin: 0.35rem 0 0;
  font-size: clamp(0.85rem, 2.5vw, 0.95rem);
  color: var(--color-text-muted);
}

.app-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 100%;
  padding: var(--space-sm) var(--space-sm) var(--space-lg);
  gap: var(--space-md);
}

#circle-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 100%;
}

/* ── Widget del círculo ── */

.circle-widget {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-sm);
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
}

/* Info de tonalidad seleccionada (arriba del círculo) */
.circle-key-info {
  width: 100%;
  min-height: 5rem;
  padding: var(--space-sm) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: opacity var(--transition-smooth);
}

.circle-key-info--empty {
  display: flex;
  align-items: center;
  justify-content: center;
}

.circle-key-info--empty .circle-key-info__hint {
  margin: 0;
  font-size: clamp(0.85rem, 2.5vw, 0.9rem);
  color: var(--color-text-light);
}

.circle-key-info__title {
  margin: 0 0 0.25rem;
  font-size: clamp(1rem, 3.5vw, 1.15rem);
  font-weight: 700;
  color: var(--color-text);
}

.circle-key-info__degrees {
  color: var(--color-tonic);
}

.circle-key-info__relative {
  margin: 0 0 0.35rem;
  font-size: clamp(0.85rem, 2.5vw, 0.9rem);
  color: var(--color-text-muted);
}

.circle-key-info__relative strong {
  color: var(--color-relative);
  font-weight: 700;
}

.circle-key-info__progression {
  margin: 0;
  font-size: clamp(0.85rem, 2.5vw, 0.9rem);
  color: var(--color-text-muted);
  word-break: break-word;
}

.circle-key-info__progression strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ── Círculo de quintas SVG (fluido) ── */

.circle-of-fifths-wrap {
  width: 100%;
  max-width: 100%;
  margin-inline: auto;
}

.circle-of-fifths {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  overflow: visible;
  aspect-ratio: 420 / 460;
  touch-action: manipulation;
}

.circle-of-fifths__ring {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1.5;
}

.circle-of-fifths__center {
  fill: var(--color-surface);
  stroke: var(--color-border);
  stroke-width: 1.5;
}

.circle-of-fifths__center-label {
  fill: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  pointer-events: none;
}

/* ── Segmentos de nota ── */

.note-segment {
  cursor: pointer;
  outline: none;
  touch-action: manipulation;
}

/* Área táctil invisible (≥44px en pantallas pequeñas) */
.note-segment__hit {
  fill: transparent;
  stroke: none;
  pointer-events: all;
}

.note-segment__circle {
  fill: var(--color-note-idle);
  stroke: transparent;
  stroke-width: 2;
  pointer-events: none;
  transition:
    fill var(--transition-smooth),
    stroke var(--transition-smooth),
    transform var(--motion-fast);
}

.note-segment__label {
  fill: var(--color-note-idle-text);
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 700;
  pointer-events: none;
  transition: fill var(--transition-smooth);
}

.note-segment__relative-minor {
  fill: var(--color-text-light);
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
  transition: fill var(--transition-smooth);
}

/* Sublabel activa cuando esta nota es el relativo menor de la selección */
.note-segment__relative-minor--active {
  fill: var(--color-relative);
  font-size: 12px;
  font-weight: 700;
}

.note-segment:hover .note-segment__circle {
  stroke: var(--color-text-light);
}

.note-segment:focus-visible .note-segment__circle {
  stroke: var(--color-tonic);
  stroke-width: 2.5;
}

/* Tónica seleccionada — púrpura */
.note-segment--tonic .note-segment__circle {
  fill: var(--color-tonic);
  stroke: var(--color-tonic);
}

.note-segment--tonic .note-segment__label {
  fill: var(--color-tonic-text);
}

/* Dominante (V) — cyan */
.note-segment--dominant .note-segment__circle {
  fill: var(--color-dominant);
  stroke: var(--color-dominant);
}

.note-segment--dominant .note-segment__label {
  fill: var(--color-dominant-text);
}

/* Subdominante (IV) — naranja */
.note-segment--subdominant .note-segment__circle {
  fill: var(--color-subdominant);
  stroke: var(--color-subdominant);
}

.note-segment--subdominant .note-segment__label {
  fill: var(--color-subdominant-text);
}

/* Relativo menor — rosa (posición = raíz del grado vi) */
.note-segment--relative .note-segment__circle {
  fill: var(--color-relative);
  stroke: var(--color-relative);
}

.note-segment--relative .note-segment__label {
  fill: var(--color-relative-text);
}

/* Notas no relacionadas (cuando hay selección) — gris */
.note-segment--dimmed .note-segment__circle {
  fill: var(--color-note-idle);
  opacity: 0.55;
}

.note-segment--dimmed .note-segment__label {
  fill: var(--color-text-light);
}

.note-segment--dimmed .note-segment__relative-minor {
  opacity: 0.7;
}

/* ── Líneas de relación curvas ── */

.relation-line {
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  opacity: 0;
  pointer-events: none;
  animation: relationLineReveal 0.35s ease forwards;
}

@keyframes relationLineReveal {
  from { opacity: 0; }
  to { opacity: 0.85; }
}

.relation-line--dominant {
  stroke: var(--color-dominant);
}

.relation-line--subdominant {
  stroke: var(--color-subdominant);
}

.relation-line--relative {
  stroke: var(--color-relative);
}

/* ── Leyenda de colores ── */

.circle-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xs) var(--space-sm);
  width: 100%;
  padding: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.625rem;
  box-shadow: var(--shadow-sm);
}

.circle-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: clamp(0.75rem, 2.2vw, 0.8rem);
  color: var(--color-text-muted);
}

.circle-legend__dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.circle-legend__dot--tonic       { background: var(--color-tonic); }
.circle-legend__dot--dominant    { background: var(--color-dominant); }
.circle-legend__dot--subdominant { background: var(--color-subdominant); }
.circle-legend__dot--relative    { background: var(--color-relative); }

/* ── Panel de progresión ── */

#progression-display {
  width: 100%;
  max-width: var(--content-max);
  padding: var(--space-md) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: opacity 0.15s ease;
}

.progression-display__hint {
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
}

.progression-display__label {
  margin: 0 0 0.5rem;
  font-size: clamp(0.95rem, 2.8vw, 1rem);
  color: var(--color-text);
}

.progression-display__label strong {
  color: var(--color-tonic);
}

.progression-display__line {
  margin: 0 0 0.5rem;
  font-size: clamp(0.9rem, 2.6vw, 0.95rem);
  color: var(--color-text);
  line-height: 1.5;
}

.progression-display__line:last-of-type {
  margin-bottom: var(--space-sm);
}

.progression-display__degrees {
  color: var(--color-tonic);
  font-weight: 600;
}

.progression-display__relative strong {
  color: var(--color-relative);
}

.progression-display__mood {
  margin: 0 0 0.35rem;
  font-size: clamp(0.85rem, 2.5vw, 0.9rem);
  color: var(--color-text-muted);
}

