* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    user-select: none;
    color: #ffffff;    
    letter-spacing: 1px;
}


html,
body {
    height: 100%;
    width: 100%;
    background-color: #001c1e;
    margin: 0;
    overflow-x: hidden; /* Evita scrolls raros */
}

#fondo {
    position: fixed; 
    height: 100vh;
    width: 100vw;
    top: 0;
    left: 0;
    z-index: 0; 
    
    /* Imagen de fondo original */
    background-image: url('../image/fondo3.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    
    /* Tus filtros originales aplicados al contenedor */
    opacity: 1; 
    filter: brightness(0.7) contrast(1) saturate(200%);
        mix-blend-mode: difference;

    /* Valores iniciales del mouse (Centro de la pantalla) */
    --mouse-x: 50%;
    --mouse-y: 50%;

    /* EFECTO LINTERNA: Usando porcentajes fijos para asegurar compatibilidad total */
    -webkit-mask-image: radial-gradient(
        35% 35% at var(--mouse-x) var(--mouse-y), 
        rgba(0, 0, 0, 1) 0%, 
        rgba(0, 0, 0, 0.3) 60%, 
        rgba(0, 0, 0, 0) 200%
    );
    mask-image: radial-gradient(
        35% 35% at var(--mouse-x) var(--mouse-y), 
        rgba(0, 0, 0, 1) 0%, 
        rgba(0, 0, 0, 0.3) 190%, 
        rgba(0, 0, 0, 0.4)280%
    );
   
    
}


.classBorder {
    border: 0px solid #ccc;

}

header {
    display: flex;
    /* gap: 40px; */
    padding-top: 20px;
    /* padding-left: 7%; */
    position: relative;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
    z-index: 10; /* Agrega esto */
}

nav {
    font-size: 16px;
    display: flex;
    gap: 9px;
    padding-left: 0%;
    position: relative;
    flex-direction: row;
    font-weight: 100;
    
}

#tec {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

#titulo {
    font-size: 70px;
    font-weight: bold;
    opacity: 0.5;
   
}

main {
    height: calc(100% - 200px);
    display: flex;
    gap: 206px;
    position: relative;
    text-align: center;
    /* padding-top: 15%; */
    flex-direction: column;
    justify-content: flex-end;
    z-index: 10; /* Agrega esto */
}

footer {
    padding-top: 31px;
    height: 40px;
    display: flex;
    gap: 9px;
    position: relative;
    justify-content: center;
    opacity: 0.5;
    z-index: 10; /* Agrega esto */
}

#logo {
    width: 250px;
    height: 90px;
    display: flex;
    background-size: contain;
    background-repeat: no-repeat;
    position: relative;
    background-image: url('../image/logo.webp');
    filter: drop-shadow(2px 4px 6px black);
}

#nombre {
    display: flex;
    color: #00fff2;
    gap: 9px;
    font-weight: bold;
    font-size: 35px;
}

#botones {
    display: flex;
    gap: 20px;
    justify-content: center;
    padding-left: 35%;
    padding-right: 35%;
}

.btn {
    padding: 10px 20px;
    background-color: #44494800;
    color: #ced9db;
    border: solid 1px #ced9dbad;
    border-radius: 10px;
    font-weight: 100;
    cursor: pointer;
}

.btnClasico {
    width: 100%;
    padding: 10px 20px;
    background-color: #2b2d304b;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-weight:600;
    cursor: pointer;
}

.btnRojo {
    width: 100%;
    padding: 10px 20px;
    background-color: #880928;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
}

.opacitiBtn:hover {
    box-shadow: 0 0 100px #5f80a37f;
}
.opacitiBtnTxt:hover {
    text-shadow: 0 0 40px #5f80a37f;
}