/* دکمه‌های شناور: بازگشت به بالا (چپ) و پشتیبانی (راست) */
.site-floating-actions {
    --site-fab-size: 48px;
    --site-fab-gap: 14px;
    --site-fab-bottom-desktop: 22px;
    --site-fab-bottom-mobile: calc(66px + var(--site-fab-gap));
    --site-fab-right-mobile: var(--site-fab-gap);
    --site-fab-z: 1040;
    --site-fab-backdrop-z: 1046;
    --site-fab-panel-z: 1048;
    --site-support-ease: cubic-bezier(0.32, 0.72, 0, 1);
    --site-support-duration: 0.42s;
    --site-support-fade-duration: 0.38s;
    --site-fab-bg: color-mix(in srgb, var(--C2) 90%, transparent);
    --site-fab-color: var(--C7);
    --site-fab-shadow: 0 8px 28px rgba(0, 0, 0, 0.16);
    --site-fab-opacity-idle: 0.82;
    --site-fab-opacity-hover: 1;
    --site-support-accent: var(--C3);
    --site-support-panel-bg: color-mix(in srgb, var(--C7) 94%, transparent);
    --site-support-panel-border: color-mix(in srgb, var(--C4) 70%, transparent);
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: var(--site-fab-z);
}

.site-fab {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--site-fab-size);
    height: var(--site-fab-size);
    border: 1px solid color-mix(in srgb, var(--C7) 18%, transparent);
    border-radius: 50%;
    background: var(--site-fab-bg);
    color: var(--site-fab-color);
    box-shadow: var(--site-fab-shadow);
    opacity: var(--site-fab-opacity-idle);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: opacity 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease, visibility 0.22s ease;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}

.site-fab:hover,
.site-fab:focus-visible {
    opacity: var(--site-fab-opacity-hover);
    transform: translateY(-3px);
    color: var(--site-fab-color);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}

.site-fab i {
    font-size: 1.35rem;
    line-height: 1;
}

.site-fab--back-top {
    position: fixed;
    left: var(--site-fab-gap);
    bottom: var(--site-fab-bottom-desktop);
    visibility: hidden;
    opacity: 0;
    transform: translateY(10px);
    z-index: calc(var(--site-fab-z) + 1);
}

.site-fab--back-top.is-visible {
    visibility: visible;
    opacity: var(--site-fab-opacity-idle);
    transform: translateY(0);
}

.site-fab--back-top.is-visible:hover,
.site-fab--back-top.is-visible:focus-visible {
    opacity: var(--site-fab-opacity-hover);
}

.site-fab-support {
    position: fixed;
    right: var(--site-fab-gap);
    bottom: var(--site-fab-bottom-desktop);
    pointer-events: none;
    z-index: calc(var(--site-fab-z) + 2);
}

.site-fab-support > .site-fab {
    pointer-events: auto;
    position: relative;
    z-index: 1;
}

.site-fab--support.is-active {
    opacity: 1;
    transform: scale(1.04);
    background: var(--site-support-accent);
    color: var(--C7);
    border-color: transparent;
}

/* زیر مودال / بک‌دراپ (۱۰۵۰+) */
body.modal-open .site-floating-actions {
    z-index: 1035 !important;
    pointer-events: none;
}

body.modal-open .site-floating-actions .site-fab,
body.modal-open .site-floating-actions .site-fab-support {
    visibility: hidden;
    opacity: 0 !important;
    pointer-events: none !important;
}

.site-floating-actions.is-support-open .site-fab-support,
.site-floating-actions.is-support-showing .site-fab-support,
.site-floating-actions.is-support-closing .site-fab-support {
    z-index: calc(var(--site-fab-panel-z) + 1);
}

.site-floating-actions.is-support-open .site-fab--back-top,
.site-floating-actions.is-support-showing .site-fab--back-top,
.site-floating-actions.is-support-open .site-fab-support > .site-fab--support,
.site-floating-actions.is-support-showing .site-fab-support > .site-fab--support,
.site-floating-actions.is-support-closing .site-fab--back-top,
.site-floating-actions.is-support-closing .site-fab-support > .site-fab--support {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: scale(0.88);
}

