/* eLang Learning — estilos (mobile-first) */
:root {
  --cyan: #00AEEF;
  --cyan-osc: #0090C8;
  --oro: #BCA374;
  --oro-osc: #9C8457;
  --fondo: #F6F5EF;
  --blanco: #FFFFFF;
  --texto: #222222;
  --texto2: #6B6A64;
  --linea: #E7E4D8;
  --azul-pastel: #E3F2FD;
  --azul-txt: #1565A8;
  --menta: #E8F5E9;
  --menta-txt: #2E7D32;
  --lila: #F3E8FF;
  --lila-txt: #7A3FC4;
  --rojo: #D9534F;
  --rojo-suave: #FDECEB;
  --ambar: #FFF4D6;
  --ambar-txt: #8A6100;
  --radio: 16px;
  --sombra: 0 1px 2px rgba(60, 50, 20, .06), 0 6px 20px rgba(60, 50, 20, .05);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Nunito', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--texto);
  background: var(--fondo);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; color: var(--texto); font-weight: 800; text-wrap: balance; }
h1 { font-size: 1.55rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1.02rem; }
p { margin: 0 0 .9em; }
a { color: var(--cyan-osc); text-decoration: none; }
a:hover { text-decoration: underline; }
small { font-size: .82rem; }
code { background: #EFEDE3; padding: 2px 6px; border-radius: 6px; font-size: .88em; word-break: break-all; }
[hidden] { display: none !important; }
.gris { color: var(--texto2); }
.centro { text-align: center; }
.nota { color: var(--texto2); font-size: .88rem; }
.vacio { color: var(--texto2); text-align: center; padding: 14px 6px; margin: 0; }
.ico { width: 22px; height: 22px; flex: none; }

/* ---------- Barra superior ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 14px;
  padding: 10px 16px; padding-top: calc(10px + env(safe-area-inset-top));
  background: rgba(246, 245, 239, .94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--linea);
}
.marca { font-weight: 900; font-size: 1.25rem; color: var(--texto); letter-spacing: -.3px; white-space: nowrap; }
.marca:hover { text-decoration: none; }
.marca-e { color: var(--cyan); }
.marca small { color: var(--oro); font-weight: 700; margin-left: 5px; font-size: .78rem; text-transform: uppercase; letter-spacing: 1px; }
.marca-grande { display: block; text-align: center; font-size: 1.9rem; margin-bottom: 20px; }
.nav-top { display: none; gap: 4px; margin-left: 12px; }
.nav-top a { padding: 8px 14px; border-radius: 999px; color: var(--texto2); font-weight: 700; font-size: .95rem; }
.nav-top a:hover { background: #ECEADF; text-decoration: none; }
.nav-top a.on { background: var(--texto); color: #fff; }
.topbar-der { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.mi-avatar { display: flex; }

.avatar { border-radius: 50%; object-fit: cover; flex: none; display: inline-flex; background: #ddd; }
.avatar-ini { align-items: center; justify-content: center; background: var(--oro); color: #fff; font-weight: 800; }

/* ---------- Campana ---------- */
.campana-wrap { position: relative; }
.campana {
  position: relative; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--linea); background: var(--blanco); color: var(--texto);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
}
.campana .badge {
  position: absolute; top: -4px; right: -4px; min-width: 20px; height: 20px; padding: 0 5px;
  background: var(--rojo); color: #fff; border-radius: 999px; font-size: .72rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center; border: 2px solid var(--fondo);
}
.campana.sacudir { animation: sacudir .7s; }
@keyframes sacudir { 20% { transform: rotate(16deg); } 40% { transform: rotate(-14deg); } 60% { transform: rotate(9deg); } 80% { transform: rotate(-6deg); } }
.panel-notif {
  position: fixed; left: 10px; right: 10px; top: calc(64px + env(safe-area-inset-top));
  background: var(--blanco); border-radius: var(--radio); box-shadow: 0 12px 40px rgba(0, 0, 0, .18);
  border: 1px solid var(--linea); overflow: hidden; z-index: 40; animation: bajar .18s ease-out;
}
@keyframes bajar { from { opacity: 0; transform: translateY(-8px); } }
.panel-notif-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--linea); }
.lista-notif { max-height: 60vh; overflow-y: auto; }
.notif { display: block; padding: 12px 16px; border-bottom: 1px solid #F1EFE6; color: var(--texto); }
.notif:hover { background: #FAF9F4; text-decoration: none; }
.notif.nueva { background: var(--azul-pastel); }
.notif strong { display: block; font-size: .95rem; }
.notif span { display: block; font-size: .86rem; color: var(--texto2); white-space: pre-line; }
.notif time { font-size: .75rem; color: var(--texto2); }

