:root {
  --bg: #ffffff;
  --fg: #000000;
  --accent: #000000;
  --border-soft: #dddddd;
  --border-strong: #000000;
  --note-C: #ff5555; /* rojo */
  --note-D: #ffae00; /* naranja */
  --note-E: #ffd700; /* amarillo */
  --note-F: #55cc55; /* verde */
  --note-G: #3399ff; /* azul */
  --note-A: #aa55ff; /* violeta */
  --note-B: #ff66aa; /* rosa */
  --card-radius: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
               "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

header {
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

/* Cabecera con portada centrada */
.main-header {
  display: flex;
  flex-direction: column;   /* imagen arriba, texto abajo */
  align-items: center;      /* centrado horizontal */
  text-align: center;       /* centra h1 y subtítulo */
  gap: 0.75rem;
}

.header-cover {
  display: block;
  max-height: 200px;        /* ajusta tamaño si hace falta */
  width: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  margin-bottom: 0.5rem;
}


h1 {
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.subtitle {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  opacity: 0.7;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: 20px;
  align-items: flex-start;
}

.left-column,
.right-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (max-width: 800px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* DÍAS PRE-CREADOS */

.days-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 16px 14px 14px;
  display: flex;
  flex-direction: column;
  max-height: 400px;   /* 👉 ajusta este valor si quieres más/menos alto */
}


.card-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 6px;
}

.card-sub {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.7;
  margin-bottom: 12px;
}

.day-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;   /* 👉 scroll solo aquí */
}



.day-row {
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.day-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.day-notes {
  flex: 1;
  font-size: 0.8rem;
  text-align: center;
  opacity: 0.9;
}

/* BOTONES */

.btn {
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: #000000;
  color: #ffffff;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn-outline {
  background: transparent;
  color: #000000;
}

.btn:hover:not(:disabled) {
  filter: invert(1);
}

/* PANEL DE TEXTO */

.input-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 16px 14px 14px;
}

textarea {
  width: 100%;
  min-height: 80px;
  resize: vertical;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 0.9rem;
  background: #f8f8f8;
}

.input-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 6px;
}

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
  margin-bottom: 8px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

.toggle input {
  accent-color: #000000;
}

.tempo-control {
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tempo-control input[type="number"],
.tempo-control select {
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: #ffffff;
}

/* VISUALIZACIÓN DE NOTAS */

.notes-visual {
  border-top: 1px solid var(--border-soft);
  margin-top: 10px;
  padding-top: 10px;
  font-size: 0.8rem;
}

.notes-line {
  margin-bottom: 6px;
}

.note-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.note-pill {
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(0,0,0,0.08);
  background: #ffffff;
}

/* ✨ Animación de glow para bolitas de nota */
@keyframes note-glow-pulse {
  0% {
    box-shadow:
      0 0 0 0 rgba(0,0,0,0.15),
      0 0 0 0 var(--note-color, transparent);
    transform: scale(1);
  }
  50% {
    box-shadow:
      0 0 4px rgba(0,0,0,0.25),
      0 0 14px var(--note-color, rgba(0,0,0,0.7));
    transform: scale(1.15);
  }
  100% {
    box-shadow:
      0 0 0 0 rgba(0,0,0,0.15),
      0 0 0 0 var(--note-color, transparent);
    transform: scale(1);
  }
}

.note-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.3);
  flex-shrink: 0;

  /* el color real viene de la variable */
  background: var(--note-color, #000000);

  /* glow animado */
  animation: note-glow-pulse 2.6s ease-in-out infinite;
}


.empty-msg {
  opacity: 0.6;
  font-size: 0.78rem;
  font-style: italic;
}

/* CÍRCULO DE NOTAS + COLTRANE */

.circle-wrapper {
  margin-top: 14px;
  border-top: 1px solid var(--border-soft);
  padding-top: 10px;
}

.circle-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 6px;
  opacity: 0.8;
}

#notes-circle {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}

/* FX CONTROLS */

.fx-controls {
  margin-top: 12px;
  border-top: 1px dashed var(--border-soft);
  padding-top: 8px;
}

.fx-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 4px;
  opacity: 0.8;
}

.fx-pitch-row {
  margin-bottom: 6px;
}

.fx-field {
  font-size: 0.72rem;
}

.fx-field-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.fx-field-label span {
  font-size: 0.7rem;
  opacity: 0.7;
}