.progression-display__mood em {
  font-style: normal;
  font-weight: 600;
  color: var(--color-tonic);
}

.progression-display__headline {
  margin: 0 0 0.35rem;
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
  color: var(--color-text);
  line-height: 1.5;
  word-break: break-word;
}

.progression-display__headline em {
  font-style: normal;
  font-weight: 600;
  color: var(--color-text-muted);
}

.progression-display__roman {
  margin: 0 0 var(--space-sm);
  font-size: clamp(0.8rem, 2.2vw, 0.85rem);
  color: var(--color-text-light);
}

.progression-display__chords {
  display: inline;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.progression-display__play {
  display: flex;
  width: 100%;
  max-width: 100%;
  margin-top: 0.25rem;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: var(--touch-min);
  padding: 0.65rem 1.25rem;
  background: var(--color-tonic);
  border: none;
  border-radius: 0.5rem;
  color: #ffffff;
  font-family: var(--font-main);
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
  font-weight: 600;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
  touch-action: manipulation;
}

.progression-display__play:hover:not(:disabled) {
  background: #7c3aed;
}

.progression-display__play:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.progression-display__play:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 3px;
}

/* ── Footer demo ── */

.app-footer {
  text-align: center;
  padding: var(--space-sm);
  font-size: clamp(0.75rem, 2vw, 0.8rem);
  color: var(--color-text-muted);
}

.app-footer a {
  color: var(--color-tonic);
  text-decoration: none;
}

.app-footer a:hover {
  text-decoration: underline;
}

/* ── Responsive: móvil (<768px) ── */

@media (max-width: 767px) {
  .circle-legend {
    grid-template-columns: 1fr;
  }

  .circle-legend__item {
    white-space: normal;
  }

  .progression-display__play {
    width: 100%;
  }

  .app-main {
    padding-inline: max(var(--space-sm), env(safe-area-inset-left, 0.75rem));
  }

  .app-main--level {
    padding-inline: max(var(--space-sm), env(safe-area-inset-left, 0.75rem));
  }
}

/* ── Desktop ── */

@media (min-width: 768px) {
  .circle-legend {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.35rem 0.75rem;
  }

  .circle-legend__item {
    white-space: nowrap;
  }

  .app-main {
    padding-inline: var(--space-md);
  }
}

/* ── Página home ── */

.app-main--home {
  max-width: var(--content-wide);
  margin-inline: auto;
}

.home-hero {
  width: 100%;
  max-width: 36rem;
  text-align: center;
  padding: var(--space-md) 0;
}

.home-hero__title {
  margin: 0;
  font-size: clamp(2rem, 8vw, 3.25rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-tonic);
}

.home-hero__tagline {
  margin: var(--space-sm) 0 var(--space-md);
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.home-hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-min);
  padding: 0.75rem 1.5rem;
  background: var(--color-tonic);
  border-radius: 0.5rem;
  color: #fff;
  font-weight: 600;
  font-size: clamp(0.95rem, 2.5vw, 1rem);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.home-hero__cta:hover {
  background: #7c3aed;
}

.home-levels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  width: 100%;
}

@media (min-width: 640px) {
  .home-levels {
    grid-template-columns: repeat(3, 1fr);
  }
}

.home-level-card {
  padding: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.home-level-card--active {
  border-color: rgba(139, 92, 246, 0.35);
}

.home-level-card--soon {
  opacity: 0.7;
}

.home-level-card__badge {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--color-bg);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.home-level-card--active .home-level-card__badge {
  background: rgba(139, 92, 246, 0.12);
  color: var(--color-tonic);
}

.home-level-card__title {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  color: var(--color-text);
}

.home-level-card__desc {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.home-level-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-tonic);
  text-decoration: none;
}

.home-level-card__link:hover {
  text-decoration: underline;
}

/* ── Nivel Explorar ── */

.app-main--level {
  max-width: var(--content-wide);
  margin-inline: auto;
  gap: var(--space-xs);
  padding-top: var(--space-xs);
  padding-bottom: var(--space-sm);
}

.level-header {
  width: 100%;
  text-align: center;
}

.level-header__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.65rem;
  margin-bottom: 0.25rem;
}

.level-header__title {
  margin: 0;
  font-size: clamp(1.25rem, 4vw, 1.65rem);
  font-weight: 700;
  color: var(--color-text);
}

.level-header__badge {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.15);
  border: 1px solid rgba(34, 211, 238, 0.35);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-dominant-text);
}

.level-header__badge--intermediate {
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--color-subdominant-text);
}

.level-header__badge--advanced {
  background: rgba(139, 92, 246, 0.14);
  border-color: rgba(139, 92, 246, 0.35);
  color: var(--color-tonic);
}

.level-header__intro {
  margin: 0;
  max-width: 40rem;
  margin-inline: auto;
  font-size: clamp(0.8rem, 2.2vw, 0.875rem);
  color: var(--color-text-muted);
  line-height: 1.45;
}

.level-header__more {
  margin: 0.35rem auto 0;
  max-width: 40rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: left;
}

.level-header__more summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-tonic);
  list-style: none;
  text-align: center;
  transition: color var(--motion-fast);
}

.level-header__more > p {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  margin: 0;
  line-height: 1.45;
  text-align: center;
  transition:
    max-height 0.25s ease,
    opacity 0.25s ease,
    margin-top 0.25s ease;
}

.level-header__more[open] > p {
  max-height: 8rem;
  opacity: 1;
  margin-top: 0.35rem;
}

.level-header__more summary::-webkit-details-marker {
  display: none;
}

/* ── Selector de mood ── */

.mood-selector {
  width: 100%;
}

.mood-selector__title {
  margin: 0 0 0.35rem;
  font-size: clamp(0.8rem, 2.2vw, 0.875rem);
  font-weight: 600;
  text-align: center;
  color: var(--color-text-muted);
}

.mood-selector__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
}

.mood-chip {
  min-height: 2.125rem;
  padding: 0.3rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: clamp(0.78rem, 2.2vw, 0.825rem);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast);
  touch-action: manipulation;
}

.mood-chip:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.mood-chip--active {
  background: var(--color-tonic) !important;
  border-color: var(--color-tonic) !important;
  color: #ffffff !important;
  box-shadow: var(--shadow-md);
}

.mood-chip--happy {
  --mood-accent: #f59e0b;
  --mood-bg: #fef3c7;
}

.mood-chip--sad {
  --mood-accent: #64748b;
  --mood-bg: #e2e8f0;
}

.mood-chip--epic {
  --mood-accent: #ea580c;
  --mood-bg: #ffedd5;
}

.mood-chip--chill {
  --mood-accent: #0891b2;
  --mood-bg: #cffafe;
}

.mood-chip--mysterious {
  --mood-accent: #db2777;
  --mood-bg: #fce7f3;
}

.mood-chip--happy,
.mood-chip--sad,
.mood-chip--epic,
.mood-chip--chill,
.mood-chip--mysterious {
  background: var(--mood-bg);
  border-color: color-mix(in srgb, var(--mood-accent) 35%, transparent);
}