/* ---------- Estructura ---------- */
.contenido { max-width: 860px; margin: 0 auto; padding: 18px 14px calc(96px + env(safe-area-inset-bottom)); animation: aparecer .25s ease-out; }
@keyframes aparecer { from { opacity: 0; transform: translateY(6px); } }
.titulo { margin: 6px 0 16px; }
.titulo-sec { margin: 26px 4px 10px; font-size: 1.1rem; }
.titulo-fila { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.titulo-fila h1, .titulo-fila h2, .titulo-fila h3 { margin: 0; }
.sub { color: var(--texto2); }
.volver { display: inline-block; margin-bottom: 10px; font-weight: 700; color: var(--texto2); }
.resaltado { background: var(--azul-pastel); color: var(--azul-txt); padding: 2px 10px; border-radius: 8px; }

.card {
  background: var(--blanco); border-radius: var(--radio); padding: 18px;
  box-shadow: var(--sombra); margin-bottom: 14px; border: 1px solid #EFEDE2;
}
.card-oro { border-top: 4px solid var(--oro); }
a.card { display: block; color: inherit; transition: transform .15s, box-shadow .15s; }
a.card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 2px 4px rgba(60, 50, 20, .08), 0 12px 28px rgba(60, 50, 20, .09); }

/* ---------- Navegación inferior (app) ---------- */
.nav-bottom {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  display: flex; background: var(--blanco); border-top: 1px solid var(--linea);
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-bottom a {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 9px 2px 8px; color: var(--texto2); font-size: .7rem; font-weight: 700; min-width: 0;
}
.nav-bottom a:hover { text-decoration: none; }
.nav-bottom a.on { color: var(--cyan-osc); }
.nav-bottom a span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }

/* ---------- Formularios ---------- */
label { display: block; font-weight: 700; font-size: .92rem; margin-bottom: 14px; }
label small { font-weight: 600; color: var(--texto2); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], input[type=search], select, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px;
  font: inherit; font-weight: 600; color: var(--texto);
  background: #FCFBF8; border: 2px solid var(--linea); border-radius: 12px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(0, 174, 239, .15); background: #fff; }
input:disabled { color: var(--texto2); background: #F1EFE6; }
input[type=file] { display: block; margin-top: 6px; font: inherit; font-size: .9rem; max-width: 100%; }
textarea { resize: vertical; min-height: 80px; }
.form-linea { display: flex; gap: 10px; flex-wrap: wrap; align-items: stretch; }
.form-linea input, .form-linea select { flex: 1 1 200px; margin-top: 0; }
.cols-3 { display: grid; grid-template-columns: 1fr; gap: 0 12px; }
.check { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; margin: 0; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--cyan); }
.buscador { margin-bottom: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border: 0; border-radius: 14px; cursor: pointer;
  font: inherit; font-weight: 800; font-size: .95rem; letter-spacing: .2px; text-align: center;
  transition: transform .08s, filter .15s, box-shadow .08s; text-decoration: none !important;
}
.btn:active { transform: translateY(2px); }
.btn:focus-visible, .link:focus-visible, a:focus-visible, .opcion:focus-visible, .chip:focus-visible { outline: 3px solid rgba(0, 174, 239, .5); outline-offset: 2px; }
.btn[disabled] { background: #E5E3D8 !important; color: #A9A69A !important; box-shadow: none !important; cursor: not-allowed; }
.btn-primario { background: var(--cyan); color: #fff; box-shadow: 0 4px 0 var(--cyan-osc); }
.btn-primario:hover { filter: brightness(1.05); }
.btn-primario:active { box-shadow: 0 2px 0 var(--cyan-osc); }
.btn-suave { background: #EFEDE3; color: var(--texto); }
.btn-suave:hover { background: #E6E3D6; }
.btn-peligro { background: var(--rojo); color: #fff; box-shadow: 0 4px 0 #B63E3A; }
.btn-peligro-suave { background: var(--rojo-suave); color: var(--rojo); }
.btn-peligro-suave:hover { background: #FBDAD8; }
.btn-ok { background: #43A047; color: #fff; box-shadow: 0 4px 0 #2E7D32; }
.btn-bloque { display: flex; width: 100%; }
.btn-grande { padding: 15px 22px; font-size: 1.02rem; text-transform: uppercase; letter-spacing: .6px; }
.btn-chico { padding: 8px 12px; font-size: .82rem; border-radius: 10px; }
.link { background: none; border: 0; padding: 0; font: inherit; font-weight: 700; color: var(--cyan-osc); cursor: pointer; }
.link.peligro { color: var(--rojo); }
.fila-botones { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.fila-botones form { margin: 0; }

