.niva-slider {
    --niva-slider-navy: #00253c;
    position: relative;
    overflow: hidden;
    border-radius: var(--niva-slider-radius, 0);
    isolation: isolate;
    user-select: none;
}
.niva-slider__viewport { overflow: hidden; }
.niva-slider picture { display: block; }

/* خنثی کردن استایل عمومی دکمه‌ی قالب روی فلش‌ها و نقطه‌ها */
.niva-slider button.niva-slider__arrow,
.niva-slider button.niva-slider__dot {
    min-width: 0;
    min-height: 0;
    margin: 0;
    padding: 0;
    line-height: 0;
    font-size: 0;
    text-transform: none;
    box-shadow: none;
}
.niva-slider__slide img {
    display: block;
    width: 100%;
    height: auto;
    -webkit-user-drag: none;
}
.niva-slider__slide a { display: block; }

/* کشویی */
.niva-slider--slide .niva-slider__track {
    display: flex;
    transition: transform .6s cubic-bezier(.22, .61, .36, 1);
    will-change: transform;
}
.niva-slider--slide .niva-slider__slide { flex: 0 0 100%; min-width: 0; }

/* محو شدن */
.niva-slider--fade .niva-slider__track { display: grid; }
.niva-slider--fade .niva-slider__slide {
    grid-area: 1 / 1;
    opacity: 0;
    visibility: hidden;
    transition: opacity .7s ease, visibility .7s;
}
.niva-slider--fade .niva-slider__slide.is-active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

/* فلش‌ها */
.niva-slider button.niva-slider__arrow {
    position: absolute;
    top: 50%;
    z-index: 2;
    width: 44px;
    height: 44px;
    margin-top: -22px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .9);
    color: var(--niva-slider-navy);
    box-shadow: 0 6px 18px -6px rgba(0, 37, 60, .35);
    display: grid;
    place-items: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity .2s, background-color .2s, transform .2s;
}
.niva-slider__arrow svg { display: block; }
.niva-slider__arrow--prev { inset-inline-start: 16px; }
.niva-slider__arrow--next { inset-inline-end: 16px; }
.niva-slider:hover .niva-slider__arrow,
.niva-slider button.niva-slider__arrow:focus-visible { opacity: 1; }
.niva-slider button.niva-slider__arrow:hover { background: #fff; transform: scale(1.06); }

/* نقطه‌ها */
.niva-slider__dots {
    position: absolute;
    bottom: 10px;
    left: 50%;
    z-index: 2;
    transform: translateX(-50%);
    display: flex;
    gap: 0;
    padding: 0 6px;
    border-radius: 999px;
    background: rgba(0, 37, 60, .28);
    backdrop-filter: blur(4px);
}
/* ناحیه‌ی لمس ۲۴×۲۴ (استاندارد دسترس‌پذیری)؛ خودِ نقطه با ::before کشیده می‌شه */
.niva-slider button.niva-slider__dot {
    position: relative;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    cursor: pointer;
    transition: width .25s;
}
.niva-slider button.niva-slider__dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .6);
    transform: translate(-50%, -50%);
    transition: width .25s, background-color .25s;
}
.niva-slider button.niva-slider__dot.is-active { width: 36px; }
.niva-slider button.niva-slider__dot.is-active::before { width: 22px; background: #fff; }

@media (hover: none) {
    .niva-slider button.niva-slider__arrow { opacity: 1; }
}
@media (max-width: 767px) {
    .niva-slider button.niva-slider__arrow { width: 34px; height: 34px; margin-top: -17px; }
    .niva-slider__arrow svg { width: 18px; height: 18px; }
    .niva-slider__arrow--prev { inset-inline-start: 8px; }
    .niva-slider__arrow--next { inset-inline-end: 8px; }
    .niva-slider__dots { bottom: 8px; }
}
@media (prefers-reduced-motion: reduce) {
    .niva-slider__track,
    .niva-slider__slide { transition: none !important; }
}