/* Октябрь: вихрь листьев (редкое событие) */

#octoberWhirlwindLayer {
    position: fixed;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
    background: transparent;
}

.oct-ww {
    position: absolute;
    pointer-events: none;
    z-index: 20;
    width: 1px;
    height: 1px;
    animation: octWwTravel var(--travel-dur, 10s) ease-in-out forwards;
    opacity: 0;
}

@keyframes octWwTravel {
    0% {
        transform: translate(0, 0) scale(0.2);
        opacity: 0;
    }
    5% {
        opacity: 1;
        transform: translate(5vw, -3vh) scale(0.6);
    }
    15% { transform: translate(15vw, -8vh) scale(0.9); }
    40% { transform: translate(40vw, -20vh) scale(1); }
    70% { transform: translate(70vw, -15vh) scale(0.8); }
    90% {
        opacity: 0.7;
        transform: translate(90vw, -25vh) scale(0.5);
    }
    100% {
        transform: translate(110vw, -35vh) scale(0.2);
        opacity: 0;
    }
}

.oct-ww-leaf {
    position: absolute;
    left: 0;
    top: 0;
    transform-origin: 0 0;
    will-change: transform;
    pointer-events: none;
}

.oct-ww-leaf-shape {
    width: 28px;
    height: 42px;
    background: linear-gradient(135deg, var(--leaf-color1, #e58e26), var(--leaf-color2, #c97a1f));
    border-radius: 80% 0 80% 0;
    transform: rotate(-20deg);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    position: relative;
}

.oct-ww-leaf-shape::before,
.oct-ww-leaf-shape::after {
    content: '';
    position: absolute;
    border-radius: 30%;
}

.oct-ww-leaf-shape::before {
    top: 10%;
    left: 5%;
    width: 60%;
    height: 50%;
    border-right: 1px solid rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
    transform: rotate(15deg);
}

.oct-ww-leaf-shape::after {
    bottom: 15%;
    right: 10%;
    width: 30%;
    height: 30%;
    border-left: 1px solid rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(0, 0, 0, 0.15);
    transform: rotate(-10deg);
}

@media (prefers-reduced-motion: reduce) {
    #octoberWhirlwindLayer {
        display: none;
    }
}