/* ==========================================================================
   TARAREA STUDIO · shared.css v1
   Sistema visual común para módulos HTML
   Objetivo: centralizar estilos base sin romper módulos existentes.
   ========================================================================== */

:root{
  --am-bg:#faf8f5;
  --am-bg-2:#ffffff;
  --am-bg-3:#f3f0ea;
  --am-bg-4:#ebe6de;

  --am-border:rgba(0,0,0,.07);
  --am-border-2:rgba(0,0,0,.13);

  --am-text:#1a1917;
  --am-text-2:#5a5650;
  --am-text-3:#9e9a94;

  --am-amber:#c47f2e;
  --am-amber-bg:rgba(196,127,46,.12);
  --am-amber-border:rgba(196,127,46,.28);

  --am-purple:#6b52d6;
  --am-purple-bg:rgba(107,82,214,.10);
  --am-purple-border:rgba(107,82,214,.22);

  --am-teal:#1a8a6e;
  --am-teal-bg:rgba(26,138,110,.10);
  --am-teal-border:rgba(26,138,110,.22);

  --am-coral:#c94a3a;
  --am-coral-bg:rgba(201,74,58,.10);

  --am-green:#1f8a52;
  --am-green-bg:rgba(31,138,82,.10);
  --am-green-border:rgba(31,138,82,.22);

  --am-blue:#2874c7;
  --am-blue-bg:rgba(40,116,199,.10);

  --am-font-display:'DM Serif Display', Georgia, serif;
  --am-font-body:'DM Sans', Arial, sans-serif;
  --am-font-mono:'DM Mono', Consolas, monospace;

  --am-radius-xs:6px;
  --am-radius-sm:8px;
  --am-radius-md:12px;
  --am-radius-lg:16px;

  --am-shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --am-shadow-md:0 6px 20px rgba(0,0,0,.10);
}

/* Reset seguro */
.am-scope *,
.am-scope *::before,
.am-scope *::after{
  box-sizing:border-box;
}

/* Base opcional para módulos nuevos */
.am-page{
  background:var(--am-bg);
  color:var(--am-text);
  font-family:var(--am-font-body);
  font-size:14px;
  line-height:1.6;
  min-height:100vh;
}

.am-header{
  height:50px;
  border-bottom:1px solid var(--am-border);
  background:rgba(250,248,245,.97);
  backdrop-filter:blur(10px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 18px;
  position:sticky;
  top:0;
  z-index:100;
}

.am-header::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--am-purple),var(--am-amber),var(--am-teal),var(--am-coral));
}

html.in-iframe .am-header{
  display:none!important;
}

.am-container{
  max-width:1100px;
  margin:0 auto;
  padding:24px;
}

.am-layout{
  display:grid;
  grid-template-columns:260px 1fr;
  min-height:calc(100vh - 50px);
}

.am-sidebar{
  border-right:1px solid var(--am-border);
  background:linear-gradient(180deg,#fdf9f4,#f5f0ea);
  position:sticky;
  top:50px;
  height:calc(100vh - 50px);
  overflow-y:auto;
}

html.in-iframe .am-sidebar{
  top:0;
  height:100vh;
}

.am-main{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:16px;
}

/* Tipografía */
.am-title{
  font-family:var(--am-font-display);
  font-size:28px;
  line-height:1.15;
  margin:0 0 8px;
}

.am-subtitle{
  color:var(--am-text-2);
  font-size:13px;
  line-height:1.65;
  margin:0 0 14px;
}

.am-section-title{
  font-size:14px;
  font-weight:600;
  color:var(--am-text);
  margin:0 0 8px;
  display:flex;
  align-items:center;
  gap:8px;
}

.am-section-title::before{
  content:'';
  width:3px;
  height:15px;
  border-radius:2px;
  background:linear-gradient(var(--am-amber),var(--am-purple));
  display:block;
  flex-shrink:0;
}

.am-muted{
  color:var(--am-text-3);
}

/* Cards */
.am-card{
  background:var(--am-bg-2);
  border:1px solid var(--am-border);
  border-radius:var(--am-radius-md);
  padding:18px;
  box-shadow:none;
}

