/* Reset básico y fuente global */
*{font-family:'Nunito',sans-serif;box-sizing:border-box;margin:0;padding:0}
body{background:#1e2433}

/* --- Animaciones --- */
/* fadeIn: entrada suave desde abajo, la uso en casi todas las pantallas */
@keyframes fadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
/* shakeX: vibración horizontal cuando fallas un ejercicio */
@keyframes shakeX{0%,100%{transform:translateX(0)}20%{transform:translateX(-10px)}40%{transform:translateX(10px)}60%{transform:translateX(-10px)}80%{transform:translateX(10px)}}
/* bounceIn: entrada con rebote, la uso en la pantalla de completar lección */
@keyframes bounceIn{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.1)}100%{transform:scale(1);opacity:1}}
/* popIn: aparición rápida, la uso en las fichas al ordenar versículos */
@keyframes popIn{0%{transform:scale(0)}60%{transform:scale(1.15)}100%{transform:scale(1)}}
/* confettiFall: caída del confetti al completar una lección */
@keyframes confettiFall{0%{transform:translateY(-10px) rotate(0deg);opacity:1}100%{transform:translateY(100vh) rotate(720deg);opacity:0}}
/* floatBounce: flotación suave del león en el home */
@keyframes floatBounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

.anim-fadeIn{animation:fadeIn .4s ease forwards}
.anim-shake{animation:shakeX .4s ease}
.anim-bounce{animation:bounceIn .5s ease forwards}
.anim-pop{animation:popIn .3s ease forwards}
.anim-float{animation:floatBounce 2s ease-in-out infinite}
.confetti-piece{position:fixed;top:-10px;width:10px;height:10px;border-radius:2px;animation:confettiFall 3s ease forwards;z-index:9999}

/* --- Botones 3D ---
   El efecto 3D se consigue con border-bottom grueso que simula sombra
   Al hacer clic (active) se mueve 4px hacia abajo y desaparece el border */
.btn-3d{position:relative;border-radius:16px;padding:12px 16px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;transition:all .15s;display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;border:none;width:100%;font-size:14px}
.btn-3d:active{transform:translateY(4px);border-bottom-width:0!important}
.btn-3d:disabled{opacity:.5;cursor:not-allowed}

/* Colores de botones — rojo principal, azul secundario, outline adaptado al modo oscuro */
.btn-red{background:#e63946;color:#fff;border-bottom:4px solid #b21e28}
.btn-red:hover{background:#c1121f}
.btn-blue{background:#457b9d;color:#fff;border-bottom:4px solid #2d6a8f}
.btn-blue:hover{background:#1d5b7a}
.btn-outline{background:#2a3244;color:#e63946;border:2px solid #3a4560;border-bottom:4px solid #3a4560}
.btn-outline:hover{background:#313d55}

/* --- Fichas de palabras ---
   Adaptadas al modo oscuro — fondo oscuro, texto claro */
.word-tile{display:inline-block;padding:6px 14px;border-radius:12px;border:2px solid #3a4560;border-bottom:4px solid #3a4560;font-weight:700;font-size:13px;background:#2a3244;color:#e8eaf0;cursor:pointer;transition:all .15s;user-select:none}
.word-tile:hover{background:#313d55}
.word-tile:active{transform:translateY(2px);border-bottom-width:2px}
.word-tile.used{background:#1e2433;color:transparent;border-color:#2a3244;border-bottom-width:2px;transform:translateY(2px);cursor:default}
.word-tile.placed{background:#3a2a44;border-color:#e63946;color:#ff8090;cursor:pointer}
.word-tile.correct{background:#1a3a2a;border-color:#58cc02;color:#7aef40}
.word-tile.wrong{background:#3a1a1a;border-color:#ff4b4b;color:#ff8080}

/* --- Barra de progreso ---
   Fondo oscuro, relleno rojo */
.progress-bar{width:100%;height:16px;background:#2a3244;border-radius:999px;overflow:hidden}
.progress-fill{height:100%;background:#e63946;border-radius:999px;transition:width .4s ease;position:relative}
.progress-fill::after{content:'';position:absolute;top:4px;left:8px;right:8px;height:4px;background:rgba(255,255,255,.15);border-radius:999px}

/* --- Nodos del mapa ---
   Tres estados: activo (rojo), completado (dorado), bloqueado (gris oscuro) */
.node{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s;cursor:pointer}
.node:active{transform:translateY(4px);border-bottom-width:0!important}
.node-active{background:#e63946;border-bottom:6px solid #b21e28;color:#fff;box-shadow:0 4px 16px rgba(230,57,70,.4)}
.node-active:hover{transform:scale(1.05)}
.node-locked{background:#2a3244;border-bottom:6px solid #1e2433;color:#4a5570;cursor:not-allowed}
.node-locked:active{transform:none;border-bottom-width:6px!important}
.node-done{background:#ffc800;border-bottom:6px solid #c69c00;color:#fff;box-shadow:0 4px 16px rgba(255,200,0,.3)}
.node-done:hover{transform:scale(1.05)}

/* --- Huecos del ejercicio de completar (cloze) ---
   Adaptados al modo oscuro */
.blank-slot{display:inline-block;min-width:70px;padding:2px 8px;margin:0 2px;border-radius:8px;border:2px dashed #3a4560;font-weight:700;font-size:13px;text-align:center;cursor:pointer;transition:all .15s;background:#2a3244;color:transparent;vertical-align:middle;line-height:1.6}
.blank-slot.filled{border-style:solid;border-color:#e63946;background:#3a2a44;color:#ff8090}
.blank-slot.correct{border-color:#58cc02;background:#1a3a2a;color:#7aef40}
.blank-slot.wrong{border-color:#ff4b4b;background:#3a1a1a;color:#ff8080}

/* Desarrollado por Boanerg3s */