:root {
  --bg: #0a0808;
  --panel: #120e0e;
  --panel-2: #1a1414;
  --wine: #5a121f;
  --crimson: #93172c;
  --crimson-bright: #c02241;
  --bone: #ede7e1;
  --bone-dim: #b2a9a2;
  --muted: #8a8078;
  --line: #282020;

  /* Las teclas blancas del piano son un color fijo (imitan marfil real):
     no cambian con el tema claro/oscuro como sí lo hace el texto. */
  --claro-fijo: #ede7e1;
  --claro-fijo-hover: #b2a9a2;

  --font-display: "Cormorant Garamond", serif;
  --font-body: "Work Sans", sans-serif;
}

/* --- Modo claro ------------------------------------------------------- */
/* Alternado con el botón de la barra de navegación (tema.js); por defecto
   el sitio es oscuro. El acento (crimson) y las teclas del piano se dejan
   igual en ambos temas a propósito. */
:root[data-tema="claro"] {
  --bg: #f7f2ec;
  --panel: #ffffff;
  --panel-2: #f2e9e1;
  --bone: #241c1a;
  --bone-dim: #5b4a42;
  --muted: #6b5c50;
  --line: #e3d5ca;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  color-scheme: dark;
}

html[data-tema="claro"] {
  color-scheme: light;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--bone);
  font-family: var(--font-body);
  line-height: 1.5;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.cabecera {
  position: relative;
  padding-right: 3rem;
}

.cabecera h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2.1rem;
  margin: 0 0 0.4rem;
  color: var(--bone);
}

.subtitulo {
  color: var(--bone-dim);
  margin: 0 0 1.75rem;
  font-size: 0.98rem;
}

.piano-contenedor {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  padding: 0.75rem;
  margin-bottom: 1.25rem;
}

.piano {
  position: relative;
  height: 128px;
}

.tecla {
  position: absolute;
  top: 0;
  cursor: pointer;
  box-sizing: border-box;
  transition: background 0.08s ease;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 4px;
  user-select: none;
}

.tecla.blanca {
  height: 100%;
  background: var(--claro-fijo);
  border: 1px solid var(--line);
  border-radius: 0 0 4px 4px;
  z-index: 1;
}

.tecla.negra {
  height: 62%;
  background: #150f0f;
  border: 1px solid #000;
  border-radius: 0 0 3px 3px;
  z-index: 2;
}

.tecla.blanca:hover {
  background: var(--claro-fijo-hover);
}

.tecla.negra:hover {
  background: #2a2020;
}

.tecla.seleccionada {
  outline: 2px solid var(--crimson-bright);
  outline-offset: -2px;
}

.tecla.activa {
  background: var(--crimson-bright) !important;
}

.tecla.activa .tecla-etiqueta {
  color: var(--claro-fijo);
}

.tecla-etiqueta {
  font-family: var(--font-body);
  font-size: var(--tecla-fuente, 11px);
  font-weight: 700;
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
}

.tecla.blanca .tecla-etiqueta {
  color: #2a2320;
}

.tecla.negra .tecla-etiqueta {
  color: var(--claro-fijo);
  font-size: calc(var(--tecla-fuente, 11px) * 0.82);
}

/* Con teclas negras muy estrechas (zoom bajo) el texto no cabe en horizontal:
   se rota para que siga siendo legible sin desbordar. */
.piano.estrecho .tecla.negra .tecla-etiqueta {
  transform: rotate(-90deg);
}

.piano-slider {
  width: 100%;
  margin: -0.75rem 0 0.5rem;
  accent-color: var(--crimson-bright);
}

.piano-zoom {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.piano-zoom input[type="range"] {
  flex: 1;
  accent-color: var(--crimson-bright);
}

.afinometro {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  margin: 0 0 1.25rem;
}

.afinometro-arco {
  position: relative;
  width: 160px;
  height: 82px;
  overflow: hidden;
}

.afinometro-arco::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 2px solid var(--line);
  box-sizing: border-box;
}

.afinometro-aguja {
  position: absolute;
  bottom: 0;
  left: calc(50% - 1.5px);
  width: 3px;
  height: 74px;
  background: var(--crimson-bright);
  transform-origin: bottom center;
  transform: rotate(0deg);
  border-radius: 2px;
  transition: transform 0.08s ease, background 0.15s ease;
}

.afinometro-aguja.cerca {
  background: #d9a441;
}

.afinometro-aguja.centrado {
  background: #2f8a4c;
}

.afinometro-texto {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--bone-dim);
  min-width: 3.5em;
  text-align: center;
}

.nav-principal {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.nav-principal a {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--bone-dim);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.nav-principal a:hover {
  border-color: var(--crimson);
}

.nav-principal a.activo {
  background: var(--crimson);
  border-color: var(--crimson);
  color: var(--bone);
}

/* Separa el menú en "Guía" / practicar / seguimiento / consulta, en vez de
   una lista plana de 10 enlaces sin ninguna jerarquía entre ellos. */
.nav-sep {
  width: 1px;
  align-self: stretch;
  background: var(--line);
  margin: 0.15rem 0.15rem;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.hub-tarjeta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.hub-tarjeta:hover {
  border-color: var(--crimson);
  transform: translateY(-2px);
}