.am-card-soft{
  background:linear-gradient(135deg,var(--am-amber-bg),var(--am-purple-bg));
  border:1px solid var(--am-amber-border);
  border-radius:var(--am-radius-md);
  padding:18px;
}

/* Botones */
.am-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  font-family:var(--am-font-body);
  font-size:12px;
  font-weight:600;
  padding:7px 13px;
  border-radius:var(--am-radius-sm);
  border:1px solid var(--am-border-2);
  background:var(--am-bg-2);
  color:var(--am-text-2);
  cursor:pointer;
  text-decoration:none;
  transition:all .15s ease;
}

.am-btn:hover{
  border-color:var(--am-purple-border);
  background:var(--am-purple-bg);
  color:var(--am-purple);
}

.am-btn-primary{
  background:var(--am-purple);
  border-color:var(--am-purple);
  color:#fff;
}

.am-btn-primary:hover{
  background:#5140b8;
  color:#fff;
}

.am-btn-amber{
  background:var(--am-amber);
  border-color:var(--am-amber);
  color:#fff;
}

.am-btn-amber:hover{
  background:#a06020;
  color:#fff;
}

/* Badges */
.am-badge{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:10px;
  font-weight:600;
  padding:2px 8px;
  border-radius:999px;
  border:1px solid var(--am-border-2);
  background:var(--am-bg-3);
  color:var(--am-text-2);
}

.am-badge-next{
  background:var(--am-amber-bg);
  color:var(--am-amber);
  border-color:var(--am-amber-border);
}

.am-badge-soon{
  background:var(--am-bg-4);
  color:var(--am-text-3);
}

.am-badge-ok{
  background:var(--am-green-bg);
  color:var(--am-green);
  border-color:var(--am-green-border);
}

/* Alertas */
.am-alert{
  border-left:4px solid var(--am-amber);
  background:var(--am-amber-bg);
  border-radius:0 var(--am-radius-sm) var(--am-radius-sm) 0;
  padding:12px 14px;
  color:var(--am-text-2);
  font-size:12px;
  line-height:1.65;
}

.am-alert-purple{
  border-color:var(--am-purple);
  background:var(--am-purple-bg);
}

.am-alert-green{
  border-color:var(--am-green);
  background:var(--am-green-bg);
}

/* Navegación lateral */
.am-nav-label{
  font-family:var(--am-font-mono);
  font-size:9px;
  letter-spacing:.10em;
  text-transform:uppercase;
  color:var(--am-text-3);
  padding:0 16px;
  margin:16px 0 6px;
}

.am-nav-item{
  display:flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-left:2px solid transparent;
  color:var(--am-text-2);
  font-size:12px;
  text-decoration:none;
  cursor:pointer;
  transition:all .15s ease;
}

.am-nav-item:hover,
.am-nav-item.active{
  background:var(--am-amber-bg);
  color:var(--am-amber);
  border-left-color:var(--am-amber);
}

/* Tablas */
.am-table{
  width:100%;
  border-collapse:collapse;
  background:var(--am-bg-2);
  border-radius:var(--am-radius-md);
  overflow:hidden;
}

.am-table th,
.am-table td{
  border:1px solid var(--am-border);
  padding:8px 10px;
  font-size:12px;
  vertical-align:top;
}

.am-table th{
  background:var(--am-bg-3);
  color:var(--am-text-3);
  font-family:var(--am-font-mono);
  font-size:10px;
  text-transform:uppercase;
  letter-spacing:.05em;
  text-align:left;
}

/* Placeholder estándar */
.am-placeholder{
  max-width:860px;
  margin:0 auto;
  padding:28px;
}

.am-placeholder .am-card{
  min-height:220px;
}

/* Piano visual común */
.am-piano-scroll{
  overflow-x:auto;
  overflow-y:visible;
  padding-bottom:10px;
}