/* ---------- Etiquetas y cajas de estado ---------- */
.tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .76rem; font-weight: 800; background: #EFEDE3; color: var(--texto2); white-space: nowrap; }
.tag-info { background: var(--azul-pastel); color: var(--azul-txt); }
.tag-ok { background: var(--menta); color: var(--menta-txt); }
.tag-personal { background: var(--lila); color: var(--lila-txt); }
.tag-warn { background: var(--ambar); color: var(--ambar-txt); }
.tag-peligro { background: var(--rojo-suave); color: var(--rojo); }
.lt-tags { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0; }

.alerta { padding: 12px 16px; border-radius: 12px; margin-bottom: 14px; font-weight: 700; font-size: .93rem; }
.alerta-ok { background: var(--menta); color: var(--menta-txt); }
.alerta-error { background: var(--rojo-suave); color: #B23B37; }
.alerta-info { background: var(--azul-pastel); color: var(--azul-txt); }
.caja-ok, .caja-info, .caja-warn { padding: 10px 14px; border-radius: 12px; font-size: .9rem; margin: 10px 0; overflow-wrap: anywhere; }
.caja-ok { background: var(--menta); color: var(--menta-txt); }
.caja-info { background: var(--azul-pastel); color: var(--azul-txt); }
.caja-warn { background: var(--ambar); color: var(--ambar-txt); }
.recurso { display: flex; align-items: center; gap: 12px; background: var(--azul-pastel); color: var(--azul-txt); padding: 12px 14px; border-radius: 12px; margin: 12px 0; overflow-wrap: anywhere; }
.recurso > span { font-size: 1.4rem; }
.recurso strong, .recurso small { display: block; }
.recurso .check { margin-left: auto; color: var(--rojo); }
a.recurso:hover { text-decoration: none; filter: brightness(.97); }

/* ---------- Progreso ---------- */
.progreso { height: 14px; background: #E9E6DA; border-radius: 999px; overflow: hidden; flex: 1; }
.progreso-barra { height: 100%; width: 0; background: linear-gradient(90deg, var(--cyan), #4FCBF5); border-radius: 999px; transition: width .45s cubic-bezier(.3, 1.3, .5, 1); min-width: 0; }
.progreso-mini { height: 8px; margin: 8px 0 4px; }

/* ---------- Páginas públicas ---------- */
.auth { max-width: 440px; margin: 0 auto; padding: 36px 16px 48px; animation: aparecer .3s ease-out; }
.auth-ancho { max-width: 560px; }
.auth .card { padding: 24px; }
.planes { display: grid; gap: 10px; margin-bottom: 18px; }
.plan { margin: 0; cursor: pointer; }
.plan input { position: absolute; opacity: 0; }
.plan-caja { display: block; padding: 14px 16px; border: 2px solid var(--linea); border-radius: 14px; transition: border-color .15s, background .15s; }
.plan input:checked + .plan-caja { border-color: var(--cyan); background: #F1FBFF; box-shadow: 0 0 0 4px rgba(0, 174, 239, .12); }
.plan input:focus-visible + .plan-caja { outline: 3px solid rgba(0, 174, 239, .5); }
.plan-precio { display: block; font-size: 1.35rem; font-weight: 900; color: var(--texto); margin: 2px 0; }
.plan-precio small { font-size: .85rem; color: var(--texto2); font-weight: 700; }
.plan-desc { display: block; font-weight: 600; color: var(--texto2); font-size: .88rem; }