.hub-icono {
  font-size: 1.8rem;
}

.hub-nombre {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--bone);
}

.hub-detalle {
  font-size: 0.85rem;
  color: var(--bone-dim);
  line-height: 1.5;
}

.campo-volumen {
  margin-bottom: 1.25rem;
}

.nota-grande {
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
  font-size: 2.6rem;
  font-weight: 600;
  text-align: center;
  color: var(--bone);
  padding: 0.5rem 0;
}

.grafico-pitch {
  width: 100%;
  height: 120px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.marcador {
  color: var(--bone-dim);
  font-size: 0.9rem;
  margin: 0;
}

.marcador strong {
  color: var(--bone);
}

.opciones-quiz {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 0.5rem;
}

.opciones-quiz button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.55rem 0.4rem;
  border-radius: 8px;
  cursor: pointer;
}

.opciones-quiz button:hover:not(:disabled) {
  border-color: var(--crimson);
}

.opciones-quiz button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.opciones-quiz button.correcta {
  background: #1f5c33;
  border-color: #2f8a4c;
  color: var(--claro-fijo);
}

.opciones-quiz button.incorrecta {
  background: var(--wine);
  border-color: var(--crimson);
  color: var(--claro-fijo);
}

.tarjetas-progreso {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.75rem;
}

.tarjeta-progreso {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem;
}

.tarjeta-progreso .valor {
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--bone);
  display: block;
}

.tarjeta-progreso .etiqueta {
  font-size: 0.78rem;
  color: var(--muted);
}

.rutina-lista {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.rutina-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
}

.rutina-item.completado {
  border-color: #2f8a4c;
  opacity: 0.75;
}

.rutina-item .rutina-info {
  flex: 1;
}

.rutina-item .rutina-nombre {
  color: var(--bone);
  font-weight: 500;
  font-size: 0.92rem;
  display: block;
}

.rutina-item .rutina-detalle {
  color: var(--muted);
  font-size: 0.78rem;
}

.rutina-item button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--bone);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  font-size: 0.9rem;
}

.rutina-item button:hover {
  border-color: var(--crimson);
}

.rutina-item input[type="checkbox"] {
  accent-color: #2f8a4c;
  width: 1.2rem;
  height: 1.2rem;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.75rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.tab,
.subtab {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.6rem 0.25rem;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.tab:hover,
.subtab:hover {
  color: var(--bone-dim);
}

.tab.activo,
.subtab.activo {
  color: var(--bone);
  border-bottom-color: var(--crimson-bright);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel.comunes {
  background: var(--panel-2);
}

.campo {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--bone-dim);
}

.campo span {
  color: var(--bone);
}

.campo.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
}

.campo.checkbox span {
  color: var(--bone-dim);
}

input[type="text"],
input[type="number"],
select,
textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.5rem 0.6rem;
}

textarea {
  resize: vertical;
  min-height: 4.5em;
}

.metronomo-visual {
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
}

.metronomo-punto {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--panel-2);
  border: 2px solid var(--line);
  transition: background 0.05s ease, transform 0.05s ease;
}

.metronomo-punto.pulso {
  background: var(--crimson-bright);
  transform: scale(1.15);
}

.metronomo-punto.pulso.acento {
  background: #ffb347;
}

.metronomo-punto.mini {
  width: 12px;
  height: 12px;
  border-width: 1px;
  flex-shrink: 0;
}

/* Barra compacta: el metrónomo se puede iniciar/parar y ajustar desde
   cualquier pestaña de la página, no solo desde la pestaña "Metrónomo". */
.metronomo-flotante {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  margin: 0 0 1.25rem;
  padding: 0.5rem 0.75rem;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--muted);
}

.metronomo-flotante .campo-inline {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.metronomo-flotante input[type="range"] {
  width: 90px;
  accent-color: var(--crimson-bright);
}

.metronomo-flotante output {
  font-variant-numeric: tabular-nums;
  min-width: 2ch;
}

.metronomo-flotante .boton {
  padding: 0.3rem 0.65rem;
  font-size: 0.9rem;
}

.metronomo-flotante .boton.en-marcha {
  background: var(--crimson);
  border-color: var(--crimson);
  color: var(--bone);
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  outline: 1px solid var(--crimson-bright);
  outline-offset: 1px;
}

input[type="range"] {
  accent-color: var(--crimson-bright);
  width: 100%;
}

input[type="checkbox"] {
  accent-color: var(--crimson-bright);
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
}

.descripcion {
  margin: -0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.descripcion a {
  color: var(--crimson-bright);
  font-weight: 600;
  text-decoration: none;
}

.descripcion a:hover {
  text-decoration: underline;
}

.avanzado {
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
}

.avanzado summary {
  cursor: pointer;
  color: var(--bone-dim);
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
}

