@import "https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap";:root{--color-fondo:#eee;--color-fondo-secundario:#fff;--color-borde:#393e4633;--color-texto-principal:#222831;--color-texto-secundario:#393e46;--acento-primario:#00adb5;--acento-secundario:#00adb5;--feedback-correcto:#00adb5;--feedback-incorrecto:#dc2626;--feedback-pista:#f59e0b;--sombra-card:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--sombra-hover:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--sombra-titulo:none}[data-bs-theme=dark]{--color-fondo:#222831;--color-fondo-secundario:#393e46;--color-borde:#eeeeee26;--color-texto-principal:#eee;--color-texto-secundario:#b4bac2;--acento-primario:#00adb5;--acento-secundario:#00adb5;--feedback-correcto:#00adb5;--feedback-incorrecto:#f87171;--feedback-pista:#fbbf24;--sombra-card:0 4px 6px -1px #0000004d;--sombra-hover:0 10px 15px -3px #0006;--sombra-titulo:0 0 20px #00adb526}body.light-mode{--color-fondo:#eee;--color-fondo-secundario:#fff;--color-borde:#393e4633;--color-texto-principal:#222831;--color-texto-secundario:#393e46;--acento-primario:#00adb5;--acento-secundario:#00adb5;--feedback-correcto:#00adb5;--feedback-incorrecto:#dc2626;--feedback-pista:#f59e0b;--sombra-titulo:none}body{background-color:var(--color-fondo);color:var(--color-texto-principal);font-family:Poppins,sans-serif;transition:background-color .3s,color .3s;overflow-x:hidden}.no-transition *{transition:none!important}.navbar{background-color:var(--color-fondo-secundario);border-bottom:1px solid var(--color-borde);transition:background-color .3s,border-color .3s}.navbar-brand,.nav-link{color:var(--color-texto-principal)!important}.nav-link:hover{color:var(--acento-primario)!important}.nav-link.active{font-weight:700;color:var(--acento-secundario)!important}.brand-logo-box{background-color:var(--color-fondo-secundario);border:1px solid var(--color-borde);border-radius:8px;justify-content:center;align-items:center;padding:5px;transition:transform .3s,background-color .3s;display:flex}body:not([data-bs-theme=dark]) .brand-logo-box{background-color:var(--color-texto-principal);border-color:#0000}[data-bs-theme=dark] .brand-logo-box{border-color:var(--color-borde);background-color:#ffffff1a}.navbar-brand:hover .brand-logo-box{border-color:var(--acento-primario);transform:scale(1.1)rotate(-5deg)}body:not([data-bs-theme=dark]) .navbar-brand:hover .brand-logo-box{background-color:var(--acento-primario)}.card.shadow-lg{background-color:var(--color-fondo-secundario);border:1px solid var(--color-borde)!important;box-shadow:var(--sombra-card)!important}.form-control{background-color:var(--color-fondo);border:1px solid var(--color-borde);color:var(--color-texto-principal);border-radius:.5rem;padding:.75rem 1rem}.form-control:focus{background-color:var(--color-fondo-secundario);border-color:var(--acento-primario);box-shadow:0 0 0 4px #4f46e51a}.main-title{color:var(--color-texto-principal);font-size:2.8rem;font-weight:700}.text-muted{color:var(--color-texto-secundario)!important}.word-of-the-day-card{color:#fff;border:1px solid var(--color-borde);background-position:50%;background-size:cover;border-radius:1rem;flex-direction:column;justify-content:flex-end;min-height:300px;padding:2rem;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a}.word-of-the-day-card:before{content:"";z-index:1;background:linear-gradient(#11182733 0%,#111827e6 80%);position:absolute;inset:0}.word-of-the-day-card .content{z-index:2;position:relative}.word-of-the-day-card .tag{background-color:var(--acento-primario);color:var(--color-fondo);border-radius:20px;margin-bottom:.5rem;padding:.25rem .75rem;font-size:.8rem;font-weight:700;display:inline-block}.word-of-the-day-card h3{text-shadow:2px 2px 5px #00000080;margin:0;font-size:2.5rem}.word-of-the-day-card