.contact-support-btn {
    position: fixed;
    right: max(12px, env(safe-area-inset-right));
    bottom: max(14px, env(safe-area-inset-bottom));
    z-index: 9999;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 16px;
    border-radius: 999px;
    background: linear-gradient(135deg, #229ed9 0%, #1a8bc7 100%);
    color: #fff;
    font-family: Poppins, system-ui, sans-serif;
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 4px 18px rgba(34, 158, 217, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}

.contact-support-btn:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(34, 158, 217, 0.55);
    color: #fff;
}

.contact-support-btn:active {
    transform: translateY(0);
}

.contact-support-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    fill: currentColor;
}

@media (max-width: 420px) {
    .contact-support-btn {
        padding: 10px 14px;
        font-size: 0.82rem;
        gap: 6px;
    }

    .contact-support-btn svg {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 600px) {
    .contact-support-btn {
        bottom: max(72px, calc(env(safe-area-inset-bottom) + 60px));
    }
}