.am-piano-outer{
  position:relative;
  padding-top:72px;
  overflow:visible;
  display:inline-block;
  min-width:100%;
}

.am-piano{
  position:relative;
  display:flex;
  height:116px;
}

.am-key-white{
  width:28px;
  height:112px;
  border:1px solid var(--am-border-2);
  border-radius:0 0 5px 5px;
  background:linear-gradient(180deg,#fff,#f8f5f0);
  position:relative;
  z-index:1;
  cursor:pointer;
  flex-shrink:0;
  display:flex;
  align-items:flex-end;
  justify-content:center;
  padding-bottom:4px;
  box-shadow:0 2px 4px rgba(0,0,0,.08);
}

.am-key-black{
  width:18px;
  height:68px;
  background:linear-gradient(180deg,#2a2825,#1a1917);
  border-radius:0 0 5px 5px;
  position:absolute;
  z-index:10;
  top:0;
  cursor:pointer;
  display:flex;
  align-items:flex-end;
  justify-content:center;
  padding-bottom:4px;
  box-shadow:2px 3px 6px rgba(0,0,0,.5);
}

.am-key-label{
  font-family:var(--am-font-mono);
  font-size:7px;
  color:var(--am-text-3);
  pointer-events:none;
  text-align:center;
  line-height:1.2;
}

/* Responsive */
@media(max-width:760px){
  .am-layout{
    grid-template-columns:1fr;
  }

  .am-sidebar{
    position:static;
    height:auto;
    border-right:none;
    border-bottom:1px solid var(--am-border);
  }

  .am-main,
  .am-container{
    padding:16px;
  }

  .am-title{
    font-size:24px;
  }
}

/* Scrollbars */
::-webkit-scrollbar{
  width:4px;
  height:4px;
}
::-webkit-scrollbar-thumb{
  background:var(--am-bg-4);
  border-radius:2px;
}


/* ==========================================================================
   PIANO DOCK UNIVERSAL v1
   ========================================================================== */
.am-has-piano-dock body{
  padding-bottom:260px;
}

.am-piano-dock{
  position:fixed;
  left:14px;
  right:14px;
  bottom:14px;
  z-index:9999;
  background:rgba(250,248,245,.98);
  backdrop-filter:blur(12px);
  border:1px solid var(--am-border-2);
  border-radius:16px;
  box-shadow:0 12px 38px rgba(0,0,0,.18);
  color:var(--am-text);
  font-family:var(--am-font-body);
  overflow:hidden;
}

.am-piano-dock[data-position="top"]{
  top:14px;
  bottom:auto;
}

.am-dock-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:8px 10px;
  border-bottom:1px solid var(--am-border);
  background:linear-gradient(135deg,var(--am-amber-bg),var(--am-purple-bg));
}

.am-dock-pill{
  border:1px solid var(--am-amber-border);
  background:var(--am-amber);
  color:#fff;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  padding:5px 12px;
  cursor:pointer;
}

.am-dock-compact{
  flex:1;
  font-family:var(--am-font-mono);
  font-size:11px;
  color:var(--am-text-2);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.am-dock-actions{
  display:flex;
  gap:5px;
  flex-wrap:wrap;
}

.am-dock-btn,
.am-dock-mini{
  border:1px solid var(--am-border-2);
  background:var(--am-bg-2);
  color:var(--am-text-2);
  border-radius:8px;
  padding:5px 9px;
  font-size:11px;
  font-weight:700;
  cursor:pointer;
  transition:all .15s;
}

.am-dock-btn:hover,
.am-dock-mini:hover{
  background:var(--am-purple-bg);
  color:var(--am-purple);
  border-color:var(--am-purple-border);
}

.am-piano-dock.recording .am-dock-pill,
.am-piano-dock.recording [data-action="record"]{
  background:var(--am-coral);
  border-color:var(--am-coral);
  color:#fff;
}

.am-piano-dock.metro-on [data-action="metro"]{
  background:var(--am-green);
  border-color:var(--am-green);
  color:#fff;
  font-variant-numeric:tabular-nums;
}