p{color:#cbd5e1;margin:0;font-size:1.2rem}.level-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;padding-top:2rem;display:grid}.level-card-link{text-decoration:none}.level-card{background:var(--color-fondo-secundario);border:1px solid var(--color-borde);text-align:center;z-index:1;border-radius:1rem;flex-direction:column;height:100%;padding:2.5rem 2rem;transition:transform .4s cubic-bezier(.175,.885,.32,1.275),box-shadow .4s,background-color .3s,border-color .3s;display:flex;position:relative;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a}.level-card-link:hover .level-card{border-color:var(--glow-color,var(--acento-primario));box-shadow:0 15px 30px -5px #0000004d, 0 0 20px -5px var(--glow-color,var(--acento-primario));transform:translateY(-10px)scale(1.02)}.card-icon{color:var(--glow-color);margin-bottom:1.5rem;font-size:3.5rem;transition:transform .4s cubic-bezier(.175,.885,.32,1.275),text-shadow .4s;display:block}.level-card-link:hover .card-icon{text-shadow:0 0 15px var(--glow-color);transform:scale(1.2)rotate(10deg)}.card-title{color:var(--color-texto-principal);margin-bottom:.5rem;font-size:1.8rem;font-weight:600}.card-description{color:var(--color-texto-secundario);flex-grow:1;font-size:1rem;line-height:1.5}.card-a1{--glow-color:#f59e0b}.card-a2{--glow-color:var(--acento-primario)}.card-b1{--glow-color:#6366f1}.card-b2{--glow-color:#3b82f6}.card-c1{--glow-color:var(--acento-secundario)}.level-header{text-align:center;margin-bottom:4rem;padding:2rem 0;position:relative}.level-header .level-badge{background:var(--glow-color,var(--acento-primario));background:linear-gradient(135deg, var(--glow-color,var(--acento-primario)), #111827);color:#fff;text-transform:uppercase;letter-spacing:3px;border:1px solid #ffffff1a;border-radius:12px;justify-content:center;align-items:center;margin-bottom:1.5rem;padding:.6rem 2rem;font-size:1.1rem;font-weight:700;transition:transform .3s,box-shadow .3s;display:inline-flex;box-shadow:0 4px 15px #0000004d}.level-header .level-badge:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0006}.level-header h1{background:linear-gradient(#fff 0%,#a1a1aa 100%);-webkit-text-fill-color:transparent;text-transform:uppercase;letter-spacing:-2px;filter:drop-shadow(0 4px 6px #00000080);-webkit-background-clip:text;background-clip:text;margin:0;font-size:4.5rem;font-weight:800}body.light-mode .level-header h1{background:linear-gradient(#1f2937 0%,#4b5563 100%);-webkit-text-fill-color:transparent;filter:drop-shadow(0 2px 4px #0000001a);-webkit-background-clip:text;background-clip:text}.accordion-item{background-color:var(--color-fondo-secundario);border:1px solid var(--color-borde);margin-bottom:1rem;border-radius:.75rem!important}.accordion-header .accordion-button{background-color:var(--color-fondo-secundario);color:var(--color-texto-principal);border-radius:.75rem;font-size:1.2rem;font-weight:600}.accordion-button:not(.collapsed){color:var(--acento-primario);box-shadow:none;background-color:var(--color-fondo-secundario)}.accordion-button:focus{box-shadow:none}.accordion-body{color:var(--color-texto-principal);font-size:1.1rem;line-height:1.7}.accordion-body h3,.accordion-body h5{color:var(--color-texto-principal);border-left:4px solid var(--glow-color,var(--acento-primario));margin-top:1.8rem;margin-bottom:1.2rem;padding-left:12px}.practice-game{background-color:var(--color-fondo);border:1px solid var(--color-borde);border-radius:.5rem;padding:1.5rem}.practice-game p,.practice-game h4,.practice-game h5{color:var(--color-texto-principal)}.practice-game .form-control{background-color:var(--color-borde);color:var(--color-texto-principal);border:1px solid var(--color-borde);font-size:1.1rem}.practice-game .btn{background-color:var(--glow-color,var(--acento-primario));color:var(--color-fondo);border:none;font-size:1.1rem;font-weight:700}body.light-mode .practice-game .btn{color:#fff}.feedback{text-align:center;margin-top:1rem;font-size:1.2rem;font-weight:700}.feedback-correct,.practice-game .feedback-correct{color:var(--feedback-correcto)!important}.feedback-incorrect,.practice-game .feedback-incorrect{color:var(--feedback-incorrecto)!important}.feedback-hint{color:var(--feedback-pista);font-size:1rem;font-style:italic}.demonstrative-lab,.animation-container{background-color:var(--color-fondo)}.animation-zone{border:2px dashed var(--color-borde)}.animation-zone:before{color:var(--color-texto-secundario)}.animated-object{background-color:var(--glow-color,var(--acento-secundario))}footer{background-color:var(--color-fondo-secundario);color:var(--color-texto-secundario);border-top:1px solid var(--color-borde)}@media (width<=991px){.main-title{font-size:2.2rem}.level-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.word-of-the-day-card{min-height:250px}.navbar-collapse{background-color:var(--color-fondo-secundario);z-index:1050;width:280px;padding:1.5rem;transition:left .3s ease-in-out,visibility .3s ease-in-out;position:fixed;top:0;left:-100%;overflow-y:auto;box-shadow:2px 0 15px #0000004d;height:100vh!important}.navbar-collapse.show{left:0}.navbar-collapse:before{content:"";z-index:-1;opacity:0;visibility:hidden;background-color:#00000080;width:calc(100vw - 280px);height:100vh;transition:opacity .3s ease-in-out;position:fixed;top:0;left:280px}.navbar-collapse.show:before{opacity:1;visibility:visible}.navbar-nav{flex-direction:column;width:100%;align-items:flex-start!important;margin:0!important}.nav-item{width:100%;margin-bottom:.5rem}.nav-link{border-radius:8px;width:100%;transition:background-color .2s,transform .2s;display:block;padding:.8rem 1rem!important}.nav-link:hover{background-color:#2dd4bf1a;transform:translate(5px)}.nav-item:nth-child(7){border-bottom:1px solid var(--color-borde);margin-bottom:1.5rem;padding-bottom:1rem}.nav-item .btn{border-radius:8px;width:100%;margin-bottom:.8rem;padding:.8rem;font-size:1rem;font-weight:600}.nav-item .btn-outline-primary{margin-right:0!important}.nav-item.dropdown .dropdown-menu{width:100%;box-shadow:none;background-color:#0000;border:none;margin-top:.5rem;padding-left:1rem;position:static!important;transform:none!important}.dropdown-item{border-radius:6px;margin-bottom:.3rem;padding:.7rem 1rem}.dropdown-item:hover{background-color:#2dd4bf1a}.nav-item:last-child{border-top:1px solid var(--color-borde);margin-top:auto;padding-top:1rem}#theme-toggle{border-radius:8px;width:100%;padding:.8rem}}@media (width<=768px){.level-header h1{font-size:2rem}.level-header{margin-bottom:2rem}.word-of-the-day-card h3{font-size:1.8rem}.word-of-the-day-card p{font-size:1rem}.level-card{padding:2rem 1.5rem}.card-icon{margin-bottom:1rem;font-size:3rem}.card-title{font-size:1.5rem}.navbar-brand{font-size:1.2rem}}@media (width<=576px){main.container{padding-left:1rem;padding-right:1rem;margin-top:2rem!important}.main-title,.level-header h1{font-size:1.8rem}.accordion-button{padding:.75rem 1rem;font-size:1rem}.accordion-body{padding:1rem;font-size:1rem}.practice-game{padding:1rem}.practice-game .btn{width:100%;margin-top:.5rem}.word-of-the-day-card{min-height:220px;padding:1.5rem}.word-of-the-day-card h3{font-size:1.5rem}.table thead{font-size:.9rem}.table td{padding:.5rem}}body:not([data-bs-theme=dark]) .btn-outline-light{background-color:#0000;color:#495057!important;border-color:#ced4da!important}body:not([data-bs-theme=dark]) .btn-outline-light:hover{color:#fff!important;background-color:#6c757d!important;border-color:#6c757d!important}body:not([data-bs-theme=dark]) .btn-outline-light.active,body:not([data-bs-theme=dark]) .btn-outline-light:active,body:not([data-bs-theme=dark]) .btn-outline-light.btn-success{color:#fff!important;background-color:#28a745!important;border-color:#28a745!important}body:not([data-bs-theme=dark]) .btn-outline-light.btn-danger{color:#fff!important;background-color:#dc3545!important;border-color:#dc3545!important}