.avanzado > label {
  margin-top: 0.75rem;
}

.acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0 0.75rem;
}

.boton {
  appearance: none;
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.65rem 1.1rem;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

.boton:hover:not(:disabled) {
  border-color: var(--crimson);
}

.boton:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.boton.principal {
  background: var(--crimson);
  border-color: var(--crimson);
}

.boton.principal:hover:not(:disabled) {
  background: var(--crimson-bright);
  border-color: var(--crimson-bright);
}

.estado {
  min-height: 1.2em;
  font-size: 0.88rem;
  color: var(--bone-dim);
}

.resultado {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-top: 0.5rem;
}

.resultado h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
}

.resultado p {
  color: var(--bone-dim);
  font-size: 0.9rem;
  margin: 0;
  word-break: break-word;
}

.resultados-canto {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.resultado-nota {
  font-size: 0.85rem;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--bone-dim);
}

.titulo-seccion {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--bone);
  margin: 1.5rem 0 0.6rem;
}

.calendario-racha {
  overflow-x: auto;
  padding-bottom: 0.35rem;
}

.calendario-grid {
  display: flex;
  gap: 3px;
  width: max-content;
}

.calendario-semana {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.calendario-dia {
  width: 11px;
  height: 11px;
  border-radius: 2px;
  background: var(--panel-2);
  border: 1px solid var(--line);
}

.calendario-dia.completado {
  background: var(--crimson-bright);
  border-color: var(--crimson-bright);
}

.calendario-dia.hoy {
  outline: 1px solid var(--bone-dim);
  outline-offset: 1px;
}

.calendario-leyenda {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

.opciones-guia {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.opcion-guia {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-align: left;
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--bone);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.opcion-guia:hover,
.opcion-guia:focus-visible {
  border-color: var(--crimson-bright);
}

.opcion-guia-icono {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.recomendacion {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  margin-bottom: 0.85rem;
}

.recomendacion-pagina {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.recomendacion h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  margin: 0.2rem 0 0.4rem;
  color: var(--bone);
}

.recomendacion p {
  color: var(--bone-dim);
  font-size: 0.9rem;
  margin: 0 0 0.8rem;
}

.grabaciones-lista {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.grabacion-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
}

.grabacion-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 140px;
  flex: 1 1 140px;
}

.grabacion-etiqueta {
  color: var(--bone);
  font-weight: 600;
  font-size: 0.92rem;
}

.grabacion-detalle {
  color: var(--muted);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.grabacion-item audio {
  flex: 1 1 220px;
  max-width: 100%;
  height: 34px;
}

.brillo-medidor {
  margin-top: 1rem;
}

.brillo-etiqueta {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--bone-dim);
  margin-bottom: 0.4rem;
}

.brillo-etiqueta span:last-child {
  color: var(--bone);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.brillo-pista {
  height: 10px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  overflow: hidden;
}

.brillo-barra {
  height: 100%;
  width: 0%;
  background: var(--crimson-bright);
  transition: width 0.12s linear;
}

.pie {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.pie p {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0;
}

.boton-tema {
  appearance: none;
  position: absolute;
  top: 0;
  right: 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--bone);
  font-size: 0.95rem;
  line-height: 1;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.boton-tema:hover {
  border-color: var(--crimson);
}

.glosario-lista {
  margin-top: 1rem;
}

.glosario-termino {
  border-bottom: 1px solid var(--line);
  padding: 0.9rem 0;
}

.glosario-termino:last-child {
  border-bottom: none;
}

.glosario-termino h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--bone);
  margin: 0;
}

.glosario-termino p {
  color: var(--bone-dim);
  font-size: 0.9rem;
  margin: 0.3rem 0 0;
}

.glosario-instagram {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
}

.catalogo-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.65rem;
}

.catalogo-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1 1 220px;
}

.catalogo-nombre {
  color: var(--bone);
  font-weight: 600;
  font-size: 0.95rem;
}

.catalogo-detalle {
  color: var(--muted);
  font-size: 0.8rem;
}

.logros-lista {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.6rem;
}

.logro {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  text-align: center;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.8rem 0.5rem;
  opacity: 0.45;
  filter: grayscale(1);
}

.logro.conseguido {
  opacity: 1;
  filter: none;
  border-color: var(--crimson);
}

.logro-icono {
  font-size: 1.6rem;
}

.logro-nombre {
  font-size: 0.78rem;
  color: var(--bone-dim);
  font-weight: 500;
}

.logro.conseguido .logro-nombre {
  color: var(--bone);
}

.campos-mapa {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 0.75rem 1rem;
  margin-bottom: 0.75rem;
}

.mapa-vocal-contenedor {
  overflow-x: auto;
  min-width: 0; /* el padre es flex-column: sin esto no se encoge y no llega a hacer scroll */
  margin-top: 1rem;
  background: #ffffff;
  border-radius: 10px;
  padding: 0.5rem;
}

.mapa-vocal-contenedor svg {
  display: block;
}

@media (max-width: 480px) {
  .cabecera h1 {
    font-size: 1.7rem;
  }
}