.mood-chip--active.mood-chip--happy,
.mood-chip--active.mood-chip--sad,
.mood-chip--active.mood-chip--epic,
.mood-chip--active.mood-chip--chill,
.mood-chip--active.mood-chip--mysterious {
  /* El estado activo usa púrpura tónica (regla .mood-chip--active) */
  border-color: var(--color-tonic);
}

/* ── Workspace Explorar ── */

.explorar-workspace {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
  width: 100%;
  gap: var(--space-sm);
}

.explorar-workspace__circle {
  width: 100%;
  min-width: 0;
}

.explorar-workspace__circle #circle-container {
  width: 100%;
}

.explorar-workspace__circle .circle-widget {
  max-width: none;
  gap: 0;
}

.explorar-info-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.explorar-info-card .progression-panel {
  align-self: stretch;
}

.explorar-info-card__legend:empty {
  display: none;
}

.explorar-info-card__legend .circle-legend {
  margin: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: 0.5rem 0.75rem;
}

.progression-panel {
  align-self: stretch;
}

/* Panel dentro de tarjeta Explorar */
.explorar-info-card #progression-display {
  max-width: none;
  margin: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  padding: 0.875rem 1rem 0.625rem;
  text-align: left;
}

.explorar-info-card .progression-display__line {
  margin: 0 0 0.35rem;
  font-size: clamp(0.82rem, 2.2vw, 0.9rem);
  line-height: 1.4;
}

.explorar-info-card .progression-display__line:last-of-type {
  margin-bottom: 0.5rem;
}

.explorar-info-card .progression-display__tonic {
  font-size: clamp(0.95rem, 2.5vw, 1.05rem);
  font-weight: 700;
}

.explorar-info-card .progression-display__play {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 0;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}

.explorar-info-card .progression-display__hint {
  font-size: 0.875rem;
  line-height: 1.45;
}

.app-main--level + .app-footer {
  padding: 0.35rem var(--space-sm);
  font-size: 0.7rem;
}

@media (min-width: 768px) {
  .app-main--level {
    gap: 0.5rem;
  }

  .explorar-workspace {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
    gap: var(--space-md);
    min-height: 0;
  }

  .explorar-workspace__circle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .explorar-workspace__circle .circle-of-fifths-wrap {
    width: 100%;
    max-width: min(100%, 420px);
    margin-inline: auto;
  }

  .explorar-workspace__circle .circle-of-fifths {
    width: 100%;
    height: auto;
    max-height: min(52vh, 440px);
    aspect-ratio: 420 / 460;
  }

  .explorar-info-card {
    align-self: center;
    max-height: min(52vh, 440px);
    overflow-y: auto;
  }

  .explorar-info-card__legend .circle-legend {
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 0.5rem;
    padding: 0.45rem 0.75rem;
  }

  .explorar-info-card__legend .circle-legend__item {
    font-size: 0.72rem;
  }
}

@media (max-width: 767px) {
  .explorar-workspace {
    gap: 0.625rem;
  }

  .mood-chip {
    min-height: var(--touch-min);
    padding: 0.4rem 0.85rem;
  }
}

/* ── Carga de audio (Tone.js Sampler) ── */

.audio-loading-banner {
  margin: 0 0 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  color: var(--color-text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.02em;
}

.circle-container--loading,
#circle-container.circle-container--loading {
  pointer-events: none;
  opacity: 0.72;
  filter: saturate(0.85);
  transition: opacity 0.25s ease, filter 0.25s ease;
}

.explorar-workspace--audio-loading .progression-display__play {
  pointer-events: none;
  opacity: 0.45;
}

/* ── Nivel Construir ── */

.construir-controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  width: 100%;
}

.construir-controls__section {
  width: 100%;
}

.construir-controls__title {
  margin: 0 0 0.4rem;
  font-size: clamp(0.8rem, 2.2vw, 0.875rem);
  font-weight: 600;
  text-align: center;
  color: var(--color-text-muted);
}

.key-selector {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
}

.key-chip {
  min-width: 2.25rem;
  min-height: 2.125rem;
  padding: 0.25rem 0.55rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.5rem;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: clamp(0.78rem, 2.2vw, 0.85rem);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast);
  touch-action: manipulation;
}

.key-chip:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.key-chip--active {
  background: var(--color-tonic);
  border-color: var(--color-tonic);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.instrument-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  max-width: 24rem;
  margin-inline: auto;
}

.instrument-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 6.5rem;
  padding: 0.75rem 0.5rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-family: var(--font-main);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
  touch-action: manipulation;
}

.instrument-card:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.instrument-card--active {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.08);
  color: var(--color-tonic);
  box-shadow: var(--shadow-md);
}

.instrument-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  display: block;
}

.instrument-card__label {
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
  font-weight: 700;
}

.construir-workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  width: 100%;
}

.construir-panel {
  width: 100%;
  min-height: 10rem;
  padding: var(--space-md) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.construir-panel__placeholder {
  margin: 0 0 0.5rem;
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
  color: var(--color-text-muted);
}

.construir-panel__meta {
  margin: 0;
  font-size: clamp(0.82rem, 2.2vw, 0.875rem);
  color: var(--color-text-light);
}

.construir-panel__meta strong {
  color: var(--color-tonic);
}

@media (min-width: 768px) {
  .construir-controls {
    grid-template-columns: 1.4fr 0.6fr;
    align-items: start;
    gap: var(--space-md);
  }

  .construir-controls__title {
    text-align: left;
  }

  .key-selector {
    justify-content: flex-start;
  }

  .instrument-selector {
    margin-inline: 0;
    max-width: none;
  }

  .construir-workspace {
    gap: var(--space-md);
  }

  .construir-panel {
    min-height: 12rem;
    padding: var(--space-md);
    text-align: left;
  }
}

@media (max-width: 767px) {
  .key-chip {
    min-height: var(--touch-min);
  }

  .instrument-card {
    min-height: 7.5rem;
  }
}

/* ── Diagrama de guitarra (CAGE) ── */

.construir-panel--guitar {
  padding: 0.75rem 0.5rem 1rem;
  text-align: left;
  overflow: hidden;
}

.guitar-diagram__header {
  margin-bottom: 0.65rem;
}

.guitar-diagram__title {
  margin: 0 0 0.5rem;
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
  color: var(--color-text);
  text-align: center;
}

.guitar-diagram__title strong {
  color: var(--color-tonic);
}

.guitar-diagram__subtitle {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.cage-shape-selector {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
}

.cage-shape-chip {
  min-height: 2rem;
  padding: 0.28rem 0.65rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.cage-shape-chip--active {
  border-color: var(--shape-color, var(--color-tonic));
  background: color-mix(in srgb, var(--shape-color, var(--color-tonic)) 12%, white);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.cage-shape-chip--all.cage-shape-chip--active {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.1);
}

