/* ==========================================================================
   CoinRex Homepage Background Animations v2
   Galaxy Night Sky + Shooting Stars + Broken Stars + Nebula Orbs
   ========================================================================== */

/* ---- Starfield (static background stars for depth) ---- */
.cr-starfield {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.cr-starfield-star {
    position: absolute;
    border-radius: 50%;
    background: #ffffff;
    pointer-events: none;
    opacity: 0.15;
}

/* ---- Galaxy Band (milky way stripe) ---- */
.cr-galaxy-band {
    position: absolute;
    top: -20%;
    left: -10%;
    width: 120%;
    height: 140%;
    background: 
        radial-gradient(ellipse at 30% 40%, rgba(120, 80, 200, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(29, 78, 216, 0.05) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 50%, rgba(212, 175, 55, 0.03) 0%, transparent 30%);
    pointer-events: none;
    z-index: 0;
    animation: crGalaxyRotate 60s ease-in-out infinite;
    transform-origin: center center;
}

@keyframes crGalaxyRotate {
    0% { transform: rotate(0deg) scale(1); opacity: 0.6; }
    25% { transform: rotate(3deg) scale(1.05); opacity: 0.8; }
    50% { transform: rotate(0deg) scale(1); opacity: 0.6; }
    75% { transform: rotate(-3deg) scale(1.05); opacity: 0.8; }
    100% { transform: rotate(0deg) scale(1); opacity: 0.6; }
}

/* ---- Particle Stars ---- */
.cr-particle {
    position: absolute;
    border-radius: 50%;
    background: #ffffff;
    pointer-events: none;
    z-index: 0;
    animation: crParticleFloat var(--particle-duration, 10s) ease-in-out infinite;
    animation-delay: var(--particle-delay, 0s);
    will-change: transform, opacity;
}

/* Twinkling stars */
.cr-particle.twinkle {
    animation-name: crParticleTwinkle;
}

/* Irregular star shapes (broken stars) */
.cr-particle.star-shape {
    border-radius: 0;
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    background: radial-gradient(circle at 30% 30%, #ffffff, #ffe08a);
}

/* Diamond shape (shattered fragment) */
.cr-particle.diamond-shape {
    border-radius: 0;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

/* Triangle shape (debris) */
.cr-particle.triangle-shape {
    border-radius: 0;
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}

/* Particles with glowing trails */
.cr-particle.trail {
    box-shadow: 
        0 0 2px 0 currentColor,
        0 0 6px 1px currentColor,
        -8px 8px 4px -2px rgba(255,255,255,0.15),
        -16px 16px 6px -4px rgba(255,255,255,0.05);
}

/* Debris fragments (broken star burst - JS animated) */
.cr-debris-fragment {
    border-radius: 50%;
    pointer-events: none;
    will-change: transform, opacity;
}

@keyframes crParticleTwinkle {
    0%, 100% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: var(--particle-opacity, 0.5);
    }
    20% {
        transform: translateY(-30px) translateX(12px) scale(1.8);
        opacity: 1;
    }
    40% {
        transform: translateY(-60px) translateX(-8px) scale(1);
        opacity: calc(var(--particle-opacity, 0.5) * 0.3);
    }
    60% {
        transform: translateY(-90px) translateX(15px) scale(1.4);
        opacity: 0.9;
    }
    80% {
        transform: translateY(-120px) translateX(-5px) scale(0.8);
        opacity: calc(var(--particle-opacity, 0.5) * 0.5);
    }
    100% {
        transform: translateY(-160px) translateX(0) scale(1);
        opacity: var(--particle-opacity, 0.5);
    }
}

/* ---- Shooting Stars ---- */
.cr-shooting-star {
    position: absolute;
    width: 3px;
    height: 3px;
    background: #ffffff;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    animation: crShootingStar var(--shoot-duration, 3s) ease-out infinite;
    animation-delay: var(--shoot-delay, 0s);
}

.cr-shooting-star::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%;
    width: 80px;
    height: 1.5px;
    background: linear-gradient(to right, rgba(255,255,255,0.6), transparent);
    transform: translateY(-50%);
}

@keyframes crShootingStar {
    0% {
        transform: translate(0, 0) rotate(35deg);
        opacity: 0;
    }
    5% {
        opacity: 1;
    }
    15% {
        transform: translate(200px, 140px) rotate(35deg);
        opacity: 1;
    }
    20% {
        opacity: 0;
    }
    100% {
        opacity: 0;
    }
}

/* ---- Floating Orbs (Nebula Clouds) ---- */
.cr-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(70px);
    will-change: transform, opacity;
    animation: crOrbDrift var(--orb-duration, 18s) ease-in-out infinite;
    animation-delay: var(--orb-delay, 0s);
}

.cr-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(29, 78, 216, 0.18) 0%, rgba(120, 80, 200, 0.08) 40%, transparent 70%);
    top: -15%;
    left: -10%;
}

.cr-orb-2 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.12) 0%, rgba(200, 100, 50, 0.06) 40%, transparent 70%);
    bottom: -10%;
    right: -10%;
}

.cr-orb-3 {
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.10) 0%, rgba(147, 51, 234, 0.06) 40%, transparent 70%);
    top: 35%;
    left: 45%;
}

@keyframes crOrbDrift {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.5;
    }
    25% {
        transform: translate(40px, -25px) scale(1.15);
        opacity: 0.7;
    }
    50% {
        transform: translate(-25px, 20px) scale(0.9);
        opacity: 0.4;
    }
    75% {
        transform: translate(20px, 35px) scale(1.1);
        opacity: 0.6;
    }
    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.5;
    }
}

/* ---- Hero Background Layer Setup ---- */
.cr-hero-bg-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

/* ---- Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
    .cr-particle,
    .cr-orb,
    .cr-shooting-star,
    .cr-galaxy-band,
    .cr-debris-fragment,
    .cr-starfield-star {
        animation: none !important;
        opacity: 0.2 !important;
    }
    .cr-shooting-star::after {
        display: none;
    }
}

/* ---- Mobile: fewer particles, smaller orbs ---- */
@media (max-width: 768px) {
    .cr-orb-1 {
        width: 250px;
        height: 250px;
    }
    .cr-orb-2 {
        width: 220px;
        height: 220px;
    }
    .cr-orb-3 {
        width: 180px;
        height: 180px;
    }
    .cr-shooting-star::after {
        width: 30px;
    }
}