/* UNIFIED STAR ANIMATION SYSTEM FOR ALL PORTFOLIO SECTIONS */

/* Star particle animation keyframes */
@keyframes floatStar {
    0% { 
        transform: translateY(0) rotate(0deg) scale(1); 
        opacity: 0; 
    }
    20% { 
        opacity: 0.8; 
    }
    80% { 
        opacity: 0.8; 
    }
    100% { 
        transform: translateY(-30px) rotate(360deg) scale(0.5); 
        opacity: 0; 
    }
}

@keyframes twinkleStar {
    0%, 100% { 
        opacity: 0.3; 
        transform: scale(1); 
    }
    50% { 
        opacity: 1; 
        transform: scale(1.2); 
    }
}

@keyframes shootingStar {
    0% { 
        transform: translateX(-100px) translateY(100px) rotate(45deg); 
        opacity: 0; 
    }
    50% { 
        opacity: 1; 
    }
    100% { 
        transform: translateX(100px) translateY(-100px) rotate(45deg); 
        opacity: 0; 
    }
}

/* Star particles container */
.star-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
    border-radius: 12px;
}

/* Individual star particles */
.star-particle {
    position: absolute;
    background-color: rgba(240, 165, 0, 0.6);
    border-radius: 50%;
    opacity: 0;
    box-shadow: 0 0 15px rgba(240, 165, 0, 0.9);
    transition: opacity 0.5s ease;
}

/* Star shapes using CSS */
.star-particle.star-shape::before {
    content: '✦';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: rgba(240, 165, 0, 0.8);
    font-size: 8px;
    line-height: 1;
}

.star-particle.star-shape {
    background: none;
    box-shadow: none;
}

/* Different star sizes */
.star-particle.small {
    width: 3px;
    height: 3px;
}

.star-particle.medium {
    width: 5px;
    height: 5px;
}

.star-particle.large {
    width: 7px;
    height: 7px;
}

/* Enhanced hover effects for all cards */
.card:hover,
.project-card:hover,
.pdf-card:hover,
.timeline-content:hover,
.skill:hover,
.blog-post:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 10px 30px rgba(240, 165, 0, 0.3);
}

/* Star animation trigger classes */
.stars-active .star-particle {
    opacity: 1;
}

.stars-twinkle .star-particle {
    animation: twinkleStar 2s ease-in-out infinite;
}

.stars-float .star-particle {
    animation: floatStar 3s ease-in-out infinite;
}

/* Shooting star effect */
.shooting-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: linear-gradient(45deg, transparent, rgba(240, 165, 0, 1), transparent);
    border-radius: 50%;
    animation: shootingStar 2s ease-in-out;
}

/* Constellation effect for larger elements */
.constellation .star-particle {
    animation: twinkleStar 3s ease-in-out infinite;
}

.constellation .star-particle:nth-child(2n) {
    animation-delay: 0.5s;
}

.constellation .star-particle:nth-child(3n) {
    animation-delay: 1s;
}

.constellation .star-particle:nth-child(4n) {
    animation-delay: 1.5s;
}

/* Mobile optimization */
@media (max-width: 768px) {
    .star-particle {
        animation-duration: 2s !important;
    }
    
    /* Reduce particle count on mobile for performance */
    .star-particle:nth-child(n+8) {
        display: none;
    }
}

/* Accessibility - Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .star-particle {
        animation: none !important;
    }
    
    .shooting-star {
        animation: none !important;
        opacity: 0 !important;
    }
}