.cage-shape-chip--off-neck {
  opacity: 0.45;
}

.cage-shape-chip:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.guitar-diagram__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem 1rem;
}

.guitar-scale-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  user-select: none;
}

.guitar-scale-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.guitar-scale-toggle__track {
  position: relative;
  width: 2.25rem;
  height: 1.25rem;
  border-radius: 999px;
  background: var(--color-border);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.guitar-scale-toggle__track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.guitar-scale-toggle__input:checked + .guitar-scale-toggle__track {
  background: color-mix(in srgb, var(--color-tonic) 55%, #64748b);
}

.guitar-scale-toggle__input:checked + .guitar-scale-toggle__track::after {
  transform: translateX(1rem);
}

.guitar-scale-toggle__input:focus-visible + .guitar-scale-toggle__track {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.guitar-scale-toggle__label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.guitar-scale-toggle__input:checked ~ .guitar-scale-toggle__label {
  color: var(--color-text);
}

.guitar-fretboard-wrap {
  position: relative;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
}

.guitar-fretboard {
  display: block;
  width: 100%;
  min-width: 640px;
  height: auto;
  max-height: 280px;
}

.guitar-fretboard__board {
  fill: #fef9ef;
  stroke: #e7dcc8;
  stroke-width: 1;
}

.guitar-fretboard__nut {
  fill: #e2e8f0;
}

.guitar-fretboard__fret-line {
  stroke: #94a3b8;
  stroke-width: 1.25;
}

.guitar-fretboard__string {
  stroke: #cbd5e1;
  stroke-linecap: round;
}

.guitar-fretboard__string--6 { stroke-width: 2.2; }
.guitar-fretboard__string--5 { stroke-width: 2; }
.guitar-fretboard__string--4 { stroke-width: 1.8; }
.guitar-fretboard__string--3 { stroke-width: 1.5; }
.guitar-fretboard__string--2 { stroke-width: 1.25; }
.guitar-fretboard__string--1 { stroke-width: 1.1; }

.guitar-fretboard__string-label,
.guitar-fretboard__fret-number {
  fill: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 600;
}

.guitar-fretboard__marker {
  fill: #cbd5e1;
  opacity: 0.85;
}

.guitar-fretboard__dot {
  transition: opacity 0.2s ease, transform var(--motion-fast);
}

.guitar-fretboard__dot:hover {
  opacity: 1 !important;
}

.guitar-fretboard__scale-layer {
  pointer-events: none;
}

.guitar-fretboard__scale-dot {
  pointer-events: all;
  transition: opacity 0.2s ease, transform var(--motion-fast);
}

.guitar-fretboard__scale-dot:hover {
  opacity: 0.85 !important;
}

.guitar-fretboard-tooltip {
  position: absolute;
  z-index: 5;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.88);
  color: #f8fafc;
  font-family: var(--font-main);
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: var(--shadow-sm);
}

.cage-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 0.85rem;
  margin-top: 0.75rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-border);
}

.cage-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.cage-legend__dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.cage-legend__dot--scale {
  background: rgba(100, 116, 139, 0.55);
  border: 1px solid rgba(100, 116, 139, 0.35);
}

@media (min-width: 768px) {
  .construir-panel--guitar {
    padding: 1rem 1rem 1.1rem;
  }

  .guitar-diagram__title {
    text-align: left;
  }

  .cage-shape-selector {
    justify-content: flex-start;
  }

  .guitar-diagram__controls {
    justify-content: flex-start;
  }

  .guitar-fretboard {
    min-width: 100%;
    max-height: 300px;
  }
}

/* ── Teclado de piano (Construir) ── */

.construir-panel--piano {
  padding: 0.75rem 0.5rem 1rem;
  text-align: left;
  overflow: hidden;
}

.piano-diagram__header {
  margin-bottom: 0.65rem;
}

.piano-diagram__title {
  margin: 0 0 0.5rem;
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
  color: var(--color-text);
  text-align: center;
}

.piano-diagram__title strong {
  color: var(--color-tonic);
}

.piano-diagram__subtitle {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.piano-diagram__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.harmony-degree-selector {
  flex: 1 1 auto;
  min-width: 0;
}

.piano-diagram__play-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface);
  font-size: 0.85rem;
  line-height: 1;
  color: var(--color-tonic);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    opacity var(--transition-fast);
}

.piano-diagram__play-btn:hover:not(:disabled) {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.08);
  box-shadow: var(--shadow-sm);
}

.piano-diagram__play-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.piano-diagram__play-btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.piano-keyboard-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
}

.piano-keyboard {
  display: block;
  width: 100%;
  min-width: 680px;
  height: auto;
  max-height: 260px;
}

.piano-keyboard__case {
  fill: #f1f5f9;
  stroke: #e2e8f0;
  stroke-width: 1;
}

.piano-keyboard__white {
  fill: url(#piano-white-key-grad);
  stroke: #d1d5db;
  stroke-width: 1;
  transition: filter 0.15s ease, transform var(--motion-fast);
}

.piano-keyboard__black {
  fill: url(#piano-black-key-grad);
  stroke: #020617;
  stroke-width: 0.75;
  transition: filter 0.15s ease, transform var(--motion-fast);
}

.piano-keyboard__key--interactive:hover {
  filter: brightness(0.96);
}

.piano-keyboard__black.piano-keyboard__key--interactive:hover {
  filter: brightness(1.15);
}

.piano-keyboard__white-label {
  fill: #94a3b8;
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 600;
  pointer-events: none;
}

.piano-keyboard__highlight {
  pointer-events: none;
}

.harmony-degree-legend {
  margin-top: 0.75rem;
}

@media (min-width: 768px) {
  .construir-panel--piano {
    padding: 1rem 1rem 1.1rem;
  }

  .piano-diagram__title {
    text-align: left;
  }

  .piano-diagram__controls {
    justify-content: flex-start;
  }

  .piano-keyboard {
    min-width: 100%;
    max-height: 280px;
  }
}

.piano-diagram__midi {
  margin-bottom: 0.65rem;
}

.piano-diagram__midi-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  background: #f8fafc;
  text-align: left;
}

.piano-diagram__midi-notice-icon {
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: #64748b;
  line-height: 0;
}

.piano-diagram__midi-notice-text {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--color-text-muted);
}

.piano-diagram__midi-connect {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 2.1rem;
  padding: 0.35rem 0.85rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.piano-diagram__midi-connect:hover:not(:disabled) {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.06);
  box-shadow: var(--shadow-sm);
}

.piano-diagram__midi-connect:disabled {
  cursor: default;
}

.piano-diagram__midi-connect--connected {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.08);
  color: #15803d;
  cursor: default;
}

.piano-diagram__midi-connect:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.piano-diagram__midi-status {
  margin: 0.4rem 0 0;
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

.piano-diagram__midi-status strong {
  color: var(--color-text);
  font-weight: 600;
}