/* v31b (D-0008): el botón se aclara en el 1 de cada compás. */
.am-piano-dock.metro-on[data-metro-beat="1"] [data-action="metro"]{
  filter:brightness(1.18);
}

.am-dock-body{
  padding:8px 10px 10px;
  display:grid;
  grid-template-columns:minmax(420px,1fr) 320px;
  gap:10px;
}

.am-piano-dock.collapsed .am-dock-body{
  display:none;
}

.am-piano-dock.collapsed{
  left:auto;
  width:min(520px,calc(100vw - 28px));
}

.am-dock-controls{
  grid-column:1 / -1;
  display:flex;
  align-items:center;
  gap:7px;
  flex-wrap:wrap;
}

.am-dock-controls label{
  display:flex;
  align-items:center;
  gap:4px;
  font-family:var(--am-font-mono);
  font-size:10px;
  color:var(--am-text-3);
  white-space:nowrap;
}

.am-dock-controls select,
.am-dock-controls input[type="number"]{
  font-family:var(--am-font-mono);
  font-size:11px;
  padding:4px 7px;
  border-radius:7px;
  border:1px solid var(--am-border-2);
  background:var(--am-bg-2);
  color:var(--am-text);
}

.am-dock-controls input[type="range"]{
  width:76px;
  accent-color:var(--am-amber);
}

.am-dock-piano-scroll{
  overflow-x:auto;
  overflow-y:visible;
  padding-bottom:6px;
}

.am-dock-piano-scroll .piano-outer,
.am-dock-piano-scroll .am-piano-outer{
  padding-top:0;
}

.am-dock-piano-scroll .wk,
.am-dock-piano-scroll .am-key-white{
  width:26px;
  height:92px;
}

.am-dock-piano-scroll .bk,
.am-dock-piano-scroll .am-key-black{
  width:17px;
  height:56px;
}

.am-dock-ideas{
  border-left:1px solid var(--am-border);
  padding-left:10px;
  max-height:136px;
  overflow:auto;
}

.am-dock-ideas-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  font-size:12px;
  margin-bottom:6px;
}

.am-dock-idea{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  border:1px solid var(--am-border);
  background:var(--am-bg-2);
  border-radius:9px;
  padding:6px 7px;
  margin-bottom:5px;
}

.am-dock-idea strong{
  display:block;
  font-size:11px;
  line-height:1.25;
}

.am-dock-idea small,
.am-dock-empty{
  display:block;
  font-size:10px;
  color:var(--am-text-3);
}

@media(max-width:900px){
  .am-has-piano-dock body{
    padding-bottom:300px;
  }
  .am-dock-body{
    grid-template-columns:1fr;
  }
  .am-dock-ideas{
    border-left:none;
    border-top:1px solid var(--am-border);
    padding-left:0;
    padding-top:8px;
  }
  .am-dock-controls{
    align-items:flex-start;
  }
}

@media(max-width:560px){
  .am-piano-dock{
    left:6px;
    right:6px;
    bottom:6px;
    border-radius:12px;
  }
  .am-dock-actions{
    justify-content:flex-end;
  }
  .am-dock-btn{
    padding:4px 7px;
    font-size:10px;
  }
}

