/* =====================================================
   STARFALL ANIMATION STYLES
   Falling stars background effect
   ===================================================== */

/* ========================================
   STARFALL CONTAINER
======================================== */
.starfall-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: transparent;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    z-index: var(--z-background);
    pointer-events: none;
}

/* ========================================
   STARFIELD
======================================== */
.starfall-container .starfield {
    position: relative;
    width: 100%;
    height: 100%;
    transform: rotateZ(45deg);
}

/* ========================================
   FALLING STAR BASE
======================================== */
.starfall-container .falling-star {
    position: absolute;
    height: 2px;
    background: linear-gradient(-45deg, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
    border-radius: 999px;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.7));
    animation:
        star-tail 3000ms ease-in-out infinite,
        star-falling 3000ms ease-in-out infinite;
}

/* ========================================
   STAR GLOW EFFECTS
======================================== */
.starfall-container .falling-star::before,
.starfall-container .falling-star::after {
    content: '';
    position: absolute;
    top: calc(50% - 1px);
    right: 0;
    height: 2px;
    background: linear-gradient(-45deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
    border-radius: 100%;
    animation: star-glow 3000ms ease-in-out infinite;
}

.starfall-container .falling-star::before {
    transform: translateX(50%) rotateZ(45deg);
}

.starfall-container .falling-star::after {
    transform: translateX(50%) rotateZ(-45deg);
}

/* ========================================
   STAR ANIMATIONS
======================================== */
@keyframes star-tail {
    0% { width: 0; }
    30% { width: 100px; }
    100% { width: 0; }
}

@keyframes star-glow {
    0% { width: 0; }
    50% { width: 30px; }
    100% { width: 0; }
}

@keyframes star-falling {
    0% { transform: translateX(0); }
    100% { transform: translateX(300px); }
}

/* ========================================
   STATIC BACKGROUND STARS
======================================== */
.static-star {
    position: fixed;
    width: 3px;
    height: 3px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: twinkle-star 3s ease-in-out infinite;
    pointer-events: none;
    z-index: var(--z-background);
}

@keyframes twinkle-star {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.5);
    }
}

/* ========================================
   SHOOTING STAR VARIATIONS
======================================== */

/* Pink tinted stars */
.falling-star.pink {
    background: linear-gradient(-45deg, rgba(255, 143, 171, 1), rgba(255, 143, 171, 0));
    filter: drop-shadow(0 0 6px rgba(255, 143, 171, 0.7));
}

.falling-star.pink::before,
.falling-star.pink::after {
    background: linear-gradient(-45deg, rgba(255, 143, 171, 0), rgba(255, 143, 171, 1), rgba(255, 143, 171, 0));
}

/* Purple tinted stars */
.falling-star.purple {
    background: linear-gradient(-45deg, rgba(200, 180, 230, 1), rgba(200, 180, 230, 0));
    filter: drop-shadow(0 0 6px rgba(200, 180, 230, 0.7));
}

.falling-star.purple::before,
.falling-star.purple::after {
    background: linear-gradient(-45deg, rgba(200, 180, 230, 0), rgba(200, 180, 230, 1), rgba(200, 180, 230, 0));
}

/* Golden stars */
.falling-star.gold {
    background: linear-gradient(-45deg, rgb(203, 231, 255), rgba(255, 215, 0, 0));
    filter: drop-shadow(0 0 6px rgba(218, 237, 255, 0.7));
}

.falling-star.gold::before,
.falling-star.gold::after {
    background: linear-gradient(-45deg, rgba(255, 215, 0, 0), rgb(226, 250, 255), rgba(255, 215, 0, 0));
}

/* ========================================
   SPEED VARIATIONS
======================================== */
.falling-star.fast {
    animation-duration: 2000ms, 2000ms;
}

.falling-star.slow {
    animation-duration: 4000ms, 4000ms;
}

/* ========================================
   SIZE VARIATIONS
======================================== */
.falling-star.large {
    height: 3px;
}

.falling-star.large::before,
.falling-star.large::after {
    height: 3px;
    top: calc(50% - 1.5px);
}

.falling-star.small {
    height: 1px;
}

.falling-star.small::before,
.falling-star.small::after {
    height: 1px;
    top: calc(50% - 0.5px);
}

/* ========================================
   REDUCED MOTION
======================================== */
@media (prefers-reduced-motion: reduce) {
    .starfall-container .falling-star {
        animation: none;
        opacity: 0.5;
        width: 50px;
    }
    
    .starfall-container .falling-star::before,
    .starfall-container .falling-star::after {
        animation: none;
        width: 15px;
    }
    
    .static-star {
        animation: none;
        opacity: 0.6;
    }
}