.piano-diagram__midi-status--connected {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.piano-diagram__midi-status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.25);
  flex-shrink: 0;
}

.piano-diagram__midi-status--error {
  color: #b45309;
}

.piano-keyboard__midi-press {
  fill: rgba(139, 92, 246, 0.28);
  stroke: #8b5cf6;
  stroke-width: 2;
}

.piano-keyboard__midi-press--match {
  fill: rgba(34, 197, 94, 0.28);
  stroke: #22c55e;
  stroke-width: 2.25;
}

/* ── Editor de progresiones (Construir) ── */

.construir-panel--progression {
  text-align: left;
  padding: 0.85rem 0.65rem 1rem;
}

.progression-builder__header {
  margin-bottom: 0.75rem;
}

.progression-builder__title {
  margin: 0 0 0.25rem;
  font-size: clamp(0.95rem, 2.6vw, 1.05rem);
  font-weight: 700;
  color: var(--color-text);
}

.progression-builder__subtitle {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.progression-builder__subtitle strong {
  color: var(--color-tonic);
}

.progression-builder__picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.progression-builder__chord-chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 3.25rem;
  min-height: 2.75rem;
  padding: 0.35rem 0.65rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--shape-color, var(--color-tonic)) 10%, white);
  font-family: var(--font-main);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.progression-builder__chord-chip:hover {
  border-color: var(--shape-color, var(--color-tonic));
}

.progression-builder__chord-chip:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.progression-builder__chord-chip-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.1;
}

.progression-builder__chord-chip-degree {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--shape-color, var(--color-text-muted));
  line-height: 1.2;
}

.progression-builder__timeline-wrap {
  margin-bottom: 0.85rem;
  padding: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 0.65rem;
  background: #ffffff;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.progression-builder__timeline {
  display: flex;
  align-items: stretch;
  gap: 0.45rem;
  min-height: 5.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.15rem;
}

.progression-builder__timeline-empty {
  margin: auto;
  padding: 0.5rem 0.75rem;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-align: center;
}

.progression-block {
  position: relative;
  flex: 0 0 auto;
  display: grid;
  grid-template-rows: auto auto auto;
  grid-template-columns: 1fr 1fr;
  gap: 0.15rem 0.25rem;
  min-width: 4.75rem;
  padding: 0.55rem 0.45rem 0.4rem;
  border: 1.5px solid var(--block-color, var(--color-tonic));
  border-radius: 0.6rem;
  background: var(--block-bg, rgba(139, 92, 246, 0.12));
  cursor: grab;
  user-select: none;
  transition:
    box-shadow var(--transition-fast),
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

.progression-block:active {
  cursor: grabbing;
}

.progression-block--dragging {
  opacity: 0.55;
  transform: scale(0.97);
}

.progression-block__name {
  grid-column: 1 / -1;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  line-height: 1.1;
}

.progression-block__degree {
  grid-column: 1 / -1;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--block-color, var(--color-tonic));
  text-align: center;
}

.progression-block__move {
  min-width: 1.65rem;
  min-height: 1.65rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 0.35rem;
  background: rgba(255, 255, 255, 0.85);
  font-size: 0.75rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
}

.progression-block__move:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.progression-block__move--left {
  grid-column: 1;
}

.progression-block__move--right {
  grid-column: 2;
}

.progression-block__remove {
  position: absolute;
  top: 0.2rem;
  right: 0.2rem;
  width: 1.25rem;
  height: 1.25rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
}

.progression-block__remove:hover {
  color: #b45309;
  background: #fff7ed;
}

.progression-builder__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.65rem;
}

.progression-builder__play-btn {
  min-height: 2.35rem;
  padding: 0.45rem 0.9rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.progression-builder__play-btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.progression-builder__play-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.progression-builder__play-btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.progression-builder__tempo {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex: 1 1 10rem;
  min-width: 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.progression-builder__tempo-slider {
  flex: 1 1 auto;
  min-width: 5rem;
  accent-color: var(--color-tonic);
}

.progression-builder__tempo-value {
  flex-shrink: 0;
  min-width: 4.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.progression-builder__secondary-btn {
  min-height: 2.35rem;
  padding: 0.4rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.progression-builder__secondary-btn:hover:not(:disabled) {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.06);
}

.progression-builder__secondary-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.progression-builder__secondary-btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .construir-panel--progression {
    padding: 1rem 1rem 1.1rem;
  }

  .progression-builder__controls {
    gap: 0.65rem 0.85rem;
  }
}

/* ── Nivel Componer ── */

.app-main--componer {
  gap: var(--space-lg);
  max-width: 42rem;
  margin-inline: auto;
}

.componer-hero {
  text-align: center;
}

.componer-hero__intro {
  max-width: 36rem;
  margin-inline: auto;
  font-size: clamp(0.92rem, 2.2vw, 1rem);
  line-height: 1.55;
}

/* ── Compose studio (idea-first) ── */

.compose-mode-switch__btn--primary.compose-mode-switch__btn--active {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(34, 211, 238, 0.14));
}

.compose-panel--featured {
  padding: 1rem;
  border: 1px solid rgba(139, 92, 246, 0.18);
  border-radius: 0.85rem;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.04), transparent);
}

.compose-lyrics-pipeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.compose-lyrics-pipeline li::before {
  content: '→ ';
  color: var(--color-tonic);
  font-weight: 700;
}

.compose-studio__generate--primary {
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  color: #fff;
  font-weight: 700;
}

.compose-studio__generate--primary:hover {
  filter: brightness(1.05);
}

.compose-insights__badge--primary {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(34, 211, 238, 0.12));
  color: #6d28d9;
}

.compose-insights__stats--highlight {
  padding: 0.75rem;
  border-radius: 0.65rem;
  background: rgba(139, 92, 246, 0.05);
  border: 1px solid rgba(139, 92, 246, 0.12);
}

.compose-analysis-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem 0.75rem;
  margin: 0 0 0.5rem;
  padding: 0;
  list-style: none;
}

.compose-analysis-checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

.compose-analysis-checklist__item--done {
  color: var(--color-text);
}

.compose-analysis-checklist__mark {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--color-tonic);
}

.compose-section-detected-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0.65rem 0 0;
  padding: 0;
  list-style: none;
}

.compose-section-detected {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  align-items: baseline;
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--color-border);
}

.compose-section-detected__type {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-tonic);
}

.compose-section-detected__preview {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.compose-lyrics-export-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem 1.1rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, rgba(109, 40, 217, 0.08), rgba(34, 211, 238, 0.06));
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.compose-lyrics-export-hero__title {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.compose-lyrics-export-hero__meta {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.compose-lyrics-export-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.compose-lyrics-export-hero__btn {
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.compose-lyrics-export-hero__btn--primary {
  border-color: transparent;
  background: linear-gradient(135deg, #8b5cf6, #06b6d4);
  color: #fff;
}

