* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Georgia', serif;
    background-color: #8b0000; /* rojo profundo */
    background-image: radial-gradient(rgba(255,255,255,0.15) 10%, transparent 11%);
    background-size: 35px 35px; /* lunares finos */
    background-attachment: fixed;
}

.navbar {
    padding: 15px;
    text-align: center;
}

.navbar ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 40px;
}

.navbar a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    letter-spacing: 1px;
    position: relative;
    transition: 0.3s ease;
}

.navbar a::after {
    content: "";
    position: absolute;
    width: 0%;
    height: 2px;
    background: white;
    left: 0;
    bottom: -5px;
    transition: 0.4s;
}

.navbar a:hover::after {
    width: 100%;
}

.active::after {
    width: 100%;
}

.columna {
    float: left;
    padding: 30px;
    min-height: 500px;
    border-radius: 25px;
    margin-bottom: 30px;
    backdrop-filter: blur(8px);
}

.izquierda {
    width: 25%;
    margin-right: 2%;
}

.derecha {
    width: 73%;
}

.fila:after {
    content: "";
    display: table;
    clear: both;
}

#c1 {
    background: rgba(0, 0, 0, 0.75);
    border: 2px solid rgba(255,255,255,0.3);
    box-shadow: 0 0 25px rgba(0,0,0,0.5);
    color: white;
}

#c2 {
    background: rgba(250, 206, 206, 0.92);
    border: 2px solid rgba(0,0,0,0.1);
    box-shadow: 0 0 30px rgba(0,0,0,0.2);
}

h2 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.8rem;
    letter-spacing: 2px;
    color: rgba(250, 206, 206, 0.92);
}

#c1 h2 {
    color: white;
}

#c2 h2 {
    color: #8b0000;
}

p, li {
    font-size: 1.1rem;
    line-height: 1.6;
}

#c1 p, #c1 li {
    color: #f1f1f1;
}

#c2 p, #c2 li {
    color: #333333;
}

.tarjeta-mini {
    background: linear-gradient(145deg, #a00000, #6e0000);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.3);
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    transition: 0.4s ease;
}

.tarjeta-mini:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.6);
}

.tarjeta-mini p {
    color: white !important;
}

.iresponsive,
.img-card {
    border-radius: 25px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
}

.iresponsive img,
.img-card img {
    width: 70%;        
    display: block;
    margin: 0 auto;
    border-radius: 25px;
    transition: transform 0.5s ease, filter 0.5s ease;
}

.iresponsive img:hover,
.img-card img:hover {
    transform: scale(1.07);
    filter: brightness(1.1);
}

.imagen-centro {
    text-align: center;   
    margin: 20px 0;       
}

.sin-recuadro {
    border: none;         
    border-radius: 25px;  
    max-width: 100%;      
    height: auto;         
    display: inline-block; 
    box-shadow: 0 8px 20px rgba(0,0,0,0.3); 
    transition: transform 0.5s ease, filter 0.5s ease; 
}

.sin-recuadro:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.lazo {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, #ff2a2a 60%, #8b0000 100%);
    border-radius: 50%;
    position: absolute;
    top: -30px;
    right: -30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
}

@media screen and (max-width: 768px) {

    .columna {
        width: 100%;
    }

    .navbar ul {
        gap: 20px;
    }

    .navbar a {
        font-size: 0.95rem;
    }
}