/* ==========================================================================
   TARAREA STUDIO · Brand system v11
   Logo centralizado: assets/brand/tararea-studio-logo.webp
   Para cambiar la marca global, reemplazar ese archivo y conservar el mismo nombre.
   ========================================================================== */
.tm-sr-only{
  position:absolute!important;
  width:1px!important;height:1px!important;
  padding:0!important;margin:-1px!important;
  overflow:hidden!important;clip:rect(0,0,0,0)!important;
  white-space:nowrap!important;border:0!important;
}
.tm-brand-lockup{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-width:0;
  color:inherit;
  text-decoration:none;
}
.tm-brand-logo-img{
  display:block;
  width:44px;
  height:44px;
  object-fit:cover;
  border-radius:50%;
  flex:0 0 auto;
  background:#fff;
  box-shadow:0 2px 10px rgba(0,0,0,.08);
}
.tm-brand-word{
  display:block;
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.05;
  color:var(--text,var(--am-text,#1f1d1a));
}
.tm-brand-lockup--header .tm-brand-logo-img{width:38px;height:38px;}
.tm-brand-lockup--header .tm-brand-word{font-size:15px;}
.tm-brand-lockup--topbar .tm-brand-logo-img{width:46px;height:46px;}
.tm-brand-lockup--topbar .tm-brand-word{font-size:15px;}
.tm-brand-lockup--hero{
  display:flex;
  justify-content:center;
  width:100%;
  margin-bottom:.75rem;
}
.tm-brand-lockup--hero .tm-brand-logo-img{
  width:clamp(132px,22vw,188px);
  height:clamp(132px,22vw,188px);
  box-shadow:0 10px 34px rgba(0,0,0,.12);
}
.tm-brand-lockup__sub{
  display:block;
  font-size:11px;
  color:var(--tm-muted,var(--am-text-2,#6f6860));
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  line-height:1.2;
}
.hdr-logo.tm-brand-lockup{
  background:none!important;
  -webkit-background-clip:initial!important;
  background-clip:initial!important;
  -webkit-text-fill-color:initial!important;
}
.brand .tm-brand-logo-img,
.tm-brand .tm-brand-logo-img{width:46px;height:46px;}
@media(max-width:520px){
  .tm-brand-lockup--header .tm-brand-logo-img{width:34px;height:34px;}
  .tm-brand-lockup--header .tm-brand-word{font-size:14px;}
  .tm-brand-lockup--topbar .tm-brand-logo-img{width:40px;height:40px;}
  .tm-brand-lockup--topbar .tm-brand-word{font-size:14px;}
  .tm-brand-lockup--hero .tm-brand-logo-img{width:132px;height:132px;}
}

/* Tararea Studio v12 · Brand hardening */
.tm-brand-logo-img{
  border:1px solid rgba(0,0,0,.08);
}
.tm-brand-lockup--hero .tm-brand-logo-img{
  width:clamp(150px,20vw,210px);
  height:clamp(150px,20vw,210px);
}
.tm-brand-word{color:#1a1917!important;}
.in-iframe .tm-topbar,
.in-iframe .topbar{
  position:sticky;
  top:0;
  z-index:30;
}

/* Tararea Studio v15 · intención de trabajo visible */
.tm-intention-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border:1px solid rgba(107,82,214,.18);
  background:rgba(107,82,214,.07);
  color:#3c2d8a;
  border-radius:999px;
  padding:4px 9px;
  font-size:11px;
  font-weight:700;
  text-decoration:none;
}