/* بک‌دراپ — مثل سرچ و آف‌کنواس حساب */
.site-fab-support__backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background-color: #000000a3;
    z-index: var(--site-fab-backdrop-z);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    backdrop-filter: blur(0);
    -webkit-backdrop-filter: blur(0);
    isolation: isolate;
    transform: translateZ(0);
    transition:
        opacity var(--site-support-fade-duration) var(--site-support-ease),
        backdrop-filter var(--site-support-fade-duration) var(--site-support-ease),
        -webkit-backdrop-filter var(--site-support-fade-duration) var(--site-support-ease),
        visibility 0s linear var(--site-support-duration);
}

.site-fab-support__backdrop.is-visible {
    pointer-events: auto;
    visibility: visible;
    opacity: 1;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition:
        opacity var(--site-support-fade-duration) var(--site-support-ease),
        backdrop-filter var(--site-support-fade-duration) var(--site-support-ease),
        -webkit-backdrop-filter var(--site-support-fade-duration) var(--site-support-ease),
        visibility 0s linear 0s;
}

.site-fab-support__backdrop.is-closing {
    pointer-events: none;
    opacity: 0;
    backdrop-filter: blur(0);
    -webkit-backdrop-filter: blur(0);
    visibility: hidden;
}

/* پنل — bottom sheet در همه سایزها (مثل آف‌کنواس حساب) */
.site-fab-support__panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    width: 100%;
    max-width: none;
    max-height: min(78vh, 560px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--site-support-panel-bg);
    color: var(--C2);
    border: 1px solid var(--site-support-panel-border);
    border-bottom: none;
    border-radius: 1.25rem 1.25rem 0 0;
    box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    visibility: hidden;
    opacity: 0;
    transform: translate3d(0, 100%, 0);
    transform-origin: bottom center;
    transition:
        transform var(--site-support-duration) var(--site-support-ease),
        opacity var(--site-support-fade-duration) var(--site-support-ease),
        visibility 0s linear var(--site-support-duration);
    pointer-events: auto;
    z-index: var(--site-fab-panel-z);
    will-change: transform, opacity;
    backface-visibility: hidden;
}

.site-floating-actions.is-support-showing .site-fab-support__panel,
.site-floating-actions.is-support-open .site-fab-support__panel,
.site-floating-actions.is-support-closing .site-fab-support__panel {
    visibility: visible;
}

.site-floating-actions.is-support-showing .site-fab-support__panel {
    opacity: 1 !important;
    transform: translate3d(0, 0, 0) !important;
    -webkit-transform: translate3d(0, 0, 0) !important;
    transition:
        transform var(--site-support-duration) var(--site-support-ease),
        opacity var(--site-support-fade-duration) var(--site-support-ease),
        visibility 0s linear 0s !important;
}

.site-floating-actions.is-support-open .site-fab-support__panel {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0);
    transition:
        transform var(--site-support-duration) var(--site-support-ease),
        opacity var(--site-support-fade-duration) var(--site-support-ease),
        visibility 0s linear 0s;
}

.site-floating-actions.is-support-closing .site-fab-support__panel {
    opacity: 0;
    transform: translate3d(0, 100%, 0);
    transition:
        transform var(--site-support-duration) var(--site-support-ease),
        opacity var(--site-support-fade-duration) var(--site-support-ease),
        visibility 0s linear var(--site-support-duration);
}

.site-fab-support__sheet-handle {
    display: block;
    width: 42px;
    height: 4px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--C5) 55%, transparent);
    margin: 0.55rem auto 0;
    flex-shrink: 0;
}

.site-fab-support__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.45rem 1rem 0.85rem;
    border-bottom: 1px solid color-mix(in srgb, var(--C4) 55%, transparent);
    background: linear-gradient(180deg, color-mix(in srgb, var(--C10) 75%, transparent), transparent);
}

