* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

html, body {
    min-height: 100%;
}

body {
    position: relative;
    overflow-x: hidden;
    color: #fff;
}

#background-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    z-index: -1;
}

.contenido {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 20px;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

p {
    font-size: clamp(1rem, 2vw, 1.4rem);
    margin-bottom: 40px;
    max-width: 800px;
}

.credito {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
}

.boton {
    text-decoration: none;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.7);
    padding: 14px 34px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    transition: 0.3s ease;
}

.boton:hover {
    background: white;
    color: black;
    transform: translateY(-2px);
}

.about {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    padding: 100px 10%;
    position: relative;
    z-index: 1;
    background: rgba(17, 17, 17, 0.55);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.about-img img {
    width: 350px;
    max-width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.about-text {
    max-width: 600px;
}

.about-text h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 25px;
}

.about-text h3 {
    margin-top: 20px;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.about-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #e0e0e0;
    margin-bottom: 18px;
}

.list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list li {
    margin-bottom: 12px;
    padding-left: 18px;
    position: relative;
    color: #e0e0e0;
    line-height: 1.6;
}

.list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: white;
}

.topbar {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 10px 14px;
    border-radius: 999px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: 0.3s ease;
    font-weight: bold;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 900px) {
    .about {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding: 80px 6%;
    }

    .about-text {
        max-width: 100%;
    }

    .about-img img {
        width: min(320px, 100%);
    }

    .topbar {
        top: 15px;
        right: 15px;
    }
}
.projects-videos {
    padding: 80px 8%;
    position: relative;
    z-index: 2;
}

.projects-videos h2 {
    text-align: center;
    margin-bottom: 40px;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.video-card {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    padding-bottom: 12px;
}

.video-card video {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.video-card p {
    margin: 12px 16px 0;
    text-align: center;
}