/* ======================================================================
   TARAREA STUDIO · BrandShell v16
   Sistema común para módulos activos. Preparado para migración a React.
   ====================================================================== */
.tm-brand-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:10px 14px;
  border-bottom:1px solid rgba(0,0,0,.08);
  background:rgba(250,248,245,.97);
  backdrop-filter:blur(12px);
  position:sticky;
  top:0;
  z-index:220;
}
.tm-brand-shell__brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
  color:#1a1917;
  text-decoration:none;
}
.tm-brand-shell__logo{
  width:42px;
  height:42px;
  object-fit:cover;
  border-radius:50%;
  border:1px solid rgba(0,0,0,.08);
  background:#fff;
  box-shadow:0 3px 14px rgba(0,0,0,.08);
  flex:0 0 auto;
}
.tm-brand-shell__text{display:flex;flex-direction:column;line-height:1.12;min-width:0}
.tm-brand-shell__text strong{font-size:14px;font-weight:800;letter-spacing:-.02em;color:#1a1917;white-space:nowrap}
.tm-brand-shell__text small{font-size:11px;color:#6f6860;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:360px}
.tm-brand-shell__nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.tm-brand-shell__nav a{
  font-size:11px;
  font-weight:700;
  color:#4d453d;
  text-decoration:none;
  padding:6px 9px;
  border:1px solid rgba(0,0,0,.10);
  border-radius:999px;
  background:#fff;
  transition:all .15s ease;
}
.tm-brand-shell__nav a:hover{color:#6b52d6;border-color:rgba(107,82,214,.28);background:rgba(107,82,214,.08)}
.in-iframe .tm-brand-shell{display:none!important}
.tm-application-bridge{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  background:linear-gradient(135deg,rgba(107,82,214,.10),rgba(196,127,46,.10));
  border:1px solid rgba(107,82,214,.16);
  border-radius:14px;
  padding:12px 14px;
  margin:0 0 14px 0;
  color:#1a1917;
}
.tm-application-bridge__kicker{
  display:block;
  font-size:10px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#6b52d6;
  margin-bottom:2px;
}
.tm-application-bridge strong{display:block;font-size:14px;margin-bottom:2px;color:#1a1917}
.tm-application-bridge p{font-size:12px;line-height:1.55;color:#5a5650;margin:0;max-width:720px}
.tm-application-bridge__actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;flex:0 0 auto}
.tm-application-bridge__actions a{
  font-size:11px;
  font-weight:800;
  text-decoration:none;
  color:#fff;
  background:#6b52d6;
  border-radius:999px;
  padding:7px 10px;
}
.tm-application-bridge__actions a:nth-child(2){background:#1a8a6e}
@media(max-width:760px){
  .tm-brand-shell{align-items:flex-start;flex-direction:column;gap:8px;padding:9px 12px}
  .tm-brand-shell__nav{justify-content:flex-start}
  .tm-brand-shell__text small{max-width:260px}
  .tm-application-bridge{flex-direction:column;align-items:flex-start}
  .tm-application-bridge__actions{justify-content:flex-start}
}


/* ======================================================================
   TARAREA STUDIO · Sonido al entrar v21
   Controla solo la muestra breve inicial de cada tema.
   No afecta piano, grabaciones, ejercicios ni reproductores existentes.
   ====================================================================== */
.tm-entry-sound-control{
  display:inline-flex;
  align-items:center;
  gap:5px;
  flex-wrap:wrap;
}
.tm-entry-sound-toggle,
.tm-entry-sound-play{
  border:1px solid rgba(0,0,0,.12);
  background:#fff;
  color:#4d453d;
  border-radius:999px;
  padding:6px 9px;
  font-size:11px;
  font-weight:800;
  line-height:1;
  cursor:pointer;
  transition:all .15s ease;
  font-family:inherit;
  white-space:nowrap;
}
.tm-entry-sound-toggle:hover,
.tm-entry-sound-play:hover{
  border-color:rgba(107,82,214,.30);
  background:rgba(107,82,214,.08);
  color:#4b37b0;
}
.tm-entry-sound-control.is-on .tm-entry-sound-toggle{
  background:rgba(26,138,110,.10);
  border-color:rgba(26,138,110,.32);
  color:#0f6e56;
}
.tm-entry-sound-play{
  background:rgba(196,127,46,.12);
  border-color:rgba(196,127,46,.30);
  color:#7b4b14;
}
@media(max-width:760px){
  .tm-entry-sound-control{width:100%;}
  .tm-entry-sound-toggle,.tm-entry-sound-play{font-size:10px;padding:6px 8px;}
}