/* ---------- Alumno ---------- */
.hero { display: grid; gap: 14px; }
.hero h1 { margin: 0 0 6px; font-size: 1.7rem; }
.hero-hola { margin: 0; color: var(--oro-osc); font-weight: 800; }
.hero-maestro { display: flex; align-items: center; gap: 10px; }
.hero-maestro small, .hero-maestro strong { display: block; line-height: 1.25; }
.hero-maestro small { color: var(--texto2); }
.hero-progreso small { color: var(--texto2); font-weight: 700; display: block; margin-top: 6px; }

.lista-tareas { list-style: none; margin: -6px 0; padding: 0; }
.lista-tareas li + li { border-top: 1px solid #F1EFE6; }
.lista-tareas a { display: flex; align-items: center; gap: 12px; padding: 12px 2px; color: inherit; }
.lista-tareas a:hover { text-decoration: none; }
.lista-tareas a:hover strong { color: var(--cyan-osc); }
.lt-info { flex: 1; min-width: 0; }
.lt-info strong, .lt-info small { display: block; }
.lt-info small { color: var(--texto2); }
.lt-flecha { font-size: 1.6rem; color: #C9C5B6; }
.lt-calif { width: 44px; height: 44px; border-radius: 50%; background: var(--menta); color: var(--menta-txt); font-weight: 900; display: flex; align-items: center; justify-content: center; flex: none; }

.grid-clases, .grid-maestros { display: grid; gap: 14px; grid-template-columns: 1fr; }
.grid-clases .card, .grid-maestros .card { margin: 0; }
.clase-card h3 { margin: 8px 0 4px; }
.clase-card small { color: var(--texto2); }
.clase-card-tags { display: flex; gap: 6px; flex-wrap: wrap; min-height: 4px; }

.clase h1 { margin-top: 8px; }
.video { position: relative; aspect-ratio: 16 / 9; margin: 16px 0; border-radius: 14px; overflow: hidden; background: #111; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.teoria { margin-top: 14px; font-size: 1.02rem; line-height: 1.7; overflow-wrap: anywhere; }

.tarea-card { display: flex; gap: 14px; align-items: flex-start; flex-wrap: wrap; scroll-margin-top: 80px; }
.tarea-card:target { box-shadow: 0 0 0 3px rgba(0, 174, 239, .35), var(--sombra); }
.tarea-card.bloqueada { opacity: .6; }
.tarea-num { width: 44px; height: 44px; border-radius: 50%; background: var(--oro); color: #fff; font-weight: 900; display: flex; align-items: center; justify-content: center; flex: none; }
.tarea-info { flex: 1 1 200px; min-width: 0; }
.tarea-info h3 { margin: 2px 0 0; }
.tarea-accion { margin-left: auto; align-self: center; }
.hecho { color: var(--menta-txt); font-weight: 800; }
.resultado-tarea { margin: 6px 0 0; font-size: .92rem; }
.comentario { background: #FAF9F4; border-left: 3px solid var(--oro); padding: 8px 12px; border-radius: 0 10px 10px 0; font-size: .92rem; margin: 8px 0 0; }

.bienvenida { text-align: center; margin: 10px 0 20px; }
.bienvenida .titulo, .bienvenida .sub { text-align: left; }
.bienvenida-emoji { font-size: 3rem; animation: saludo 1.4s ease-in-out; transform-origin: 70% 80%; display: inline-block; }
@keyframes saludo { 20%, 60% { transform: rotate(18deg); } 40%, 80% { transform: rotate(-10deg); } }
.maestro { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.maestro h2 { margin: 10px 0 0; }
.maestro-bio { color: var(--texto2); font-size: .92rem; margin: 4px 0; }
.maestro-datos { font-size: .8rem; font-weight: 800; color: var(--oro-osc); margin-bottom: 10px; }
.maestro form { width: 100%; margin-top: auto; }
.maestro-actual { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0, 174, 239, .2), var(--sombra); }