.compose-export-bar--lyrics .compose-export-bar__btn--primary {
  border-color: rgba(139, 92, 246, 0.35);
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-tonic);
  font-weight: 700;
}

@media (max-width: 640px) {
  .compose-lyrics-pipeline,
  .compose-analysis-checklist {
    grid-template-columns: 1fr;
  }

  .compose-lyrics-export-hero {
    flex-direction: column;
    align-items: stretch;
  }
}

.compose-mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.35rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-surface);
}

.compose-mode-switch__btn {
  padding: 0.65rem 0.85rem;
  border: none;
  border-radius: 0.55rem;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.compose-mode-switch__btn--active {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(34, 211, 238, 0.1));
  color: var(--color-text);
  box-shadow: 0 1px 0 rgba(139, 92, 246, 0.12);
}

.compose-mode-switch__btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.compose-panel[hidden] {
  display: none !important;
}

.compose-studio__hint {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.compose-studio__input--lyrics {
  min-height: 16rem;
  font-size: 0.92rem;
  line-height: 1.6;
}

.compose-analysis__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.compose-analysis__tag {
  display: inline-block;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.18);
  font-size: 0.74rem;
  color: var(--color-text);
}

.compose-analysis__tag--hook {
  background: rgba(34, 211, 238, 0.08);
  border-color: rgba(34, 211, 238, 0.22);
}

.compose-analysis__empty,
.compose-analysis__note {
  margin: 0.25rem 0 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.compose-doc-section__lyrics {
  margin: 0;
  padding: 0.65rem 0 0;
  font-family: var(--font-main);
  font-size: 0.92rem;
  line-height: 1.65;
  white-space: pre-wrap;
  color: var(--color-text);
}

.compose-doc-section--lyrics .compose-doc-section__actions {
  display: none;
}

.compose-studio {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
}

.compose-studio__label {
  margin: 0;
  font-size: clamp(1.35rem, 4vw, 1.75rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.compose-studio__input {
  width: 100%;
  min-height: 9rem;
  padding: 1rem 1.1rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.85rem;
  background: var(--color-surface);
  font-family: var(--font-main);
  font-size: clamp(1rem, 2.5vw, 1.08rem);
  line-height: 1.55;
  color: var(--color-text);
  resize: vertical;
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.compose-studio__input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.75;
}

.compose-studio__input:focus {
  outline: none;
  border-color: rgba(139, 92, 246, 0.45);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.12);
}

.compose-studio__examples {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.compose-example {
  display: block;
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px dashed var(--color-border);
  border-radius: 0.65rem;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.82rem;
  line-height: 1.45;
  text-align: left;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    color var(--transition-fast);
}

.compose-example:hover {
  border-color: rgba(139, 92, 246, 0.35);
  background: rgba(139, 92, 246, 0.04);
  color: var(--color-text);
}

.compose-example:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.compose-advanced {
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-surface);
  overflow: hidden;
}

.compose-advanced__summary {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.compose-advanced__summary::-webkit-details-marker {
  display: none;
}

.compose-advanced__summary::after {
  content: '▾';
  float: right;
  font-size: 0.75rem;
  opacity: 0.6;
  transition: transform var(--transition-fast);
}

.compose-advanced[open] .compose-advanced__summary::after {
  transform: rotate(180deg);
}

.compose-advanced__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--color-border);
}

.compose-advanced__hint {
  margin: 0.75rem 0 1rem;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--color-text-muted);
}

.compose-advanced__group {
  margin-bottom: 1rem;
}

.compose-advanced__group:last-child {
  margin-bottom: 0;
}

.compose-advanced__title {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.compose-advanced .genre-selector {
  grid-template-columns: 1fr 1fr;
}

.compose-studio__generate {
  align-self: center;
  min-width: min(100%, 16rem);
  min-height: 3rem;
  padding: 0.7rem 1.75rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.compose-studio__generate:hover {
  transform: translateY(-1px);
}

.compose-studio__generate:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 3px;
}

.compose-result__header {
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--color-border);
}

.compose-result__idea {
  margin: 0 0 0.5rem;
  font-size: clamp(1rem, 2.5vw, 1.12rem);
  font-style: italic;
  line-height: 1.5;
  color: var(--color-text);
}

.compose-result__meta {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-text-muted);
}

.compose-export-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--color-border);
}

/* ── Fase 2: insights, biblioteca, estilos ── */

.compose-insights {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.compose-insights__label {
  display: block;
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.compose-insights__title-input {
  width: 100%;
  padding: 0.55rem 0;
  border: none;
  border-bottom: 1.5px solid var(--color-border);
  background: transparent;
  font-family: var(--font-main);
  font-size: clamp(1.35rem, 4vw, 1.65rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.compose-insights__title-input:focus {
  outline: none;
  border-bottom-color: var(--color-tonic);
}

.compose-title-alts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.55rem;
}

.compose-title-alt {
  padding: 0.3rem 0.6rem;
  border: 1px dashed var(--color-border);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.74rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast),
    background var(--transition-fast);
}

.compose-title-alt:hover {
  border-color: rgba(139, 92, 246, 0.4);
  color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.05);
}

.compose-insights__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.compose-insights__stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.compose-insights__stat-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.compose-insights__stat-value {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}

.compose-insights__hook-input {
  width: 100%;
  min-height: 3rem;
  padding: 0.45rem 0;
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: transparent;
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-text);
  resize: vertical;
}

.compose-insights__hook-input:focus {
  outline: none;
  border-bottom-color: var(--color-tonic);
}

.compose-insights--architect {
  gap: 1.1rem;
}

.compose-insights__badge {
  display: inline-block;
  margin: 0;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(34, 211, 238, 0.1));
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-tonic);
}

.compose-insights__field {
  display: flex;
  flex-direction: column;
}

.compose-insights__text {
  width: 100%;
  min-height: 2.5rem;
  padding: 0.45rem 0;
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text);
  resize: vertical;
}

.compose-insights__text:focus {
  outline: none;
  border-bottom-color: var(--color-tonic);
}

.compose-insights__structure-line {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--color-text);
}

.compose-doc-section__direction-label {
  display: block;
  margin: 0.65rem 0 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.architect-section__direction {
  font-style: normal;
}

.compose-print-sheet__direction-label {
  margin: 0.35rem 0 0.15rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #666;
}

.compose-inspiration {
  border: 1px solid var(--color-border);
  border-radius: 0.65rem;
  background: var(--color-surface);
  overflow: hidden;
}

.compose-inspiration__summary {
  padding: 0.65rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  list-style: none;
}

.compose-inspiration__summary::-webkit-details-marker {
  display: none;
}

.compose-inspiration__hint {
  margin: 0 0 0.65rem;
  padding: 0 0.85rem;
  font-size: 0.74rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.compose-inspiration__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0 0.85rem 0.85rem;
}

.compose-inspiration__tag {
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.18);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-tonic);
}

