:root {
    --dark-custom: #272525;
    --game-bg-color: rgba(142, 170, 169, 0.8); 
}

body {
    margin: 0;
    padding: 0;
    background: url("../img/fondo_principal.png") no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- ANIMACIÓN DE HOJAS --- */
.hojas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; 
    z-index: 0;
    overflow: hidden;
}

.hoja-cae {
    position: absolute;
    top: -100px;
    width: 90px; 
    opacity: 1;
    animation: caer linear infinite;
}

@keyframes caer {
    0% { top: -100px; transform: translateX(0) rotate(0deg); }
    25% { transform: translateX(40px) rotate(45deg); }
    50% { transform: translateX(-40px) rotate(90deg); }
    75% { transform: translateX(40px) rotate(135deg); }
    100% { top: 110vh; transform: translateX(0) rotate(180deg); }
}

/* Distribución manual de las hojas para que no caigan juntas */
.h1 { left: 5%; animation-duration: 8s; animation-delay: 0s; }
.h2 { left: 15%; animation-duration: 12s; animation-delay: 2s; }
.h3 { left: 25%; animation-duration: 10s; animation-delay: 5s; }
.h4 { left: 35%; animation-duration: 15s; animation-delay: 1s; }
.h5 { left: 45%; animation-duration: 9s; animation-delay: 3s; }
.h6 { left: 55%; animation-duration: 11s; animation-delay: 0s; }
.h7 { left: 65%; animation-duration: 14s; animation-delay: 4s; }
.h8 { left: 75%; animation-duration: 10s; animation-delay: 6s; }
.h9 { left: 85%; animation-duration: 13s; animation-delay: 2s; }
.h10 { left: 95%; animation-duration: 16s; animation-delay: 1s; }

/* --- ESTRUCTURA --- */
.tree-container {
    position: fixed;
    width: 180px;
    height: 100vh;
    z-index: 1;
}
.trunk-left { left: 0; }
.trunk-right { right: 0; }

.img-tronco {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.panda-hugging {
    position: fixed;
    width: 180px;
    z-index: 5;
    pointer-events: none;
}
.panda-left { left: 0; bottom: 10%; }
.panda-right { right: 0; top: 10%; }

.panda-hugging img {
    width: 100%;
    height: auto;
    filter: drop-shadow(4px 6px 12px rgba(0,0,0,0.3));
}

.titulo {
    text-align: center;
    margin-top: 40px;
    position: relative;
    z-index: 10;
}
.titulo img {
    width: 400px;
    filter: drop-shadow(3px 3px 0 white);
}

.mensajes {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 80px auto;
    position: relative;
    z-index: 10;
    width: 100%;
}

.card {
    position: relative;
    width: 250px;
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    font-weight: bold;
    color: #4a3b32;
    font-family: 'Montserrat', Arial, sans-serif;
    min-height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    border: 3px solid rgba(255, 255, 255, 0.6);
    background: rgba(244, 241, 219, 0.85);
}

.rojo { margin-right: -120px; }
.verde { margin-left: 200px; }

.oso {
    position: absolute;
    width: 320px;
    z-index: 15;
    bottom: -55px;
    pointer-events: none;
}
.izquierda { left: -124px !important; }
.derecha { right: -122px !important; bottom: -50px !important; }

.info-lectosoft {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 40px auto 40px auto;
    position: relative;
    z-index: 10;
    width: 100%;
}

.card.info {
    width: 600px;
    margin: 0;
    padding: 30px 50px;
    background: rgba(244, 241, 219, 0.95);
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    border-radius: 25px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card.info h3 {
    font-family: 'Luckiest Guy', cursive;
    color: #1b4c11;
    font-size: 40px;
    margin-top: 0;
    margin-bottom: 15px;
    letter-spacing: 1px;
    text-align: center;
}

.card.info p {
    font-family: 'Montserrat', Arial, sans-serif;
    color: #4a3b32;
    font-size: 22px;
    line-height: 1.5;
    text-align: center;
    margin: 0;
    font-weight: 500;
}

.juego {
    width: 600px;
    margin: 80px auto 100px auto;
    background-color: var(--game-bg-color);
    padding: 20px 40px 30px 40px; 
    border-radius: 35px;
    text-align: center;
    position: relative;
    z-index: 10;
    border: 5px solid white;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.6);
}

.juego h2 {
    margin: 0;
    position: absolute;
    top: 0; 
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 20;
    width: 100%;
}

.juego h2 img {
    width: 550px; 
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.4));
}

.opciones {
    display: flex;
    justify-content: space-around;
    margin: 40px 0 20px 0; 
}

.opcion {
    background: rgba(255, 255, 255, 0.5);
    border: 3px solid white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.opcion:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.opcion img {
    width: 120px; 
}

.opcion p {
    margin-top: 15px;
    margin-bottom: 0;
    color: #272525;
    font-size: 24px; 
    font-family: 'Luckiest Guy', cursive;
}

.btn-jugar {
    display: inline-block;
    background: linear-gradient(180deg, #9ccc65 0%, #689f38 100%);
    color: white;
    font-family: 'Luckiest Guy', cursive;
    font-size: 36px;
    padding: 15px 60px;
    border-radius: 50px;
    text-decoration: none;
    border: 5px solid white;
    box-shadow: 0 8px 15px rgba(0,0,0,0.2), inset 0 -4px 0 rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    letter-spacing: 2px;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.3);
}

.btn-jugar:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 12px 20px rgba(0,0,0,0.3), inset 0 -4px 0 rgba(0,0,0,0.1);
}

.btn-jugar:active {
    transform: scale(0.95);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.btn-huella {
    display: inline-block;
    border: none;
    background: none;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-huella img {
    height: 90px;
    width: 90px;
}

.btn-huella:hover {
    transform: scale(1.15);
}

.btn-huella:hover img {
    filter: drop-shadow(0 0 10px #ffffff);
}

footer {
    background-color: var(--dark-custom);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px;
    position: relative;
    z-index: 100;
    margin-top: auto;
}
footer h4 { color: #ffeb3b; }
footer .footer-left img { width: 60px; }
footer .footer-right img { width: 100px; }