/* ---------- Maestro / Admin ---------- */
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 16px; }
.stat { background: var(--blanco); border-radius: var(--radio); padding: 14px; border: 1px solid #EFEDE2; box-shadow: var(--sombra); min-width: 0; }
.stat strong { display: block; font-size: 1.45rem; font-weight: 900; line-height: 1.15; overflow-wrap: anywhere; }
.stat span { font-size: .8rem; color: var(--texto2); font-weight: 700; }
.stat-acento { border-top: 4px solid var(--cyan); }
.clase-fila { display: flex; gap: 14px; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.clase-fila-info { flex: 1 1 240px; min-width: 0; }
.clase-fila-info h3 { margin: 4px 0 2px; }
.alumno-fila, .usuario-fila { display: flex !important; gap: 14px; align-items: center; flex-wrap: wrap; }
.alumno-fila-info { flex: 1 1 200px; min-width: 0; }
.alumno-fila-info strong, .alumno-fila-info small { display: block; overflow-wrap: anywhere; }
.alumno-cab { display: flex; gap: 16px; align-items: center; }
.alumno-cab h1 { margin: 0; font-size: 1.3rem; }
.lista-miembros { list-style: none; padding: 0; margin: 8px 0 14px; }
.lista-miembros li { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid #F1EFE6; }
.lista-miembros li > span { flex: 1; font-weight: 700; min-width: 0; }
.lista-miembros form { margin: 0; }
.reporte-tarea { border-top: 1px solid var(--linea); padding: 14px 0 6px; scroll-margin-top: 80px; }
.mini-stats { display: flex; gap: 6px 18px; flex-wrap: wrap; font-size: .86rem; color: var(--texto2); margin: 6px 0; }
.mini-stats strong { color: var(--texto); }
.form-revision { background: #FAF9F4; padding: 14px; border-radius: 12px; margin-top: 10px; }
details summary { cursor: pointer; font-weight: 700; color: var(--cyan-osc); padding: 4px 0; }
details.card summary { color: var(--texto); }
details.card[open] summary { margin-bottom: 14px; }
.tabla-wrap { overflow-x: auto; }
.tabla { width: 100%; border-collapse: collapse; font-size: .88rem; margin-top: 8px; }
.tabla th { text-align: left; color: var(--texto2); font-size: .76rem; text-transform: uppercase; letter-spacing: .5px; padding: 6px 8px; }
.tabla td { padding: 8px; border-top: 1px solid #F1EFE6; vertical-align: top; }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; overflow-x: auto; }
.tabs a { padding: 9px 16px; border-radius: 999px; background: #ECEADF; color: var(--texto2); font-weight: 800; font-size: .9rem; white-space: nowrap; }
.tabs a.on { background: var(--texto); color: #fff; }
.tabs a:hover { text-decoration: none; }
.barra-fila { display: flex; align-items: center; gap: 12px; padding: 6px 0; }
.barra-fila > span { width: 92px; font-weight: 800; font-size: .88rem; }
.barra-fila > strong { width: 30px; text-align: right; }
.lista-simple { padding-left: 20px; margin: 0 0 12px; }
.datos { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0 0 16px; }
.datos dt { color: var(--texto2); font-weight: 700; }
.datos dd { margin: 0; font-weight: 700; }
.perfil-foto { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.perfil-foto label { margin: 0; }

/* Editor de clase */
.segmento { display: flex; background: #EFEDE3; border-radius: 12px; padding: 4px; margin-bottom: 14px; }
.segmento label { flex: 1; margin: 0; text-align: center; cursor: pointer; }
.segmento input { position: absolute; opacity: 0; }
.segmento span { display: block; padding: 9px 6px; border-radius: 9px; font-size: .86rem; font-weight: 800; color: var(--texto2); }
.segmento input:checked + span { background: #fff; color: var(--texto); box-shadow: 0 1px 4px rgba(0, 0, 0, .1); }
.segmento input:focus-visible + span { outline: 3px solid rgba(0, 174, 239, .5); }
.ed-tarea { border: 2px solid var(--linea); border-radius: 14px; padding: 14px; margin-bottom: 14px; background: #FDFCF9; }
.ed-tarea-cab { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.ed-tarea-cab strong { color: var(--oro-osc); text-transform: uppercase; font-size: .8rem; letter-spacing: 1px; }
.ed-pregunta { background: #fff; border: 1px solid var(--linea); border-radius: 12px; padding: 12px; margin-bottom: 10px; }
.ed-pregunta-cab { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.ed-pregunta-cab select { flex: 1; margin: 0; padding: 8px 10px; font-size: .88rem; }
.ed-pregunta-cab b { width: 26px; height: 26px; border-radius: 50%; background: var(--azul-pastel); color: var(--azul-txt); display: flex; align-items: center; justify-content: center; font-size: .8rem; flex: none; }
.ed-opcion { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.ed-opcion input[type=text] { margin: 0; padding: 9px 12px; }
.ed-opcion input[type=radio] { width: 20px; height: 20px; accent-color: #43A047; flex: none; }
.ed-mini { background: none; border: 0; cursor: pointer; font: inherit; font-weight: 800; font-size: .84rem; color: var(--cyan-osc); padding: 6px 4px; }
.ed-mini.peligro { color: var(--rojo); }
.ed-ayuda { font-size: .8rem; color: var(--texto2); margin: 6px 0 0; font-weight: 600; }
.barra-guardar {
  position: sticky; bottom: calc(66px + env(safe-area-inset-bottom)); z-index: 20;
  display: flex; gap: 10px; padding: 12px; background: rgba(246, 245, 239, .95); backdrop-filter: blur(6px);
  border-radius: 18px; border: 1px solid var(--linea);
}
.barra-guardar .btn { flex: 1; padding: 14px 8px; font-size: .86rem; letter-spacing: .3px; }