.site-fab-support__header-main {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.site-fab-support__header-badge {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, color-mix(in srgb, var(--site-support-accent) 88%, white), var(--site-support-accent));
    color: var(--C7);
    box-shadow: 0 8px 20px color-mix(in srgb, var(--site-support-accent) 35%, transparent);
    flex-shrink: 0;
}

.site-fab-support__header-badge i {
    font-size: 1.25rem;
}

.site-fab-support__title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--C2);
}

.site-fab-support__subtitle {
    margin: 0.15rem 0 0;
    font-size: 0.78rem;
    color: var(--C5);
    line-height: 1.4;
}

.site-fab-support__close {
    border: none;
    background: color-mix(in srgb, var(--C4) 35%, transparent);
    color: var(--C5);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.site-fab-support__close:hover,
.site-fab-support__close:focus-visible {
    background: var(--C4);
    color: var(--C2);
}

.site-fab-support__body {
    overflow-y: auto;
    padding: 0.65rem 0.75rem 0.85rem;
    scrollbar-width: thin;
}

.site-fab-support__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-fab-support__card + .site-fab-support__card {
    margin-top: 0.5rem;
}

.site-fab-support__item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 0.85rem;
    border-radius: 0.9rem;
    color: var(--C2);
    text-decoration: none;
    background: color-mix(in srgb, var(--C7) 88%, var(--C10));
    border: 1px solid color-mix(in srgb, var(--C4) 45%, transparent);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.site-fab-support__item:hover,
.site-fab-support__item:focus-visible {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--site-support-accent) 35%, var(--C4));
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.08);
    color: var(--C2);
}

.site-fab-support__item-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.site-fab-support__item-icon--accent {
    background: color-mix(in srgb, var(--site-support-accent) 14%, var(--C7));
    color: var(--site-support-accent);
}

.site-fab-support__item-icon--accent i {
    font-size: 1.2rem;
}

.site-fab-support__item-icon--channel {
    background: color-mix(in srgb, var(--C10) 80%, var(--C7));
}

.site-fab-support__item-icon--channel .contact-channel-icon {
    width: 22px;
    height: 22px;
}

.site-fab-support__item-body {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
    flex: 1;
}

.site-fab-support__label {
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.35;
}

.site-fab-support__desc {
    font-size: 0.76rem;
    color: var(--C5);
    line-height: 1.35;
}

.site-fab-support__chevron {
    color: var(--C5);
    font-size: 1rem;
    flex-shrink: 0;
    opacity: 0.75;
}

.site-fab-support__divider {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin: 0.85rem 0 0.65rem;
    padding: 0 0.15rem;
    color: var(--C5);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.site-fab-support__divider::before,
.site-fab-support__divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: color-mix(in srgb, var(--C4) 70%, transparent);
}

.site-fab-support__divider span {
    white-space: nowrap;
}

[data-bs-theme="dark"] .site-fab {
    --site-fab-bg: color-mix(in srgb, var(--C2) 94%, transparent);
    --site-fab-color: var(--C3);
    border-color: color-mix(in srgb, var(--C3) 22%, transparent);
}

[data-bs-theme="dark"] .site-fab i {
    color: var(--C3);
}

[data-bs-theme="dark"] .site-fab--support.is-active {
    color: var(--C2);
}

[data-bs-theme="dark"] .site-floating-actions {
    --site-support-panel-bg: color-mix(in srgb, var(--C2) 96%, transparent);
    --site-support-panel-border: color-mix(in srgb, var(--C5) 30%, transparent);
}

[data-bs-theme="dark"] .site-fab-support__panel {
    color: var(--C7);
}

[data-bs-theme="dark"] .site-fab-support__header {
    background: linear-gradient(180deg, color-mix(in srgb, var(--C1) 55%, var(--C2)), transparent);
    border-bottom-color: color-mix(in srgb, var(--C5) 28%, transparent);
}

[data-bs-theme="dark"] .site-fab-support__title {
    color: var(--C3);
}

[data-bs-theme="dark"] .site-fab-support__subtitle {
    color: var(--C6);
}

[data-bs-theme="dark"] .site-fab-support__close {
    color: var(--C6);
    background: color-mix(in srgb, var(--C5) 22%, transparent);
}

