body {
    margin: 0;
    padding: 0;
    font-family: 'Cinzel', serif;
    background: #000;
    color: #fff;
    overflow-x: hidden;
}
header {
    text-align: center;
    padding: 40px 20px;
    color: #ff1b2d;
    animation: pulseGlow 3s infinite;
}
.logo {
    font-size: 4rem;
    letter-spacing: 4px;
    text-shadow: 0 0 20px red, 0 0 40px #ff1b2d;
    margin: 0;
}
.subtitulo {
    letter-spacing: 3px;
    opacity: 0.9;
}
.hero {
    width: 100%;
    overflow: hidden;
    position: relative;
    background: url("../media/images_pagina/Stranger_Things.jpg") no-repeat center center;
    background-size: cover;
    height: auto;
    min-height: 75vh;
}
.hero-img {
    display: none; /
}
.hero-text {
    position: absolute;
    bottom: 30px;
    left: 40px;
    font-size: 3rem;
    color: #ff1b2d;
    text-shadow: 0 0 25px rgb(0, 0, 0), 0 0 50px #ff1b2d;
    animation: titleGlow 4s infinite;
}
.proyectos {
    text-align: center;
    padding: 30px;
}

.proyectos h2 {
    font-size: 2.8rem;
    text-shadow: 0 0 10px #ff1b2d;
    margin-bottom: 40px;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 20px;
}
.tarjeta {
    background: rgba(10, 10, 10, 0.75);
    border: 1px solid #ff1b2d;
    padding: 20px;
    border-radius: 12px;
    backdrop-filter: blur(3px);
    box-shadow: 0 0 20px #ff1b2d55;
    transition: transform 0.3s, box-shadow 0.3s;
    transform-style: preserve-3d;
}

.tarjeta:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 0 25px #ff1b2d, 0 0 50px red;
}

.tarjeta img {
    width: 100%;
    border-radius: 6px;
    margin-bottom: 15px;
}

.tarjeta h3 {
    margin-top: 0;
    color: #ff4a50;
}
.btn {
    display: inline-block;
    padding: 8px 18px;
    background: #ff1b2d;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: 0.2s;
    box-shadow: 0 0 15px red;
}

.btn:hover {
    background: #ff4757;
    box-shadow: 0 0 25px #ff1b2d;
}
footer {
    text-align: center;
    padding: 20px;
    margin-top: 50px;
    opacity: 0.75;
    font-size: 0.9rem;
}
.menu ul {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
    display: flex;
    justify-content: center;
    gap: 30px;
}
.menu ul li a {
    color: #ff1b2d;
    text-decoration: none;
    font-size: 1.2rem;
    transition: 0.3s;
}
.menu ul li a:hover {
    color: #ff4757;
    text-shadow: 0 0 10px #ff1b2d;
}