/* ---------- Reproductor (tarea y examen) ---------- */
body.jugador { background: var(--blanco); }
.jugador-wrap { max-width: 640px; margin: 0 auto; min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
.jugador-top { display: flex; align-items: center; gap: 14px; padding: 16px; padding-top: calc(16px + env(safe-area-inset-top)); }
.cerrar { font-size: 1.3rem; color: #B5B2A4; font-weight: 800; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.cerrar:hover { background: #F1EFE6; text-decoration: none; color: var(--texto); }
.progreso-txt { font-weight: 800; color: var(--texto2); font-size: .85rem; min-width: 38px; text-align: right; }
.jugador-cuerpo { flex: 1; padding: 10px 20px 24px; }
.jugador-cuerpo.entra { animation: entra .32s cubic-bezier(.2, .9, .3, 1); }
@keyframes entra { from { opacity: 0; transform: translateX(28px); } }
.pista-tipo { color: var(--oro-osc); font-weight: 800; text-transform: uppercase; letter-spacing: 1px; font-size: .78rem; margin-bottom: 8px; }
.enunciado { font-size: 1.35rem; margin-bottom: 22px; overflow-wrap: anywhere; white-space: pre-line; }
.instrucciones { background: #FAF9F4; border-radius: 12px; padding: 10px 14px; font-size: .92rem; color: var(--texto2); margin-bottom: 16px; white-space: pre-line; }
.opciones { display: grid; gap: 12px; }
.opcion {
  display: block; width: 100%; text-align: left; padding: 15px 18px; font: inherit; font-weight: 700; font-size: 1.02rem;
  background: #fff; color: var(--texto); border: 2px solid var(--linea); border-bottom-width: 4px; border-radius: 14px; cursor: pointer;
  transition: border-color .12s, background .12s, transform .08s;
}
.opcion:hover { background: #FAF9F4; }
.opcion:active { transform: translateY(2px); border-bottom-width: 2px; margin-bottom: 2px; }
.opcion.sel { border-color: var(--cyan); background: #EAF8FE; color: var(--cyan-osc); }
.opcion.bien { border-color: #43A047; background: var(--menta); color: var(--menta-txt); }
.opcion.mal { border-color: var(--rojo); background: var(--rojo-suave); color: #B23B37; animation: temblar .35s; }
.opcion[disabled] { cursor: default; }
@keyframes temblar { 25% { transform: translateX(-6px); } 50% { transform: translateX(6px); } 75% { transform: translateX(-3px); } }
.entrada-texto { font-size: 1.1rem !important; padding: 16px !important; }
.entrada-texto.mal { border-color: var(--rojo); animation: temblar .35s; }
.zona-orden { min-height: 62px; border-bottom: 2px solid var(--linea); border-top: 2px solid var(--linea); padding: 10px 0; margin-bottom: 22px; display: flex; flex-wrap: wrap; gap: 8px; align-content: flex-start; }
.zona-orden.mal { animation: temblar .35s; }
.banco { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.chip {
  padding: 10px 14px; font: inherit; font-weight: 700; background: #fff; color: var(--texto);
  border: 2px solid var(--linea); border-bottom-width: 4px; border-radius: 12px; cursor: pointer;
}
.chip.usado { background: #E9E6DA; color: transparent; border-color: #E9E6DA; pointer-events: none; }
.pista { background: var(--ambar); color: var(--ambar-txt); padding: 10px 14px; border-radius: 12px; font-weight: 700; font-size: .9rem; margin-top: 16px; }