.compose-style-bar {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.compose-style-bar__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.compose-style-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.compose-style-btn {
  padding: 0.32rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  font-family: var(--font-main);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.compose-style-btn:hover {
  border-color: rgba(139, 92, 246, 0.35);
  background: rgba(139, 92, 246, 0.05);
}

.compose-library-panel {
  width: 100%;
  margin-top: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-surface);
  overflow: hidden;
}

.compose-library-panel__summary {
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
}

.compose-library-panel__summary::-webkit-details-marker {
  display: none;
}

.compose-library-panel__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--color-border);
}

.compose-library-panel__hint {
  margin: 0.75rem 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.compose-library {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.compose-library__empty {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.compose-library__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 0.6rem;
  background: #ffffff;
}

.compose-library__item--active {
  border-color: rgba(139, 92, 246, 0.45);
  background: rgba(139, 92, 246, 0.04);
}

.compose-library__title {
  margin: 0 0 0.15rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text);
}

.compose-library__meta {
  margin: 0;
  font-size: 0.74rem;
  color: var(--color-text-muted);
}

.compose-library__actions {
  display: flex;
  gap: 0.45rem;
}

.compose-library__btn {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
}

.compose-library__btn:hover {
  border-color: var(--color-tonic);
  color: var(--color-tonic);
}

.compose-library__btn--danger:hover {
  border-color: #ef4444;
  color: #ef4444;
}

.compose-print-sheet__hook {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: #333;
}

.compose-export-bar__btn {
  padding: 0;
  border: none;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition:
    color var(--transition-fast),
    text-decoration-color var(--transition-fast);
}

.compose-export-bar__btn:hover {
  color: var(--color-tonic);
  text-decoration-color: rgba(139, 92, 246, 0.45);
}

.compose-export-bar__btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
  border-radius: 2px;
}

.compose-print-sheet {
  display: none;
}

.compose-print-sheet__header {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #ccc;
}

.compose-print-sheet__title {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.compose-print-sheet__meta {
  margin: 0;
  font-size: 0.85rem;
  color: #555;
}

.compose-print-sheet__idea {
  margin: 0.5rem 0 0;
  font-style: italic;
  color: #333;
}

.compose-print-sheet__section {
  margin-bottom: 1.15rem;
  page-break-inside: avoid;
}

.compose-print-sheet__heading {
  margin: 0 0 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #666;
}

.compose-print-sheet__chords {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #6d28d9;
}

.compose-print-sheet__lyrics {
  margin: 0;
  font-family: var(--font-main);
  font-size: 0.95rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

@media print {
  .app-nav,
  .app-footer,
  .level-header,
  .compose-studio,
  .compose-export-bar,
  .compose-insights,
  .compose-library-panel,
  .compose-doc,
  .song-summary,
  .compose-doc-section__actions {
    display: none !important;
  }

  .compose-print-sheet {
    display: block !important;
    padding: 0;
  }

  .app-main--componer {
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .componer-structure {
    display: block !important;
  }

  .compose-result__header {
    display: none !important;
  }
}

.componer-structure__sections-title {
  margin: 1.25rem 0 0.75rem;
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .compose-advanced .genre-selector {
    grid-template-columns: repeat(2, 1fr);
  }
}

.componer-wizard {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
}

.componer-step {
  padding: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.componer-step__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.35rem;
  font-size: clamp(0.9rem, 2.4vw, 0.98rem);
  font-weight: 700;
  color: var(--color-text);
}

.componer-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.28);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-tonic);
  flex-shrink: 0;
}

.componer-step__hint {
  margin: 0 0 0.65rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.genre-selector {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.genre-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.65rem;
  background: var(--color-surface);
  font-family: var(--font-main);
  text-align: left;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
}

.genre-card:hover {
  border-color: rgba(139, 92, 246, 0.35);
}

.genre-card:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.genre-card--active {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.08);
  box-shadow: var(--shadow-sm);
}

.genre-card__label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text);
}

.genre-card__desc {
  font-size: 0.76rem;
  line-height: 1.4;
  color: var(--color-text-muted);
}

.mood-selector--compact .mood-selector__title {
  display: none;
}

.componer-wizard__actions {
  display: flex;
  justify-content: center;
  padding-top: 0.25rem;
}

.componer-generate-btn {
  min-height: 2.75rem;
  padding: 0.55rem 1.25rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.componer-generate-btn:hover {
  transform: translateY(-1px);
}

.componer-generate-btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 3px;
}

.componer-structure {
  display: none;
  width: 100%;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.componer-structure--visible {
  display: block;
}

.componer-structure__header {
  margin-bottom: 0.85rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--color-border);
}

.componer-structure__title {
  margin: 0 0 0.3rem;
  font-size: clamp(0.95rem, 2.5vw, 1.05rem);
  font-weight: 700;
  color: var(--color-text);
}

.componer-structure__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.componer-structure__meta strong {
  color: var(--color-tonic);
}

.componer-structure__list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.song-section-card {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 0.6rem;
  background: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  border-left-width: 4px;
  border-left-style: solid;
}

.song-section-card--intro,
.song-section-card--outro {
  border-left-color: #94a3b8;
  background: linear-gradient(90deg, rgba(148, 163, 184, 0.08), #ffffff 28%);
}

.song-section-card--verso {
  border-left-color: #0891b2;
  background: linear-gradient(90deg, rgba(8, 145, 178, 0.08), #ffffff 28%);
}

.song-section-card--coro {
  border-left-color: #8b5cf6;
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.1), #ffffff 28%);
}

.song-section-card--pre-coro {
  border-left-color: #ec4899;
  background: linear-gradient(90deg, rgba(236, 72, 153, 0.08), #ffffff 28%);
}

.song-section-card--puente {
  border-left-color: #f59e0b;
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.1), #ffffff 28%);
}

.song-section-card--instrumental {
  border-left-color: #34d399;
  background: linear-gradient(90deg, rgba(52, 211, 153, 0.1), #ffffff 28%);
}

.song-section-card__title {
  margin: 0 0 0.45rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text);
}

.song-section-card__progression {
  margin-bottom: 0.45rem;
}

.song-section-card__progression-row {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
}

.song-section-card__chords {
  flex: 1 1 auto;
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.45;
  color: var(--color-text);
}

.song-section-card__chords-label {
  font-weight: 600;
  color: var(--color-text-muted);
}

.song-section-card__degrees {
  margin: 0.25rem 0 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}

.song-section-card__play {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  padding: 0;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface);
  font-size: 0.72rem;
  line-height: 1;
  color: var(--color-tonic);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.song-section-card__play:hover {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.08);
}

.song-section-card__play:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.song-section-card__instrumental {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: #059669;
}

.song-section-card__placeholder {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ── Editor documento (Componer) ── */

.compose-doc {
  width: 100%;
  padding: 1.35rem 1.25rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0.85rem;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.compose-doc-section {
  padding: 1.15rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.compose-doc-section:last-child {
  border-bottom: none;
  padding-bottom: 0.35rem;
}

