:root {
    /* Colores Fríos Futurísticos */
    --color-primary: rgb(20, 26, 91);      /* Cyan brillante */
    --color-secondary: rgb(150, 100, 255);    /* Morado lavanda */
    --color-accent: rgb(255, 230, 100);       /* Amarillo suave */
    
    /* Backgrounds */
    --bg-dark: #1a1a1a;
    --bg-darker: #0d0d0d;
    
      --bg-light: #c7c7c7;
    --bg-lighter: #f1f1f1;
    --color-bg-lighter: rgba(128, 130, 130, 0.05);
    /* Glass effect */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.2);
    /* --font-mono: ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace; */
}

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

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: var(--bg-dark);
    position: relative;
    /* font-family: ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji"; */
}

/* Líneas horizontales */
.horizontal-lines {
    position: absolute;
    border-radius: 50%;
    animation: breathe 8s ease-in-out infinite;
}

/* Contenedor de esferas con blur */
.blur-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    overflow: hidden;
}

.blur-sphere {
    position: absolute;
    border-radius: 80%;
    animation: breathe 8s ease-in-out infinite;
}

/* Esfera 1 - Cyan/Amarillo superior */
.sphere-1 {
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse at center, 
        var(--color-accent) 0%,
        var(--color-primary) 20%,
        var(--color-primary) 40%,
        transparent 70%
    );
    top: 5%;
    left: 45%;
    transform: translateX(-50%);
    filter: blur(60px);
    opacity: 0.8;
    animation-delay: 0s;
}

/* Esfera 2 - Amarillo inferior */
.sphere-2 {
    width: 550px;
    height: 280px;
    background: radial-gradient(ellipse at center, 
        var(--color-accent) 0%,
        rgba(255, 200, 100, 0.8) 50%,
        transparent 70%
    );
    bottom: 15%;
    left: 50%;
    transform: translateX(-50%);
    filter: blur(70px);
    opacity: 0.7;
    animation-delay: 2s;
}

/* Esfera 3 - Morado/Cyan izquierda */
.sphere-3 {
    width: 400px;
    height: 250px;
    background: radial-gradient(ellipse at center, 
        var(--color-secondary) 0%,
        var(--color-primary) 50%,
        transparent 70%
    );
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    filter: blur(80px);
    opacity: 0.6;
    animation-delay: 4s;
}

/* Esfera 4 - Cyan derecha */
.sphere-4 {
    width: 450px;
    height: 270px;
    background: radial-gradient(ellipse at center, 
        var(--color-primary) 0%,
        rgba(100, 200, 255, 0.6) 50%,
        transparent 70%
    );
    top: 50%;
    right: 15%;
    transform: translateY(-50%);
    filter: blur(75px);
    opacity: 0.7;
    animation-delay: 6s;
}

@keyframes breathe {
    0%, 100% {
        transform: scale(1) translateY(0);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.1) translateY(-20px);
        opacity: 0.9;
    }
}

/* Container centrado */
.container {
    position: relative;
    z-index: 10;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10rem;
}

/* Contenedor Glassmorphism */
.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(40px) saturate(140%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border-radius: 100rem;
    padding: 80px 100px;
    box-shadow: 0px 10px 32px 0 rgb(100 100 100 / 30%), inset 3px 1px 0px rgb(55 55 55 / 0%);
 
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.glass-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
}

.content {
    position: relative;
    z-index: 1;
}

/* Logo */
.logo {
    width: clamp(300px, 70vw, 800px);
    max-height: 7rem;
    padding: 1rem;
    filter: drop-shadow(0 0 40px rgba(100, 136, 255, 0.5))
            drop-shadow(0 0 60px rgba(150, 100, 255, 0.3));
    /* animation: logoGlow 4s ease-in-out infinite, logoFloat 3s ease-in-out infinite;
    transition: transform 0.3s ease; */
}
/* 
.logo:hover {
    transform: scale(1.05);
} */

/* @keyframes logoGlow {
    0%, 100% {
        filter: drop-shadow(0 0 30px rgba(100, 220, 255, 0.5))
                drop-shadow(0 0 60px rgba(150, 100, 255, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 50px rgba(100, 220, 255, 0.8))
                drop-shadow(0 0 80px rgba(150, 100, 255, 0.5));
    }
} */

/* @keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
} */

/* Subtitle */
.subtitle {
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    color: var(--bg-dark);
    text-transform: uppercase;
    letter-spacing: 0.4em;
    font-weight: 200;
    margin: 2rem;
}

/* Button */
.button {
    display: inline-block;
    padding: 16px 45px;
    background: rgb(103 187 211 / 10%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px;
    color: var(--bg-dark);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.7em;
    font-size: 0.75rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background:rgba(4, 5, 5, 0.071);
    color: var(--bg-light);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: -1;
}

.button:hover::before {
    width: 400px;
    height: 400px;
}

.button:hover {
    color: var(--bg-light);
    border-color: var(--bg-lighter);
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
    .blur-background{
        display: block;
    }
    .container {
        height: 100vh;
        display: flex;
        justify-content: center;
    }
    
    .glass-container {
        height: 100vh;
        display: flex;
        border-radius: 100rem;
        align-content: center;
        align-items: center;
    }
    
    .logo {
        max-height: 4rem;
        width: clamp(200px, 90vw, 400px);
    }
    
    .subtitle {
        font-weight: 200;
        font-size: 0.8rem;
        letter-spacing: 0.3em;
    }
    
    .blur-sphere {
        filter: blur(40px) !important;
    }
    .button{
        width: fit-content;
        letter-spacing: 2em;
        font-size: 0.75rem;
    }
}