.jugador-pie { position: sticky; bottom: 0; background: var(--blanco); border-top: 2px solid #F1EFE6; padding: 14px 20px calc(18px + env(safe-area-inset-bottom)); }
.feedback { padding: 2px 0 12px; font-weight: 800; animation: subir .22s ease-out; }
@keyframes subir { from { opacity: 0; transform: translateY(12px); } }
.feedback strong { display: block; font-size: 1.15rem; }
.feedback span { font-weight: 700; font-size: .92rem; }
.jugador-pie.es-bien { background: var(--menta); border-color: #CFE8D1; color: var(--menta-txt); }
.jugador-pie.es-mal { background: var(--rojo-suave); border-color: #F6CFCC; color: #B23B37; }

.intro { text-align: center; padding-top: 6vh; }
.intro-emoji { font-size: 4rem; animation: rebote .6s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes rebote { from { transform: scale(.3); opacity: 0; } }
.intro-lista { list-style: none; padding: 0; margin: 18px auto; max-width: 320px; text-align: left; }
.intro-lista li { padding: 10px 14px; background: #FAF9F4; border-radius: 12px; margin-bottom: 8px; font-weight: 700; }
.intro-lista li::before { content: '✓  '; color: var(--cyan); font-weight: 900; }
.nivel-grande { font-size: 4.2rem; font-weight: 900; color: var(--cyan); line-height: 1; margin: 6px 0 8px; }
.resumen-final { display: flex; gap: 10px; justify-content: center; margin: 20px 0; flex-wrap: wrap; }
.resumen-final div { border: 2px solid var(--linea); border-radius: 14px; padding: 10px 18px; min-width: 104px; }
.resumen-final strong { display: block; font-size: 1.5rem; font-weight: 900; }
.resumen-final small { color: var(--texto2); font-weight: 800; text-transform: uppercase; font-size: .7rem; letter-spacing: .6px; }
.subir-archivo { border: 2px dashed #C9C5B6; border-radius: 14px; padding: 18px; margin-top: 16px; text-align: left; }

/* ---------- Modal y toasts ---------- */
.modal-fondo { position: fixed; inset: 0; background: rgba(34, 34, 34, .5); z-index: 60; display: flex; align-items: flex-end; justify-content: center; animation: fundir .15s; }
@keyframes fundir { from { opacity: 0; } }
.modal { background: #fff; width: 100%; max-width: 440px; border-radius: 22px 22px 0 0; padding: 24px 22px calc(22px + env(safe-area-inset-bottom)); animation: modalSube .22s cubic-bezier(.2, .9, .3, 1); }
@keyframes modalSube { from { transform: translateY(40px); opacity: 0; } }
.modal p { font-weight: 700; font-size: 1.02rem; }
.modal .fila-botones { justify-content: flex-end; }
.toasts { position: fixed; left: 0; right: 0; bottom: calc(84px + env(safe-area-inset-bottom)); display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 70; pointer-events: none; padding: 0 14px; }
.toast { background: var(--texto); color: #fff; padding: 12px 18px; border-radius: 14px; font-weight: 700; font-size: .92rem; box-shadow: 0 8px 24px rgba(0, 0, 0, .25); animation: subir .2s ease-out; max-width: 100%; }
.toast.error { background: var(--rojo); }

/* ---------- Pantallas grandes ---------- */
@media (min-width: 760px) {
  h1 { font-size: 1.8rem; }
  .nav-top { display: flex; }
  .nav-bottom { display: none; }
  .contenido { padding: 28px 20px 60px; }
  .panel-notif { position: absolute; left: auto; right: 0; top: 50px; width: 380px; }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .grid-clases { grid-template-columns: repeat(2, 1fr); }
  .grid-maestros { grid-template-columns: repeat(3, 1fr); }
  .cols-3 { grid-template-columns: 2fr 1fr 1fr; }
  .hero { grid-template-columns: 1fr auto; align-items: center; }
  .hero-progreso { grid-column: 1 / -1; }
  .barra-guardar { bottom: 14px; }
  .modal-fondo { align-items: center; }
  .modal { border-radius: 22px; }
  .toasts { bottom: 24px; }
  .planes { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}