.fx-field input[type="range"] {
  width: 100%;
}

.fx-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px 12px;
  margin-top: 4px;
}

/* SLIDERS NEGROS */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 999px;
  background: #000000;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #000000;
  border: 2px solid #000000;
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #000000;
  border: 2px solid #000000;
  cursor: pointer;
}

input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: #000000;
}

/* LEYENDA NOTAS → COLORES */

.legend-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 10px 12px;
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.legend-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  opacity: 0.7;
}

.legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.legend-pill {
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.1);
  font-size: 0.72rem;
  padding: 2px 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* FOOTER */

footer {
  margin-top: 30px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  opacity: 0.6;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--border-soft);
  padding-top: 10px;
}

footer a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(0,0,0,0.3);
}

/* MÁSTIL DE GUITARRA */

.fretboard-wrapper {
  margin-top: 10px;
  border-top: 1px solid var(--border-soft);
  padding-top: 8px;
}

.fretboard-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  opacity: 0.8;
  margin-bottom: 4px;
}

.fretboard-cards {
  display: flex;
  flex-wrap: wrap;         /* 👉 permite varias filas */
  gap: 8px;
  padding-bottom: 4px;
  overflow-x: hidden;      /* sin scroll horizontal */
  justify-content: flex-start;
}


.fretboard-card {
  min-width: 90px;
  max-width: 110px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: #ffffff;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.fretboard-card.is-active {
  border-color: #000000;
  box-shadow: 0 0 0 1px #000000;
  transform: translateY(-2px);
}

/* Ahora el diagrama tipo “chord chart”: cuerdas verticales, trastes horizontales */

.fretboard {
  width: 100%;
  aspect-ratio: 3 / 4;
  display: grid;
  grid-template-columns: repeat(6, 1fr); /* 6 cuerdas */
  grid-template-rows: repeat(5, 1fr);    /* cejuela + 4 trastes */
  background: #ffffff;
  border-left: 1px solid #000000;
  border-right: 1px solid #000000;
}

.fretboard-cell {
  position: relative;
  border-bottom: 1px solid #000000; /* trastes */
  border-right: 1px solid rgba(0, 0, 0, 0.3); /* cuerdas */
}

.fretboard-cell:nth-child(6n) {
  border-right: none; /* última cuerda sin doble borde */
}

/* Cejuela: fila superior negra sólida */
.fretboard-cell.is-nut {
  background: #000000;
  border-top: 2px solid #000000;
  border-bottom: 1px solid #000000;
}



/* Puntos de los dedos: centrados EN la cuerda (línea vertical) */
/* Glow animado para los puntos del mástil */
@keyframes fret-hit-glow {
  0% {
    box-shadow:
      0 0 0 2px #ffffff,
      0 0 0 0 var(--hit-color, #000000);
  }
  50% {
    box-shadow:
      0 0 0 2px #ffffff,
      0 0 16px var(--hit-color, #000000);
  }
  100% {
    box-shadow:
      0 0 0 2px #ffffff,
      0 0 0 0 var(--hit-color, #000000);
  }
}

/* Puntos de los dedos: centrados EN la cuerda (línea vertical) */
.fretboard-cell.is-hit::before {
  content: "";
  position: absolute;
  top: 50%;
  right: -1px;                 /* pegado a la línea (border-right) */
  transform: translate(50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid #000000;
  background: var(--hit-color, #000000);
  animation: fret-hit-glow 2.3s ease-in-out infinite;
}


.fretboard-note-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* TROMPETA */

.trumpet-wrapper {
  margin-top: 10px;
  border-top: 1px solid var(--border-soft);
  padding-top: 8px;
}

.trumpet-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  opacity: 0.8;
  margin-bottom: 4px;
}

.trumpet-cards {
  display: flex;
  flex-wrap: wrap;         /* 👉 varias filas */
  gap: 8px;
  padding-bottom: 4px;
  overflow-x: hidden;      /* sin scroll horizontal */
  justify-content: flex-start;
}


.trumpet-card {
  min-width: 70px;
  max-width: 80px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 4px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: #ffffff;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.trumpet-card.is-active {
  border-color: #000000;
  box-shadow: 0 0 0 1px #000000;
  transform: translateY(-2px);
}

.trumpet-valves {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: center;
}

