.imagem-de-fundo {
    background-image: url('../img/600x400.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    width: 100%;
    height: 100%;
}

.logo-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center; 
}

.circle {
    position: relative;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 15px #ae00ff,
                0 0 30px #ae00ff,
                0 0 45px #ae00ff,
                inset 0 0 15px #00ffff;
    animation: pulse 3s infinite alternate;
    z-index: 10;
    border: 2px solid #00ffff;
}

.initials {
    font-size: 48px;
    font-weight: bold;
    color: #ffffff;
    text-shadow: 0 0 10px #1eff00,
                 0 0 20px #1eff00;
    margin-bottom: 10px;
    letter-spacing: 5px;
    display: flex;
    align-items: center;
}

.cursor {
    display: inline-block;
    width: 0.5em;
    height: 1em;
    /* background-color: #ae00ff; */
    /* box-shadow: 0 0 10px #ae00ff,
                0 0 20px #ae00ff; */
    animation: blink 1s step-end infinite;
    vertical-align: middle;
    margin-left: 2px;
}

.subtext {
    font-size: 16px;
    color: #00ffff;
    text-shadow: 0 0 5px #00ffff;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.rays-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 5;
}

.ray {
    position: absolute;
    background: linear-gradient(to right, 
              rgba(255, 0, 255, 0.8), 
              rgba(0, 255, 255, 0.8));
    height: 2px;
    transform-origin: left center;
    animation: ray-grow linear forwards;
    filter: blur(1px);
    border-radius: 2px;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, #ae00ff, transparent);
    opacity: 0.7;
    animation: float linear infinite;
}

.grid-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(to right, rgba(0, 255, 255, 0.1) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    z-index: 0;
}

.sun {
    position: absolute;
    width: 300px;
    height: 150px;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(ellipse at center, rgba(255, 0, 255, 0.2) 0%, transparent 70%);
    z-index: 0;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 15px #ae00ff,
                    0 0 30px #ae00ff,
                    0 0 45px #ae00ff,
                    inset 0 0 15px #00ffff;
    }
    100% {
        box-shadow: 0 0 25px #ae00ff,
                    0 0 50px #ae00ff,
                    0 0 75px #ae00ff,
                    inset 0 0 25px #00ffff;
    }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes ray-grow {
    0% {
        width: 0;
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        width: var(--length);
        opacity: 0;
    }
}

@keyframes float {
    0% {
        transform: translate(0, 0);
        opacity: 0;
    }
    10% {
        opacity: 0.7;
    }
    90% {
        opacity: 0.7;
    }
    100% {
        transform: translate(var(--tx), var(--ty));
        opacity: 0;
    }
}