/* Advanced Star Field Container */
.star-field {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    overflow: hidden;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0) 0%, rgba(0,0,0,0.1) 100%);
}

/* Particle Stars */
.star-particle {
    position: absolute;
    background: radial-gradient(circle, #ffffff 0%, #87ceeb 30%, transparent 70%);
    border-radius: 50%;
    filter: blur(0.5px);
    animation: particleFloat linear infinite;
}

/* Pulse Stars */
.star-pulse {
    position: absolute;
    background: #ffffff;
    border-radius: 50%;
    animation: pulseGlow ease-in-out infinite;
    filter: drop-shadow(0 0 8px #ffffff) drop-shadow(0 0 16px #87ceeb);
}

/* Hyperspace Stars */
.star-hyperspace {
    position: absolute;
    background: linear-gradient(90deg, transparent, #ffffff, #87ceeb, transparent);
    border-radius: 2px;
    opacity: 0;
    animation: hyperspaceJump linear infinite;
    filter: blur(1px);
}

/* Quantum Stars */
.star-quantum {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #ffffff;
    border-radius: 50%;
    opacity: 0;
    animation: quantumTeleport ease-in-out infinite;
    filter: drop-shadow(0 0 12px #ffffff) drop-shadow(0 0 24px #00ffff);
}

/* Nebula Particles */
.star-nebula {
    position: absolute;
    background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(135,206,235,0.4) 40%, transparent 70%);
    border-radius: 50%;
    filter: blur(2px);
    animation: nebulaSwirl ease-in-out infinite;
}

/* Advanced Animations */
@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0px) scale(0.5);
        opacity: 0;
        filter: blur(2px);
    }
    20% {
        opacity: 0.8;
        filter: blur(0.5px);
    }
    80% {
        opacity: 0.8;
        filter: blur(0.5px);
    }
    100% {
        transform: translateY(-100px) translateX(30px) scale(1);
        opacity: 0;
        filter: blur(2px);
    }
}

@keyframes pulseGlow {
    0% {
        transform: scale(0.8);
        opacity: 0.6;
        filter: drop-shadow(0 0 4px #ffffff) drop-shadow(0 0 8px #87ceeb);
    }
    50% {
        transform: scale(1.5);
        opacity: 1;
        filter: drop-shadow(0 0 16px #ffffff) drop-shadow(0 0 32px #87ceeb) drop-shadow(0 0 48px #00ffff);
    }
    100% {
        transform: scale(0.8);
        opacity: 0.6;
        filter: drop-shadow(0 0 4px #ffffff) drop-shadow(0 0 8px #87ceeb);
    }
}

@keyframes hyperspaceJump {
    0% {
        transform: translateZ(-2000px) rotateX(0deg);
        opacity: 0;
        width: 1px;
        height: 1px;
    }
    10% {
        opacity: 0.5;
        width: 2px;
        height: 20px;
    }
    50% {
        opacity: 1;
        transform: translateZ(-500px) rotateX(45deg);
        width: 4px;
        height: 100px;
    }
    90% {
        opacity: 1;
        transform: translateZ(-50px) rotateX(90deg);
        width: 6px;
        height: 200px;
    }
    100% {
        transform: translateZ(0) rotateX(180deg);
        opacity: 0;
        width: 8px;
        height: 300px;
    }
}

@keyframes quantumTeleport {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 0;
        filter: drop-shadow(0 0 0px #ffffff);
    }
    25% {
        transform: scale(1.5) rotate(90deg);
        opacity: 0.8;
        filter: drop-shadow(0 0 20px #ffffff) drop-shadow(0 0 40px #00ffff);
    }
    50% {
        transform: scale(0.5) rotate(180deg);
        opacity: 0.3;
        filter: drop-shadow(0 0 10px #ffffff);
    }
    75% {
        transform: scale(2) rotate(270deg);
        opacity: 1;
        filter: drop-shadow(0 0 30px #ffffff) drop-shadow(0 0 60px #00ffff) drop-shadow(0 0 90px #ff00ff);
    }
    100% {
        transform: scale(0) rotate(360deg);
        opacity: 0;
        filter: drop-shadow(0 0 0px #ffffff);
    }
}

@keyframes nebulaSwirl {
    0% {
        transform: rotate(0deg) scale(0.5);
        opacity: 0.3;
        filter: blur(3px);
    }
    33% {
        transform: rotate(120deg) scale(1);
        opacity: 0.7;
        filter: blur(1px);
    }
    66% {
        transform: rotate(240deg) scale(1.5);
        opacity: 1;
        filter: blur(0.5px);
    }
    100% {
        transform: rotate(360deg) scale(0.5);
        opacity: 0.3;
        filter: blur(3px);
    }
}