.trumpet-valve {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 1px solid #000000;
  background: #ffffff;
  position: relative;
}

/* Glow animado cuando el pistón está abajo */
@keyframes trumpet-valve-glow {
  0% {
    box-shadow:
      0 0 0 2px #ffffff,
      0 0 0 0 var(--valve-color, #000000);
  }
  50% {
    box-shadow:
      0 0 0 2px #ffffff,
      0 0 16px var(--valve-color, #000000);
  }
  100% {
    box-shadow:
      0 0 0 2px #ffffff,
      0 0 0 0 var(--valve-color, #000000);
  }
}

/* Pistón “abajo”: se rellena con el color de la nota + glow */
.trumpet-valve.is-down {
  background: var(--valve-color, #000000);
  animation: trumpet-valve-glow 2.1s ease-in-out infinite;
}


/* Pequeño brillo para que parezca botón metálico */
.trumpet-valve::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.15);
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.7), transparent);
}

.trumpet-note-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* PANEL ECUALIZADOR */

.eq-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 10px 12px 12px;
  margin-top: 8px;
}

.eq-card .card-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 2px;
}

.eq-card .card-sub {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  opacity: 0.7;
  margin-bottom: 6px;
}

.eq-card canvas {
  width: 100%;
  height: 70px;     /* altura visual del ecualizador */
  display: block;
}


/* CANCIONES DESTACADAS · FULL WIDTH BAJO EL HEADER */

.featured-tracks {
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 10px 12px 12px;
  margin: 16px 0 22px;
  background: #fafafa;
}

/* Encabezado de la barra */
.featured-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.featured-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.featured-hint {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  opacity: 0.6;
}

/* Slider horizontal de tarjetas */
.featured-slider {
  margin-top: 8px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 4px 0;
  scroll-snap-type: x mandatory;
}

/* Scrollbar fino (sin romper funcionalidad) */
.featured-slider::-webkit-scrollbar {
  height: 6px;
}
.featured-slider::-webkit-scrollbar-track {
  background: transparent;
}
.featured-slider::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 999px;
}

/* Tarjeta tipo trading card */
.track-card {
  scroll-snap-align: start;
  min-width: 130px;
  max-width: 150px;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  background: #ffffff;
  padding: 6px 6px 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.72rem;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(0,0,0,0.04);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.track-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.12);
  border-color: var(--border-strong);
}

/* Imagen cuadrada */
.track-cover {
  width: 100%;
  aspect-ratio: 1 / 1;   /* cuadrado perfecto */
  border-radius: 8px;
  overflow: hidden;
  background: #eaeaea;
}

.track-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Textos de la tarjeta */
.track-name {
  margin-top: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.track-notes {
  opacity: 0.85;
}

.track-meta {
  font-size: 0.68rem;
  opacity: 0.7;
}

/* En móvil sigue siendo full width pero con cards grandes y scroll cómodo */
@media (max-width: 800px) {
  .featured-tracks {
    margin-top: 12px;
    padding: 10px 10px 12px;
  }

  .track-card {
    min-width: 140px;
  }
}

.track-card.is-active {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.16);
  border-color: var(--border-strong);
}




/* TARJETA DESCARGABLE DE LA CANCIÓN */

.card-export {
  border: 1px solid var(--border-soft);
  border-radius: var(--card-radius);
  padding: 10px 12px 12px;
  background: #fafafa;
  margin-top: 10px;
}

.card-export-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 4px;
}

.card-export-sub {
  font-size: 0.72rem;
  opacity: 0.7;
  margin-bottom: 8px;
}

.card-export-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.card-export-cover {
  width: 90px;
  height: 90px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  background: #eaeaea;
  flex-shrink: 0;
}

.card-export-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-export-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.upload-label {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: #ffffff;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.upload-label input[type="file"] {
  display: none;
}

.download-card-btn {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #000000;
  background: #000000;
  color: #ffffff;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  cursor: pointer;
}

.download-card-btn:hover {
  opacity: 0.85;
}

@media (max-width: 800px) {
  .card-export-row {
    align-items: flex-start;
  }
}


/* Botón Mute en la fila de controles */

.mute-btn {
  padding-inline: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.mute-btn i {
  font-size: 0.9rem;
}

/* Estado activo (cuando está muteado) */
.mute-btn.is-muted {
  background: #000000;
  color: #ffffff;
  border-color: #000000;
}