:root {
    --dark-green: #142C14;
    --cal-poly: #2D5128;
    --fern-green: #537B2F;   
    --asparagus: #8DA750;    
    --mindaro: #d3dfc5;      
    --blanco-puro: #ffffff;
}

/* Animaciones */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-green {
    0% { box-shadow: 0 0 0 0 rgba(141, 167, 80, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(141, 167, 80, 0); }
    100% { box-shadow: 0 0 0 0 rgba(141, 167, 80, 0); }
}

/* Estilos de Base */
body {
    background-color: var(--mindaro);
    background-image: url("https://www.transparenttextures.com/patterns/natural-paper.png");
    background-attachment: fixed;
    font-family: 'Quicksand', sans-serif;
    color: var(--dark-green);
    margin: 0;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

/* Encabezado */
h1 {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(3rem, 8vw, 5rem);
    color: var(--blanco-puro);
    text-transform: uppercase;
    letter-spacing: 6px;
    background-color: var(--dark-green);
    padding: 20px 60px;
    border-radius: 20px;
    margin-bottom: 50px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease-out;
    text-align: center;
    font-weight: 400;
}

/* Grid de Contenido */
.contenedor {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    width: 100%;
    animation: fadeInUp 1.2s ease-out;
    margin-bottom: 60px;
}

.contenedor > div {
    padding: 40px;
    border-radius: 40px;
    box-shadow: 0 15px 35px rgba(45, 81, 40, 0.12);
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-bottom: 8px solid rgba(0,0,0,0.1);
}

.contenedor div:hover {
    transform: translateY(-10px);
}

.contenedor p {
    font-size: 1.2rem;
    line-height: 1.6;
    font-weight: 500;
}

/* Variaciones de Color */
.cercanos {
    background-color: var(--cal-poly);
    color: var(--mindaro);
    border: 2px solid var(--dark-green);
}

.noTanCercanos {
    background-color: var(--blanco-puro);
    color: var(--cal-poly);
    border: 3px solid var(--asparagus);
}

.lejanos {
    background-color: var(--asparagus);
    color: var(--blanco-puro);
    border: 2px solid var(--fern-green);
}

/* Botón Regresar */
.btn-regresar {
    display: inline-block;
    background: var(--fern-green);
    color: white;
    padding: 18px 45px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.4s ease;
    box-shadow: 0 10px 20px rgba(83, 123, 47, 0.3);
    animation: fadeInUp 1.4s ease-out, pulse-green 2s infinite;
}

.btn-regresar:hover {
    transform: scale(1.05) translateY(-5px);
    background: var(--dark-green);
    box-shadow: 0 15px 30px rgba(20, 44, 20, 0.4);
}

/* Responsivo */
@media (max-width: 900px) {
    .contenedor {
        grid-template-columns: 1fr;
    }
    h1 {
        font-size: 2.5rem;
        padding: 15px 30px;
    }
}