/* ======================================================================
   TARAREA STUDIO · Sonido al entrar visible v21
   El control debe verse de forma explícita en home y pantallas principales.
   ====================================================================== */
.tm-entry-sound-home-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  max-width:680px;
  margin:0 auto 1.05rem;
  padding:.85rem 1rem;
  border:1px solid rgba(107,82,214,.18);
  border-radius:16px;
  background:linear-gradient(135deg,rgba(255,255,255,.92),rgba(107,82,214,.055));
  box-shadow:0 8px 28px rgba(30,20,10,.055);
  text-align:left;
}
.tm-entry-sound-home-copy{display:flex;flex-direction:column;gap:2px;min-width:0}
.tm-entry-sound-home-copy strong{font-size:13px;color:#1a1917;line-height:1.2}
.tm-entry-sound-home-copy span{font-size:11px;color:#5a5650;line-height:1.45}
.tm-entry-sound-home-slot{display:flex;align-items:center;justify-content:flex-end;flex:0 0 auto}
.tm-entry-sound-inline-card,
.tm-entry-sound-page-slot{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:10px;
  padding:8px 12px;
  margin:8px auto;
  max-width:960px;
  border:1px solid rgba(0,0,0,.08);
  border-radius:14px;
  background:rgba(255,255,255,.86);
}
.tm-entry-sound-inline-card span:first-child{display:flex;flex-direction:column;line-height:1.25;margin-right:auto}
.tm-entry-sound-inline-card strong{font-size:12px;color:#1a1917}
.tm-entry-sound-inline-card small{font-size:10px;color:#5a5650}
.tm-entry-sound-page-slot{position:sticky;top:0;z-index:80;background:rgba(250,248,245,.94);backdrop-filter:blur(8px)}
@media(max-width:760px){
  .tm-entry-sound-home-card{align-items:flex-start;flex-direction:column;margin:.2rem 0 1rem;padding:.75rem}
  .tm-entry-sound-home-slot{justify-content:flex-start;width:100%}
  .tm-entry-sound-inline-card,.tm-entry-sound-page-slot{align-items:flex-start;flex-direction:column;justify-content:flex-start;margin:8px 10px}
}

/* ═══ Resaltado de notas en el piano (v31 · D-0007) ═══
   Las funciones AM.hlNote, hlNotes, hlChord, hlScale, hlInterval y hlProgression
   ponen estas clases; hasta v30 ningún CSS común las pintaba y cada lección
   repetía sus reglas. Esta es la paleta por defecto, solo el fondo de la tecla:
   fundamental morado · tercera ámbar · quinta verde · séptima azul · novena rosa ·
   escala morado claro · nota de acorde verde claro.
   Sin !important, sin barra inferior y sin tocar la etiqueta, a propósito: una
   lección con otro significado (Teoría pinta la fundamental en ámbar; Arreglo,
   el bajo en ámbar y el acorde en verde) lo declara en su <style> y se ve igual
   que antes. La escala va primero: en hlScale la fundamental lleva hl-sc y hl-r
   a la vez, y debe ganar hl-r. */
:is(.wk,.am-key-white).hl-sc{background:linear-gradient(180deg,#f1edfd,#e3dcfa)}
:is(.bk,.am-key-black).hl-sc{background:linear-gradient(180deg,#7d66dd,#5a44c2)}
:is(.wk,.am-key-white).hl-chord{background:linear-gradient(180deg,#e6f6f0,#cfeee2)}
:is(.bk,.am-key-black).hl-chord{background:linear-gradient(180deg,#2a9a7c,#1a7a60)}
:is(.wk,.am-key-white).hl-3{background:linear-gradient(180deg,#fde8c0,#f8d898)}
:is(.bk,.am-key-black).hl-3{background:linear-gradient(180deg,#c47f2e,#a06020)}
:is(.wk,.am-key-white).hl-5{background:linear-gradient(180deg,#d9f2ea,#bfe6d8)}
:is(.bk,.am-key-black).hl-5{background:linear-gradient(180deg,#1a8a6e,#126650)}
:is(.wk,.am-key-white).hl-7{background:linear-gradient(180deg,#dbe8fb,#bcd3f6)}
:is(.bk,.am-key-black).hl-7{background:linear-gradient(180deg,#2f6fc4,#22549a)}
:is(.wk,.am-key-white).hl-9{background:linear-gradient(180deg,#fbe0ec,#f5c4da)}
:is(.bk,.am-key-black).hl-9{background:linear-gradient(180deg,#c2457a,#9a3460)}
:is(.wk,.am-key-white):is(.hl-r,.hl-root){background:linear-gradient(180deg,#e8e2fb,#d5ccf8)}
:is(.bk,.am-key-black):is(.hl-r,.hl-root){background:linear-gradient(180deg,#6b52d6,#4d38b8)}