.compose-doc-section__heading {
  margin: 0 0 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.compose-doc-section__chords {
  margin: 0 0 0.2rem;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--color-tonic);
  font-weight: 600;
}

.compose-doc-section__degrees {
  margin: 0 0 0.65rem;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  opacity: 0.85;
}

.compose-doc-section__editor {
  display: block;
  width: 100%;
  min-height: 4.5rem;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-main);
  font-size: clamp(1rem, 2.5vw, 1.08rem);
  line-height: 1.75;
  color: var(--color-text);
  resize: none;
  overflow: hidden;
}

.compose-doc-section__editor::placeholder {
  color: var(--color-text-muted);
  opacity: 0.55;
}

.compose-doc-section__editor:focus {
  outline: none;
}

.compose-doc-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: 0.55rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.compose-doc-section:focus-within .compose-doc-section__actions,
.compose-doc-section:hover .compose-doc-section__actions {
  opacity: 1;
}

.compose-doc-section__action {
  padding: 0;
  border: none;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition:
    color var(--transition-fast),
    text-decoration-color var(--transition-fast);
}

.compose-doc-section__action:hover {
  color: var(--color-tonic);
  text-decoration-color: rgba(139, 92, 246, 0.45);
}

.compose-doc-section__action:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
  border-radius: 2px;
}

.compose-doc-section__placeholder {
  margin: 0.25rem 0 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.compose-doc-section.song-section-card--intro .compose-doc-section__heading,
.compose-doc-section.song-section-card--outro .compose-doc-section__heading,
.compose-doc-section.song-section-card--verso .compose-doc-section__heading,
.compose-doc-section.song-section-card--coro .compose-doc-section__heading,
.compose-doc-section.song-section-card--pre-coro .compose-doc-section__heading,
.compose-doc-section.song-section-card--puente .compose-doc-section__heading,
.compose-doc-section.song-section-card--instrumental .compose-doc-section__heading {
  color: var(--section-accent, var(--color-text-muted));
}

.compose-doc-section.song-section-card--intro,
.compose-doc-section.song-section-card--outro {
  --section-accent: #94a3b8;
}

.compose-doc-section.song-section-card--verso {
  --section-accent: #0891b2;
}

.compose-doc-section.song-section-card--coro {
  --section-accent: #8b5cf6;
}

.compose-doc-section.song-section-card--pre-coro {
  --section-accent: #ec4899;
}

.compose-doc-section.song-section-card--puente {
  --section-accent: #f59e0b;
}

.compose-doc-section.song-section-card--instrumental {
  --section-accent: #34d399;
}

@media (min-width: 640px) {
  .compose-doc {
    padding: 1.65rem 1.75rem 0.75rem;
  }

  .compose-doc-section__actions {
    opacity: 1;
  }
}

/* ── Vista resumen de canción (Componer) ── */

.song-summary {
  margin-top: 1.25rem;
  margin-bottom: 0;
  border: 1px solid rgba(139, 92, 246, 0.28);
  border-radius: 0.75rem;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.06) 0%, #ffffff 100%);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.song-summary__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: none;
  border-bottom: 1px solid transparent;
  background: transparent;
  font-family: var(--font-main);
  text-align: left;
  cursor: pointer;
  transition: background var(--motion-fast);
}

.song-summary--open .song-summary__toggle {
  border-bottom-color: var(--color-border);
}

.song-summary__toggle:hover {
  background: rgba(139, 92, 246, 0.06);
}

.song-summary__toggle-title {
  margin: 0;
  font-size: clamp(0.95rem, 2.5vw, 1.05rem);
  font-weight: 700;
  color: var(--color-text);
}

.song-summary__toggle-icon {
  flex-shrink: 0;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  transition: transform var(--motion-fast);
}

.song-summary--open .song-summary__toggle-icon {
  transform: rotate(180deg);
}

.song-summary__body {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  overflow: hidden;
  transition:
    grid-template-rows 0.25s ease,
    opacity 0.25s ease;
}

.song-summary--open .song-summary__body {
  grid-template-rows: 1fr;
  opacity: 1;
}

.song-summary__body-inner {
  min-height: 0;
  overflow: hidden;
}

.song-summary__content {
  padding: 0.85rem;
}

.song-summary__headline {
  margin: 0 0 0.65rem;
  font-size: clamp(0.88rem, 2.4vw, 0.95rem);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.45;
}

.song-summary__headline strong {
  color: var(--color-tonic);
}

.song-summary__tempo {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.85rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 0.55rem;
  background: #ffffff;
}

.song-summary__tempo-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.song-summary__tempo-slider {
  flex: 1 1 8rem;
  min-width: 6rem;
  accent-color: var(--color-tonic);
}

.song-summary__tempo-value {
  min-width: 4.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-tonic);
  text-align: right;
}

.song-summary__tempo-hint {
  width: 100%;
  margin: 0;
  font-size: 0.72rem;
  color: var(--color-text-light);
}

.song-summary__document {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
  padding: 0.75rem;
  border: 1px dashed rgba(148, 163, 184, 0.45);
  border-radius: 0.55rem;
  background: #fafbff;
}

.song-summary__section {
  padding: 0.55rem 0.6rem;
  border-radius: 0.45rem;
  background: #ffffff;
  border: 1px solid rgba(148, 163, 184, 0.25);
  transition:
    border-color var(--motion-fast),
    box-shadow var(--motion-fast),
    background var(--motion-fast);
}

.song-summary__section--playing,
.song-section-card--playing {
  border-color: var(--color-tonic);
  background: rgba(139, 92, 246, 0.08);
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.18);
}

.song-summary__section-title {
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.song-summary__section-chords {
  margin: 0 0 0.35rem;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
}

.song-summary__section-lyrics {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  white-space: pre-wrap;
}

.song-summary__section-lyrics--empty {
  font-style: italic;
  color: var(--color-text-light);
}

.song-summary__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.song-summary__play-btn {
  flex: 1 1 auto;
  min-height: var(--touch-min);
  padding: 0.55rem 1rem;
  border: none;
  border-radius: 0.5rem;
  background: var(--color-tonic);
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.song-summary__play-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.song-summary__play-btn:focus-visible {
  outline: 2px solid var(--color-tonic);
  outline-offset: 2px;
}

.song-summary__stop-btn {
  min-height: var(--touch-min);
  padding: 0.55rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.5rem;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.song-summary__stop-btn[hidden] {
  display: none;
}

.song-summary__export-btn {
  min-height: var(--touch-min);
  padding: 0.55rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: 0.5rem;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.componer-structure__sections-title {
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .componer-wizard {
    gap: var(--space-md);
  }

  .componer-step {
    padding: var(--space-md);
  }

  .genre-selector {
    grid-template-columns: repeat(2, 1fr);
  }

  .componer-wizard__actions {
    justify-content: flex-start;
  }

  .componer-structure {
    padding: var(--space-md);
  }
}