[data-bs-theme="dark"] .site-fab-support__close:hover,
[data-bs-theme="dark"] .site-fab-support__close:focus-visible {
    background: color-mix(in srgb, var(--C5) 35%, transparent);
    color: var(--C7);
}

[data-bs-theme="dark"] .site-fab-support__item {
    background: color-mix(in srgb, var(--C1) 50%, var(--C2));
    border-color: color-mix(in srgb, var(--C5) 24%, transparent);
    color: var(--C7);
}

[data-bs-theme="dark"] .site-fab-support__item:hover,
[data-bs-theme="dark"] .site-fab-support__item:focus-visible {
    background: color-mix(in srgb, var(--C1) 68%, var(--C2));
    color: var(--C7);
}

[data-bs-theme="dark"] .site-fab-support__label {
    color: var(--C3);
}

[data-bs-theme="dark"] .site-fab-support__desc,
[data-bs-theme="dark"] .site-fab-support__chevron {
    color: var(--C6);
}

[data-bs-theme="dark"] .site-fab-support__divider {
    color: var(--C6);
}

[data-bs-theme="dark"] .site-fab-support__divider::before,
[data-bs-theme="dark"] .site-fab-support__divider::after {
    background: color-mix(in srgb, var(--C5) 35%, transparent);
}

@media (min-width: 992px) {
    .site-floating-actions[data-back-top-d="false"] .site-fab--back-top {
        display: none !important;
    }

    .site-floating-actions[data-support-d="false"] .site-fab-support,
    .site-floating-actions[data-support-d="false"] .site-fab-support__backdrop {
        display: none !important;
    }

    .site-fab-support__panel {
        left: auto;
        right: var(--site-fab-gap);
        width: min(400px, calc(100vw - 2 * var(--site-fab-gap)));
    }
}

@media (max-width: 991.98px) {
    .site-fab--back-top {
        bottom: var(--site-fab-bottom-mobile);
    }

    .site-fab-support {
        right: var(--site-fab-right-mobile);
        bottom: var(--site-fab-bottom-mobile);
    }

    .site-fab-support__panel {
        padding-bottom: 66px;
    }

    .site-fab-support__body {
        padding-bottom: calc(0.85rem + 66px);
    }

    .site-floating-actions[data-back-top-m="false"] .site-fab--back-top {
        display: none !important;
    }

    .site-floating-actions[data-support-m="false"] .site-fab-support,
    .site-floating-actions[data-support-m="false"] .site-fab-support__backdrop {
        display: none !important;
    }
}

@media (max-width: 992px) and (orientation: landscape) {
    .site-floating-actions {
        --site-fab-bottom-mobile: calc(var(--site-fab-gap) + env(safe-area-inset-bottom, 0px));
        --site-fab-right-mobile: calc(66px + var(--site-fab-gap) + env(safe-area-inset-right, 0px));
    }

    .site-fab--back-top {
        bottom: var(--site-fab-bottom-mobile);
        left: calc(var(--site-fab-gap) + env(safe-area-inset-left, 0px));
    }

    .site-fab-support {
        right: var(--site-fab-right-mobile);
        bottom: var(--site-fab-bottom-mobile);
    }

    .site-fab-support__backdrop {
        top: var(--header-height, 60px);
        right: 66px;
        left: 0;
        bottom: 0;
    }

    .site-fab-support__panel {
        top: var(--header-height, 60px);
        right: 66px;
        left: 0;
        width: auto;
        max-width: none;
        padding-bottom: 0;
        max-height: calc(100dvh - var(--header-height, 60px) - env(safe-area-inset-bottom, 0px));
    }

    .site-fab-support__body {
        padding-bottom: 0.85rem;
    }
}

body.site-fab-support-open {
    overflow: hidden;
    touch-action: none;
}

@media (prefers-reduced-motion: reduce) {
    .site-fab-support__backdrop,
    .site-fab-support__panel,
    .site-fab {
        transition: none !important;
    }
}